Alert archive / New Jersey / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 348, NWS Philadelphia/Mount Holly

August 8, 2019Monmouth County, Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 8, 2019, 5:46 PM EDT for Monmouth County, Ocean County, New Jersey. It was in force for 23 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 8, 2019, 5:46 PM EDT (21:46 UTC)
Expired
Aug 8, 2019, 6:09 PM EDT
In force
23 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Monmouth County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 24 km from the middle of the area, began a volume at 21:45 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, 9.8 hours before the alert went out and 145 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 2019-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 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 2019-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -11 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
7 J/kg
Mixed-layer CIN
-131 J/kg
Mixed-layer LCL
1037 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
-11 m²/s²
0-3 km storm-relative helicity
22 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

821 
WUUS51 KPHI 082146
SVRPHI
NJC025-029-082230-
/O.NEW.KPHI.SV.W.0348.190808T2146Z-190808T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
546 PM EDT Thu Aug 8 2019

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Northern Ocean County in southern New Jersey...
  Southeastern Monmouth County in central New Jersey...

* Until 630 PM EDT.

* At 546 PM EDT, severe thunderstorms were located along a line
  extending from near Jackson to Cedar Glen Lakes, moving east at 20
  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...
  Toms River, Lakewood, Jackson, Beachwood, Manasquan, Point Pleasant
  Beach, Seaside Heights, Lakehurst, Mantoloking, Leisure Village,
  Allenwood, Holiday City South, Pleasant Plains, Cedar Glen West,
  Jacksons Mills, Leisure Village East, Cassville, Holiday
  City-Berkeley, Bamber Lake and Ramtown.

This includes the following highways...
 Garden State Parkway between mile markers 75 and 98.
 Interstate 195 in New Jersey between mile markers 24 and 26, and
between mile markers 31 and 34.

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.

&&

LAT...LON 4007 7404 4005 7409 4005 7405 4001 7405
      4001 7408 3998 7406 3981 7409 3999 7407
      4001 7409 3999 7414 3999 7411 3995 7411
      3993 7415 3992 7411 3983 7416 3992 7447
      3999 7450 4015 7438 4018 7401
TIME...MOT...LOC 2146Z 274DEG 19KT 4011 7427 3994 7441 

HAIL...0.75IN
WIND...60MPH
 
$$

SFJ
2 follow-up statements
761 
WWUS51 KPHI 082200
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
600 PM EDT Thu Aug 8 2019

NJC025-029-082230-
/O.CON.KPHI.SV.W.0348.000000T0000Z-190808T2230Z/
Ocean NJ-Monmouth NJ-
600 PM EDT Thu Aug 8 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR NORTHEASTERN OCEAN AND SOUTHEASTERN MONMOUTH COUNTIES...

At 600 PM EDT, severe thunderstorms were located along a line
extending from Ramtown to Pine Ridge At Crestwood, moving east at 20
mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Damage to roofs, siding, trees, and power lines is 
         possible.

Locations impacted include...
Toms River, Lakewood, Jackson, Beachwood, Manasquan, Point Pleasant
Beach, Seaside Heights, Lakehurst, Mantoloking, Leisure Village,
Allenwood, Holiday City South, Pleasant Plains, Cedar Glen West,
Leisure Village East, Holiday City-Berkeley, Bamber Lake, Ramtown,
Brick Township and Pine Ridge At Crestwood.

This includes the following highways...
 Garden State Parkway between mile markers 75 and 98.
 Interstate 195 in New Jersey between mile markers 25 and 27, and
between mile markers 30 and 34.

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.

&&

LAT...LON 4007 7404 4005 7409 4005 7405 4001 7405
      4001 7408 3998 7406 3981 7409 3999 7407
      4001 7409 3999 7414 3999 7411 3995 7411
      3993 7415 3992 7411 3983 7416 3990 7440
      4016 7428 4018 7401
TIME...MOT...LOC 2200Z 274DEG 19KT 4011 7418 3994 7432 

HAIL...<.75IN
WIND...60MPH
 
$$

SFJ
240 
WWUS51 KPHI 082209
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
609 PM EDT Thu Aug 8 2019

NJC025-029-082219-
/O.CAN.KPHI.SV.W.0348.000000T0000Z-190808T2230Z/
Ocean NJ-Monmouth NJ-
609 PM EDT Thu Aug 8 2019

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN OCEAN AND
SOUTHEASTERN MONMOUTH COUNTIES IS CANCELLED...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been cancelled.

LAT...LON 4007 7404 4005 7409 4005 7405 4001 7405
      4001 7408 3998 7406 3981 7409 3999 7407
      4001 7409 3999 7414 3999 7411 3995 7411
      3993 7415 3992 7411 3983 7416 3990 7440
      4016 7428 4018 7401
TIME...MOT...LOC 2208Z 274DEG 19KT 4011 7412 3994 7426 

$$

SFJ

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 8, 3:56 PM EDTAreal Flood AdvisoryPHIHunterdon, Mercer, Middlesex, Monmouth, Somerset104 min
Aug 8, 5:01 PM EDTSpecial Weather StatementPHIBurlington29 min
Aug 8, 5:50 PM EDTSpecial Marine WarningPHI20 min
Aug 8, 6:14 PM EDTSpecial Weather StatementPHISussex, Warren31 min
Aug 8, 6:39 PM EDTSpecial Weather StatementPHISussex, Warren36 min
Aug 8, 7:00 PM EDTSpecial Marine WarningPHI60 min
Aug 8, 7:01 PM EDTSevere Thunderstorm WarningPHIHunterdon, Morris, Somerset, Sussex, Warren44 min
Aug 8, 7:12 PM EDTSpecial Weather StatementPHIHunterdon33 min
Aug 8, 7:40 PM EDTSpecial Weather StatementPHISalem35 min
Aug 8, 7:49 PM EDTSpecial Weather StatementPHIMorris26 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.