Catastrophe Review
US Disaster Activity: May 2026
2026-05-01 through 2026-05-31 · All data from federal sources
2968
Total Events
3
Peril Types
49
States Affected
Activity by Peril
Earthquakes
1419max 6.9 · avg 3.7
Floods
1182max 8.0 · avg 7.3
Wildfires
367max 7.5 · avg 2.4
Significant Events (severity 3.0+)
Flash Flood Warning issued May 21 at 6:13PM CDT until May 21 at 9:15PM CDT by NWS New Orleans LAUS-MS · May 21
8.0Flash Flood Warning issued May 28 at 5:36AM EDT until May 28 at 8:30AM EDT by NWS Morristown TNUS-TN · May 28
8.0Flash Flood Warning issued May 1 at 9:15AM CDT until May 1 at 12:15PM CDT by NWS Midland/Odessa TXUS-TX · May 1
8.0Flash Flood Warning issued May 31 at 2:43AM CDT until May 31 at 8:45AM CDT by NWS Des Moines IAUS-IA · May 31
8.0Flash Flood Warning issued May 18 at 11:54AM CDT until May 18 at 3:45PM CDT by NWS Springfield MOUS-MO · May 18
8.0Flash Flood Warning issued May 30 at 3:46AM EDT until May 30 at 7:45AM EDT by NWS Morristown TNUS-TN · May 30
8.0Flash Flood Warning issued May 24 at 8:39PM EDT until May 24 at 8:45PM EDT by NWS Jackson KYUS-KY · May 25
8.0Flash Flood Warning issued May 30 at 8:38PM CDT until May 30 at 11:45PM CDT by NWS Little Rock ARUS-AR · May 31
8.0Data Sources
Event data sourced from USGS (earthquakes), NOAA NHC (hurricanes), NWS flood alerts (floods), NOAA SPC (severe weather), NIFC (wildfires), and NASA FIRMS (fire hotspots). All data is ingested directly from federal agency APIs with full provenance tracking.
Decision-support intelligence — not a primary alerting or dispatch system. Verify against official sources.