Alert archive / Pennsylvania / Flash Flood Warnings in 2026
Flash Flood Warning 44, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this flash flood warning at Jul 10, 2026, 1:13 PM EDT for 4 counties in Pennsylvania. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 10, 2026, 1:13 PM EDT (17:13 UTC)
- Expired
- Jul 10, 2026, 4:15 PM EDT
- In force
- 3 hr
- Issued by
- NWS Pittsburgh, PA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Butler County, PA, Lawrence County, PA, Mercer County, PA, Venango County, PA
The radar
The Pittsburgh radar (KPBZ), 70 km from the middle of the area, began a volume at 17:12 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 5.2 hours before the alert went out and 83 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 14 J/kg
- Mixed-layer CIN
- -142 J/kg
- Mixed-layer LCL
- 1334 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 57 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Pittsburgh, PA wrote its last area forecast discussion before this flash flood warning went out at Jul 10, 7:11 AM EDT, 6 hours 2 minutes earlier.
Area forecast discussion, Jul 10, 7:11 AM EDT, 6 hours 2 minutes before
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</html>Hazardous weather outlook, Jul 10, 11:43 AM EDT, 1 hour 30 minutes before
Hazardous Weather Outlook National Weather Service Pittsburgh PA 1143 AM EDT Fri Jul 10 2026 OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>022-029- 031-073>078-WVZ001>004-012-021-509>514-111545- Tuscarawas-Carroll-Columbiana-Coshocton-Harrison-Jefferson OH- Muskingum-Guernsey-Belmont-Noble-Monroe-Mercer-Venango-Forest- Lawrence-Butler-Clarion-Jefferson PA-Beaver-Allegheny-Armstrong- Washington-Greene-Westmoreland-Higher Elevations of Westmoreland- Fayette-Higher Elevations of Fayette-Indiana- Higher Elevations of Indiana-Hancock-Brooke-Ohio-Marshall-Wetzel- Marion-Monongalia- Ridges of Eastern Monongalia and Northwestern Preston-Preston- Eastern Preston-Western Tucker-Eastern Tucker- 1143 AM EDT Fri Jul 10 2026 ...FLOOD WATCH IN EFFECT UNTIL 10 PM EDT THIS EVENING... This Hazardous Weather Outlook is for east central Ohio, western Pennsylvania, and northern West Virginia. .DAY ONE...This afternoon and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch for training thunderstorms this afternoon and evening. Rainfall rates could range between 3-5 inches per hour in isolated storms. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Above-average temperatures are expected to return Tuesday under high pressure. Heat indices will likely range from low to mid-90s. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. SKH
In the hours before
Local storm report, Jul 10, 9:56 AM EDT, 3 hours 17 minutes before
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</html>Local storm report, Jul 10, 10:27 AM EDT, 2 hours 46 minutes before
Preliminary Local Storm Report
National Weather Service Pittsburgh PA
1027 AM EDT Fri Jul 10 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1000 PM Flash Flood 3 N Clymer 40.71N 79.01W
07/06/2026 Indiana PA Fire Dept/Rescue
Over 25 flooded basements, Fisher Furniture
store flooded, St Marys Public Library
damaged from flood waters, and intersection
of Leroy Road and SR 403 flooded with all
lanes closed.
&&
MLBThe office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 1:56 AM EDT | Flood Watch | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 9 more | 20 hr |
| Jul 10, 1:10 PM EDT | Flash Flood Warning | PBZ | Armstrong, Butler, Clarion | 3 hr |
| Jul 10, 2:50 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Butler, Lawrence, Mercer | 40 min |
| Jul 10, 2:51 PM EDT | Flash Flood Warning | PBZ | Fayette, Greene, Washington, Westmoreland | 87 min |
| Jul 10, 3:04 PM EDT | Flash Flood Warning | PBZ | Clarion, Forest, Jefferson, Venango | 2 hr |
| Jul 10, 3:10 PM EDT | Flash Flood Warning | PBZ | Armstrong, Beaver, Butler, Indiana, Lawrence, Westmoreland | 3 hr |
| Jul 10, 3:17 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Beaver, Butler, Lawrence | 43 min |
| Jul 10, 3:19 PM EDT | Flash Flood Warning | PBZ | Allegheny | 3 hr |
| Jul 10, 3:55 PM EDT | Flash Flood Warning | PBZ | Allegheny, Beaver, Butler, Lawrence | 3 hr |
| Jul 10, 5:27 PM EDT | Flash Flood Warning | PBZ | Allegheny, Beaver, Washington | 3 hr |
| Jul 10, 6:11 PM EDT | Areal Flood Warning | PBZ | Armstrong, Butler, Indiana | 3 hr |
| Jul 10, 12:51 PM EDT | Flash Flood Warning | PBZ | Belmont, Guernsey | 3 hr |
| Jul 10, 5:02 PM EDT | Flash Flood Warning | PBZ | Harrison, Tuscarawas | 3 hr |
Nearby
Flash Flood Warnings in Pennsylvania, 2026Every flash flood warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.