Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 88, NWS Philadelphia/Mount Holly

June 14, 2022Chester County, Delaware County, Pennsylvania; Gloucester County, Salem County, New Jersey; New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 14, 2022, 7:14 AM EDT for Chester County, Delaware County, Pennsylvania; Gloucester County, Salem County, New Jersey; New Castle County, Delaware. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 14, 2022, 7:14 AM EDT (11:14 UTC)
Expired
Jun 14, 2022, 8:00 AM EDT
In force
46 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
60.0 mph

Counties New Castle County, DE, Gloucester County, NJ, Salem County, NJ, Chester County, PA, Delaware County, PA

The radar

The Philadelphia radar (KDIX), 81 km from the middle of the area, began a volume at 11:16 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 nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 00:00Z, 11.2 hours before the alert went out and 212 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Wallops Is Stn, VA at 00:00Z on 2022-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1216 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Wallops Is Stn, VA at 00:00Z on 2022-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 96 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1216 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
1271 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
96 m²/s²
0-3 km storm-relative helicity
135 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.8

Open this sounding in Storm Lab

The text

As transmitted.

469 
WUUS51 KPHI 141114
SVRPHI
DEC003-NJC015-033-PAC029-045-141200-
/O.NEW.KPHI.SV.W.0088.220614T1114Z-220614T1200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
714 AM EDT Tue Jun 14 2022

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Northern New Castle County in northern Delaware...
  Northwestern Salem County in southern New Jersey...
  Northwestern Gloucester County in southern New Jersey...
  South central Chester County in southeastern Pennsylvania...
  Southern Delaware County in southeastern Pennsylvania...

* Until 800 AM EDT.

* At 714 AM EDT, a severe thunderstorm was located over Hockessin, or
  7 miles west of Wilmington, moving east at 45 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...
  Wilmington, Newark, Chester, Deptford, West Deptford, Glassboro,
  Pennsville, Bellmawr, Woodbury, Pitman, Carneys Point, Folcroft,
  Elsmere, Paulsboro, Kennett Square, New Castle, Penns Grove,
  Westville, Woodbury Heights and National Park.

This includes the following highways...
 New Jersey Turnpike near exit 2.
 Interstate 95 in Pennsylvania between mile markers 0 and 12.
 Interstate 95 in Delaware between mile markers 8 and 23.
 Interstate 295 in New Jersey near mile marker 0, and between mile
markers 2 and 26.
 Interstate 476 in Pennsylvania near mile marker 0.

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.

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

&&

LAT...LON 3987 7578 3988 7526 3987 7522 3987 7521
      3988 7519 3988 7513 3986 7510 3969 7506
      3968 7576
TIME...MOT...LOC 1114Z 266DEG 37KT 3978 7567 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MPS
2 follow-up statements
484 
WWUS51 KPHI 141131
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
731 AM EDT Tue Jun 14 2022

PAC029-141141-
/O.CAN.KPHI.SV.W.0088.000000T0000Z-220614T1200Z/
Chester PA-
731 AM EDT Tue Jun 14 2022

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL CHESTER COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3986 7555 3987 7512 3984 7509 3969 7506
      3968 7555
TIME...MOT...LOC 1131Z 272DEG 36KT 3977 7546 

$$

DEC003-NJC015-033-PAC045-141200-
/O.CON.KPHI.SV.W.0088.000000T0000Z-220614T1200Z/
New Castle DE-Salem NJ-Gloucester NJ-Delaware PA-
731 AM EDT Tue Jun 14 2022

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 AM EDT
FOR NORTHEASTERN NEW CASTLE...NORTHWESTERN SALEM...NORTHWESTERN
GLOUCESTER AND SOUTHERN DELAWARE COUNTIES...

At 731 AM EDT, a severe thunderstorm was located near Penns Grove, or
near Wilmington, moving east at 40 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...
Wilmington, Chester, Deptford, West Deptford, Glassboro, Pennsville,
Bellmawr, Woodbury, Pitman, Carneys Point, Paulsboro, New Castle,
Penns Grove, Westville, Woodbury Heights, National Park, Swedesboro,
Arden, Elam and Beckett.

This includes the following highways...
 New Jersey Turnpike near exit 2.
 Interstate 95 in Pennsylvania between mile markers 0 and 6.
 Interstate 95 in Delaware between mile markers 16 and 23.
 Interstate 295 in New Jersey near mile marker 0, and between mile
markers 2 and 25.

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.

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

&&

LAT...LON 3986 7555 3987 7512 3984 7509 3969 7506
      3968 7555
TIME...MOT...LOC 1131Z 272DEG 36KT 3977 7546 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MPS
491 
WWUS51 KPHI 141151
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
751 AM EDT Tue Jun 14 2022

DEC003-NJC015-033-PAC045-141200-
/O.EXP.KPHI.SV.W.0088.000000T0000Z-220614T1200Z/
New Castle DE-Salem NJ-Gloucester NJ-Delaware PA-
751 AM EDT Tue Jun 14 2022

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN NEW CASTLE...
NORTHWESTERN SALEM...NORTHWESTERN GLOUCESTER AND SOUTHERN DELAWARE
COUNTIES WILL EXPIRE AT 800 AM EDT...
                
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, gusty 
winds are still possible with this thunderstorm.

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 7555 3987 7512 3984 7509 3969 7506
      3968 7555
TIME...MOT...LOC 1150Z 267DEG 35KT 3979 7522 

$$

MPS

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 14, 6:37 AM EDTSpecial Weather StatementPHIChester68 min
Jun 14, 7:34 AM EDTSpecial Weather StatementPHIDelaware, Montgomery26 min
Jun 14, 7:53 AM EDTSpecial Weather StatementPHIPhiladelphia37 min
Jun 14, 5:31 AM EDTCoastal Flood AdvisoryPHIAtlantic, Burlington, Cape May, Middlesex, Monmouth, Ocean19 hr
Jun 14, 7:00 AM EDTSpecial Marine WarningPHI60 min
Jun 14, 8:09 AM EDTSevere Thunderstorm WarningPHIBurlington, Camden26 min
Jun 14, 8:20 AM EDTSpecial Weather StatementPHIBurlington25 min
Jun 14, 8:41 AM EDTSpecial Weather StatementPHICape May34 min
Jun 14, 8:43 AM EDTSpecial Weather StatementPHIOcean32 min
Jun 14, 10:30 AM EDTSevere Thunderstorm WarningPHISussex45 min
Jun 14, 11:27 AM EDTAreal Flood AdvisoryPHIKent, Sussex2 hr

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2022Severe Thunderstorm Warnings in New Jersey, 2022Severe Thunderstorm Warnings in Delaware, 2022Every severe thunderstorm warning in 2022

Sources

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