Alert archive / New Jersey / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 43, NWS Philadelphia/Mount Holly

April 21, 2020Burlington County, Monmouth County, Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Apr 21, 2020, 2:55 PM EDT for Burlington County, Monmouth County, Ocean County, New Jersey. It was in force for 35 min. 12 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Apr 21, 2020, 2:55 PM EDT (18:55 UTC)
Expired
Apr 21, 2020, 3:30 PM EDT
In force
35 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Burlington County, NJ, Monmouth County, NJ, Ocean County, NJ

What was reported inside it

TimeReportWhereRemark
Apr 21, 2:58 PM EDTTSTM WND DMGManasquan, NJDAMAGE TO TRAILERS AND SHEDS AT SEA GIRT TRAINING CENTER, TIME ESTIMATED FROM RADAR.
Apr 21, 3:00 PM EDTTSTM WND DMG1 N Brick, NJTREES AND WIRES INTO HOMES NEAR BRICK NJ, TIME ESTIMATED FROM RADAR.
Apr 21, 3:00 PM EDTTSTM WND DMG2 Ne Leisure Village Ea, NJHOOPER AVE & CEDAR BRIDGE AVE ARE CLOSED DUE TO WIRES DOWN.
Apr 21, 3:00 PM EDTTSTM WND GST 572 Ne Leisure Village Ea, NJNJ MESONET SITE REPORTS A 57 MPH WIND GUST.
Apr 21, 3:03 PM EDTTSTM WND DMG2 Ene Toms River, NJMULTIPLE TREES UPROOTED IN TOMS RIVER NEAR VAUGHN AVE AND N TUNESBROOK DR. TIME ESTIMATED FROM RADAR.
Apr 21, 3:04 PM EDTTSTM WND DMG1 Nw Brielle, NJDOWNED UTILITY POLE ON STATE HIGHWAY 35 SOUTH OF LAKEWOOD ROAD. TIME ESTIMATED FROM RADAR.
Apr 21, 3:04 PM EDTTSTM WND DMG3 N Ocean Gate, NJTREE DOWN ON STANDISH DR. IN BELLCREST AREA OF TOMS RIVER. TIME ESTIMATED FROM RADAR.
Apr 21, 3:04 PM EDTTSTM WND DMGManasquan, NJSEVERAL REPORTS OF TREES AND WIRES DOWN NEAR AND WEST OF MANASQUAN. TIME ESTIMATED FROM RADAR.
Apr 21, 3:04 PM EDTHAIL 0.51 E Brielle, NJREPORT FROM MPING: HALF-INCH (0.50 IN.).
Apr 21, 3:08 PM EDTTSTM WND DMGToms River, NJSEVERAL REPORTS OF POWER LINES AND TREE LIMBS DOWN IN THE TOMS RIVER AREA. TIME ESTIMATED FROM RADAR.
Apr 21, 3:08 PM EDTTSTM WND DMGToms River, NJSEVERAL REPORTS OF TREES AND WIRES DOWN IN TOMS RIVER. TIME ESTIMATED FROM RADAR.
Apr 21, 3:28 PM EDTTSTM WND GST 40Barnegat Light, NJBARNEGAT LIGHT MEASURES A 40 MPH WIND GUST.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 21, 1:27 PM EDTSevere Thunderstorm WatchSPC3 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 6.9 hours before the alert went out and 138 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 2020-04-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 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 2020-04-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 221 square meters per square second.19395878Sfc1 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
3 J/kg
Mixed-layer CIN
-125 J/kg
Mixed-layer LCL
846 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
221 m²/s²
0-3 km storm-relative helicity
296 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

152 
WUUS51 KPHI 211855
SVRPHI
NJC005-025-029-211930-
/O.NEW.KPHI.SV.W.0043.200421T1855Z-200421T1930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
255 PM EDT Tue Apr 21 2020

The National Weather Service in Mount Holly NJ has issued a

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

* Until 330 PM EDT.

* At 255 PM EDT, severe thunderstorms were located along a line
  extending from near Highlands to Pleasant Plains to Chatsworth,
  moving east at 55 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, Long Branch, Asbury Park, Lakewood, Howell, Barnegat,
  Tinton Falls, Red Bank, Beachwood, Manasquan, Highlands, Point
  Pleasant Beach, Seaside Heights, Lakehurst, Farmingdale, Surf City,
  Mantoloking, Allenwood, Elberon and Navesink.

This includes the following highways... Garden State Parkway between 
mile markers 61 and 111.
 Interstate 195 in New Jersey between mile markers 28 and 34.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Protecting yourself from immediate threats to life and safety shall
take priority.  Whenever possible, as long as it does not cause
greater harm, all COVID-19 protective action guidance should be
followed.

This is a DANGEROUS SITUATION. These storms are producing widespread 
wind damage across Monmouth County. SEEK SHELTER NOW inside a sturdy 
structure and stay away from windows! 
&&

LAT...LON 3962 7403 3974 7466 4001 7434 4042 7406
      4041 7398 4044 7398 4043 7397
TIME...MOT...LOC 1855Z 268DEG 48KT 4041 7393 4001 7421 3980 7450 

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

Deal
1 follow-up statement
621 
WWUS51 KPHI 211922
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
322 PM EDT Tue Apr 21 2020

NJC005-025-029-211932-
/O.EXP.KPHI.SV.W.0043.000000T0000Z-200421T1930Z/
Ocean NJ-Burlington NJ-Monmouth NJ-
322 PM EDT Tue Apr 21 2020

...THE SEVERE THUNDERSTORM WARNING FOR OCEAN...EAST CENTRAL
BURLINGTON AND SOUTHEASTERN MONMOUTH COUNTIES WILL EXPIRE AT 330 PM
EDT...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with these thunderstorms.

A Severe Thunderstorm Watch remains in effect until 500 PM EDT for
southern and central New Jersey.

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 3962 7403 3974 7466 4001 7434 4042 7406
      4041 7398 4044 7398 4043 7397
TIME...MOT...LOC 1922Z 268DEG 48KT 4042 7349 4002 7377 3981 7406 

$$

Deal

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 21, 3:34 AM EDTFreeze WarningPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more28 hr
Apr 21, 11:44 AM EDTCoastal Flood StatementPHIOcean5 hr
Apr 21, 12:23 PM EDTSpecial Weather StatementPHIMonmouth37 min
Apr 21, 1:04 PM EDTSevere Thunderstorm WarningPHIHunterdon, Warren26 min
Apr 21, 1:28 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Hunterdon, Mercer, Middlesex, Morris and 1 more32 min
Apr 21, 1:38 PM EDTSpecial Weather StatementPHICumberland, Salem52 min
Apr 21, 1:49 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Cumberland, Gloucester, Salem56 min
Apr 21, 1:59 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Hunterdon, Mercer, Middlesex, Monmouth and 3 more61 min
Apr 21, 2:04 PM EDTSevere Thunderstorm WarningPHICumberland56 min
Apr 21, 2:17 PM EDTSpecial Marine WarningPHI58 min
Apr 21, 2:24 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 2 more66 min
Apr 21, 3:04 PM EDTSpecial Marine WarningPHI116 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2020Every severe thunderstorm warning in 2020

Sources

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.