This alert expired on 11 May 2026 at 08:00 UTC. It is kept here as a record.
It is the 7th strongest of the 39 detections recorded within 20 km of this point since 17 March 2026. Another comparable one was recorded here earlier the same day. 9 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued May 10 at 7:22PM EDT until May 11 at 6:16AM EDT by NWS Cleveland OH
An estimated 454,427 people live within 50 km of this point.
Nearby, since 17 March 2026
- May 7, 2026 · score 43 · 0.0 km
- July 5, 2026 · score 43 · 7.7 km
- June 14, 2026 · score 43 · 12.8 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 81 % 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 | 81% |
| Coordinates | 41.2800, -80.9529 |
| Nearest City | Warren (12 km) |
| Population Exposed | 454.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-10T23:22:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.3456b74e8895478b0d042970ca5d954a95778f27.001.1 |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Trumbull, OH |
| Headline | Flood Warning issued May 10 at 7:22PM EDT until May 11 at 6:16AM EDT by NWS Cleveland OH |
| Expires | 2026-05-11T04:00:00-04:00 |
| SenderName | NWS Cleveland OH |
| HasExactCoords | true |
Safety Information
During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.
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.
Want to know when something happens near Warren?
Calamity.live data shows a weather event with CalamityScore 43/100, near Warren (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.