Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 101, NWS Pittsburgh, PA

August 12, 20234 counties in Pennsylvania

NWS Pittsburgh, PA issued this severe thunderstorm warning at Aug 12, 2023, 6:21 PM EDT for 4 counties in Pennsylvania. It was in force for 39 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: Aug 12, 2023, 6:21 PM EDT (22:21 UTC)
Expired: Aug 12, 2023, 7:00 PM EDT
In force: 39 min
Issued by: NWS Pittsburgh, PA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

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

The radar

The Pittsburgh radar (KPBZ), 44 km from the middle of the area, began a volume at 22:20 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 12, 12:50 PM EDT	Tornado Watch	SPC	8 hr

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Aug 12, 2:49 PM EDT, 3 hours 32 minutes earlier.

Area forecast discussion, Aug 12, 2:49 PM EDT, 3 hours 32 minutes before

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Hazardous weather outlook, Aug 12, 1:38 PM EDT, 4 hours 43 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, 5:33 PM EDT, 48 minutes before

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Local storm report, Aug 12, 5:34 PM EDT, 47 minutes before

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Local storm report, Aug 12, 5:37 PM EDT, 44 minutes before

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Local storm report, Aug 12, 5:51 PM EDT, 30 minutes before

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Special weather statement, Aug 12, 6:02 PM EDT, 19 minutes before

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Special weather statement, Aug 12, 6:14 PM EDT, 7 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 11, 9:43 PM EDT	Special Weather Statement	PBZ	Lawrence	47 min
Aug 11, 10:51 PM EDT	Areal Flood Advisory	PBZ	Lawrence	3 hr
Aug 11, 11:35 PM EDT	Areal Flood Advisory	PBZ	Beaver, Butler, Lawrence	3 hr
Aug 12, 12:12 AM EDT	Areal Flood Advisory	PBZ	Allegheny, Beaver, Butler	6 hr
Aug 12, 4:04 AM EDT	Areal Flood Advisory	PBZ	Allegheny	116 min
Aug 12, 1:36 PM EDT	Flood Watch	PBZ	Allegheny, Beaver, Butler, Lawrence, Washington, Westmoreland	8 hr
Aug 12, 3:12 PM EDT	Special Weather Statement	PBZ	Forest	33 min
Aug 12, 3:34 PM EDT	Special Weather Statement	PBZ	Forest	26 min
Aug 12, 3:36 PM EDT	Severe Thunderstorm Warning	PBZ	Forest, Venango	39 min
Aug 12, 3:42 PM EDT	Special Weather Statement	PBZ	Indiana	33 min
Aug 12, 4:15 PM EDT	Special Weather Statement	PBZ	Jefferson	15 min
Aug 12, 4:23 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Jefferson	9 min
Aug 12, 5:03 PM EDT	Severe Thunderstorm Warning	PBZ	Lawrence	41 min
Aug 12, 5:07 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	38 min
Aug 12, 5:48 PM EDT	Flash Flood Warning	PBZ	Lawrence	2 hr
Aug 12, 6:02 PM EDT	Flash Flood Warning	PBZ	Allegheny, Beaver, Butler, Lawrence	2 hr
Aug 12, 6:02 PM EDT	Special Weather Statement	PBZ	Allegheny	43 min
Aug 12, 6:17 PM EDT	Areal Flood Advisory	PBZ	Lawrence, Mercer	99 min
Aug 12, 6:24 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Washington	51 min
Aug 12, 6:37 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	38 min
Aug 12, 6:48 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana, Westmoreland	42 min
Aug 12, 6:54 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	51 min
Aug 12, 6:57 PM EDT	Flash Flood Warning	PBZ	Allegheny, Armstrong, Butler, Indiana, Westmoreland	2 hr
Aug 12, 7:00 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	45 min
Aug 12, 7:12 PM EDT	Special Weather Statement	PBZ	Washington	48 min
Aug 12, 7:26 PM EDT	Special Weather Statement	PBZ	Allegheny	34 min
Aug 12, 7:30 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Westmoreland	19 min
Aug 12, 7:36 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	39 min
Aug 12, 3:46 PM EDT	Special Weather Statement	PBZ	Brooke	29 min
Aug 12, 5:40 PM EDT	Severe Thunderstorm Warning	PBZ	Brooke, Hancock, Ohio	50 min
Aug 12, 6:14 PM EDT	Special Weather Statement	PBZ	Brooke	31 min
Aug 12, 6:26 PM EDT	Areal Flood Advisory	PBZ	Brooke, Hancock	11 min
Aug 12, 6:31 PM EDT	Special Weather Statement	PBZ	Hancock	29 min
Aug 12, 6:37 PM EDT	Flash Flood Warning	PBZ	Brooke, Hancock	2 hr
Aug 12, 3:37 PM EDT	Tornado Warning	PBZ	Coshocton, Tuscarawas	23 min
Aug 12, 3:58 PM EDT	Severe Thunderstorm Warning	PBZ	Carroll, Harrison, Tuscarawas	62 min
Aug 12, 4:31 PM EDT	Special Weather Statement	PBZ	Coshocton	44 min
Aug 12, 4:51 PM EDT	Tornado Warning	PBZ	Carroll, Harrison, Tuscarawas	24 min
Aug 12, 4:53 PM EDT	Severe Thunderstorm Warning	PBZ	Coshocton	26 min
Aug 12, 5:01 PM EDT	Areal Flood Advisory	PBZ	Tuscarawas	54 min
Aug 12, 5:01 PM EDT	Severe Thunderstorm Warning	PBZ	Carroll, Harrison, Jefferson, Tuscarawas	44 min
Aug 12, 5:14 PM EDT	Tornado Warning	PBZ	Carroll, Harrison, Jefferson	31 min
Aug 12, 5:33 PM EDT	Special Weather Statement	PBZ	Carroll	27 min
Aug 12, 5:51 PM EDT	Severe Thunderstorm Warning	PBZ	Carroll, Columbiana, Jefferson	39 min
Aug 12, 5:55 PM EDT	Flash Flood Warning	PBZ	Tuscarawas	3 hr
Aug 12, 6:41 PM EDT	Severe Thunderstorm Warning	PBZ	Coshocton, Tuscarawas	49 min
Aug 12, 6:45 PM EDT	Special Weather Statement	PBZ	Carroll	30 min
Aug 12, 7:28 PM EDT	Severe Thunderstorm Warning	PBZ	Belmont, Guernsey, Harrison, Jefferson, Tuscarawas	47 min
Aug 12, 7:47 PM EDT	Special Weather Statement	PBZ	Noble	28 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2023 Every severe thunderstorm 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.