Alert archive / New Jersey / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 86, NWS Philadelphia/Mount Holly

June 14, 2021Monmouth County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 14, 2021, 9:58 PM EDT for Monmouth County, New Jersey. It was in force for 32 min. 1 report 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
Jun 14, 2021, 9:58 PM EDT (01:58 UTC)
Expired
Jun 14, 2021, 10:30 PM EDT
In force
32 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Monmouth County, NJ

What was reported inside it

TimeReportWhereRemark
Jun 14, 10:08 PM EDTTSTM WND DMGAllenhurst, NJDOWNED WIRES NEAR PARK AVENUE. TIME ESTIMATED FROM RADAR.

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
Jun 14, 2:06 PM EDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 2.0 hours before the alert went out and 127 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 00:00Z on 2021-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 2021-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 120 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1380 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
120 m²/s²
0-3 km storm-relative helicity
157 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

884 
WUUS51 KPHI 150158
SVRPHI
NJC025-150230-
/O.NEW.KPHI.SV.W.0086.210615T0158Z-210615T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
958 PM EDT Mon Jun 14 2021

The National Weather Service in Mount Holly NJ has issued a

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

* Until 1030 PM EDT.

* At 958 PM EDT, a severe thunderstorm was located over Asbury Park,
  moving east at 30 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...
  Long Branch, Asbury Park, Howell, Tinton Falls, Manasquan, Point
  Pleasant Beach, Farmingdale, Allenwood, Elberon, Collingwood Park,
  Freewood Acres, Ramtown, Lincroft, Point Pleasant, Eatontown, West
  Long Branch, Rumson, Little Silver, Oceanport and Neptune City.

This includes the following highways...
 Interstate 195 in New Jersey between mile markers 27 and 34.
 Garden State Parkway between mile markers 95 and 109.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4035 7396 4030 7396 4008 7402 4009 7404
      4010 7404 4009 7406 4011 7410 4014 7411
      4012 7413 4016 7425 4032 7414
TIME...MOT...LOC 0158Z 253DEG 25KT 4024 7403 

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

CMS
2 follow-up statements
574 
WWUS51 KPHI 150208
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
1008 PM EDT Mon Jun 14 2021

NJC025-150230-
/O.CON.KPHI.SV.W.0086.000000T0000Z-210615T0230Z/
Monmouth NJ-
1008 PM EDT Mon Jun 14 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT
FOR SOUTHEASTERN MONMOUTH COUNTY...

At 1008 PM EDT, a severe thunderstorm was located over Elberon, or
near Long Branch, moving east at 30 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...
Long Branch, Asbury Park, Howell, Tinton Falls, Manasquan, Point
Pleasant Beach, Farmingdale, Allenwood, Elberon, Collingwood Park,
Freewood Acres, Ramtown, Point Pleasant, Eatontown, West Long Branch,
Little Silver, Oceanport, Neptune City, Brielle and Spring Lake
Heights.

This includes the following highways...
 Interstate 195 in New Jersey between mile markers 27 and 34.
 Garden State Parkway between mile markers 95 and 108.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4035 7396 4029 7396 4008 7402 4009 7404
      4010 7404 4009 7407 4011 7410 4014 7411
      4012 7413 4016 7425 4026 7418 4033 7406
TIME...MOT...LOC 0208Z 253DEG 25KT 4026 7394 

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

CMS
242 
WWUS51 KPHI 150225
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
1025 PM EDT Mon Jun 14 2021

NJC025-150234-
/O.EXP.KPHI.SV.W.0086.000000T0000Z-210615T0230Z/
Monmouth NJ-
1025 PM EDT Mon Jun 14 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MONMOUTH COUNTY
WILL EXPIRE AT 1030 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.  However, gusty 
winds and heavy rain are still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
central and southern New Jersey.

LAT...LON 4035 7396 4029 7396 4008 7402 4009 7404
      4010 7404 4009 7407 4011 7410 4014 7411
      4012 7413 4016 7425 4026 7418 4033 7406
TIME...MOT...LOC 0224Z 253DEG 25KT 4029 7380 

$$

CMS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 8:08 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Middlesex, Monmouth, Somerset52 min
Jun 14, 8:34 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester41 min
Jun 14, 8:55 PM EDTSevere Thunderstorm WarningPHIGloucester50 min
Jun 14, 9:11 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester, Mercer, Middlesex, Monmouth and 1 more49 min
Jun 14, 9:12 PM EDTAreal Flood AdvisoryPHIBurlington, Camden, Gloucester, Mercer, Middlesex, Monmouth and 1 more74 min
Jun 14, 9:17 PM EDTFlash Flood WarningPHIBurlington, Camden3 hr
Jun 14, 9:29 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester46 min
Jun 14, 9:54 PM EDTAreal Flood AdvisoryPHIMonmouth97 min
Jun 14, 10:01 PM EDTSpecial Marine WarningPHI89 min
Jun 14, 10:07 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Gloucester, Ocean53 min
Jun 14, 10:51 PM EDTSpecial Marine WarningPHI114 min
Jun 14, 11:07 PM EDTSpecial Marine WarningPHI113 min
Jun 14, 11:21 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Ocean39 min
Jun 14, 11:42 PM EDTSevere Thunderstorm WarningPHIAtlantic, Cumberland, Gloucester, Salem63 min
Jun 14, 11:47 PM EDTAreal Flood AdvisoryPHIAtlantic, Burlington, Cape May, Cumberland, Ocean, Salem118 min
Jun 15, 12:04 AM EDTSpecial Marine WarningPHI116 min
Jun 15, 12:12 AM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Gloucester51 min
Jun 15, 1:00 AM EDTSpecial Marine WarningPHI88 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2021Every severe thunderstorm warning in 2021

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.