This alert expired on 27 August 2026 at 19:45 UTC. It is kept here as a record.
No stronger detection stands among the 47 recorded within 20 km of this point since 12 March 2026 — 33 others scored the same. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Special Marine Warning issued August 27 at 2:41PM EDT until August 27 at 3:45PM EDT by NWS Melbourne FL
An estimated 330,290 people live within 50 km of this point.
Nearby, since 12 March 2026
- July 15, 2026 · score 43 · 3.2 km
- June 19, 2026 · score 43 · 3.6 km
- July 17, 2026 · score 43 · 5.7 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 43 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) | 43 / 100 |
| Our confidence | 86% |
| Coordinates | 27.4564, -80.2018 |
| Nearest City | Fort Pierce (13 km) |
| Population Exposed | 330.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-27T18:41:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.ac6e14d12c172d77d502ac66565cdd27cc70581c.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 August 27 at 2:41PM EDT until August 27 at 3:45PM EDT by NWS Melbourne FL |
| Expires | 2026-08-27T15:45:00-04:00 |
| SenderName | NWS Melbourne FL |
| HasExactCoords | true |
| Iem TypeSummary | M |
| Iem Magnitude | 47 |
| Iem Unit | MPH |
| Iem City | 2 SSW Roseland |
| Iem County | Indian River |
| Iem State | FL |
| Iem Wfo | MLB |
| Iem Remark | Sebastian Municipal Airport measured a peak wind gust of 47MPH/41KT from the east at 2:15 PM. |
| MergedSources | [{"id":"iem_M_27.820_-80.500_1787854500000","source":"iem","severity":"low","severityValue":25,"timestamp":1787854500000,"latitude":27.82,"longitude":-80.5}] |
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 Fort Pierce (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.