Alert archive / New Jersey / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 371, NWS Philadelphia/Mount Holly

August 19, 20195 counties in New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 19, 2019, 5:03 PM EDT for 5 counties in New Jersey. It was in force for 57 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
Aug 19, 2019, 5:03 PM EDT (21:03 UTC)
Expired
Aug 19, 2019, 6:00 PM EDT
In force
57 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 19 km from the middle of the area, began a volume at 21:06 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

Brookhaven, NY (KOKX), launched 12:00Z, 9.1 hours before the alert went out and 166 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, Brookhaven, NY at 12:00Z on 2019-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1215 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, Brookhaven, NY at 12:00Z on 2019-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 square meters per square second.1939Sfc1 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
1215 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
841 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
39 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

143 
WUUS51 KPHI 192103
SVRPHI
NJC001-005-007-015-029-192200-
/O.NEW.KPHI.SV.W.0371.190819T2103Z-190819T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
503 PM EDT Mon Aug 19 2019

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Northwestern Atlantic County in southern New Jersey...
  Central Ocean County in southern New Jersey...
  Southeastern Camden County in southern New Jersey...
  East central Gloucester County in southern New Jersey...
  Southeastern Burlington County in southern New Jersey...

* Until 600 PM EDT.

* At 503 PM EDT, severe thunderstorms were located along a line
  extending from near Beachwood to near Clayton, moving southeast at
  15 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Minor damage to vehicles is possible. Wind damage to 
           roofs, siding, trees, and power lines is possible.

* Locations impacted include...
  Toms River, Barnegat, Glassboro, Hammonton, Beachwood, Clayton,
  Berlin, Tabernacle, Shamong, Buena, Egg Harbor City, Tuckerton,
  Seaside Heights, Weymouth, Chesilhurst, Surf City, Port Republic,
  Mantoloking, Elwood-Magnolia and Atsion.

This includes the following highways...
 Atlantic City Expressway between mile markers 16 and 41.
 Garden State Parkway between mile markers 50 and 88.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Frequent cloud to ground lightning is occurring with this storm, and
the storm will affect the beaches. For your safety, immediately move
off the beach and seek shelter indoors.

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

&&

LAT...LON 4006 7412 4005 7405 3979 7410 4001 7409
      4001 7411 3975 7420 3974 7417 3976 7410
      3961 7420 3965 7423 3945 7476 3970 7517
TIME...MOT...LOC 2103Z 296DEG 15KT 3987 7422 3966 7504 

HAIL...1.00IN
WIND...60MPH
 
$$

Davis
2 follow-up statements
223 
WWUS51 KPHI 192132 RRA
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
532 PM EDT Mon Aug 19 2019

NJC001-005-007-015-029-192200-
/O.CON.KPHI.SV.W.0371.000000T0000Z-190819T2200Z/
Atlantic NJ-Ocean NJ-Camden NJ-Gloucester NJ-Burlington NJ-
532 PM EDT Mon Aug 19 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR NORTHWESTERN ATLANTIC...CENTRAL OCEAN...SOUTHEASTERN CAMDEN...
EAST CENTRAL GLOUCESTER AND SOUTHEASTERN BURLINGTON COUNTIES...

At 531 PM EDT, severe thunderstorms were located along a line
extending from 8 miles northeast of Barnegat to 6 miles north of
Buena, moving southeast at 15 mph.

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

SOURCE...Radar indicated.

IMPACT...Minor damage to vehicles is possible. Wind damage to roofs, 
         siding, trees, and power lines is possible.

Locations impacted include...
Toms River, Barnegat, Hammonton, Beachwood, Shamong, Egg Harbor City,
Tuckerton, Seaside Heights, Chesilhurst, Surf City, Port Republic,
Sicklerville, Elwood-Magnolia, Atsion, Wading River, Holiday City
South, Warren Grove, Wharton State Forest, Bamber Lake and
Brookville.

This includes the following highways...
 Atlantic City Expressway between mile markers 28 and 39.
 Garden State Parkway between mile markers 50 and 82.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3981 7454 4003 7408 3979 7410 4001 7409
      4001 7411 3975 7420 3974 7417 3976 7410
      3961 7420 3965 7423 3951 7461 3971 7503
TIME...MOT...LOC 2131Z 296DEG 15KT 3982 7408 3961 7490 

HAIL...1.00IN
WIND...60MPH
 
$$

Davis
223 
WWUS51 KPHI 192150
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
550 PM EDT Mon Aug 19 2019

NJC001-005-007-015-029-192200-
/O.EXP.KPHI.SV.W.0371.000000T0000Z-190819T2200Z/
Atlantic NJ-Ocean NJ-Camden NJ-Gloucester NJ-Burlington NJ-
550 PM EDT Mon Aug 19 2019

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN ATLANTIC...
CENTRAL OCEAN...SOUTHEASTERN CAMDEN...EAST CENTRAL GLOUCESTER AND
SOUTHEASTERN BURLINGTON COUNTIES WILL EXPIRE AT 600 PM EDT...
    
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning will
be allowed to expire.  However gusty winds are still possible with
these thunderstorms.

LAT...LON 3981 7454 4003 7408 3979 7410 4001 7409
      4001 7411 3975 7420 3974 7417 3976 7410
      3961 7420 3965 7423 3951 7461 3971 7503
TIME...MOT...LOC 2150Z 296DEG 15KT 3979 7399 3958 7481 

$$

Davis

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 19, 1:00 PM EDTSpecial Marine WarningPHI2 hr
Aug 19, 1:28 PM EDTSpecial Weather StatementPHIOcean47 min
Aug 19, 1:40 PM EDTSpecial Marine WarningPHI95 min
Aug 19, 1:46 PM EDTSpecial Weather StatementPHICape May44 min
Aug 19, 1:53 PM EDTSpecial Marine WarningPHI97 min
Aug 19, 2:48 PM EDTAreal Flood AdvisoryPHIOcean117 min
Aug 19, 2:54 PM EDTSpecial Weather StatementPHISussex51 min
Aug 19, 3:04 PM EDTSpecial Weather StatementPHIOcean41 min
Aug 19, 3:52 PM EDTSpecial Marine WarningPHI53 min
Aug 19, 3:56 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden37 min
Aug 19, 3:58 PM EDTSevere Thunderstorm WarningPHIMiddlesex, Monmouth47 min
Aug 19, 4:03 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden42 min
Aug 19, 4:05 PM EDTSevere Thunderstorm WarningPHIOcean40 min
Aug 19, 4:21 PM EDTSevere Thunderstorm WarningPHIMonmouth39 min
Aug 19, 4:28 PM EDTSpecial Marine WarningPHI97 min
Aug 19, 4:30 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Monmouth, Ocean45 min
Aug 19, 4:45 PM EDTSpecial Marine WarningPHI60 min
Aug 19, 4:48 PM EDTAreal Flood AdvisoryPHIOcean3 hr
Aug 19, 4:52 PM EDTSpecial Weather StatementPHIAtlantic23 min
Aug 19, 4:54 PM EDTSevere Thunderstorm WarningPHIMonmouth, Ocean40 min
Aug 19, 5:11 PM EDTSpecial Marine WarningPHI2 hr
Aug 19, 5:29 PM EDTAreal Flood AdvisoryPHIAtlantic, Burlington, Ocean4 hr
Aug 19, 5:35 PM EDTAreal Flood AdvisoryPHIOcean115 min
Aug 19, 5:40 PM EDTSpecial Marine WarningPHI86 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2019Every severe thunderstorm warning in 2019

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.