Alert archive / New Jersey / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 44, NWS Philadelphia/Mount Holly

June 2, 20096 counties in New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 2, 2009, 4:22 PM EDT for 6 counties in New Jersey. It was in force for 53 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
Jun 2, 2009, 4:22 PM EDT (20:22 UTC)
Expired
Jun 2, 2009, 5:15 PM EDT
In force
53 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Cumberland County, NJ, Gloucester County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 51 km from the middle of the area, began a volume at 20:23 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 watch it was issued in

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

IssuedProductOfficeLasted
Jun 2, 1:58 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 8.4 hours before the alert went out and 145 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, Phillips Aaf/Abe, MD at 12:00Z on 2009-06-02Temperature 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, Phillips Aaf/Abe, MD at 12:00Z on 2009-06-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1348 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
63 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KPHI 022022
SVRPHI
NJC001-005-007-011-015-029-022115-
/O.NEW.KPHI.SV.W.0044.090602T2022Z-090602T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
422 PM EDT TUE JUN 2 2009

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ATLANTIC COUNTY IN SOUTHERN NEW JERSEY...
  THIS INCLUDES THE CITY OF ATLANTIC CITY...
  SOUTHEASTERN BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...
  EXTREME SOUTHEASTERN CAMDEN COUNTY IN SOUTHERN NEW JERSEY...
  EXTREME NORTH CENTRAL CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY...
  SOUTHEASTERN GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY...
  SOUTH CENTRAL OCEAN COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 515 PM EDT

* AT 418 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PENNY SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM BATSTO TO FOLSOM...OR ALONG A
  LINE EXTENDING FROM 23 MILES NORTH OF ATLANTIC CITY TO 9 MILES
  NORTHEAST OF VINELAND...AND MOVING SOUTHEAST AT 35 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  ELWOOD...MIZPAH...WADING RIVER...EGG HARBOR CITY...BASS RIVER STATE
  FOREST...NEW GRETNA...MAYS LANDING...TUCKERTON...PORT REPUBLIC...
  POMONA...BEACH HAVEN...NORTH BEACH HAVEN...ABSECON...VENTNOR CITY
  AND BRIGANTINE

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
TUESDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND SOUTHERN
NEW JERSEY AND SOUTHEAST PENNSYLVANIA.

&&

LAT...LON 3954 7423 3950 7428 3950 7433 3953 7434
      3953 7440 3949 7438 3949 7432 3945 7429
      3935 7441 3933 7446 3934 7451 3938 7446
      3935 7452 3954 7506 3975 7453 3962 7418
TIME...MOT...LOC 2022Z 295DEG 31KT 3967 7452 3954 7484

$$

MPD/JJM
2 follow-up statements
000 
WWUS51 KPHI 022043
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
443 PM EDT TUE JUN 2 2009

NJC007-011-015-022048-
/O.CAN.KPHI.SV.W.0044.000000T0000Z-090602T2115Z/
CUMBERLAND NJ-CAMDEN NJ-GLOUCESTER NJ-
443 PM EDT TUE JUN 2 2009

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN GLOUCESTER...
EXTREME SOUTHEASTERN CAMDEN AND EXTREME NORTH CENTRAL CUMBERLAND
COUNTIES IS CANCELLED...

ALTHOUGH THIS SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED, A NEW 
WARNING HAS BEEN ISSUED FOR CUMBERLAND COUNTY AND IS IN EFFECT UNTIL 
5:30 PM. 

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
TUESDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND SOUTHERN
NEW JERSEY AND SOUTHEAST PENNSYLVANIA.

LAT...LON 3954 7423 3950 7428 3950 7433 3953 7434
      3953 7440 3949 7438 3949 7432 3945 7429
      3935 7441 3933 7446 3934 7451 3938 7446
      3935 7452 3950 7495 3970 7440 3962 7418
TIME...MOT...LOC 2038Z 305DEG 26KT 3959 7446 3947 7478

$$

NJC001-005-029-022115-
/O.CON.KPHI.SV.W.0044.000000T0000Z-090602T2115Z/
OCEAN NJ-ATLANTIC NJ-BURLINGTON NJ-
443 PM EDT TUE JUN 2 2009

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR SOUTHEASTERN BURLINGTON...CENTRAL ATLANTIC AND SOUTH CENTRAL
OCEAN COUNTIES...

AT 438 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PENNY
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM NEW GRETNA TO MAYS LANDING 
AND WERE MOVING OVER THE GARDEN STATE PARKWAY.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BASS
RIVER STATE FOREST...PORT REPUBLIC...MYSTIC ISLAND...TUCKERTON...
POMONA...NORTH BEACH HAVEN...BEACH HAVEN...ABSECON...PLEASANTVILLE...
NORTHFIELD...BRIGANTINE AND VENTNOR CITY

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
TUESDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND SOUTHERN
NEW JERSEY AND SOUTHEAST PENNSYLVANIA.

&&

LAT...LON 3954 7423 3950 7428 3950 7433 3953 7434
      3953 7440 3949 7438 3949 7432 3945 7429
      3935 7441 3933 7446 3934 7451 3938 7446
      3935 7452 3950 7495 3970 7440 3962 7418
TIME...MOT...LOC 2038Z 305DEG 26KT 3959 7446 3947 7478

$$

KRUZDLO
000 
WWUS51 KPHI 022104
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
504 PM EDT TUE JUN 2 2009

NJC005-022113-
/O.CAN.KPHI.SV.W.0044.000000T0000Z-090602T2115Z/
BURLINGTON NJ-
504 PM EDT TUE JUN 2 2009

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
TUESDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND SOUTHERN
NEW JERSEY AND SOUTHEAST PENNSYLVANIA.

LAT...LON 3954 7423 3950 7428 3950 7433 3953 7434
      3953 7440 3949 7438 3949 7432 3945 7429
      3935 7441 3933 7446 3934 7451 3938 7446
      3935 7452 3938 7461 3965 7426 3962 7418
TIME...MOT...LOC 2103Z 305DEG 26KT 3949 7427 3937 7459

$$

NJC001-029-022115-
/O.CON.KPHI.SV.W.0044.000000T0000Z-090602T2115Z/
OCEAN NJ-ATLANTIC NJ-
504 PM EDT TUE JUN 2 2009

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR EAST CENTRAL ATLANTIC AND SOUTH CENTRAL OCEAN COUNTIES...

AT 502 PM EDT...A LINE OF THUNDERSTORMS CAPABLE OF PRODUCING PENNY 
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS 
WERE LOCATED ALONG A LINE EXTENDING FROM BEACH HAVEN TO 
NORTHFIELD...OR ALONG A LINE EXTENDING FROM 13 MILES NORTHEAST OF 
ATLANTIC CITY TO 8 MILES WEST OF ATLANTIC CITY...MOVING SOUTHEAST AT 
30 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
PLEASANTVILLE...BRIGANTINE AND VENTNOR CITY

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
TUESDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND SOUTHERN
NEW JERSEY AND SOUTHEAST PENNSYLVANIA.

&&

LAT...LON 3954 7423 3950 7428 3950 7433 3953 7434
      3953 7440 3949 7438 3949 7432 3945 7429
      3935 7441 3933 7446 3934 7451 3938 7446
      3935 7452 3938 7461 3965 7426 3962 7418
TIME...MOT...LOC 2103Z 305DEG 26KT 3949 7427 3937 7459

$$

MPD

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 2, 2:53 PM EDTSevere Thunderstorm WarningPHICamden, Cumberland, Gloucester, Salem67 min
Jun 2, 3:38 PM EDTSevere Thunderstorm WarningPHICumberland, Salem67 min
Jun 2, 4:30 PM EDTSpecial Marine WarningPHI60 min
Jun 2, 4:39 PM EDTSevere Thunderstorm WarningPHIAtlantic, Cape May, Cumberland51 min
Jun 2, 4:40 PM EDTSpecial Marine WarningPHI95 min
Jun 2, 5:03 PM EDTSpecial Marine WarningPHI54 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2009Every severe thunderstorm warning in 2009

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.