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Home Return to list Severe Thunderstorm Warning 0263 Issued by the Pittsburgh Forecast Office
Action: New Issued At: 2026-08-10 11:07:19
427
WUUS51 KPBZ 101606
SVRPBZ
PAC003-125-129-101700-
/O.NEW.KPBZ.SV.W.0263.260810T1606Z-260810T1700Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Pittsburgh PA
1206 PM EDT Mon Aug 10 2026
The National Weather Service in Pittsburgh has issued a
* Severe Thunderstorm Warning for...
Southeastern Allegheny County in southwestern Pennsylvania...
East Central Washington County in southwestern Pennsylvania...
Southwestern Westmoreland County in southwestern Pennsylvania...
* Until 100 PM EDT.
* At 1206 PM EDT, a severe thunderstorm was located over South Park
Township, or over Gastonville, moving east at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
* Locations impacted include...
Bethel Park, Greensburg, McKeesport, Jeannette, Gastonville, West
Mifflin, South Park Township, Jefferson Hills, Pleasant Hills,
White Oak, Clairton, Donora, Glassport, Mount Pleasant,
Monongahela, Irwin, Manor and Youngwood.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds and large
hail.
Torrential rainfall is also occurring with this storm and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4022 8007 4033 8005 4039 7949 4013 7952
4012 7953 4013 7953 4013 7954 4012 7954
TIME...MOT...LOC 1606Z 273DEG 18KT 4028 7997
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
WM
Action: Continued Issued At: 2026-08-10 11:22:04
842
WWUS51 KPBZ 101621
SVSPBZ
Severe Weather Statement
National Weather Service Pittsburgh PA
1221 PM EDT Mon Aug 10 2026
PAC003-125-129-101700-
/O.CON.KPBZ.SV.W.0263.000000T0000Z-260810T1700Z/
Allegheny PA-Washington PA-Westmoreland PA-
1221 PM EDT Mon Aug 10 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1 PM EDT FOR
SOUTHEASTERN ALLEGHENY, EAST CENTRAL WASHINGTON AND SOUTHWESTERN
WESTMORELAND COUNTIES...
At 1221 PM EDT, a severe thunderstorm was located over Clairton, or
near McKeesport, moving east at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Law enforcement reported. Trees were reported down near
Clairton.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Greensburg, McKeesport, Jeannette, Gastonville, West Mifflin, South
Park Township, Jefferson Hills, Pleasant Hills, White Oak,
Clairton, Donora, Glassport, Mount Pleasant, Monongahela, Irwin,
Manor, Youngwood and West Newton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter inside a well-built structure and stay away from
windows. This storm has produced damaging winds and is capable of
producing large hail.
Torrential rainfall is also occurring with this storm and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4021 8003 4033 8002 4039 7949 4013 7952
4012 7953 4013 7953 4013 7954 4012 7954
TIME...MOT...LOC 1606Z 273DEG 18KT 4028 7997
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH
$$
WM
Action: Continued Issued At: 2026-08-10 11:32:20
130
WWUS51 KPBZ 101632
SVSPBZ
Severe Weather Statement
National Weather Service Pittsburgh PA
1232 PM EDT Mon Aug 10 2026
PAC125-101642-
/O.CAN.KPBZ.SV.W.0263.000000T0000Z-260810T1700Z/
Washington PA-
1232 PM EDT Mon Aug 10 2026
...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR EAST CENTRAL
WASHINGTON COUNTY...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 300 PM EDT for a
portion of southwest Pennsylvania.
&&
LAT...LON 4019 7990 4034 7986 4039 7949 4013 7952
4012 7953 4013 7953 4013 7954 4012 7954
4018 7985 4020 7987 4019 7989
TIME...MOT...LOC 1621Z 273DEG 18KT 4028 7987
$$
PAC003-129-101700-
/O.CON.KPBZ.SV.W.0263.000000T0000Z-260810T1700Z/
Allegheny PA-Westmoreland PA-
1232 PM EDT Mon Aug 10 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1 PM EDT FOR
SOUTHEASTERN ALLEGHENY AND SOUTHWESTERN WESTMORELAND COUNTIES...
At 1232 PM EDT, a severe thunderstorm was located near White Oak, or
5 miles southeast of McKeesport, moving east at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Law enforcement reported. Trees were reported down near
Clairton.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Greensburg, McKeesport, Jeannette, White Oak, Mount Pleasant,
Irwin, Manor, Youngwood, West Newton, Liberty, New Stanton,
Versailles, Lincoln, North Irwin, Sutersville and Penn.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter inside a well-built structure and stay away from
windows. This storm has produced damaging winds and is capable of
producing large hail.
Torrential rainfall is also occurring with this storm and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4019 7990 4034 7986 4039 7949 4013 7952
4012 7953 4013 7953 4013 7954 4012 7954
4018 7985 4020 7987 4019 7989
TIME...MOT...LOC 1621Z 273DEG 18KT 4028 7987
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH
$$
WM
Action: Cancelled Issued At: 2026-08-10 11:32:20
130
WWUS51 KPBZ 101632
SVSPBZ
Severe Weather Statement
National Weather Service Pittsburgh PA
1232 PM EDT Mon Aug 10 2026
PAC125-101642-
/O.CAN.KPBZ.SV.W.0263.000000T0000Z-260810T1700Z/
Washington PA-
1232 PM EDT Mon Aug 10 2026
...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR EAST CENTRAL
WASHINGTON COUNTY...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 300 PM EDT for a
portion of southwest Pennsylvania.
&&
LAT...LON 4019 7990 4034 7986 4039 7949 4013 7952
4012 7953 4013 7953 4013 7954 4012 7954
4018 7985 4020 7987 4019 7989
TIME...MOT...LOC 1621Z 273DEG 18KT 4028 7987
$$
PAC003-129-101700-
/O.CON.KPBZ.SV.W.0263.000000T0000Z-260810T1700Z/
Allegheny PA-Westmoreland PA-
1232 PM EDT Mon Aug 10 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1 PM EDT FOR
SOUTHEASTERN ALLEGHENY AND SOUTHWESTERN WESTMORELAND COUNTIES...
At 1232 PM EDT, a severe thunderstorm was located near White Oak, or
5 miles southeast of McKeesport, moving east at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Law enforcement reported. Trees were reported down near
Clairton.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Greensburg, McKeesport, Jeannette, White Oak, Mount Pleasant,
Irwin, Manor, Youngwood, West Newton, Liberty, New Stanton,
Versailles, Lincoln, North Irwin, Sutersville and Penn.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter inside a well-built structure and stay away from
windows. This storm has produced damaging winds and is capable of
producing large hail.
Torrential rainfall is also occurring with this storm and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4019 7990 4034 7986 4039 7949 4013 7952
4012 7953 4013 7953 4013 7954 4012 7954
4018 7985 4020 7987 4019 7989
TIME...MOT...LOC 1621Z 273DEG 18KT 4028 7987
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH
$$
WM
Action: Continued Issued At: 2026-08-10 11:41:50
250
WWUS51 KPBZ 101641
SVSPBZ
Severe Weather Statement
National Weather Service Pittsburgh PA
1241 PM EDT Mon Aug 10 2026
PAC003-101651-
/O.CAN.KPBZ.SV.W.0263.000000T0000Z-260810T1700Z/
Allegheny PA-
1241 PM EDT Mon Aug 10 2026
...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR SOUTHEASTERN
ALLEGHENY COUNTY...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 300 PM EDT for a
portion of southwest Pennsylvania.
&&
LAT...LON 4018 7985 4021 7984 4023 7978 4024 7981
4026 7979 4028 7980 4029 7978 4030 7979
4035 7977 4039 7949 4013 7952 4013 7954
4012 7954
TIME...MOT...LOC 1632Z 274DEG 18KT 4027 7980
$$
PAC129-101700-
/O.CON.KPBZ.SV.W.0263.000000T0000Z-260810T1700Z/
Westmoreland PA-
1241 PM EDT Mon Aug 10 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1 PM EDT FOR
SOUTHWESTERN WESTMORELAND COUNTY...
At 1241 PM EDT, a severe thunderstorm was located near Irwin, or 8
miles southeast of McKeesport, moving east at 20 mph.
HAZARD...60 mph wind gusts and small hail.
SOURCE...Law enforcement reported. Trees were reported down near
Clairton.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Greensburg, Jeannette, Mount Pleasant, Irwin, Manor, Youngwood,
West Newton, New Stanton, North Irwin, Sutersville, Penn, Madison,
Arona, Hunker, Adamsburg, Herminie, Grapeville and Harrison City.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter inside a well-built structure and stay away from
windows. This storm has produced damaging winds.
Torrential rainfall is also occurring with this storm and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4018 7985 4021 7984 4023 7978 4024 7981
4026 7979 4028 7980 4029 7978 4030 7979
4035 7977 4039 7949 4013 7952 4013 7954
4012 7954
TIME...MOT...LOC 1632Z 274DEG 18KT 4027 7980
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<1.00 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH
$$
WM
Action: Cancelled Issued At: 2026-08-10 11:41:50
250
WWUS51 KPBZ 101641
SVSPBZ
Severe Weather Statement
National Weather Service Pittsburgh PA
1241 PM EDT Mon Aug 10 2026
PAC003-101651-
/O.CAN.KPBZ.SV.W.0263.000000T0000Z-260810T1700Z/
Allegheny PA-
1241 PM EDT Mon Aug 10 2026
...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR SOUTHEASTERN
ALLEGHENY COUNTY...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 300 PM EDT for a
portion of southwest Pennsylvania.
&&
LAT...LON 4018 7985 4021 7984 4023 7978 4024 7981
4026 7979 4028 7980 4029 7978 4030 7979
4035 7977 4039 7949 4013 7952 4013 7954
4012 7954
TIME...MOT...LOC 1632Z 274DEG 18KT 4027 7980
$$
PAC129-101700-
/O.CON.KPBZ.SV.W.0263.000000T0000Z-260810T1700Z/
Westmoreland PA-
1241 PM EDT Mon Aug 10 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1 PM EDT FOR
SOUTHWESTERN WESTMORELAND COUNTY...
At 1241 PM EDT, a severe thunderstorm was located near Irwin, or 8
miles southeast of McKeesport, moving east at 20 mph.
HAZARD...60 mph wind gusts and small hail.
SOURCE...Law enforcement reported. Trees were reported down near
Clairton.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Greensburg, Jeannette, Mount Pleasant, Irwin, Manor, Youngwood,
West Newton, New Stanton, North Irwin, Sutersville, Penn, Madison,
Arona, Hunker, Adamsburg, Herminie, Grapeville and Harrison City.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter inside a well-built structure and stay away from
windows. This storm has produced damaging winds.
Torrential rainfall is also occurring with this storm and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4018 7985 4021 7984 4023 7978 4024 7981
4026 7979 4028 7980 4029 7978 4030 7979
4035 7977 4039 7949 4013 7952 4013 7954
4012 7954
TIME...MOT...LOC 1632Z 274DEG 18KT 4027 7980
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<1.00 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH
$$
WM
Action: Continued Issued At: 2026-08-10 11:51:20
575
WWUS51 KPBZ 101651
SVSPBZ
Severe Weather Statement
National Weather Service Pittsburgh PA
1251 PM EDT Mon Aug 10 2026
PAC129-101700-
/O.CON.KPBZ.SV.W.0263.000000T0000Z-260810T1700Z/
Westmoreland PA-
1251 PM EDT Mon Aug 10 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1 PM EDT FOR
SOUTHWESTERN WESTMORELAND COUNTY...
At 1251 PM EDT, a severe thunderstorm was located near Irwin, or 5
miles southwest of Jeannette, moving east at 20 mph.
HAZARD...60 mph wind gusts and small hail.
SOURCE...Law enforcement reported. Trees were reported down near
Clairton.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Greensburg, Jeannette, Mount Pleasant, Manor, Youngwood, New
Stanton, Penn, Madison, Arona, Hunker, Adamsburg and Grapeville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter inside a well-built structure and stay away from
windows. This storm has produced damaging winds.
Torrential rainfall is also occurring with this storm and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4019 7972 4021 7969 4028 7970 4034 7968
4039 7949 4013 7952 4013 7954 4012 7954
4016 7973
TIME...MOT...LOC 1641Z 274DEG 18KT 4027 7974
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<1.00 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH
$$
WM
Action: Expired Issued At: 2026-08-10 11:57:20
678
WWUS51 KPBZ 101656
SVSPBZ
Severe Weather Statement
National Weather Service Pittsburgh PA
1256 PM EDT Mon Aug 10 2026
PAC129-101706-
/O.EXP.KPBZ.SV.W.0263.000000T0000Z-260810T1700Z/
Westmoreland PA-
1256 PM EDT Mon Aug 10 2026
...SEVERE THUNDERSTORM WARNING WILL EXPIRE AT 1 PM EDT FOR
SOUTHWESTERN WESTMORELAND COUNTY...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However, small
hail, gusty winds, and heavy rain are still possible with this
thunderstorm.
A Severe Thunderstorm Watch remains in effect until 300 PM EDT for a
portion of southwest Pennsylvania.
&&
LAT...LON 4019 7972 4021 7969 4028 7970 4034 7968
4039 7949 4013 7952 4013 7954 4012 7954
4016 7973
TIME...MOT...LOC 1651Z 274DEG 18KT 4027 7967
$$
WM
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