This alert expired on 19 May 2026 at 02:45 UTC. It is kept here as a record.
No stronger detection stands among the 45 recorded within 20 km of this point since 16 March 2026 — 7 others scored the same. The last comparable one was on 16 May 2026. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued May 18 at 9:59PM EDT until May 18 at 10:45PM EDT by NWS Melbourne FL
An estimated 595,573 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 12, 2026 · score 43 · 4.1 km
- June 1, 2026 · score 43 · 5.2 km
- July 27, 2026 · score 43 · 5.5 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 48 out of 100, at 86 % 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) | 48 / 100 |
| Our confidence | 86% |
| Coordinates | 27.1462, -80.1869 |
| Nearest City | Palm City (9 km) |
| Population Exposed | 595.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-19T01:59:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.d2abf79dbd3f09daed211ef888fef816ff6298bd.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Sebastian Inlet to Jupiter Inlet 0-20 nm |
| Headline | Special Marine Warning issued May 18 at 9:59PM EDT until May 18 at 10:45PM EDT by NWS Melbourne FL |
| Expires | 2026-05-18T22:45:00-04:00 |
| SenderName | NWS Melbourne FL |
| HasExactCoords | true |
| Iem TypeSummary | G |
| Iem Magnitude | 41 |
| Iem Unit | MPH |
| Iem City | Saint Lucie Nuclear Pow |
| Iem County | St. Lucie |
| Iem State | FL |
| Iem Wfo | MLB |
| Iem Remark | The WeatherFlow station at St. Lucie Plant measured a peak wind gust of 41MPH/36KT from the east at 6:17 PM. |
| MergedSources | [{"id":"iem_G_27.350_-80.240_1779142620000","source":"iem","severity":"low","severityValue":25,"timestamp":1779142620000,"latitude":27.35,"longitude":-80.24}] |
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 48/100, near Palm City (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.