Tornado Warning 39, NWS Philadelphia/Mount Holly

Issued

Sep 1, 2021, 5:15 PM EDT (21:15 UTC)

Expired

Sep 1, 2021, 5:45 PM EDT

In force

30 min

Issued by

NWS Philadelphia/Mount Holly

Area

Storm-based polygon

Tornado

Radar indicated

Hail

0.75 in

Counties Delaware County, PA, Montgomery County, PA, Philadelphia County, PA

The Philadelphia radar (KDIX), 66 km from the middle of the area, began a volume at 21:17 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.

660 
WFUS51 KPHI 012115
TORPHI
PAC045-091-101-012145-
/O.NEW.KPHI.TO.W.0039.210901T2115Z-210901T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mount Holly NJ
515 PM EDT Wed Sep 1 2021

The National Weather Service in Mount Holly NJ has issued a

* Tornado Warning for...
  Southeastern Montgomery County in southeastern Pennsylvania...
  Philadelphia County in southeastern Pennsylvania...
  Eastern Delaware County in southeastern Pennsylvania...

* Until 545 PM EDT.
    
* At 515 PM EDT, a severe thunderstorm capable of producing a tornado
  was located over Folcroft, or 10 miles west of Gloucester City,
  moving northeast at 50 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  Philadelphia, Norristown, Chester, East Norriton, Yeadon,
  Conshohocken, Folcroft, Swarthmore, Jenkintown, Narberth, East
  Lansdowne, Rockledge, Wissinoming, Darby Township, Morris Park,
  Bryn Mawr, Trout Lake, Tacony, Broomall and Kensington.

This includes the following highways...
 Pennsylvania Turnpike between mile markers 331 and 337.
 Northeast Extension between mile markers 21 and 22.
 Interstate 95 in Pennsylvania between mile markers 5 and 10, and
between mile markers 21 and 29.
 Interstate 76 in Pennsylvania between mile markers 330 and 348.
 Interstate 676 in Pennsylvania between mile markers 0 and 1.
 Interstate 476 in Pennsylvania between mile markers 0 and 19.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3997 7510 3996 7513 3994 7514 3984 7535
      3988 7542 4015 7532 4008 7496
TIME...MOT...LOC 2115Z 220DEG 41KT 3989 7531 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

JEO

871 
WWUS51 KPHI 012123
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
523 PM EDT Wed Sep 1 2021

PAC045-091-101-012145-
/O.CON.KPHI.TO.W.0039.000000T0000Z-210901T2145Z/
Montgomery PA-Philadelphia PA-Delaware PA-
523 PM EDT Wed Sep 1 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM EDT FOR
SOUTHEASTERN MONTGOMERY...NORTHWESTERN PHILADELPHIA AND NORTHEASTERN
DELAWARE COUNTIES...
    
At 522 PM EDT, a severe thunderstorm capable of producing a tornado
was located over East Lansdowne, or near Philadelphia, moving
northeast at 45 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Philadelphia, Norristown, East Norriton, Yeadon, Conshohocken,
Jenkintown, Narberth, East Lansdowne, Rockledge, Morris Park,
Germantown, Bryn Mawr, Trout Lake, Radnor Township, Broomall,
Plymouth Meeting, Roxborough, Chestnut Hill, Drexel Hill and Darby
Township.

This includes the following highways...
 Pennsylvania Turnpike between mile markers 331 and 337.
 Northeast Extension between mile markers 21 and 22.
 Interstate 76 in Pennsylvania between mile markers 330 and 343.
 Interstate 476 in Pennsylvania between mile markers 5 and 19.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4000 7516 3997 7520 3990 7531 3995 7540
      4015 7532 4010 7506
TIME...MOT...LOC 2122Z 220DEG 41KT 3996 7524 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

JEO

889 
WWUS51 KPHI 012142 RRA
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
542 PM EDT Wed Sep 1 2021

PAC045-091-101-012152-
/O.EXP.KPHI.TO.W.0039.000000T0000Z-210901T2145Z/
Montgomery PA-Philadelphia PA-Delaware PA-
542 PM EDT Wed Sep 1 2021

...THE TORNADO WARNING FOR SOUTHEASTERN MONTGOMERY...NORTHWESTERN
PHILADELPHIA AND NORTHEASTERN DELAWARE COUNTIES WILL EXPIRE AT 545 PM
EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

A Tornado Watch remains in effect until 1000 PM EDT for southeastern
Pennsylvania.

LAT...LON 4000 7516 3997 7520 3990 7531 3995 7540
      4015 7532 4010 7506
TIME...MOT...LOC 2142Z 220DEG 41KT 4015 7516 

$$

JEO

Tornado Warnings in Pennsylvania, 2021Every tornado warning in 2021Tornadoes in 2021

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.