Right now
The most recent data we hold from NOAA arrived 48 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 23 June 2026 at 01:00 UTC. It is kept here as a record.
No stronger detection stands among the 83 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. 15 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued June 22 at 7:20PM EDT until June 22 at 9:00PM EDT by NWS Pittsburgh PA
Urban PEI: 30,708 within a heuristic 50 km radius; not unique people.
Nearby, since 17 March 2026
- July 18, 2026 · score 34 · 9.6 km
- June 11, 2026 · score 28 · 14.5 km
- August 11, 2026 · score 34 · 19.6 km
How we know
13 recorded sources include NOAA; independence is not established by this count.
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 | 0.89/1 |
| Coordinates | 39.7895, -79.5033 |
| Nearest City | Morgantown (43 km) |
| Urban exposure index (PEI) | 30.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-22T23:20:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.b72974287f59b529ad77c027d50757aaf5569ce8.001.1 |
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: 2026-06-22T23:20:00.000Z.
First archived: 2026-06-23T00:35:42.727Z. 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 | Fayette, PA |
| Headline | Flash Flood Warning issued June 22 at 7:20PM EDT until June 22 at 9:00PM EDT by NWS Pittsburgh PA |
| Expires | 2026-06-22T21:00:00-04:00 |
| SenderName | NWS Pittsburgh PA |
| HasExactCoords | true |
| Iem TypeSummary | E |
| Iem City | 8 ESE Fairchance |
| Iem County | Fayette |
| Iem State | PA |
| Iem Wfo | PBZ |
| Iem Remark | Report of Wharton Furnace Road being washed out with flooding around region. Timing estimated based on radar. |
| MergedSources | [{"id":"iem_D_39.840_-79.330_1782165300000","source":"iem","severity":"low","severityValue":25,"timestamp":1782165300000,"latitude":39.84,"longitude":-79.33},{"id":"iem_D_39.510_-80.260_1782168300000","source":"iem","severity":"low","severityValue":25,"timestamp":1782168300000,"latitude":39.51,"longitude":-80.26},{"id":"iem_D_40.070_-79.840_1782161940000","source":"iem","severity":"low","severityValue":25,"timestamp":1782161940000,"latitude":40.07,"longitude":-79.84},{"id":"iem_D_40.030_-79.660_1782162900000","source":"iem","severity":"low","severityValue":25,"timestamp":1782162900000,"latitude":40.03,"longitude":-79.66},{"id":"iem_D_39.470_-80.060_1782166740000","source":"iem","severity":"low","severityValue":25,"timestamp":1782166740000,"latitude":39.47,"longitude":-80.06},{"id":"iem_T_39.490_-80.110_1782166020000","source":"iem","severity":"low","severityValue":25,"timestamp":1782166020000,"latitude":39.49,"longitude":-80.11},{"id":"iem_D_40.040_-79.760_1782162420000","source":"iem","severity":"low","severityValue":25,"timestamp":1782162420000,"latitude":40.04,"longitude":-79.76},{"id":"iem_D_39.480_-80.110_1782166500000","source":"iem","severity":"low","severityValue":25,"timestamp":1782166500000,"latitude":39.48,"longitude":-80.11},{"id":"iem_D_40.040_-79.000_1782166140000","source":"iem","severity":"low","severityValue":25,"timestamp":1782166140000,"latitude":40.04,"longitude":-79},{"id":"iem_D_40.100_-79.820_1782162000000","source":"iem","severity":"low","severityValue":25,"timestamp":1782162000000,"latitude":40.1,"longitude":-79.82},{"id":"iem_D_40.070_-79.630_1782163200000","source":"iem","severity":"low","severityValue":25,"timestamp":1782163200000,"latitude":40.07,"longitude":-79.63},{"id":"iem_E_39.770_-79.630_1782171000000","source":"iem","severity":"low","severityValue":25,"timestamp":1782171000000,"latitude":39.77,"longitude":-79.63}] |
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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