This alert expired on 1 September 2026 at 21:45 UTC. It is kept here as a record.
It is the 19th strongest of the 40 detections recorded within 20 km of this point since 13 July 2026. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Flash Flood Warning issued September 1 at 2:36PM MDT until September 1 at 3:45PM MDT by NWS Salt Lake City UT
An estimated 45,685 people live within 50 km of this point.
Nearby, since 13 July 2026
- July 17, 2026 · score 28 · 15.8 km
- August 28, 2026 · score 43 · 17.7 km
- September 1, 2026 · score 28 · 18.9 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 28 out of 100, at 85 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 28 / 100 |
| Our confidence | 85% |
| Coordinates | 37.2580, -112.9280 |
| Nearest City | Hurricane (33 km) |
| Population Exposed | 45.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-01T20:36:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.a362c5779dafbc189bc78d0e99bc99d6af3c177a.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Kane, UT; Washington, UT |
| Headline | Flash Flood Warning issued September 1 at 2:36PM MDT until September 1 at 3:45PM MDT by NWS Salt Lake City UT |
| Expires | 2026-09-01T15:45:00-06:00 |
| SenderName | NWS Salt Lake City UT |
| HasExactCoords | true |
| Iem TypeSummary | F |
| Iem City | 2 W Hildale |
| Iem County | Washington |
| Iem State | UT |
| Iem Wfo | SLC |
| Iem Remark | Flood wave overtopped road around 130 PM. |
| MergedSources | [{"id":"iem_F_37.010_-113.000_1788291000000","source":"iem","severity":"low","severityValue":25,"timestamp":1788291000000,"latitude":37.01,"longitude":-113}] |
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 10 February 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 28/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.