Alert archive / New Jersey / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 72, NWS Philadelphia/Mount Holly

June 24, 20176 counties in New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 24, 2017, 7:19 AM EDT for 6 counties in New Jersey. It was in force for 56 min. 2 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 24, 2017, 7:19 AM EDT (11:19 UTC)
Expired
Jun 24, 2017, 8:15 AM EDT
In force
56 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
60.0 mph

Counties Atlantic County, NJ, Burlington County, NJ, Cape May County, NJ, Cumberland County, NJ, Monmouth County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 57 km from the middle of the area, began a volume at 11:21 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 24, 7:20 AM EDTTSTM WND DMGFreewood Acres, NJSEVERAL BUILDING DAMAGED AND CARS OVERTURNED.
Jun 24, 7:56 AM EDTMARINE TSTM WIND 40West Atlantic City, NJ

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

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 00:00Z, 11.3 hours before the alert went out and 184 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, Wallops Is Stn, VA at 00:00Z on 2017-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 760 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, Wallops Is Stn, VA at 00:00Z on 2017-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 180 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
760 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
1142 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
180 m²/s²
0-3 km storm-relative helicity
217 m²/s²
Significant tornado parameter
0.6
Supercell composite
4.6

Open this sounding in Storm Lab

The text

As transmitted.

609 
WUUS51 KPHI 241119
SVRPHI
NJC001-005-009-011-025-029-241215-
/O.NEW.KPHI.SV.W.0072.170624T1119Z-170624T1215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
719 AM EDT SAT JUN 24 2017

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Atlantic County in southern New Jersey...
  Southeastern Cumberland County in southern New Jersey...
  Ocean County in southern New Jersey...
  Cape May County in southern New Jersey...
  Southeastern Burlington County in southern New Jersey...
  South central Monmouth County in central New Jersey...

* Until 815 AM EDT

* At 718 AM EDT, severe thunderstorms were located along a line
  extending from near Jackson to near Wharton State Forest to near
  Bivalve, moving southeast at 40 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

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

* Locations impacted include...
  Toms River, Atlantic City, Ocean City, Cumberland, Lakewood,
  Jackson, Barnegat, Pleasantville, Beachwood, Somers Point, Ventnor
  City, Brigantine, Northfield, Absecon, Margate City, Point Pleasant
  Beach, Egg Harbor City, North Wildwood, Tuckerton and Wildwood
  Crest.

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 3969 7410 3942 7430 3919 7462 3894 7484
      3903 7497 3915 7492 3919 7508 3917 7513
      3972 7464 4021 7432 4008 7402
TIME...MOT...LOC 1118Z 305DEG 33KT 4011 7428 3968 7456 3917 7502 

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

MPS
2 follow-up statements
879 
WWUS51 KPHI 241159
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
759 AM EDT SAT JUN 24 2017

NJC001-005-009-011-025-029-241215-
/O.CON.KPHI.SV.W.0072.000000T0000Z-170624T1215Z/
Atlantic NJ-Cumberland NJ-Ocean NJ-Cape May NJ-Burlington NJ-
Monmouth NJ-
759 AM EDT SAT JUN 24 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 AM EDT
FOR SOUTHEASTERN ATLANTIC...SOUTHEASTERN CUMBERLAND...OCEAN...CAPE
MAY...SOUTHEASTERN BURLINGTON AND SOUTH CENTRAL MONMOUTH COUNTIES...

At 757 AM EDT, severe thunderstorms were located along a line
extending from near Mantoloking to near Tuckerton to Avalon, moving
southeast at 30 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. These storms have a history of producing 
         wind damage in portions of southern New Jersey. A wind gust 
         of 54 mph occurred at Millville Airport as this line moved 
         through.

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

Locations impacted include...
Toms River, Atlantic City, Ocean City, Lakewood, Jackson, Barnegat,
Pleasantville, Beachwood, Somers Point, Ventnor City, Brigantine,
Northfield, Absecon, Margate City, Point Pleasant Beach, Egg Harbor
City, North Wildwood, Tuckerton, Seaside Heights and Lakehurst.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This severe thunderstorm may contain little or no lightning. Do not
wait until you hear thunder before taking cover.

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

&&

LAT...LON 3967 7411 3942 7430 3919 7462 3901 7478
      3912 7494 3912 7493 3915 7493 3918 7504
      3969 7451 4018 7426 4008 7402
TIME...MOT...LOC 1157Z 297DEG 26KT 4003 7401 3960 7429 3909 7475 

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

CMS
538 
WWUS51 KPHI 241213
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
813 AM EDT SAT JUN 24 2017

NJC001-005-009-011-025-029-241222-
/O.EXP.KPHI.SV.W.0072.000000T0000Z-170624T1215Z/
Atlantic NJ-Cumberland NJ-Ocean NJ-Cape May NJ-Burlington NJ-
Monmouth NJ-
813 AM EDT SAT JUN 24 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ATLANTIC...
SOUTHEASTERN CUMBERLAND...OCEAN...CAPE MAY...SOUTHEASTERN BURLINGTON
AND SOUTH CENTRAL MONMOUTH COUNTIES WILL EXPIRE AT 815 AM EDT...
    
The storms which prompted the warning have weakened below severe 
limits, and are exiting the warned area. Therefore the warning will 
be allowed to expire.  However heavy rain is still possible with 
these thunderstorms.

LAT...LON 3967 7411 3942 7430 3919 7462 3901 7478
      3912 7494 3912 7493 3915 7493 3918 7504
      3969 7451 4018 7426 4008 7402
TIME...MOT...LOC 1212Z 305DEG 33KT 3996 7388 3953 7416 3902 7462 

$$

CMS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 23, 8:54 PM EDTAreal Flood AdvisoryPHIMorris, Warren3 hr
Jun 24, 3:25 AM EDTAreal Flood AdvisoryPHIHunterdon, Morris, Somerset, Warren4 hr
Jun 24, 6:17 AM EDTSpecial Marine WarningPHI28 min
Jun 24, 6:20 AM EDTSpecial Weather StatementPHICumberland, Gloucester, Salem55 min
Jun 24, 6:26 AM EDTTornado WarningPHIBurlington, Camden, Gloucester34 min
Jun 24, 6:39 AM EDTTornado WarningPHIMercer, Middlesex, Monmouth36 min
Jun 24, 6:42 AM EDTSpecial Marine WarningPHI63 min
Jun 24, 6:49 AM EDTSpecial Weather StatementPHIMonmouth, Ocean41 min
Jun 24, 6:58 AM EDTSpecial Weather StatementPHIBurlington, Monmouth32 min
Jun 24, 7:00 AM EDTSpecial Weather StatementPHICape May30 min
Jun 24, 7:02 AM EDTSpecial Marine WarningPHI58 min
Jun 24, 7:09 AM EDTAreal Flood AdvisoryPHIBurlington, Mercer, Middlesex, Monmouth, Ocean, Somerset4 hr
Jun 24, 7:20 AM EDTSpecial Marine WarningPHI55 min
Jun 24, 7:21 AM EDTFlash Flood WarningPHIBurlington, Camden, Mercer, Somerset4 hr
Jun 24, 7:26 AM EDTFlash Flood WarningPHIMiddlesex, Somerset4 hr
Jun 24, 7:39 AM EDTSpecial Marine WarningPHI66 min
Jun 24, 7:54 AM EDTSpecial Marine WarningPHI66 min
Jun 24, 8:11 AM EDTSpecial Marine WarningPHI64 min
Jun 24, 8:16 AM EDTAreal Flood AdvisoryPHIAtlantic, Burlington, Monmouth, Ocean4 hr

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.