Flood Warning — Allegheny County, Pennsylvania
Flooding is occurring or imminent along rivers, streams, or low-lying areas.
Current Status
🌊 Active: Flood Warning
Flood Warning issued August 7 at 5:58PM EDT until August 7 at 9:00PM EDT by NWS Pittsburgh PA
* WHAT...Urban areas and small streams flooding caused by excessive rainfall is ongoing. * WHERE...Southeastern Allegheny County in southwestern Pennsylvania... Northwestern Westmoreland County in southwestern Pennsylvania... * WHEN...Until 900 PM EDT. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. Streams continue to rise due to excess runoff from earlier rainfall. Low-water crossings are inundated with water and may not be passable. * ADDITIONAL DETAILS... - At 555 PM EDT, local law enforcement reported roadway flooding and rapid rises in creeks and streams bringing them out of their banks. This is resulting in inundation of structures. Flooding is ongoing or expected to begin shortly. Between 1 and 2 inches of rain have fallen. - Some locations that will experience flooding include... Monroeville, Greensburg, McKeesport, Jeannette, Plum, West Mifflin, Murrysville, North Versailles, White Oak, Clairton, Duq
Effective August 7, 2026 at 5:58 PM ET · Expires August 7, 2026 at 9:00 PM ET
Event Details
Event Type
Flood Warning
Severity
severe
Issued By
NWS Pittsburgh PA
Expires
August 7, 2026 at 9:00 PM ET
Last Checked
2 minutes ago
What To Do
📋 Official NWS Guidance
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads.
Also In Effect For
This same Flood Warning also covers:
Other Active Alerts in Pennsylvania
Flash Flood Warning
Flash Flood Warning
Severe Thunderstorm Warning
Flood Warning
Severe Thunderstorm Warning
Severe Thunderstorm Warning
Get Flood Warning Alerts for Allegheny County
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Frequently Asked Questions
What does a Flood Warning mean for Allegheny County, Pennsylvania?
Flooding is occurring or imminent along rivers, streams, or low-lying areas.
Is this Flood Warning currently active?
Yes — this alert is active as of our last check (2 minutes ago). It's set to expire August 7, 2026 at 9:00 PM ET.
How do I get notified about Flood Warning alerts for Allegheny County?
Download StormCast free on Google Play and set Allegheny County, Pennsylvania as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.
What other areas does this alert cover?
This same Flood Warning is also in effect for Westmoreland County.