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Home Return to list Severe Thunderstorm Warning 0299 Issued by the Mount Holly / Philadelphia Forecast Office
Action: New Issued At: 2026-08-10 15:47:41
759
WUUS51 KPHI 102046
SVRPHI
DEC003-PAC029-045-102130-
/O.NEW.KPHI.SV.W.0299.260810T2046Z-260810T2130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
446 PM EDT Mon Aug 10 2026
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
North central New Castle County in northern Delaware...
Southeastern Chester County in southeastern Pennsylvania...
Delaware County in southeastern Pennsylvania...
* Until 530 PM EDT.
* At 446 PM EDT, a severe thunderstorm was located over Marshallton,
or near West Chester, moving east at 30 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
West Chester, Chester, Westtown, Downingtown, Swarthmore, Kennett
Square, Cheyney, Elam, Marshallton, Trout Lake, Chelsea, Radnor
Township, Gradyville, Broomall, Newtown Square, Chester Township,
Lima, Nether Providence Township, Paoli, and Philadelphia
International Arpt.
This includes the following highways...
Interstate 95 in Pennsylvania between mile markers 1 and 9.
Interstate 476 in Pennsylvania between mile markers 0 and 14.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Mount Holly NJ.
&&
LAT...LON 4000 7579 4007 7540 4007 7536 4006 7535
4003 7533 3985 7529 3985 7533 3983 7537
3979 7577
TIME...MOT...LOC 2046Z 266DEG 24KT 3992 7569
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MPS
Action: Cancelled Issued At: 2026-08-10 16:00:56
061
WWUS51 KPHI 102100
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
500 PM EDT Mon Aug 10 2026
DEC003-102110-
/O.CAN.KPHI.SV.W.0299.000000T0000Z-260810T2130Z/
New Castle DE-
500 PM EDT Mon Aug 10 2026
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL NEW CASTLE
COUNTY IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
southeastern Pennsylvania.
LAT...LON 3986 7563 4002 7569 4007 7540 4007 7536
4006 7535 4003 7533 3990 7530
TIME...MOT...LOC 2100Z 252DEG 24KT 3997 7558
$$
PAC029-045-102130-
/O.CON.KPHI.SV.W.0299.000000T0000Z-260810T2130Z/
Chester PA-Delaware PA-
500 PM EDT Mon Aug 10 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR EAST CENTRAL CHESTER AND CENTRAL DELAWARE COUNTIES...
At 500 PM EDT, a severe thunderstorm was located over West Chester,
moving east at 25 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
West Chester, Westtown, Downingtown, Swarthmore, Cheyney, Lima, Trout
Lake, Radnor Township, Gradyville, Nether Providence Township,
Broomall, Paoli, Newtown Square, Concordville, Drexel Hill, Darby
Township, West Goshen, Glenolden, Clifton Heights, and Media.
This includes Interstate 476 in Pennsylvania between mile markers 2
and 14.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Mount Holly NJ.
&&
LAT...LON 3986 7563 4002 7569 4007 7540 4007 7536
4006 7535 4003 7533 3990 7530
TIME...MOT...LOC 2100Z 252DEG 24KT 3997 7558
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MPS
Action: Continued Issued At: 2026-08-10 16:00:56
061
WWUS51 KPHI 102100
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
500 PM EDT Mon Aug 10 2026
DEC003-102110-
/O.CAN.KPHI.SV.W.0299.000000T0000Z-260810T2130Z/
New Castle DE-
500 PM EDT Mon Aug 10 2026
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL NEW CASTLE
COUNTY IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
southeastern Pennsylvania.
LAT...LON 3986 7563 4002 7569 4007 7540 4007 7536
4006 7535 4003 7533 3990 7530
TIME...MOT...LOC 2100Z 252DEG 24KT 3997 7558
$$
PAC029-045-102130-
/O.CON.KPHI.SV.W.0299.000000T0000Z-260810T2130Z/
Chester PA-Delaware PA-
500 PM EDT Mon Aug 10 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR EAST CENTRAL CHESTER AND CENTRAL DELAWARE COUNTIES...
At 500 PM EDT, a severe thunderstorm was located over West Chester,
moving east at 25 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
West Chester, Westtown, Downingtown, Swarthmore, Cheyney, Lima, Trout
Lake, Radnor Township, Gradyville, Nether Providence Township,
Broomall, Paoli, Newtown Square, Concordville, Drexel Hill, Darby
Township, West Goshen, Glenolden, Clifton Heights, and Media.
This includes Interstate 476 in Pennsylvania between mile markers 2
and 14.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Mount Holly NJ.
&&
LAT...LON 3986 7563 4002 7569 4007 7540 4007 7536
4006 7535 4003 7533 3990 7530
TIME...MOT...LOC 2100Z 252DEG 24KT 3997 7558
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MPS
Action: Cancelled Issued At: 2026-08-10 16:06:26
204
WWUS51 KPHI 102106
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
506 PM EDT Mon Aug 10 2026
PAC029-045-102116-
/O.CAN.KPHI.SV.W.0299.000000T0000Z-260810T2130Z/
Chester PA-Delaware PA-
506 PM EDT Mon Aug 10 2026
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL CHESTER AND
CENTRAL DELAWARE COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
southeastern Pennsylvania.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mount Holly NJ.
LAT...LON 3986 7563 4002 7569 4007 7540 4007 7536
4006 7535 4003 7533 3990 7530
TIME...MOT...LOC 2103Z 266DEG 24KT 3997 7553
$$
MPS
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