This alert expired on 16 March 2026 at 08:45 UTC. It is kept here as a record.
No stronger detection stands among the 50 recorded within 20 km of this point since 16 March 2026 — 10 others scored the same.
What the source measured
NOAA reported: Special Marine Warning issued March 16 at 3:21AM EDT until March 16 at 4:45AM EDT by NWS Cleveland OH
An estimated 1,274,688 people live within 50 km of this point.
Nearby, since 16 March 2026
- June 11, 2026 · score 46 · 0.2 km
- May 19, 2026 · score 52 · 3.7 km
- June 10, 2026 · score 46 · 3.8 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, at 76 % 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) | 52 / 100 |
| Our confidence | 76% |
| Coordinates | 41.5350, -82.1475 |
| Nearest City | Lorain (10 km) |
| Population Exposed | 1.3M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-16T07:21:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.ae4cc1d425fc21f1aa84909bd91aa05e520aeabd.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | The Islands to Vermilion OH; Vermilion to Avon Point OH; Avon Point to Willowick OH; The Islands to Vermilion OH beyond 5 nm off shoreline to US-Canadian border; Vermilion to Avon Point OH beyond 5 nm off shoreline to US-Canadian border; Avon Point to Willowick OH beyond 5 nm off shoreline to US-Canadian border |
| Headline | Special Marine Warning issued March 16 at 3:21AM EDT until March 16 at 4:45AM EDT by NWS Cleveland OH |
| Expires | 2026-03-16T04:45:00-04:00 |
| SenderName | NWS Cleveland OH |
| 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 52/100, near Lorain (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.