GDACS, the European Commission and United Nations alert system, rates the likely humanitarian impact of this flood at its orange level. The rating is an automatic estimate, not a record of what has happened.
The Global Disaster Alert and Coordination System (GDACS) has an orange alert in force for flooding in China. GDACS records the event as beginning on 31 July 2026 and ending on 7 September 2026.
No severity figure is shown. GDACS records no unit for this event's severity, so the figure it carries does not measure anything that can be stated.
GDACS assembled this alert from the Global Flood Awareness System. 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
- 31 July 2026, 01:00 UTC (as recorded by the source)
- Source last revised
- 6 September 2026, 06:23 UTC
- Published here
- 12 September 2026, 02:10 UTC
Evidence
- Record identifier
FL:1104081- Retrieved
- 12 September 2026, 02:10 UTC
- Snapshot checksum
d30197dfb96db1cb23e45a5f4a153cb70bff371ca2b2d03a5a5fe68a5c2e073f
Where each figure above comes from (7 values)
Revision history
-
12 September 2026, 02:10 UTC — First publication
Assembled from the source record listed under evidence. This record predates the start of this service's coverage and was added when the source was first read.
Limits of this brief
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.