This alert expired on 31 May 2026 at 13:45 UTC. It is kept here as a record.
It is the 7th strongest of the 24 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 19 May 2026. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued May 31 at 2:43AM CDT until May 31 at 8:45AM CDT by NWS Des Moines IA
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 16 out of 100, at 60 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 16 / 100 |
| Our confidence | 60% |
| Coordinates | 40.7207, -94.8836 |
| Nearest City | Bellevue (97 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-31T07:43:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.c5e703fc48f2cdd45fc030a0ef7268cca70936fa.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Taylor, IA |
| Headline | Flash Flood Warning issued May 31 at 2:43AM CDT until May 31 at 8:45AM CDT by NWS Des Moines IA |
| Expires | 2026-05-31T08:45:00-05:00 |
| SenderName | NWS Des Moines IA |
| HasExactCoords | true |
Safety Information
During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 16/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.