This alert expired on 15 March 2026 at 23:15 UTC. It is kept here as a record.
It is the 23rd strongest of the 41 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued March 15 at 6:39PM EDT until March 15 at 7:15PM EDT by NWS Jacksonville FL
An estimated 82,893 people live within 50 km of this point.
Nearby, since 15 March 2026
- May 23, 2026 · score 39 · 3.9 km
- May 8, 2026 · score 43 · 12.0 km
- July 26, 2026 · score 39 · 13.0 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 39 out of 100, at 83 % 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) | 39 / 100 |
| Our confidence | 83% |
| Coordinates | 29.3926, -81.6438 |
| Nearest City | Palm Coast (47 km) |
| Population Exposed | 82.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-15T22:39:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.1cc0df76e9d6708ea4fee81f7f17addb |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Marion, FL; Putnam, FL; Volusia, FL |
| Headline | Severe Thunderstorm Warning issued March 15 at 6:39PM EDT until March 15 at 7:15PM EDT by NWS Jacksonville FL |
| Expires | 2026-03-15T19:15:00-04:00 |
| SenderName | NWS Jacksonville FL |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.1cc0df76e9d6708ea4fee81f7f17addbceeb1fab.001.1","noaa_urn:oid:2.49.0.1.840.0.7b85ddbe18819f99bd2182d3a18e10c531046672.002.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 55 |
| Iem Unit | MPH |
| Iem City | 1 NW Orange City |
| Iem County | Volusia |
| Iem State | FL |
| Iem Wfo | MLB |
| Iem Remark | Public reported wind gusts to around 55mph in Orange City. |
| MergedSources | [{"id":"iem_G_28.940_-81.300_1773611580000","source":"iem","severity":"low","severityValue":25,"timestamp":1773611580000,"latitude":28.94,"longitude":-81.3}] |
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 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 in this area?
Calamity.live data shows a weather event with CalamityScore 39/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.