Right now
The most recent data we hold from NOAA arrived 3 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
20 other detections within 20 km in the last 24 hours, the nearest 4 km from here.
This alert expired on 25 May 2026 at 03:00 UTC. It is kept here as a record.
No stronger detection stands among the 148 recorded within 20 km of this point since 16 March 2026 — 13 others scored the same. The last comparable one was on 1 April 2026.
What the source measured
NOAA reported: Flash Flood Warning issued May 24 at 8:48PM EDT until May 24 at 11:00PM EDT by NWS Pittsburgh PA
An estimated 30,991 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 12, 2026 · score 34 · 11.8 km
- August 9, 2026 · score 34 · 13.1 km
- June 28, 2026 · score 34 · 18.3 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 34 out of 100, at 89 % 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) | 34 / 100 |
| Our confidence | 89% |
| Coordinates | 39.2312, -81.2854 |
| Nearest City | Parkersburg (24 km) |
| Population Exposed | 31.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-25T00:48:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.ff9bbb7195b85ba363766b346c989b1d |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Harrison, OH; Jefferson, OH; Brooke, WV; Hancock, WV; Columbiana, OH; Armstrong, PA; Beaver, PA; Butler, PA; Clarion, PA; Lawrence, PA; Mercer, PA; Venango, PA; Braxton, WV; Calhoun, WV; Clay, WV; Gilmer, WV and 5 more areas |
| Headline | Flash Flood Warning issued May 24 at 8:48PM EDT until May 24 at 11:00PM EDT by NWS Pittsburgh PA |
| Expires | 2026-05-24T23:00:00-04:00 |
| SenderName | NWS Pittsburgh PA |
| HasExactCoords | true |
| MergedCount | 8 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.ff9bbb7195b85ba363766b346c989b1daffb0689.001.1","noaa_urn:oid:2.49.0.1.840.0.cbea56b9e47d4d2b8a4706694829fc6d5feea827.001.1","noaa_urn:oid:2.49.0.1.840.0.d48d660ed2320436e2b512370a0c37aa7a00c7e4.001.1","noaa_urn:oid:2.49.0.1.840.0.503c0f7073d4984026510ea881ea7a428ba275ef.001.1","noaa_urn:oid:2.49.0.1.840.0.3312fe1f825a40f41762085dbe7136d8c0cb5742.001.1","noaa_urn:oid:2.49.0.1.840.0.f288a128fdc168e48e855c0cc50ba8c110805cae.001.1","noaa_urn:oid:2.49.0.1.840.0.b746af59214237ef0cf4aeb568c6ae031b75bf48.001.1","noaa_urn:oid:2.49.0.1.840.0.4a53f4905534919fdf611d43c04298c92f0b8ff7.001.1"] |
| Iem TypeSummary | R |
| Iem Magnitude | 0.75 |
| Iem Unit | Inch |
| Iem City | Middleport |
| Iem County | Meigs |
| Iem State | OH |
| Iem Wfo | RLX |
| Iem Remark | Reported by Trained Spotter. |
| MergedSources | [{"id":"iem_R_38.760_-81.760_1779665820000","source":"iem","severity":"low","severityValue":25,"timestamp":1779665820000,"latitude":38.76,"longitude":-81.76},{"id":"iem_R_39.000_-82.050_1779664080000","source":"iem","severity":"low","severityValue":25,"timestamp":1779664080000,"latitude":39,"longitude":-82.05}] |
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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