Right now
The most recent data we hold from NOAA arrived 15 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 20 June 2026 at 23:00 UTC. It is kept here as a record.
It is the 2nd strongest of the 33 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 15 June 2026. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued June 20 at 6:09PM EDT until June 20 at 7:00PM EDT by NWS Miami FL
An estimated 702,704 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 12, 2026 · score 48 · 5.5 km
- March 16, 2026 · score 48 · 8.7 km
- August 12, 2026 · score 48 · 10.3 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 48 out of 100, at 84 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 48 / 100 |
| Our confidence | 84% |
| Coordinates | 26.8526, -80.0440 |
| Nearest City | Riviera Beach (8 km) |
| Population Exposed | 702.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-20T22:09:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.ed24a6ec3bb1b9cd82c41ad6152d3a84 |
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; Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM; 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; Sebastian Inlet to Jupiter Inlet 0-20 nm; Sebastian Inlet to Jupiter Inlet 20-60 nm |
| Headline | Special Marine Warning issued June 20 at 6:09PM EDT until June 20 at 7:00PM EDT by NWS Miami FL |
| Expires | 2026-06-20T19:00:00-04:00 |
| SenderName | NWS Miami FL |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.ed24a6ec3bb1b9cd82c41ad6152d3a8431d2db83.001.1","noaa_urn:oid:2.49.0.1.840.0.bfaed12f7d3ce8de9134a178cc676fca1c3d1fa3.001.1","noaa_urn:oid:2.49.0.1.840.0.487c5cad8f5362953428ac7486c088967525223c.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 39 |
| Iem Unit | MPH |
| Iem City | 4 WSW Saint Lucie Nucle |
| Iem County | St. Lucie |
| Iem State | FL |
| Iem Wfo | MLB |
| Iem Remark | The mesonet station K4ZZR Port St. Lucie measured a peak wind gust of 39MPH/34KT from the north at 4:24 PM. |
| MergedSources | [{"id":"iem_G_27.270_-80.270_1781987040000","source":"iem","severity":"low","severityValue":25,"timestamp":1781987040000,"latitude":27.27,"longitude":-80.27}] |
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 8 March 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.
Want to know when something happens near Riviera Beach?
Calamity.live data shows a weather event with CalamityScore 48/100, near Riviera Beach (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.