This alert expired on 11 March 2026 at 00:15 UTC. It is kept here as a record.
No stronger detection stands among the 55 recorded within 20 km of this point since 10 March 2026 — 2 others scored the same.
What the source measured
NOAA reported: Tornado Warning issued March 10 at 6:48PM CDT until March 10 at 7:15PM CDT by NWS Norman OK
An estimated 1,139,605 people live within 50 km of this point.
Nearby, since 10 March 2026
- June 23, 2026 · score 52 · 7.7 km
- May 10, 2026 · score 52 · 11.8 km
- March 10, 2026 · score 76 · 12.8 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 76 out of 100, at 82 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | critical |
| Calamity Score (ours) | 76 / 100 |
| Our confidence | 82% |
| Coordinates | 35.3800, -97.7240 |
| Nearest City | Mustang (0 km) |
| Population Exposed | 1.1M within 50 km |
| Impact Tier | catastrophic |
| Timestamp | 2026-03-10T23:48:00.000Z |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Canadian, OK; Cleveland, OK; Grady, OK; McClain, OK; Oklahoma, OK |
| Headline | Tornado Warning issued March 10 at 6:48PM CDT until March 10 at 7:15PM CDT by NWS Norman OK |
| Expires | 2026-03-10T19:15:00-05:00 |
| SenderName | NWS Norman OK |
| HasExactCoords | true |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | 1 E Cogar |
| Iem County | Caddo |
| Iem State | OK |
| Iem Wfo | OUN |
| Iem Remark | Report from mPING: Quarter (1.00 in.). |
| MergedSources | [{"id":"iem_H_35.330_-98.120_1773183780000","source":"iem","severity":"low","severityValue":25,"timestamp":1773183780000,"latitude":35.33,"longitude":-98.12}] |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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 76/100, near Mustang (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.