This alert expired on 13 March 2026 at 17:15 UTC. It is kept here as a record.
It is the 4th strongest of the 8 detections recorded within 20 km of this point since 13 March 2026.
What the source measured
NOAA reported: Special Marine Warning issued March 13 at 12:36PM EDT until March 13 at 1:15PM EDT by NWS Miami FL
An estimated 408,595 people live within 50 km of this point.
Nearby, since 13 March 2026
- August 29, 2026 · score 43 · 3.3 km
- July 31, 2026 · score 43 · 12.3 km
- August 30, 2026 · score 48 · 15.9 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 84 % 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 | 84% |
| Coordinates | 26.6280, -79.6580 |
| Nearest City | West Palm Beach (40 km) |
| Population Exposed | 408.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-13T16:36:00.000Z |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM; Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM |
| Headline | Special Marine Warning issued March 13 at 12:36PM EDT until March 13 at 1:15PM EDT by NWS Miami FL |
| Expires | 2026-03-13T13:15:00-04:00 |
| SenderName | NWS Miami FL |
| HasExactCoords | true |
| Iem TypeSummary | E |
| Iem City | 2 E Riviera Beach |
| Iem County | Palm Beach |
| Iem State | FL |
| Iem Wfo | MFL |
| Iem Remark | Social media post showed several flooded roads in Riviera Beach due to heavy rainfall. This includes US 1 and Congress Ave. |
| MergedSources | [{"id":"iem_E_26.780_-80.050_1773411300000","source":"iem","severity":"low","severityValue":25,"timestamp":1773411300000,"latitude":26.78,"longitude":-80.05}] |
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 West Palm Beach (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 194 scientific monitoring sources.