Alert archive / Pennsylvania / Flash Flood Warnings in 2023

Flash Flood Warning 30, NWS Pittsburgh, PA

August 12, 20235 counties in Pennsylvania

NWS Pittsburgh, PA issued this flash flood warning at Aug 12, 2023, 6:57 PM EDT for 5 counties in Pennsylvania. It was in force for 2 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
Aug 12, 2023, 6:57 PM EDT (22:57 UTC)
Expired
Aug 12, 2023, 9:26 PM EDT
In force
2 hr
Issued by
NWS Pittsburgh, PA
Area
Storm-based polygon
Flood severity
None

Counties Allegheny County, PA, Armstrong County, PA, Butler County, PA, Indiana County, PA, Westmoreland County, PA

The radar

The Pittsburgh radar (KPBZ), 55 km from the middle of the area, began a volume at 23:01 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 Aug 12, 2:49 PM EDT, 4 hours 8 minutes earlier.

Area forecast discussion, Aug 12, 2:49 PM EDT, 4 hours 8 minutes before
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Hazardous weather outlook, Aug 12, 1:38 PM EDT, 5 hours 19 minutes before
Hazardous Weather Outlook...UPDATED
National Weather Service Pittsburgh PA
138 PM EDT Sat Aug 12 2023

OHZ039>041-049-050-PAZ013-014-020-021-029-073-074-WVZ001>003-131745-
Tuscarawas-Carroll-Columbiana-Harrison-Jefferson OH-Lawrence-Butler-
Beaver-Allegheny-Washington-Westmoreland-
Higher Elevations of Westmoreland-Hancock-Brooke-Ohio-
138 PM EDT Sat Aug 12 2023

...TORNADO WATCH 634 IN EFFECT UNTIL 9 PM EDT THIS EVENING...
...FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT...

This Hazardous Weather Outlook is for east central Ohio, southwest
Pennsylvania, 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.

   Tornado Watch.
   Flood Watch.

Significant severe weather is possible this afternoon and evening
across the Ohio River Valley. Tornadoes, hail, and damaging wind
gusts are possible along with locally heavy rain.

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

Confidence is increasing that severe weather and heavy rain is
possible Monday afternoon/evening across the region.

.SPOTTER INFORMATION STATEMENT...

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

OHZ048-057>059-068-069-PAZ007>009-015-016-022-077-078-WVZ004-131745-
Coshocton-Muskingum-Guernsey-Belmont-Noble-Monroe-Mercer-Venango-
Forest-Clarion-Jefferson PA-Armstrong-Indiana-
Higher Elevations of Indiana-Marshall-
138 PM EDT Sat Aug 12 2023

...TORNADO WATCH 634 IN EFFECT UNTIL 9 PM EDT THIS EVENING...

This Hazardous Weather Outlook is for east central Ohio, northwest
Pennsylvania, western Pennsylvania and the northern panhandle of
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.

   Tornado Watch.

Significant severe weather is possible this afternoon and evening
across the Ohio River Valley. Tornadoes, hail, and damaging wind
gusts are possible along with locally heavy rain.

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

Confidence is increasing that severe weather and heavy rain is
possible Monday afternoon/evening across the region.

.SPOTTER INFORMATION STATEMENT...

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

PAZ031-075-076-WVZ012-021-509>514-131745-
Greene-Fayette-Higher Elevations of Fayette-Wetzel-Marion-Monongalia-
Ridges of Eastern Monongalia and Northwestern Preston-Preston-
Eastern Preston-Western Tucker-Eastern Tucker-
138 PM EDT Sat Aug 12 2023

This Hazardous Weather Outlook is for southwest Pennsylvania and
northern West Virginia.

.DAY ONE...This afternoon and tonight.

Significant severe weather is possible this evening. Tornadoes,
hail, and damaging wind gusts are possible along with locally heavy
rain.

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

Confidence is increasing that severe weather and heavy rainfall is
possible Monday afternoon/evening across the region.

.SPOTTER INFORMATION STATEMENT...

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

Craven

In the hours before

Special weather statement, Aug 12, 6:02 PM EDT, 55 minutes before
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Special weather statement, Aug 12, 6:14 PM EDT, 43 minutes before
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Local storm report, Aug 12, 6:31 PM EDT, 26 minutes before
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Special weather statement, Aug 12, 6:31 PM EDT, 26 minutes before
Special Weather Statement
National Weather Service Pittsburgh PA
631 PM EDT Sat Aug 12 2023

OHZ040-041-050-PAZ020-WVZ001-122300-
Jefferson OH-Columbiana OH-Carroll OH-Beaver PA-Hancock WV-
631 PM EDT Sat Aug 12 2023

...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN JEFFERSON...
SOUTHEASTERN COLUMBIANA...EAST CENTRAL CARROLL...WEST CENTRAL BEAVER
AND HANCOCK COUNTIES THROUGH 700 PM EDT...

At 631 PM EDT, Doppler radar was tracking a strong thunderstorm 8
miles west of Wellsville, moving east at 35 mph.

HAZARD...Wind gusts up to 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
East Liverpool, Wellsville, Calcutta, Ohioville, Midland, Chester,
Industry, New Cumberland, Salineville, Newell, Irondale, New
Manchester, Empire, Stratton, Georgetown, Summitville, Hammondsville,
Glasgow, La Croft, and Tomlinson Run State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Tornado Watch remains in effect until 900 PM EDT for east central
Ohio...western Pennsylvania...and northern West Virginia.

&&

LAT...LON 4069 8044 4047 8053 4057 8095 4074 8088
TIME...MOT...LOC 2231Z 285DEG 29KT 4063 8082

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

Rackley
Local storm report, Aug 12, 6:38 PM EDT, 19 minutes before
Preliminary Local Storm Report
National Weather Service Pittsburgh PA
638 PM EDT Sat Aug 12 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0545 PM     Flash Flood      1 NE North Edinburg     41.03N  80.43W
08/12/2023                   Lawrence           PA   Trained Spotter

            Water flowing across Highway 224 near Harbor Edinburg
            Rd. Water was at least 8 inches deep

&&

Event Number PBZ2302112

Kramar
Special weather statement, Aug 12, 6:45 PM EDT, 12 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 11, 9:43 PM EDTSpecial Weather StatementPBZLawrence47 min
Aug 11, 10:51 PM EDTAreal Flood AdvisoryPBZLawrence3 hr
Aug 11, 11:35 PM EDTAreal Flood AdvisoryPBZBeaver, Butler, Lawrence3 hr
Aug 12, 12:12 AM EDTAreal Flood AdvisoryPBZAllegheny, Beaver, Butler6 hr
Aug 12, 4:04 AM EDTAreal Flood AdvisoryPBZAllegheny116 min
Aug 12, 1:36 PM EDTFlood WatchPBZAllegheny, Beaver, Butler, Lawrence, Washington, Westmoreland8 hr
Aug 12, 3:12 PM EDTSpecial Weather StatementPBZForest33 min
Aug 12, 3:34 PM EDTSpecial Weather StatementPBZForest26 min
Aug 12, 3:36 PM EDTSevere Thunderstorm WarningPBZForest, Venango39 min
Aug 12, 3:42 PM EDTSpecial Weather StatementPBZIndiana33 min
Aug 12, 4:15 PM EDTSpecial Weather StatementPBZJefferson15 min
Aug 12, 4:23 PM EDTSevere Thunderstorm WarningPBZIndiana, Jefferson9 min
Aug 12, 5:03 PM EDTSevere Thunderstorm WarningPBZLawrence41 min
Aug 12, 5:07 PM EDTSevere Thunderstorm WarningPBZMercer38 min
Aug 12, 5:48 PM EDTFlash Flood WarningPBZLawrence2 hr
Aug 12, 6:02 PM EDTFlash Flood WarningPBZAllegheny, Beaver, Butler, Lawrence2 hr
Aug 12, 6:02 PM EDTSpecial Weather StatementPBZAllegheny43 min
Aug 12, 6:17 PM EDTAreal Flood AdvisoryPBZLawrence, Mercer99 min
Aug 12, 6:21 PM EDTSevere Thunderstorm WarningPBZAllegheny, Armstrong, Butler, Westmoreland39 min
Aug 12, 6:24 PM EDTSevere Thunderstorm WarningPBZAllegheny, Beaver, Washington51 min
Aug 12, 6:37 PM EDTSevere Thunderstorm WarningPBZBeaver38 min
Aug 12, 6:48 PM EDTSevere Thunderstorm WarningPBZArmstrong, Indiana, Westmoreland42 min
Aug 12, 6:54 PM EDTSevere Thunderstorm WarningPBZWashington51 min
Aug 12, 7:00 PM EDTSevere Thunderstorm WarningPBZBeaver45 min
Aug 12, 7:12 PM EDTSpecial Weather StatementPBZWashington48 min
Aug 12, 7:26 PM EDTSpecial Weather StatementPBZAllegheny34 min
Aug 12, 7:30 PM EDTSevere Thunderstorm WarningPBZIndiana, Westmoreland19 min
Aug 12, 7:36 PM EDTSevere Thunderstorm WarningPBZWashington39 min
Aug 12, 3:46 PM EDTSpecial Weather StatementPBZBrooke29 min
Aug 12, 5:40 PM EDTSevere Thunderstorm WarningPBZBrooke, Hancock, Ohio50 min
Aug 12, 6:14 PM EDTSpecial Weather StatementPBZBrooke31 min
Aug 12, 6:26 PM EDTAreal Flood AdvisoryPBZBrooke, Hancock11 min
Aug 12, 6:31 PM EDTSpecial Weather StatementPBZHancock29 min
Aug 12, 6:37 PM EDTFlash Flood WarningPBZBrooke, Hancock2 hr
Aug 12, 3:37 PM EDTTornado WarningPBZCoshocton, Tuscarawas23 min
Aug 12, 3:58 PM EDTSevere Thunderstorm WarningPBZCarroll, Harrison, Tuscarawas62 min
Aug 12, 4:31 PM EDTSpecial Weather StatementPBZCoshocton44 min
Aug 12, 4:51 PM EDTTornado WarningPBZCarroll, Harrison, Tuscarawas24 min
Aug 12, 4:53 PM EDTSevere Thunderstorm WarningPBZCoshocton26 min
Aug 12, 5:01 PM EDTAreal Flood AdvisoryPBZTuscarawas54 min
Aug 12, 5:01 PM EDTSevere Thunderstorm WarningPBZCarroll, Harrison, Jefferson, Tuscarawas44 min
Aug 12, 5:14 PM EDTTornado WarningPBZCarroll, Harrison, Jefferson31 min
Aug 12, 5:33 PM EDTSpecial Weather StatementPBZCarroll27 min
Aug 12, 5:51 PM EDTSevere Thunderstorm WarningPBZCarroll, Columbiana, Jefferson39 min
Aug 12, 5:55 PM EDTFlash Flood WarningPBZTuscarawas3 hr
Aug 12, 6:41 PM EDTSevere Thunderstorm WarningPBZCoshocton, Tuscarawas49 min
Aug 12, 6:45 PM EDTSpecial Weather StatementPBZCarroll30 min
Aug 12, 7:28 PM EDTSevere Thunderstorm WarningPBZBelmont, Guernsey, Harrison, Jefferson, Tuscarawas47 min
Aug 12, 7:47 PM EDTSpecial Weather StatementPBZNoble28 min

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.