This alert expired on 20 June 2026 at 22:47 UTC. It is kept here as a record.
It is the 7th strongest of the 44 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 11 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 20 at 5:38PM CDT until June 20 at 5:45PM CDT by NWS Tallahassee FL
An estimated 23,270 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 30, 2026 · score 34 · 3.6 km
- May 7, 2026 · score 63 · 14.5 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 out of 100, at 79 % 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) | 34 / 100 |
| Our confidence | 79% |
| Coordinates | 30.8383, -86.0883 |
| Nearest City | Crestview (47 km) |
| Population Exposed | 23.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-20T22:38:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.ffda5bab796ff55dae9af4df660a0fb7443c20cd.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Holmes, FL; Walton, FL; Washington, FL |
| Headline | Severe Thunderstorm Warning issued June 20 at 5:38PM CDT until June 20 at 5:45PM CDT by NWS Tallahassee FL |
| Expires | 2026-06-20T17:47:00-05:00 |
| SenderName | NWS Tallahassee FL |
| HasExactCoords | true |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
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 34/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.