Severe weather near Port Saint Lucie
This alert expired on 22 June 2026 at 00:00 UTC. It is kept here as a record.
It is the 2nd strongest of the 65 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 13 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued June 21 at 7:07PM EDT until June 21 at 8:00PM EDT by NWS Melbourne FL
An estimated 368,990 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 28, 2026 · score 43 · 3.6 km
- June 20, 2026 · score 43 · 5.0 km
- June 20, 2026 · score 43 · 5.3 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 89 % 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 | 89% |
| Coordinates | 27.3160, -80.2360 |
| Nearest City | Port Saint Lucie (12 km) |
| Population Exposed | 369.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-21T23:07:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.e59dfa6bf76923220c9a6a93a0f4c852a6520489.001.1 |
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 June 21 at 7:07PM EDT until June 21 at 8:00PM EDT by NWS Melbourne FL |
| Expires | 2026-06-21T20:00:00-04:00 |
| SenderName | NWS Melbourne FL |
| HasExactCoords | true |
| Iem TypeSummary | G |
| Iem Magnitude | 41 |
| Iem Unit | MPH |
| Iem City | 1 WNW Treasure Coast Ai |
| Iem County | St. Lucie |
| Iem State | FL |
| Iem Wfo | MLB |
| Iem Remark | The ASOS at the Treasure Coast International Airport measured a wind gust of 41MPH/36KTS from the west. |
| MergedSources | [{"id":"iem_G_27.650_-80.420_1782082140000","source":"iem","severity":"low","severityValue":25,"timestamp":1782082140000,"latitude":27.65,"longitude":-80.42},{"id":"iem_G_27.500_-80.380_1782081780000","source":"iem","severity":"low","severityValue":25,"timestamp":1782081780000,"latitude":27.5,"longitude":-80.38}] |
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 Port Saint Lucie (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.