Right now
The most recent data we hold from NOAA arrived 46 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 1 August 2026 at 22:15 UTC. It is kept here as a record.
No stronger detection stands among the 22 recorded within 20 km of this point since 7 April 2026 — 15 others scored the same. The last comparable one was on 31 July 2026. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued August 1 at 5:16PM EDT until August 1 at 6:15PM EDT by NWS Miami FL
Urban PEI: 3,628,990 within a heuristic 50 km radius; not unique people.
Nearby, since 7 April 2026
- August 1, 2026 · score 52 · 0.0 km
- September 7, 2026 · 3.8 km
- July 6, 2026 · score 52 · 6.3 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 52 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
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) | 52 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 25.6956, -80.0789 |
| Nearest City | Miami Beach (12 km) |
| Urban exposure index (PEI) | 3.6M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-01T21:16:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.7896eedcf667e919c84c507b5697c6cca9fa5b0a.001.1 |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-08-01T21:16:00.000Z.
First archived: 2026-08-01T22:06:58.959Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Biscayne Bay; Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM; Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM excluding the territorial waters of Bahamas |
| Headline | Special Marine Warning issued August 1 at 5:16PM EDT until August 1 at 6:15PM EDT by NWS Miami FL |
| Expires | 2026-08-01T18:15:00-04:00 |
| SenderName | NWS Miami FL |
| HasExactCoords | true |
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.
Review the area, threshold and delivery channel in your account.
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