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Global Disaster Alert and Coordination System issued a red alert for a tropical cyclone affecting 5 countries, CHAMPI-26

GDACS, the European Commission and United Nations alert system, rates the likely humanitarian impact of this tropical cyclone at its red level. The rating is an automatic estimate, not a record of what has happened.

What this record does not establish →

The Global Disaster Alert and Coordination System (GDACS) has a red alert in force for a tropical cyclone affecting Philippines, Guam, Japan, China and South Korea, CHAMPI-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 25 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

GDACS gives the maximum wind speed as 296.3 km/h. That is the figure in the record and nothing has been derived from it.

GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

Times

These are different things and are not interchangeable.

Event occurred
14 October 2026, 12:00 UTC (as recorded by the source)
Source last revised
26 October 2026, 22:00 UTC
Published here
14 October 2026, 15:02 UTC
Last changed here
25 October 2026, 16:02 UTC

Evidence

Record identifier
TC:1001338
Retrieved
28 October 2026, 01:05 UTC
Snapshot checksum
7419986af335d43d90ab512937067cd978da3679871fdf266080babcd341a2cf
Attribution
Global Disaster Alert and Coordination System (GDACS), a joint initiative of the European Commission and the United Nations. (C) European Union. — Creative Commons Attribution 4.0 (European Commission reuse policy)
Where each figure above comes from (7 values)
ValueAs publishedOriginSource field or calculation
GDACS alert level Red field properties.alertlevel
GDACS's own estimate of likely humanitarian impact: green, orange or red. It is a model output, not an observation.
Hazard type TC field properties.eventtype
Reported here as “tropical cyclone”.
Affected countries Philippines, Guam, Japan, China, South Korea field properties.affectedcountries[].countryname
Start of the event, per GDACS 2026-10-14 field properties.fromdate
End of the event, per GDACS 2026-10-25 field properties.todate
For an event GDACS still lists as current this is the latest date it has assessed, not the date the hazard ended.
Maximum wind speed 296.3 km/h field properties.severitydata.severity
GDACS also supplies a sentence describing this figure. That sentence is not republished here: for tropical cyclones it pairs a storm classification with a wind speed that contradicts it. The number and its unit are taken as given.
GLIDE number TC-2026-000192-GUM field properties.glide
The globally unique disaster identifier, for cross-referencing.

Wording template gdacs_alert version 1.0.

Revision history

  • 25 October 2026, 16:02 UTC — The source revised its record

    The source revised its record. The figures above now follow the revised record; the previous wording is kept below.

    Show the wording this replaced

    Global Disaster Alert and Coordination System issued a red alert for a tropical cyclone affecting Philippines, Guam, Japan and China, CHAMPI-26

    The Global Disaster Alert and Coordination System (GDACS) has a red alert in force for a tropical cyclone affecting Philippines, Guam, Japan and China, CHAMPI-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 25 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

    GDACS gives the maximum wind speed as 296.3 km/h. That is the figure in the record and nothing has been derived from it.

    GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

    GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

  • 25 October 2026, 12:02 UTC — The source revised its record

    The source revised its record. The figures above now follow the revised record; the previous wording is kept below.

    Show the wording this replaced

    Global Disaster Alert and Coordination System issued a red alert for a tropical cyclone affecting Philippines, Guam and Japan, CHAMPI-26

    The Global Disaster Alert and Coordination System (GDACS) has a red alert in force for a tropical cyclone affecting Philippines, Guam and Japan, CHAMPI-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 23 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

    GDACS gives the maximum wind speed as 296.3 km/h. That is the figure in the record and nothing has been derived from it.

    GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

    GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

  • 23 October 2026, 03:03 UTC — The source revised its record

    The source revised its record. The figures above now follow the revised record; the previous wording is kept below.

    Show the wording this replaced

    Global Disaster Alert and Coordination System issued a red alert for a tropical cyclone affecting Philippines, Guam, Japan and Taiwan, CHAMPI-26

    The Global Disaster Alert and Coordination System (GDACS) has a red alert in force for a tropical cyclone affecting Philippines, Guam, Japan and Taiwan, CHAMPI-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 22 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

    GDACS gives the maximum wind speed as 296.3 km/h. That is the figure in the record and nothing has been derived from it.

    GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

    GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

  • 22 October 2026, 10:02 UTC — The source revised its record

    The source revised its record. The figures above now follow the revised record; the previous wording is kept below.

    Show the wording this replaced

    Global Disaster Alert and Coordination System issued a red alert for a tropical cyclone affecting Philippines, Guam and Japan, CHAMPI-26

    The Global Disaster Alert and Coordination System (GDACS) has a red alert in force for a tropical cyclone affecting Philippines, Guam and Japan, CHAMPI-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 22 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

    GDACS gives the maximum wind speed as 296.3 km/h. That is the figure in the record and nothing has been derived from it.

    GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

    GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

  • 22 October 2026, 03:03 UTC — The source revised its record

    The source revised its record. The figures above now follow the revised record; the previous wording is kept below.

    Show the wording this replaced

    Global Disaster Alert and Coordination System issued a red alert for a tropical cyclone affecting Philippines, Guam, Japan and Taiwan, CHAMPI-26

    The Global Disaster Alert and Coordination System (GDACS) has a red alert in force for a tropical cyclone affecting Philippines, Guam, Japan and Taiwan, CHAMPI-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 21 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

    GDACS gives the maximum wind speed as 296.3 km/h. That is the figure in the record and nothing has been derived from it.

    GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

    GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

  • 21 October 2026, 21:03 UTC — The source revised its record

    The source revised its record. The figures above now follow the revised record; the previous wording is kept below.

    Show the wording this replaced

    Global Disaster Alert and Coordination System issued a red alert for a tropical cyclone affecting Philippines, Guam and Japan, CHAMPI-26

    The Global Disaster Alert and Coordination System (GDACS) has a red alert in force for a tropical cyclone affecting Philippines, Guam and Japan, CHAMPI-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 21 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

    GDACS gives the maximum wind speed as 296.3 km/h. That is the figure in the record and nothing has been derived from it.

    GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

    GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

  • 21 October 2026, 15:02 UTC — The source revised its record

    The source revised its record. The figures above now follow the revised record; the previous wording is kept below.

    Show the wording this replaced

    Global Disaster Alert and Coordination System issued a red alert for a tropical cyclone affecting Guam and Japan, CHAMPI-26

    The Global Disaster Alert and Coordination System (GDACS) has a red alert in force for a tropical cyclone affecting Guam and Japan, CHAMPI-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 21 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

    GDACS gives the maximum wind speed as 296.3 km/h. That is the figure in the record and nothing has been derived from it.

    GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

    GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

  • 21 October 2026, 03:04 UTC — The source revised its record

    The source revised its record. The figures above now follow the revised record; the previous wording is kept below.

    Show the wording this replaced

    Global Disaster Alert and Coordination System issued a red alert for a tropical cyclone affecting Guam and Japan, CHAMPI-26

    The Global Disaster Alert and Coordination System (GDACS) has a red alert in force for a tropical cyclone affecting Guam and Japan, CHAMPI-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 20 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

    GDACS gives the maximum wind speed as 296.3 km/h. That is the figure in the record and nothing has been derived from it.

    GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

    GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

  • 20 October 2026, 21:03 UTC — The source revised its record

    The source revised its record. The figures above now follow the revised record; the previous wording is kept below.

    Show the wording this replaced

    Global Disaster Alert and Coordination System issued a red alert for a tropical cyclone affecting Guam and Japan, CHAMPI-26

    The Global Disaster Alert and Coordination System (GDACS) has a red alert in force for a tropical cyclone affecting Guam and Japan, CHAMPI-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 20 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

    GDACS gives the maximum wind speed as 287 km/h. That is the figure in the record and nothing has been derived from it.

    GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

    GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

  • 20 October 2026, 09:02 UTC — The source revised its record

    The source revised its record. The figures above now follow the revised record; the previous wording is kept below.

    Show the wording this replaced

    Global Disaster Alert and Coordination System issued a red alert for a tropical cyclone affecting Guam and Japan, CHAMPI-26

    The Global Disaster Alert and Coordination System (GDACS) has a red alert in force for a tropical cyclone affecting Guam and Japan, CHAMPI-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 20 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

    GDACS gives the maximum wind speed as 268.5 km/h. That is the figure in the record and nothing has been derived from it.

    GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

    GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

  • 20 October 2026, 03:04 UTC — The source revised its record

    The source revised its record. The figures above now follow the revised record; the previous wording is kept below.

    Show the wording this replaced

    Global Disaster Alert and Coordination System issued a red alert for a tropical cyclone affecting Guam and Japan, CHAMPI-26

    The Global Disaster Alert and Coordination System (GDACS) has a red alert in force for a tropical cyclone affecting Guam and Japan, CHAMPI-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 19 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

    GDACS gives the maximum wind speed as 268.5 km/h. That is the figure in the record and nothing has been derived from it.

    GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

    GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

  • 19 October 2026, 15:04 UTC — The source revised its record

    The source revised its record. The figures above now follow the revised record; the previous wording is kept below.

    Show the wording this replaced

    Global Disaster Alert and Coordination System issued a red alert for a tropical cyclone affecting Guam and Japan, CHAMPI-26

    The Global Disaster Alert and Coordination System (GDACS) has a red alert in force for a tropical cyclone affecting Guam and Japan, CHAMPI-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 19 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

    GDACS gives the maximum wind speed as 277.8 km/h. That is the figure in the record and nothing has been derived from it.

    GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

    GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

  • 19 October 2026, 08:03 UTC — The source revised its record

    The source revised its record. The figures above now follow the revised record; the previous wording is kept below.

    Show the wording this replaced

    Global Disaster Alert and Coordination System issued a red alert for a tropical cyclone affecting Guam and Japan, CHAMPI-26

    The Global Disaster Alert and Coordination System (GDACS) has a red alert in force for a tropical cyclone affecting Guam and Japan, CHAMPI-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 19 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

    GDACS gives the maximum wind speed as 268.5 km/h. That is the figure in the record and nothing has been derived from it.

    GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

    GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

  • 19 October 2026, 04:04 UTC — The source revised its record

    The source revised its record. The figures above now follow the revised record; the previous wording is kept below.

    Show the wording this replaced

    Global Disaster Alert and Coordination System issued a red alert for a tropical cyclone affecting Guam and Japan, CHAMPI-26

    The Global Disaster Alert and Coordination System (GDACS) has a red alert in force for a tropical cyclone affecting Guam and Japan, CHAMPI-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 18 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

    GDACS gives the maximum wind speed as 250 km/h. That is the figure in the record and nothing has been derived from it.

    GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

    GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

  • 18 October 2026, 21:00 UTC — The source revised its record

    The source revised its record. The figures above now follow the revised record; the previous wording is kept below.

    Show the wording this replaced

    Global Disaster Alert and Coordination System issued a red alert for a tropical cyclone affecting Guam, CHAMPI-26

    The Global Disaster Alert and Coordination System (GDACS) has a red alert in force for a tropical cyclone affecting Guam, CHAMPI-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 18 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

    GDACS gives the maximum wind speed as 259.3 km/h. That is the figure in the record and nothing has been derived from it.

    GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

    GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

  • 18 October 2026, 03:04 UTC — The source revised its record

    The source revised its record. The figures above now follow the revised record; the previous wording is kept below.

    Show the wording this replaced

    Global Disaster Alert and Coordination System issued a red alert for a tropical cyclone affecting Guam, CHAMPI-26

    The Global Disaster Alert and Coordination System (GDACS) has a red alert in force for a tropical cyclone affecting Guam, CHAMPI-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 17 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

    GDACS gives the maximum wind speed as 259.3 km/h. That is the figure in the record and nothing has been derived from it.

    GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

    GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

  • 17 October 2026, 08:00 UTC — The source revised its record

    The source revised its record. The figures above now follow the revised record; the previous wording is kept below.

    Show the wording this replaced

    Global Disaster Alert and Coordination System issued a red alert for a tropical cyclone affecting Guam, CHAMPI-26

    The Global Disaster Alert and Coordination System (GDACS) has a red alert in force for a tropical cyclone affecting Guam, CHAMPI-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 17 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

    GDACS gives the maximum wind speed as 250 km/h. That is the figure in the record and nothing has been derived from it.

    GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

    GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

  • 17 October 2026, 03:03 UTC — The source revised its record

    The source revised its record. The figures above now follow the revised record; the previous wording is kept below.

    Show the wording this replaced

    Global Disaster Alert and Coordination System issued a red alert for a tropical cyclone affecting Guam, CHAMPI-26

    The Global Disaster Alert and Coordination System (GDACS) has a red alert in force for a tropical cyclone affecting Guam, CHAMPI-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 16 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

    GDACS gives the maximum wind speed as 250 km/h. That is the figure in the record and nothing has been derived from it.

    GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

    GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

  • 16 October 2026, 21:01 UTC — The source revised its record

    The source revised its record. The figures above now follow the revised record; the previous wording is kept below.

    Show the wording this replaced

    Global Disaster Alert and Coordination System issued an orange alert for a tropical cyclone affecting Guam, CHAMPI-26

    The Global Disaster Alert and Coordination System (GDACS) has an orange alert in force for a tropical cyclone affecting Guam, CHAMPI-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 16 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

    GDACS gives the maximum wind speed as 250 km/h. That is the figure in the record and nothing has been derived from it.

    GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

    GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

  • 16 October 2026, 15:04 UTC — The source revised its record

    The source revised its record. The figures above now follow the revised record; the previous wording is kept below.

    Show the wording this replaced

    Global Disaster Alert and Coordination System issued an orange alert for a tropical cyclone affecting Guam, CHAMPI-26

    The Global Disaster Alert and Coordination System (GDACS) has an orange alert in force for a tropical cyclone affecting Guam, CHAMPI-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 16 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

    GDACS gives the maximum wind speed as 240.7 km/h. That is the figure in the record and nothing has been derived from it.

    GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

    GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

  • 16 October 2026, 08:01 UTC — The source revised its record

    The source revised its record. The figures above now follow the revised record; the previous wording is kept below.

    Show the wording this replaced

    Global Disaster Alert and Coordination System issued a red alert for a tropical cyclone affecting Guam, CHAMPI-26

    The Global Disaster Alert and Coordination System (GDACS) has a red alert in force for a tropical cyclone affecting Guam, CHAMPI-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 16 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

    GDACS gives the maximum wind speed as 240.7 km/h. That is the figure in the record and nothing has been derived from it.

    GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

    GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

  • 16 October 2026, 03:00 UTC — The source revised its record

    The source revised its record. The figures above now follow the revised record; the previous wording is kept below.

    Show the wording this replaced

    Global Disaster Alert and Coordination System issued an orange alert for a tropical cyclone affecting Guam, CHAMPI-26

    The Global Disaster Alert and Coordination System (GDACS) has an orange alert in force for a tropical cyclone affecting Guam, CHAMPI-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 15 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

    GDACS gives the maximum wind speed as 240.7 km/h. That is the figure in the record and nothing has been derived from it.

    GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

    GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

  • 15 October 2026, 22:04 UTC — The source revised its record

    The source revised its record. The figures above now follow the revised record; the previous wording is kept below.

    Show the wording this replaced

    Global Disaster Alert and Coordination System issued an orange alert for a tropical cyclone affecting Guam, CHAMPI-26

    The Global Disaster Alert and Coordination System (GDACS) has an orange alert in force for a tropical cyclone affecting Guam, CHAMPI-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 15 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

    GDACS gives the maximum wind speed as 231.5 km/h. That is the figure in the record and nothing has been derived from it.

    GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

    GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

  • 15 October 2026, 09:02 UTC — The source revised its record

    The source revised its record. The figures above now follow the revised record; the previous wording is kept below.

    Show the wording this replaced

    Global Disaster Alert and Coordination System issued an orange alert for a tropical cyclone affecting Guam, TWENTYNINE-26

    The Global Disaster Alert and Coordination System (GDACS) has an orange alert in force for a tropical cyclone affecting Guam, TWENTYNINE-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 15 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

    GDACS gives the maximum wind speed as 231.5 km/h. That is the figure in the record and nothing has been derived from it.

    GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

    GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

  • 15 October 2026, 03:04 UTC — The source revised its record

    The source revised its record. The figures above now follow the revised record; the previous wording is kept below.

    Show the wording this replaced

    Global Disaster Alert and Coordination System issued an orange alert for a tropical cyclone affecting Guam, TWENTYNINE-26

    The Global Disaster Alert and Coordination System (GDACS) has an orange alert in force for a tropical cyclone affecting Guam, TWENTYNINE-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 14 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

    GDACS gives the maximum wind speed as 231.5 km/h. That is the figure in the record and nothing has been derived from it.

    GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

    GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

  • 14 October 2026, 21:04 UTC — The source revised its record

    The source revised its record. The figures above now follow the revised record; the previous wording is kept below.

    Show the wording this replaced

    Global Disaster Alert and Coordination System issued an orange alert for a tropical cyclone, TWENTYNINE-26

    The Global Disaster Alert and Coordination System (GDACS) has an orange alert in force for a tropical cyclone, TWENTYNINE-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 14 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

    GDACS gives the maximum wind speed as 231.5 km/h. That is the figure in the record and nothing has been derived from it.

    GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

    GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

  • 14 October 2026, 20:02 UTC — The source revised its record

    The source revised its record. The figures above now follow the revised record; the previous wording is kept below.

    Show the wording this replaced

    Global Disaster Alert and Coordination System issued an orange alert for a tropical cyclone affecting Guam, TWENTYNINE-26

    The Global Disaster Alert and Coordination System (GDACS) has an orange alert in force for a tropical cyclone affecting Guam, TWENTYNINE-26. GDACS records the event as beginning on 14 October 2026, and has assessed it as far as 14 October 2026. The event is listed as still current, so that second date is how far the assessment reaches, not the date the hazard ended.

    GDACS gives the maximum wind speed as 231.5 km/h. That is the figure in the record and nothing has been derived from it.

    GDACS does not name a single upstream feed for this alert. An alert level is GDACS's own estimate of the humanitarian impact a hazard of this size is likely to have, calculated automatically from the hazard's measured extent and the population and vulnerability of the area. It is not a count of people affected, injured or killed, and this brief does not report any such count.

    GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace or override any warning issued by a national or local authority. Alert levels are revised as an event develops; any change to this record is shown in the revision history on this page.

  • 14 October 2026, 15:02 UTC — First publication

    Assembled from the source record listed under evidence.

What this record does not establish

Orange and red alerts from the Global Disaster Alert and Coordination System: floods, tropical cyclones, droughts, wildfires and volcanic activity. Green alerts are not reported — they are the great majority of what GDACS emits, eighty-five wildfire alerts in a single week in the week this source was built, and green means little or no humanitarian impact is expected. Earthquakes are not reported from GDACS at all: GDACS takes them from USGS, which this service already reads directly under its own magnitude rule, and publishing both would put one earthquake on the site twice from two records that can diverge after revision. An alert level is not a measurement of the hazard and not a count of anyone harmed. It is GDACS's automatic estimate of the humanitarian impact a hazard of that size is likely to have, calculated from the hazard's extent and the population and vulnerability of the area, and published within minutes of a detection. No brief here reports deaths, injuries, displacement or damage, because the record used does not establish them. A severity figure is published only where GDACS supplies a unit whose meaning has been checked. Floods and volcanic alerts arrive with a severity of zero and no unit at all, so no severity is shown for them and the brief says why. GDACS's own sentence describing a severity is never reproduced: for tropical cyclones it pairs a storm classification with a wind speed that contradicts it. GDACS states that its information is indicative, that it should not be used for decision-making without other sources, and that it does not replace any warning issued by a national or local authority. That statement appears on every brief.

If something here is wrong, write to [email protected] quoting the record identifier above. Corrections are recorded on this page, not made silently.