This alert is in force until 1 September 2026, 12:15 UTC.
It is the 27th strongest of the 37 detections recorded within 20 km of this point since 15 July 2026. The last comparable one was on 31 August 2026.
What the source measured
NOAA reported: Flash Flood Warning issued August 31 at 10:26PM MST until September 1 at 5:15AM MST by NWS Flagstaff AZ
Nearby, since 15 July 2026
- July 29, 2026 · score 22 · 20.7 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 16 out of 100, at 71 % 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) | 16 / 100 |
| Our confidence | 71% |
| Coordinates | 37.2624, -111.9331 |
| Nearest City | Cedar City (110 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-01T05:26:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.f0fa4af1cd23648e77d1944afccfd4cd666c8c52.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Coconino, AZ; Kane, UT; Washington, UT; Garfield, UT; Kane, UT |
| Headline | Flash Flood Warning issued August 31 at 10:26PM MST until September 1 at 5:15AM MST by NWS Flagstaff AZ |
| Expires | 2026-09-01T05:15:00-07:00 |
| SenderName | NWS Flagstaff AZ |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.f0fa4af1cd23648e77d1944afccfd4cd666c8c52.001.1","noaa_urn:oid:2.49.0.1.840.0.805aedb84bb04a4db051e0bf9fe2e737820ae7fb.001.1","noaa_urn:oid:2.49.0.1.840.0.c32f4fa3b4bb5a22abdfac5612f9e9204bc508e7.001.1"] |
| Iem TypeSummary | F |
| Iem City | 5 W Escalante |
| Iem County | Garfield |
| Iem State | UT |
| Iem Wfo | SLC |
| Iem Remark | Videos of flash flooding where Birch Creek enters into the Escalante River. |
| MergedSources | [{"id":"iem_F_37.780_-111.590_1788222480000","source":"iem","severity":"low","severityValue":25,"timestamp":1788222480000,"latitude":37.78,"longitude":-111.59},{"id":"iem_F_37.770_-111.680_1788220500000","source":"iem","severity":"low","severityValue":25,"timestamp":1788220500000,"latitude":37.77,"longitude":-111.68}] |
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.
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 188 scientific monitoring sources.