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.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 28 May 2026 at 00:00 UTC. It is kept here as a record.
It is the 11th strongest of the 69 detections recorded within 20 km of this point since 16 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: Flash Flood Warning issued May 27 at 6:44PM EDT until May 27 at 8:00PM EDT by NWS Pittsburgh PA
Nearby, since 16 March 2026
- August 8, 2026 · score 22 · 6.5 km
- September 2, 2026 · score 16 · 12.4 km
- June 27, 2026 · score 34 · 18.7 km
How we know
16 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 22 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
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) | 22 / 100 |
| Legacy data-support index | 0.70/1 |
| Coordinates | 38.9343, -81.0147 |
| Nearest City | Parkersburg (60 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-05-27T22:44:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.62fc1d2e6c2308c8a7b0e06648aa9220 |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-05-27T22:44:00.000Z.
First archived: 2026-05-27T23:12:31.337Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Tucker, WV; Calhoun, WV; Jackson, WV; Mason, WV; Putnam, WV; Roane, WV; Wirt, WV; Barbour, WV; Braxton, WV; Calhoun, WV; Doddridge, WV; Gilmer, WV; Harrison, WV; Lewis, WV; Ritchie, WV; Taylor, WV; Upshur, WV; Wirt, WV and 1 more areas |
| Headline | Flash Flood Warning issued May 27 at 6:44PM EDT until May 27 at 8:00PM EDT by NWS Pittsburgh PA |
| Expires | 2026-05-27T20:00:00-04:00 |
| SenderName | NWS Pittsburgh PA |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.62fc1d2e6c2308c8a7b0e06648aa9220d1dd55d8.001.1","noaa_urn:oid:2.49.0.1.840.0.c2857d4ec84f4aa9e5282ec90a04e53ccb0bfa80.001.1","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 | D |
| Iem City | 9 N Salem |
| Iem County | Harrison |
| Iem State | WV |
| Iem Wfo | RLX |
| Iem Remark | Tree down blocking Sycamore Fork Rd near the Doddridge County line. Time estimated by radar. |
| MergedSources | [{"id":"iem_D_39.520_-80.610_1779910020000","source":"iem","severity":"low","severityValue":25,"timestamp":1779910020000,"latitude":39.52,"longitude":-80.61},{"id":"iem_F_38.970_-80.590_1779922740000","source":"iem","severity":"low","severityValue":25,"timestamp":1779922740000,"latitude":38.97,"longitude":-80.59},{"id":"iem_F_39.050_-80.510_1779914700000","source":"iem","severity":"low","severityValue":25,"timestamp":1779914700000,"latitude":39.05,"longitude":-80.51},{"id":"iem_F_39.000_-80.580_1779922800000","source":"iem","severity":"low","severityValue":25,"timestamp":1779922800000,"latitude":39,"longitude":-80.58},{"id":"iem_R_39.070_-80.440_1779915600000","source":"iem","severity":"low","severityValue":25,"timestamp":1779915600000,"latitude":39.07,"longitude":-80.44},{"id":"iem_D_39.500_-80.560_1779910020000","source":"iem","severity":"low","severityValue":25,"timestamp":1779910020000,"latitude":39.5,"longitude":-80.56},{"id":"iem_F_39.270_-80.310_1779915000000","source":"iem","severity":"low","severityValue":25,"timestamp":1779915000000,"latitude":39.27,"longitude":-80.31},{"id":"iem_E_39.040_-80.700_1779910500000","source":"iem","severity":"low","severityValue":25,"timestamp":1779910500000,"latitude":39.04,"longitude":-80.7},{"id":"iem_R_39.050_-80.470_1779912900000","source":"iem","severity":"low","severityValue":25,"timestamp":1779912900000,"latitude":39.05,"longitude":-80.47},{"id":"iem_D_39.330_-80.400_1779911160000","source":"iem","severity":"low","severityValue":25,"timestamp":1779911160000,"latitude":39.33,"longitude":-80.4},{"id":"iem_E_39.180_-80.380_1779913740000","source":"iem","severity":"low","severityValue":25,"timestamp":1779913740000,"latitude":39.18,"longitude":-80.38},{"id":"iem_D_39.530_-80.640_1779909480000","source":"iem","severity":"low","severityValue":25,"timestamp":1779909480000,"latitude":39.53,"longitude":-80.64},{"id":"iem_F_39.180_-80.380_1779912900000","source":"iem","severity":"low","severityValue":25,"timestamp":1779912900000,"latitude":39.18,"longitude":-80.38},{"id":"iem_D_39.530_-80.630_1779910140000","source":"iem","severity":"low","severityValue":25,"timestamp":1779910140000,"latitude":39.53,"longitude":-80.63},{"id":"iem_D_39.410_-80.530_1779910560000","source":"iem","severity":"low","severityValue":25,"timestamp":1779910560000,"latitude":39.41,"longitude":-80.53}] |
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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