Right now
The most recent data we hold from NOAA arrived 12 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
6 other detections within 20 km in the last 24 hours, the nearest 11 km from here.
This alert is in force until 10 September 2026, 12:30 UTC.
It is the 20th strongest of the 50 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued September 10 at 2:34AM EDT until September 10 at 8:30AM EDT by NWS Charleston WV
An estimated 25,498 people live within 50 km of this point.
Nearby, since 16 March 2026
- June 25, 2026 · score 58 · 14.3 km
- July 6, 2026 · score 39 · 16.8 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 28 out of 100, at 92 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 28 / 100 |
| Our confidence | 92% |
| Coordinates | 40.0298, -81.6465 |
| Nearest City | Zanesville (33 km) |
| Population Exposed | 25.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-10T06:34:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.39e927488a06e315c767ebcab5adb61e89624a51.001.1 |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Expected |
| Certainty | Likely |
| AreaDesc | Morgan, OH; Morgan, OH; Perry, OH; Carroll, OH; Columbiana, OH; Jefferson, OH; Hancock, WV |
| Headline | Flood Warning issued September 10 at 2:34AM EDT until September 10 at 8:30AM EDT by NWS Charleston WV |
| Expires | 2026-09-10T08:30:00-04:00 |
| SenderName | NWS Charleston WV |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.39e927488a06e315c767ebcab5adb61e89624a51.001.1","noaa_urn:oid:2.49.0.1.840.0.cb76287ab2efc9b2edc0ce94da989c1af15eadbb.001.1","noaa_urn:oid:2.49.0.1.840.0.c48286120a9f29ac84ac7cfd6e0fdbf99c9a5ebb.001.1"] |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | Byesville |
| Spc County | Guernsey |
| Spc State | OH |
| Spc Comments | Report of power line down on car along Spruce Avenue. Time estimated based on radar. (PBZ) |
| Iem TypeSummary | F |
| Iem City | 7 ESE Lower Salem |
| Iem County | Washington |
| Iem State | OH |
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 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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