Alert archive / New Jersey / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 111, NWS Philadelphia/Mount Holly

August 11, 2015Burlington County, Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 11, 2015, 5:22 PM EDT for Burlington County, Ocean County, New Jersey. It was in force for 27 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 11, 2015, 5:22 PM EDT (21:22 UTC)
Expired
Aug 11, 2015, 5:49 PM EDT
In force
27 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Burlington County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 23 km from the middle of the area, began a volume at 21:26 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, 9.4 hours before the alert went out and 159 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 2015-08-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 58 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 2015-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 166 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
58 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
619 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
166 m²/s²
0-3 km storm-relative helicity
184 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

727 
WUUS51 KPHI 112122
SVRPHI
NJC005-029-112230-
/O.NEW.KPHI.SV.W.0111.150811T2122Z-150811T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
522 PM EDT TUE AUG 11 2015

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL OCEAN COUNTY IN SOUTHERN NEW JERSEY...
  NORTHEASTERN BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 630 PM EDT

* AT 521 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING DAMAGING WINDS TO 60 MPH. THIS STORM
  WAS LOCATED NEAR PRESIDENTIAL LAKES ESTATES...OR 17 MILES WEST OF
  TOMS RIVER...AND MOVING EAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  TOMS RIVER...BARNEGAT...BEACHWOOD...PRESIDENTIAL LAKES ESTATES...
  SEASIDE HEIGHTS...LAKEHURST...MANTOLOKING...PLEASANT PLAINS...
  BROOKVILLE...CEDAR GLEN LAKES...CEDAR GLEN WEST...BROWNS MILLS...
  HOLIDAY CITY SOUTH...OLD HALFWAY...DOVER BEACHES NORTH...
  PRESIDENTIAL LAKES...WOODRUFF...WHITING...HOLIDAY CITY-BERKELEY AND
  PINE RIDGE AT CRESTWOOD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...LARGE HAIL...DEADLY
LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION...MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 3983 7409 4001 7409 3999 7414 3999 7411
      3982 7416 3980 7410 3981 7417 3978 7410
      3980 7417 3975 7420 3977 7411 3973 7416
      3974 7412 3973 7415 3971 7413 3987 7461
      4007 7457 4003 7405
TIME...MOT...LOC 2121Z 276DEG 23KT 3994 7451 

$$
1 follow-up statement
323 
WWUS51 KPHI 112149
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
549 PM EDT TUE AUG 11 2015

NJC005-029-112158-
/O.CAN.KPHI.SV.W.0111.000000T0000Z-150811T2230Z/
OCEAN NJ-BURLINGTON NJ-
549 PM EDT TUE AUG 11 2015

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL OCEAN AND NORTHEASTERN
BURLINGTON COUNTIES IS CANCELLED...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES A WIND THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING HAS BEEN CANCELLED.

HOWEVER LIGHTNING AND HEAVY RAIN IS STILL OCCURRING AND POOR 
DRAINAGE FLOODING IS ONGOING IN BURLINGTON COUNTY.

LAT...LON 3983 7409 4001 7409 3999 7414 3999 7411
      3982 7416 3980 7410 3981 7417 3978 7410
      3980 7417 3975 7420 3977 7411 3973 7416
      3974 7412 3973 7415 3971 7413 3987 7461
      4007 7457 4003 7405
TIME...MOT...LOC 2145Z 276DEG 23KT 3992 7428 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 11, 3:44 AM EDTAreal Flood AdvisoryPHIBurlington, Camden, Gloucester, Salem4 hr
Aug 11, 4:48 AM EDTAreal Flood AdvisoryPHIHunterdon, Mercer, Middlesex, Morris, Somerset, Sussex and 1 more4 hr
Aug 11, 2:32 PM EDTSpecial Weather StatementPHIHunterdon, Somerset58 min
Aug 11, 3:16 PM EDTSpecial Weather StatementPHIMercer, Middlesex, Somerset59 min
Aug 11, 3:30 PM EDTSpecial Weather StatementPHIBurlington, Camden, Gloucester, Salem60 min
Aug 11, 4:11 PM EDTSpecial Weather StatementPHIBurlington, Middlesex, Monmouth64 min
Aug 11, 4:35 PM EDTSpecial Weather StatementPHICape May, Cumberland85 min
Aug 11, 4:50 PM EDTSpecial Marine WarningPHI85 min
Aug 11, 4:56 PM EDTAreal Flood AdvisoryPHIBurlington, Mercer, Middlesex, Monmouth, Ocean4 hr
Aug 11, 5:08 PM EDTSpecial Weather StatementPHIBurlington, Ocean52 min
Aug 11, 6:13 PM EDTSpecial Marine WarningPHI92 min
Aug 11, 6:36 PM EDTAreal Flood AdvisoryPHIBurlington, Ocean3 hr

Nearby

Severe Thunderstorm Warnings in New Jersey, 2015Every severe thunderstorm warning in 2015

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.