Alert archive / New Jersey / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 62, NWS Philadelphia/Mount Holly

June 21, 2017Burlington County, Monmouth County, Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 21, 2017, 5:19 PM EDT for Burlington County, Monmouth County, Ocean County, New Jersey. It was in force for 41 min. 7 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
Jun 21, 2017, 5:19 PM EDT (21:19 UTC)
Expired
Jun 21, 2017, 6:00 PM EDT
In force
41 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

The radar

The Philadelphia radar (KDIX), 13 km from the middle of the area, began a volume at 21:22 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.

What was reported inside it

TimeReportWhereRemark
Jun 21, 5:20 PM EDTTSTM WND DMGNorth Hanover Twp, NJTOP HALF BLOWN OFF LARGE MAGNOLIA TREE. TIME ESTIMATED FROM RADAR.
Jun 21, 5:27 PM EDTTSTM WND DMGCream Ridge, NJTREES AND POWERLINES DOWN... TIME ESTIMATED
Jun 21, 5:28 PM EDTTSTM WND DMGNew Egypt, NJTRESS AND POWERLINES DOWN... TIME ESTIMATED
Jun 21, 5:33 PM EDTTSTM WND DMGJackson Twp, NJLARGE TREES DOWN ON HOUSE AND A CAR... TIME ESTIMATED
Jun 21, 5:33 PM EDTTSTM WND DMGJackson Twp, NJTREES DOWN AND SNAPPED... TIME ESTIMATED
Jun 21, 5:33 PM EDTTSTM WND DMGJackson Twp, NJTREES DOWN ON HOUSE AND A CAR... TIME ESTIMATED
Jun 21, 5:54 PM EDTTSTM WND DMGPoint Pleasant Beach, NJTREE FELL ON A CAR... TIME ESTIMATED

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

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 9.3 hours before the alert went out and 157 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 2017-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 23 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 2017-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 square meters per square second.1939587897117Sfc1 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
23 J/kg
Mixed-layer CIN
-90 J/kg
Mixed-layer LCL
1706 m above ground
0-6 km bulk shear
67 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
97 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

As transmitted.

152 
WUUS51 KPHI 212119
SVRPHI
NJC005-025-029-212200-
/O.NEW.KPHI.SV.W.0062.170621T2119Z-170621T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
519 PM EDT WED JUN 21 2017

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Northern Ocean County in southern New Jersey...
  Northeastern Burlington County in southern New Jersey...
  Southern Monmouth County in central New Jersey...

* Until 600 PM EDT

* At 518 PM EDT, severe thunderstorms were located along a line
  extending from Cream Ridge to Wrightstown, moving east at 45 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...Expect damage to trees and power lines. 

* Locations impacted include...
  Toms River, Lakewood, Jackson, Beachwood, Manasquan, Point Pleasant
  Beach, Seaside Heights, Lakehurst, Wrightstown, Mantoloking,
  Allenwood, Six Flags Theme Park, Georgetown, Cassville, Vista
  Center, Brick Township, Pine Ridge At Crestwood, Columbus, Leisure
  Village West-Pine Lake Park and Leisure Village.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3985 7407 4010 7481 4014 7465 4014 7459
      4018 7456 4018 7400
TIME...MOT...LOC 2118Z 284DEG 46KT 4014 7451 4005 7463 

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

JRK
1 follow-up statement
091 
WWUS51 KPHI 212140
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
540 PM EDT WED JUN 21 2017

NJC005-212150-
/O.CAN.KPHI.SV.W.0062.000000T0000Z-170621T2200Z/
Burlington NJ-
540 PM EDT WED JUN 21 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BURLINGTON COUNTY
IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

LAT...LON 3985 7407 3998 7447 4001 7452 4012 7436
      4018 7419 4018 7400
TIME...MOT...LOC 2140Z 282DEG 40KT 4012 7421 3999 7444 

$$

NJC025-029-212200-
/O.CON.KPHI.SV.W.0062.000000T0000Z-170621T2200Z/
Ocean NJ-Monmouth NJ-
540 PM EDT WED JUN 21 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR NORTHERN OCEAN AND SOUTHEASTERN MONMOUTH COUNTIES...

At 540 PM EDT, severe thunderstorms were located along a line
extending from Lakewood to near Cedar Glen Lakes, moving east at 45
mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...Expect damage to trees and power lines. 

Locations impacted include...
Toms River, Lakewood, Jackson, Beachwood, Manasquan, Point Pleasant
Beach, Seaside Heights, Lakehurst, Mantoloking, Leisure Village,
Allenwood, Dover Beaches North, Holiday City South, Pleasant Plains,
Cedar Glen West, Leisure Village East, Dover Beaches South, Holiday
City-Berkeley, Ramtown and Brick Township.

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 3985 7407 3998 7447 4001 7452 4012 7436
      4018 7419 4018 7400
TIME...MOT...LOC 2140Z 282DEG 40KT 4012 7421 3999 7444 

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

JRK

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 21, 4:21 PM EDTSpecial Weather StatementPHIHunterdon39 min
Jun 21, 4:28 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester47 min
Jun 21, 5:03 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Gloucester, Ocean42 min
Jun 21, 5:36 PM EDTSpecial Marine WarningPHI84 min
Jun 21, 5:38 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Ocean37 min
Jun 21, 5:54 PM EDTSevere Thunderstorm WarningPHIMonmouth, Ocean26 min
Jun 21, 6:03 PM EDTSpecial Marine WarningPHI42 min
Jun 21, 6:25 PM EDTSpecial Marine WarningPHI95 min
Jun 21, 6:27 PM EDTSpecial Weather StatementPHICumberland, Salem33 min
Jun 21, 6:31 PM EDTSevere Thunderstorm WarningPHIAtlantic, Cumberland, Gloucester, Salem44 min
Jun 21, 6:52 PM EDTSpecial Marine WarningPHI53 min
Jun 21, 6:57 PM EDTSevere Thunderstorm WarningPHICumberland48 min
Jun 21, 7:05 PM EDTSpecial Weather StatementPHICape May25 min
Jun 21, 7:11 PM EDTSevere Thunderstorm WarningPHIAtlantic, Cape May, Cumberland64 min
Jun 21, 7:17 PM EDTSpecial Marine WarningPHI88 min
Jun 21, 7:56 PM EDTSpecial Marine WarningPHI94 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2017Every severe thunderstorm warning in 2017

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; radar from the NEXRAD Level II archive.