Right now
The most recent data we hold from NOAA arrived 9 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 6 June 2026 at 23:15 UTC. It is kept here as a record.
It is the 20th strongest of the 86 detections recorded within 20 km of this point since 12 March 2026. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued June 6 at 6:31PM EDT until June 6 at 7:15PM EDT by NWS Cleveland OH
An estimated 58,336 people live within 50 km of this point.
Nearby, since 12 March 2026
- July 28, 2026 · score 39 · 6.5 km
- August 10, 2026 · score 39 · 8.5 km
- August 2, 2026 · score 39 · 9.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 out of 100, at 79 % 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) | 39 / 100 |
| Our confidence | 79% |
| Coordinates | 41.5080, -82.8320 |
| Nearest City | Sandusky (12 km) |
| Population Exposed | 58.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-06T22:31:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.463cee146e2656b3019046527248e473950f2183.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Reno Beach to The Islands OH; The Islands to Vermilion OH; The Islands to Vermilion OH beyond 5 nm off shoreline to US-Canadian border |
| Headline | Special Marine Warning issued June 6 at 6:31PM EDT until June 6 at 7:15PM EDT by NWS Cleveland OH |
| Expires | 2026-06-06T19:15:00-04:00 |
| 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 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.
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