This alert expired on 18 July 2026 at 20:45 UTC. It is kept here as a record.
It is the 6th strongest of the 71 detections recorded within 20 km of this point since 12 March 2026. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued July 18 at 3:21PM CDT until July 18 at 3:45PM CDT by NWS Mobile AL
An estimated 283,882 people live within 50 km of this point.
Nearby, since 12 March 2026
- July 30, 2026 · score 43 · 4.3 km
- June 24, 2026 · score 43 · 4.9 km
- July 18, 2026 · score 43 · 5.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 80 % 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 | 80% |
| Coordinates | 30.6311, -87.9711 |
| Nearest City | Daphne (8 km) |
| Population Exposed | 283.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-18T20:21:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.7aaf0ce8ecca050dc76a1dd5b77f0860666d45d3.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | North Mobile Bay |
| Headline | Special Marine Warning issued July 18 at 3:21PM CDT until July 18 at 3:45PM CDT by NWS Mobile AL |
| Expires | 2026-07-18T15:45:00-05:00 |
| SenderName | NWS Mobile AL |
| 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 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 Daphne (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.