Right now
The most recent data we hold from NOAA arrived 20 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 22 July 2026 at 06:15 UTC. It is kept here as a record.
It is the 7th strongest of the 63 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued July 21 at 8:17PM EDT until July 22 at 2:15AM EDT by NWS Pittsburgh PA
Urban PEI: 30,991 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- May 19, 2026 · score 22 · 5.4 km
- August 7, 2026 · score 22 · 12.0 km
- May 19, 2026 · score 22 · 12.4 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 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) | 34 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 39.6895, -81.3943 |
| Nearest City | Parkersburg (49 km) |
| Urban exposure index (PEI) | 31.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-22T00:17:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.11d9b82479371faf0e526b3e1a1f3995 |
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: 2026-07-22T00:17:00.000Z.
First archived: 2026-07-22T01:29:53.419Z. 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 | Flood Warning |
| Urgency | Expected |
| Certainty | Likely |
| AreaDesc | Belmont, OH; Guernsey, OH; Monroe, OH; Noble, OH; Marshall, WV; Wetzel, WV; Washington, OH; Doddridge, WV; Pleasants, WV; Ritchie, WV; Tyler, WV; Morgan, OH; Perry, OH; Washington, OH |
| Headline | Flood Warning issued July 21 at 8:17PM EDT until July 22 at 2:15AM EDT by NWS Pittsburgh PA |
| Expires | 2026-07-22T02:15:00-04:00 |
| SenderName | NWS Pittsburgh PA |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.11d9b82479371faf0e526b3e1a1f399589a95b3f.001.1","noaa_urn:oid:2.49.0.1.840.0.d239a95c6570d7fcd369e390f6c8ee71ff5d2764.001.1","noaa_urn:oid:2.49.0.1.840.0.3adc294831a98f62759959341cbb79f139a80eab.001.1"] |
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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