Right now
The most recent data we hold from NOAA arrived 4 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
14 other detections within 20 km in the last 24 hours, the nearest 4 km from here.
This alert expired on 28 May 2026 at 00:30 UTC. It is kept here as a record.
No stronger detection stands among the 99 recorded within 20 km of this point since 17 March 2026 — 12 others scored the same. 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: Flash Flood Warning issued May 27 at 4:33PM EDT until May 27 at 8:30PM EDT by NWS Charleston WV
An estimated 30,991 people live within 50 km of this point.
Nearby, since 17 March 2026
- May 27, 2026 · score 34 · 11.0 km
- May 26, 2026 · score 34 · 12.2 km
- August 7, 2026 · score 34 · 13.7 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 | 38.9466, -81.4213 |
| Nearest City | Parkersburg (38 km) |
| Population Exposed | 31.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-27T20:33:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.2de53ecee22313ca292045ae5f93c303 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Barbour, WV; Braxton, WV; Calhoun, WV; Doddridge, WV; Gilmer, WV; Harrison, WV; Lewis, WV; Ritchie, WV; Taylor, WV; Upshur, WV; Wirt, WV; Gallia, OH; Lawrence, OH; Meigs, OH; Jackson, WV; Mason, WV |
| Headline | Flash Flood Warning issued May 27 at 4:33PM EDT until May 27 at 8:30PM EDT by NWS Charleston WV |
| Expires | 2026-05-27T20:30:00-04:00 |
| SenderName | NWS Charleston WV |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.2de53ecee22313ca292045ae5f93c303ade42bc4.001.1","noaa_urn:oid:2.49.0.1.840.0.f96023ddfde4bc86a4c2affe7fb704a4d6834499.001.1"] |
| Iem TypeSummary | F |
| Iem City | 7 NW Glenville |
| Iem County | Gilmer |
| Iem State | WV |
| Iem Wfo | RLX |
| Iem Remark | Flooding observed at the intersection of Newberne Road and Jessie Run Road. |
| MergedSources | [{"id":"iem_F_39.030_-80.780_1779892440000","source":"iem","severity":"low","severityValue":25,"timestamp":1779892440000,"latitude":39.03,"longitude":-80.78},{"id":"iem_F_39.010_-80.930_1779892500000","source":"iem","severity":"low","severityValue":25,"timestamp":1779892500000,"latitude":39.01,"longitude":-80.93}] |
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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