This alert expired on 10 May 2026 at 15:00 UTC. It is kept here as a record.
It is the 4th strongest of the 57 detections recorded within 20 km of this point since 10 March 2026. The last comparable one was on 8 May 2026. 14 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued May 10 at 7:09AM CDT until May 10 at 10:00AM CDT by NWS Norman OK
An estimated 1,123,117 people live within 50 km of this point.
Nearby, since 10 March 2026
- May 10, 2026 · score 52 · 0.0 km
- August 7, 2026 · score 46 · 5.2 km
- June 27, 2026 · score 52 · 7.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 52 out of 100, at 81 % 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) | 52 / 100 |
| Our confidence | 81% |
| Coordinates | 35.5833, -97.5367 |
| Nearest City | Edmond (9 km) |
| Population Exposed | 1.1M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-10T12:09:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.f720f731d5fffcbdfcdac6a3096cf25e4ac7c388.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Oklahoma, OK |
| Headline | Flash Flood Warning issued May 10 at 7:09AM CDT until May 10 at 10:00AM CDT by NWS Norman OK |
| Expires | 2026-05-10T10:00:00-05:00 |
| SenderName | NWS Norman OK |
| 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 near Edmond?
Calamity.live data shows a weather event with CalamityScore 52/100, near Edmond (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.