Flash Flood Warning Issued for Allegheny and Westmoreland Counties, PA
This alert is no longer in effect.
NOAA issued it on August 10, 2026, 13 days ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
NWS Pittsburgh has issued a Flash Flood Warning for southeastern Allegheny County and southwestern Westmoreland County until 3:45 PM EDT due to heavy rain from thunderstorms.
Read this weather record in 30 seconds
- Record type
- Flash Flood Warning
- Affected area
- Southwestern Pennsylvania
- Issued
- August 10, 2026
- Issuing authority
- NWS Pittsburgh PA
Flood notices turn on location and timing. Treat the named area as this record's scope; do not assume nearby counties, parishes, or waterways were included.
Record status: historical. It was issued 13 days ago; use the issuing agency's live warning service for current conditions in Southwestern Pennsylvania.
Alert Details
Flash Flood Warning issued by NWS Pittsburgh PA. Effective from August 10, 2026 at 12:42 PM EDT until August 10, 2026 at 3:45 PM EDT. Alert type code: FFW.
Affected Areas
Southeastern Allegheny County and southwestern Westmoreland County in southwestern Pennsylvania. Specific locations include Greensburg, Jeannette, Irwin, Manor, Youngwood, West Newton, New Stanton, Calumet-Norvelt, North Irwin, Sutersville, Penn, Madison, Arona, Hunker, Adamsburg, Herminie and Grapeville.
What You Should Do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Expected Conditions
Doppler radar indicated thunderstorms producing heavy rain. Between 0.5 and 1 inch of rain has fallen, with additional rainfall amounts of 1 to 1.5 inches possible. Flash flooding is ongoing or expected to begin shortly.
Timeline
Alert effective August 10, 2026 at 12:42 PM EDT and expires August 10, 2026 at 3:45 PM EDT.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Nationwide notices with similar length or severity timing 8
Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (966 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to August 10, 2026.
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