Alert archive / Pennsylvania / Flash Flood Warnings in 2023

Flash Flood Warning 1, NWS Pittsburgh, PA

July 1, 2023Allegheny County, Butler County, Westmoreland County, Pennsylvania

NWS Pittsburgh, PA issued this flash flood warning at Jul 1, 2023, 3:38 PM EDT for Allegheny County, Butler County, Westmoreland County, Pennsylvania. It was in force for 62 min. 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 1, 2023, 3:38 PM EDT (19:38 UTC)
Expired
Jul 1, 2023, 4:40 PM EDT
In force
62 min
Issued by
NWS Pittsburgh, PA
Area
Storm-based polygon
Flood severity
None

Counties Allegheny County, PA, Butler County, PA, Westmoreland County, PA

The radar

The Pittsburgh radar (KPBZ), 37 km from the middle of the area, began a volume at 19:40 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.

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 1, 2:09 PM EDT, 1 hour 29 minutes earlier.

Area forecast discussion, Jul 1, 2:09 PM EDT, 1 hour 29 minutes before
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Hazardous weather outlook, Jul 1, 2:15 PM EDT, 1 hour 23 minutes before
Hazardous Weather Outlook
National Weather Service Pittsburgh PA
215 PM EDT Sat Jul 1 2023

OHZ039>041-048>050-PAZ007>009-013>016-020>022-073-074-077-078-WVZ001-
002-021815-
Tuscarawas-Carroll-Columbiana-Coshocton-Harrison-Jefferson OH-Mercer-
Venango-Forest-Lawrence-Butler-Clarion-Jefferson PA-Beaver-Allegheny-
Armstrong-Westmoreland-Higher Elevations of Westmoreland-Indiana-
Higher Elevations of Indiana-Hancock-Brooke-
215 PM EDT Sat Jul 1 2023

This Hazardous Weather Outlook is for east central Ohio, western
Pennsylvania, and northern West Virginia.

.DAY ONE...This afternoon and tonight.

Isolated severe thunderstorms are possible this evening, though
uncertainty in development remains. If the threat develops, the main
concern will be damaging wind gusts.

Thunderstorms may also produce locally heavy rainfall, which could
lead to isolated flash flooding.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Isolated severe thunderstorms will be possible again on Sunday
afternoon and evening. Damaging wind and hail will be the primary
threats.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

OHZ057>059-068-069-PAZ029-031-075-076-WVZ003-004-012-021-509>514-
021815-
Muskingum-Guernsey-Belmont-Noble-Monroe-Washington-Greene-Fayette-
Higher Elevations of Fayette-Ohio-Marshall-Wetzel-Marion-Monongalia-
Ridges of Eastern Monongalia and Northwestern Preston-Preston-
Eastern Preston-Western Tucker-Eastern Tucker-
215 PM EDT Sat Jul 1 2023

This Hazardous Weather Outlook is for east central Ohio, southwest
Pennsylvania, and northern West Virginia.

.DAY ONE...This afternoon and tonight.

Isolated severe thunderstorms are possible this evening, though
uncertainty in development remains. If the threat develops, the main
concern will be damaging wind gusts.

Thunderstorms may also produce locally heavy rainfall, which could
lead to isolated flash flooding.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Scattered severe thunderstorms will be possible again on Sunday
afternoon and evening. Damaging wind and hail will be the primary
threats.

Thunderstorms may also produce locally heavy rainfall, which could
lead to isolated flash flooding.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

In the hours before

Special weather statement, Jul 1, 12:01 PM EDT, 3 hours 37 minutes before
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Special weather statement, Jul 1, 2:07 PM EDT, 1 hour 31 minutes before
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The office that day

Everything else NWS Pittsburgh, PA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 1, 12:01 PM EDTSpecial Weather StatementPBZBeaver29 min
Jul 1, 2:07 PM EDTSpecial Weather StatementPBZIndiana23 min
Jul 1, 5:15 PM EDTFlash Flood WarningPBZIndiana, Westmoreland110 min
Jul 1, 6:06 PM EDTFlash Flood WarningPBZBeaver4 hr
Jul 1, 6:28 PM EDTFlash Flood WarningPBZBeaver, Lawrence108 min
Jul 1, 6:55 PM EDTFlash Flood WarningPBZAllegheny, Beaver, Butler, Westmoreland3 hr

Nearby

Flash Flood Warnings in Pennsylvania, 2023Every flash flood warning in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.