Severe Thunderstorm Warning 12, NWS Philadelphia/Mount Holly

Issued

Feb 25, 2017, 4:40 PM EST (21:40 UTC)

Expired

Feb 25, 2017, 5:30 PM EST

In force

50 min

Issued by

NWS Philadelphia/Mount Holly

Area

Storm-based polygon

Hail

0.88 in

Wind

60.0 mph

Counties Kent County, DE, New Castle County, DE, Camden County, NJ, Cumberland County, NJ, Gloucester County, NJ, Salem County, NJ, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA

The Dover AFB radar (KDOX), 86 km from the middle of the area, began a volume at 21:43 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.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

055 
WUUS51 KPHI 252140
SVRPHI
DEC001-003-NJC007-011-015-033-PAC045-091-101-252230-
/O.NEW.KPHI.SV.W.0012.170225T2140Z-170225T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
440 PM EST SAT FEB 25 2017

The National Weather Service in Mount Holly NJ  has issued a

* Severe Thunderstorm Warning for...
  New Castle County in northern Delaware...
  Northern Kent County in central Delaware...
  Western Cumberland County in southern New Jersey...
  Salem County in southern New Jersey...
  Northwestern Camden County in southern New Jersey...
  Gloucester County in southern New Jersey...
  Southeastern Montgomery County in southeastern Pennsylvania...
  Philadelphia County in southeastern Pennsylvania...
  Delaware County in southeastern Pennsylvania...

* Until 530 PM EST

* At 439 PM EST, severe thunderstorms were located along a line
  extending from Concordville to near Warwick to near Hartly, moving
  northeast at 45 mph.

  HAZARD...60 mph wind gusts and nickel size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Expect damage to roofs, siding, and trees. 

* Severe thunderstorms will be near,
  Chester, Lima, Chelsea, Concordville, Chester Township and Elam 
  around 445 PM EST. 
  Swarthmore, Nether Providence Township, Broomall and Philadelphia 
  International Arpt around 450 PM EST. 
  Yeadon, Folcroft, East Lansdowne, Hope Creek, Drexel Hill, Port 
  Penn, Darby Township, Tinicum Township and Philadelphia 
  International Airport around 455 PM EST. 
  Narberth, Roxborough, Morris Park, Hancocks Bridge and South 
  Philadelphia around 500 PM EST. 
  Salem, Quinton, Kensington, Center City, Newport Meadows and Ben 
  Franklin Bridge around 505 PM EST. 
  Camden, Alloway, Shiloh, Wissinoming and Golden Triangle around 
  510 PM EST. 
  Bridgeton, Palmyra and Tacony around 515 PM EST. 
  Philadelphia, Newport, Olivet, Fortesque, Seabrook Farms, 
  Cedarville and Rosenhayn around 520 PM EST. 

Other locations impacted by these severe thunderstorms include Oak
Valley, Clifton Heights, Collingdale, Wyoming, Merchantville, Marcus
Hook, Trainer, Eddystone, Village Green-Green Ridge and Odessa.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

In addition to large hail and damaging winds...frequent cloud to
ground lightning is occurring with this storm. Move indoors
immediately. Remember...if you can hear thunder...you are close
enough to be struck by lightning.

&&

LAT...LON 3981 7569 3984 7560 3988 7559 3991 7555
      4008 7502 3999 7506 4000 7504 3957 7510
      3919 7507 3916 7517 3939 7548 3939 7549
      3927 7537 3915 7537 3908 7574 3972 7579
TIME...MOT...LOC 2139Z 245DEG 40KT 3990 7551 3939 7574 3910 7573 

HAIL...0.88IN
WIND...60MPH
 
$$

Robertson

932 
WWUS51 KPHI 252204
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
504 PM EST SAT FEB 25 2017

DEC001-003-NJC007-011-015-033-PAC045-091-101-252230-
/O.CON.KPHI.SV.W.0012.000000T0000Z-170225T2230Z/
New Castle DE-Kent DE-Cumberland NJ-Salem NJ-Camden NJ-Gloucester NJ-
Montgomery PA-Philadelphia PA-Delaware PA-
504 PM EST SAT FEB 25 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EST
FOR EASTERN NEW CASTLE...NORTHEASTERN KENT...WESTERN CUMBERLAND...
SALEM...NORTHWESTERN CAMDEN...GLOUCESTER...SOUTHEASTERN MONTGOMERY...
PHILADELPHIA AND SOUTHEASTERN DELAWARE COUNTIES...

At 504 PM EST, severe thunderstorms were located along a line
extending from Drexel Hill to Hancocks Bridge to Dover Base Housing,
moving northeast at 45 mph.

HAZARD...60 mph wind gusts and nickel size hail. 

SOURCE...Radar indicated. 

IMPACT...Expect damage to roofs, siding, and trees. 

These severe storms will be near...
  Yeadon, Folcroft, Narberth, East Lansdowne, Roxborough, Morris 
  Park, Drexel Hill, South Philadelphia, Darby Township and Broomall 
  around 510 PM EST. 
  Bridgeton, Kensington, Center City and Ben Franklin Bridge around 
  515 PM EST. 
  Camden, Woodstown, Wissinoming, Seabrook Farms and Golden Triangle 
  around 520 PM EST. 
  Palmyra, Elmer, Fortesque, Olivet, Tacony and Rosenhayn around 525 
  PM EST. 
  Philadelphia, Glassboro, Clayton, Dividing Creek, Newport and 
  Cedarville around 530 PM EST. 

Other locations impacted by these severe thunderstorms include Oak
Valley, Clifton Heights, Collingdale, Merchantville, Marcus Hook,
Trainer, Eddystone, Village Green-Green Ridge, Pennsauken and
Collingswood.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

In addition to large hail and damaging winds...frequent cloud to
ground lightning is occurring with this storm. Move indoors
immediately. Remember...if you can hear thunder...you are close
enough to be struck by lightning.

&&

LAT...LON 3958 7557 3994 7546 4008 7502 3999 7506
      4000 7504 3960 7510 3921 7507 3918 7519
      3939 7548 3939 7549 3927 7537 3915 7537
      3911 7561
TIME...MOT...LOC 2204Z 244DEG 40KT 3997 7531 3950 7545 3914 7547 

HAIL...0.88IN
WIND...60MPH
 
$$

Robertson

Severe Thunderstorm Warnings in New Jersey, 2017Severe Thunderstorm Warnings in Pennsylvania, 2017Severe Thunderstorm Warnings in Delaware, 2017Every severe thunderstorm warning in 2017

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