This alert expired on 16 March 2026 at 20:30 UTC. It is kept here as a record.
No stronger detection stands among the 103 recorded within 20 km of this point since 15 March 2026 — 73 others scored the same. Another comparable one was recorded here earlier the same day. 46 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued March 16 at 4:15PM EDT until March 16 at 4:30PM EDT by NWS Jacksonville FL
An estimated 286,571 people live within 50 km of this point.
Nearby, since 15 March 2026
- July 30, 2026 · score 43 · 3.8 km
- March 15, 2026 · score 43 · 6.4 km
- May 9, 2026 · score 43 · 6.4 km
How we know
Confirmed by 11 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 88 % 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) | 43 / 100 |
| Our confidence | 88% |
| Coordinates | 29.4420, -81.2040 |
| Nearest City | Palm Coast (15 km) |
| Population Exposed | 286.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-16T20:15:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.af5ac7343aab8639b26c48ab97064c1e6c079733.002.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Flagler, FL |
| Headline | Severe Thunderstorm Warning issued March 16 at 4:15PM EDT until March 16 at 4:30PM EDT by NWS Jacksonville FL |
| Expires | 2026-03-16T16:30:00-04:00 |
| SenderName | NWS Jacksonville FL |
| HasExactCoords | true |
| Iem TypeSummary | G |
| Iem Magnitude | 48 |
| Iem Unit | MPH |
| Iem City | 1 ENE Hastings |
| Iem County | St. Johns |
| Iem State | FL |
| Iem Wfo | JAX |
| Iem Remark | Mesonet station 1429W Fswn St. Johns County Fire Station measured 49 mph gust. |
| MergedSources | [{"id":"iem_G_29.570_-81.170_1773687000000","source":"iem","severity":"low","severityValue":25,"timestamp":1773687000000,"latitude":29.57,"longitude":-81.17},{"id":"iem_G_29.190_-81.070_1773685800000","source":"iem","severity":"low","severityValue":25,"timestamp":1773685800000,"latitude":29.19,"longitude":-81.07},{"id":"iem_G_29.180_-81.070_1773687180000","source":"iem","severity":"low","severityValue":25,"timestamp":1773687180000,"latitude":29.18,"longitude":-81.07},{"id":"iem_G_29.050_-80.900_1773687240000","source":"iem","severity":"low","severityValue":25,"timestamp":1773687240000,"latitude":29.05,"longitude":-80.9},{"id":"iem_H_29.460_-81.210_1773687840000","source":"iem","severity":"low","severityValue":25,"timestamp":1773687840000,"latitude":29.46,"longitude":-81.21},{"id":"iem_G_29.180_-81.070_1773687600000","source":"iem","severity":"low","severityValue":25,"timestamp":1773687600000,"latitude":29.18,"longitude":-81.07},{"id":"iem_G_29.570_-81.190_1773687000000","source":"iem","severity":"low","severityValue":25,"timestamp":1773687000000,"latitude":29.57,"longitude":-81.19},{"id":"iem_G_29.470_-81.200_1773687000000","source":"iem","severity":"low","severityValue":25,"timestamp":1773687000000,"latitude":29.47,"longitude":-81.2},{"id":"iem_G_28.770_-81.220_1773685140000","source":"iem","severity":"low","severityValue":25,"timestamp":1773685140000,"latitude":28.77,"longitude":-81.22},{"id":"iem_G_29.720_-81.490_1773689400000","source":"iem","severity":"low","severityValue":25,"timestamp":1773689400000,"latitude":29.72,"longitude":-81.49}] |
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 43/100, near Palm Coast (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.