This alert expired on 10 August 2026 at 18:36 UTC. It is kept here as a record.
It is the 5th strongest of the 52 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 10 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued August 10 at 2:26PM EDT until August 10 at 2:30PM EDT by NWS Pittsburgh PA
An estimated 84,492 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 4, 2026 · score 39 · 5.1 km
- August 10, 2026 · score 39 · 12.7 km
- June 25, 2026 · score 67 · 17.7 km
How we know
Confirmed by 10 independent sources, including NOAA.
Our own score for this event is 39 out of 100, at 91 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 39 / 100 |
| Our confidence | 91% |
| Coordinates | 40.2175, -80.8898 |
| Nearest City | Wheeling (23 km) |
| Population Exposed | 84.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-10T18:26:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.701eb46fb0ea945d88bb7e46d128d902 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Harrison, OH; Jefferson, OH; Delaware, OH; Franklin, OH; Allegheny, PA; Washington, PA; Westmoreland, PA and 1 more areas |
| Headline | Flash Flood Warning issued August 10 at 2:26PM EDT until August 10 at 2:30PM EDT by NWS Pittsburgh PA |
| Expires | 2026-08-10T14:36:00-04:00 |
| SenderName | NWS Pittsburgh PA |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.701eb46fb0ea945d88bb7e46d128d902eb9432c4.001.1","noaa_urn:oid:2.49.0.1.840.0.6aed7f1a581c54b3240e787a3139c4ee8cdff28f.001.1","noaa_urn:oid:2.49.0.1.840.0.48bd4dfacc00b9beb2b5396f892e3c3383cc3884.001.1","noaa_urn:oid:2.49.0.1.840.0.8fa3687fb208bf29d974b9f9be96e5f3d5542138.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 41 |
| Iem Unit | MPH |
| Iem City | 3 WSW Carnot-Moon |
| Iem County | Allegheny |
| Iem State | PA |
| Iem Wfo | PBZ |
| Iem Remark | ASOS station KPIT Pittsburgh Intl Airport. |
| MergedSources | [{"id":"iem_D_40.230_-80.650_1786376520000","source":"iem","severity":"low","severityValue":25,"timestamp":1786376520000,"latitude":40.23,"longitude":-80.65},{"id":"iem_D_40.490_-81.450_1786371720000","source":"iem","severity":"low","severityValue":25,"timestamp":1786371720000,"latitude":40.49,"longitude":-81.45},{"id":"iem_R_40.530_-80.590_1786382340000","source":"iem","severity":"low","severityValue":25,"timestamp":1786382340000,"latitude":40.53,"longitude":-80.59},{"id":"iem_D_40.650_-81.450_1786370520000","source":"iem","severity":"low","severityValue":25,"timestamp":1786370520000,"latitude":40.65,"longitude":-81.45},{"id":"iem_D_40.530_-81.480_1786371240000","source":"iem","severity":"low","severityValue":25,"timestamp":1786371240000,"latitude":40.53,"longitude":-81.48},{"id":"iem_D_40.740_-80.890_1786372200000","source":"iem","severity":"low","severityValue":25,"timestamp":1786372200000,"latitude":40.74,"longitude":-80.89},{"id":"iem_G_40.170_-80.650_1786376460000","source":"iem","severity":"low","severityValue":25,"timestamp":1786376460000,"latitude":40.17,"longitude":-80.65},{"id":"iem_D_40.280_-80.610_1786376580000","source":"iem","severity":"low","severityValue":25,"timestamp":1786376580000,"latitude":40.28,"longitude":-80.61},{"id":"iem_G_40.500_-80.270_1786378620000","source":"iem","severity":"low","severityValue":25,"timestamp":1786378620000,"latitude":40.5,"longitude":-80.27}] |
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 10 February 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.
Want to know when something happens near Wheeling?
Calamity.live data shows a weather event with CalamityScore 39/100, near Wheeling (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 187 scientific monitoring sources.