Right now
The most recent data we hold from NOAA arrived 1 minute 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 2 August 2026 at 21:45 UTC. It is kept here as a record.
It is the 29th strongest of the 129 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued August 2 at 2:48PM EDT until August 2 at 5:45PM EDT by NWS Pittsburgh PA
Urban PEI: 712,840 within a heuristic 50 km radius; not unique people.
Nearby, since 15 March 2026
- September 10, 2026 · score 41 · 5.9 km
- August 2, 2026 · score 72 · 7.0 km
- September 9, 2026 · score 72 · 9.5 km
How we know
6 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 41 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) | 41 / 100 |
| Legacy data-support index | 0.90/1 |
| Coordinates | 40.5979, -80.2483 |
| Nearest City | Cranberry Township (15 km) |
| Urban exposure index (PEI) | 712.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-02T18:48:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.c5b42edf7e7dca71ee07c402daeb14ef |
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: 2026-08-02T18:48:00.000Z.
First archived: 2026-08-02T19:38:17.329Z. 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 | Allegheny, PA; Butler, PA; Jefferson, OH; Beaver, PA; Brooke, WV; Hancock, WV |
| Headline | Flash Flood Warning issued August 2 at 2:48PM EDT until August 2 at 5:45PM EDT by NWS Pittsburgh PA |
| Expires | 2026-08-02T17:45:00-04:00 |
| SenderName | NWS Pittsburgh PA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.c5b42edf7e7dca71ee07c402daeb14ef2e857a63.001.1","noaa_urn:oid:2.49.0.1.840.0.465b7ad2bc9e7a6855b6b6782165508d4c591b18.001.1"] |
| Iem TypeSummary | F |
| Iem City | 1 NE Bridgewater |
| Iem County | Beaver |
| Iem State | PA |
| Iem Wfo | PBZ |
| Iem Remark | 700 Block of Virginia Avenue closed in Rochester due to flooding. |
| Google News RssFeed | weather |
| Google News SourceName | Pittsburgh Post-Gazette |
| MergedSources | [{"id":"iem_F_40.510_-80.620_1785692400000","source":"iem","severity":"low","severityValue":25,"timestamp":1785692400000,"latitude":40.51,"longitude":-80.62},{"id":"iem_F_40.590_-80.230_1785694440000","source":"iem","severity":"low","severityValue":25,"timestamp":1785694440000,"latitude":40.59,"longitude":-80.23},{"id":"iem_D_40.490_-80.420_1785691680000","source":"iem","severity":"low","severityValue":25,"timestamp":1785691680000,"latitude":40.49,"longitude":-80.42},{"id":"iem_F_40.720_-80.290_1785695340000","source":"iem","severity":"low","severityValue":25,"timestamp":1785695340000,"latitude":40.72,"longitude":-80.29},{"id":"gnews_weather_496026_217","source":"google_news","severity":"medium","severityValue":40,"timestamp":1785697101000,"latitude":40.44,"longitude":-80}] |
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.
Review the area, threshold and delivery channel in your account.
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