Live Flood Map — Flood Warnings & High-Water Alerts Worldwide
CityAlert's flood layer combines significant flood events flagged by GDACS, England's Environment Agency flood-warning service, Poland's IMGW hydrological gauge alerts and flood warnings issued by national weather services — plus media-geocoded flood reports in covered cities. Flash floods are among the deadliest weather hazards; this page tracks official alerts as they're issued.
Floods on the map right now
GDACS flood events refresh every 15 minutes, EA flood warnings every 15, IMGW gauges every 30 and weather-service warnings every 5–30; this page regenerates every 10 minutes.
Latest floods incidents
- flood · mediumSep 15, 01:00 UTC
- flood · mediumSep 14, 01:00 UTC
- flood · mediumSep 12, 01:00 UTC
- flood · mediumSep 12, 01:00 UTC
- flood · mediumSep 12, 01:00 UTC
- flood · mediumSep 11, 01:00 UTC
- flood · mediumSep 11, 01:00 UTC
- flood · mediumSep 10, 01:00 UTC
- flood · mediumSep 10, 01:00 UTC
Data sources
- GDACS — UN/EU global disaster alert system (flood events)
- Environment Agency flood warnings (England)
- IMGW hydrological gauge alerts (Poland)
- National weather-service flood warnings (NWS, ECCC and regional agencies)
- Media-geocoded flood reports in covered cities
- Community-submitted reports
Incidents update continuously — this page reflects the latest feed data. Media-sourced incidents are approximate block-level locations. Methodology & full source list
Floods by city
Every city page layers floods data over its local sources:
Frequently asked questions
How current is the flood map?
GDACS flood events and Environment Agency warnings refresh every 15 minutes, IMGW gauge alerts every 30 and national weather warnings every 5–30. This page regenerates every 10 minutes; the live map auto-refreshes in the browser.
What's the difference between a flood warning and a gauge alert?
Warnings (EA, NWS, ECCC and met services) are official forecasts of flooding risk to people and property. Gauge alerts like IMGW's hydrological feed are triggered when measured river levels cross thresholds — observed high water, not a forecast.
Which areas have the deepest flood coverage?
England is covered by the Environment Agency's national flood-warning service, Poland by IMWG gauge alerts, the US and Canada by NWS/ECCC warnings, and the rest of the world by GDACS flood events and media reports.
Does CityAlert show flood extent or evacuation zones?
CityAlert maps alert locations and links to the issuing agency — follow the linked EA, met-service or civil-protection pages for inundation maps, evacuation zones and official guidance.