Alert archive / New Jersey / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 16, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Apr 12, 2011, 10:49 PM EDT for Atlantic County, Burlington County, Ocean County, New Jersey. It was in force for 56 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
- Apr 12, 2011, 10:49 PM EDT (02:49 UTC)
- Expired
- Apr 12, 2011, 11:45 PM EDT
- In force
- 56 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Atlantic County, NJ, Burlington County, NJ, Ocean County, NJ
The radar
The Philadelphia radar (KDIX), 46 km from the middle of the area, began a volume at 02:50 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
Wallops Is Stn, VA (KWAL), launched 00:00Z, 2.8 hours before the alert went out and 197 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1089 m above ground
- 0-6 km bulk shear
- 83 kt
- 0-1 km storm-relative helicity
- -53 m²/s²
- 0-3 km storm-relative helicity
- 139 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
049
WUUS51 KPHI 130249
SVRPHI
NJC001-005-029-130345-
/O.NEW.KPHI.SV.W.0016.110413T0249Z-110413T0345Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1049 PM EDT TUE APR 12 2011
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
EASTERN ATLANTIC COUNTY IN SOUTHERN NEW JERSEY...
THIS INCLUDES THE CITY OF ATLANTIC CITY...
SOUTHEASTERN BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...
SOUTHWESTERN OCEAN COUNTY IN SOUTHERN NEW JERSEY...
* UNTIL 1145 PM EDT
* AT 1048 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM ENGLISH CREEK TO VENTNOR
CITY...OR ALONG A LINE EXTENDING FROM 12 MILES WEST OF ATLANTIC
CITY TO ATLANTIC CITY...AND MOVING NORTH AT 40 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
ATLANTIC CITY AND ABSECON AROUND 1055 PM EDT...
MAYS LANDING...POMONA AND BRIGANTINE AROUND 1100 PM EDT...
PORT REPUBLIC AROUND 1105 PM EDT...
NEW GRETNA AND EGG HARBOR CITY AROUND 1110 PM EDT...
WADING RIVER AROUND 1115 PM EDT...
BATSTO AROUND 1120 PM EDT...
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 GREATEST KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
&&
LAT...LON 3959 7428 3957 7431 3951 7429 3950 7433
3953 7434 3953 7440 3949 7438 3948 7430
3944 7430 3935 7441 3930 7452 3930 7463
3928 7468 3929 7477 3990 7462 4000 7438
3990 7422
TIME...MOT...LOC 0249Z 188DEG 37KT 3934 7466 3937 7451
3929 7442
$$
HAYES3 follow-up statements
093
WWUS51 KPHI 130310
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1110 PM EDT TUE APR 12 2011
NJC001-005-029-130345-
/O.CON.KPHI.SV.W.0016.000000T0000Z-110413T0345Z/
OCEAN NJ-ATLANTIC NJ-BURLINGTON NJ-
1110 PM EDT TUE APR 12 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 PM EDT
FOR SOUTHEASTERN BURLINGTON...EASTERN ATLANTIC AND SOUTHWESTERN OCEAN
COUNTIES...
AT 1107 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM
PORT REPUBLIC TO BRIGANTINE...OR ALONG A LINE EXTENDING FROM 13 MILES
NORTH OF ATLANTIC CITY TO 8 MILES NORTH OF ATLANTIC CITY...MOVING
NORTH AT 40 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
WADING RIVER AND MYSTIC ISLAND BY 1115 PM EDT...
BASS RIVER STATE FOREST AND TUCKERTON BY 1120 PM EDT...
PENN STATE FOREST BY 1125 PM EDT...
CHATSWORTH AND WARREN GROVE BY 1130 PM EDT...
OLD HALFWAY AND OCEAN ACRES BY 1135 PM EDT...
BROOKVILLE BY 1140 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO LARGE HAIL...CONTINUOUS CLOUD TO GROUND
LIGHTNING IS OCCURRING WITH THESE STORM. MOVE INDOORS IMMEDIATELY!
LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU
CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.
&&
LAT...LON 3932 7461 3992 7451 3990 7437 3988 7422
3959 7428 3957 7431 3951 7429 3950 7433
3953 7434 3953 7440 3949 7438 3948 7430
3944 7430 3935 7441 3930 7452 3930 7463
3928 7468
TIME...MOT...LOC 0310Z 188DEG 37KT 3958 7447 3950 7438
$$
HAYES702
WWUS51 KPHI 130328
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1128 PM EDT TUE APR 12 2011
NJC001-130338-
/O.CAN.KPHI.SV.W.0016.000000T0000Z-110413T0345Z/
ATLANTIC NJ-
1128 PM EDT TUE APR 12 2011
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN ATLANTIC COUNTY IS
CANCELLED...
THE STORMS THAT PROMPTED THE WARNINGS HAVE EXITED THE AREA.
LAT...LON 3959 7428 3957 7431 3951 7430 3950 7433
3953 7434 3953 7439 3955 7442 3955 7443
3965 7455 3992 7451 3988 7422
TIME...MOT...LOC 0328Z 188DEG 37KT 3976 7443 3968 7434
$$
NJC005-029-130345-
/O.CON.KPHI.SV.W.0016.000000T0000Z-110413T0345Z/
OCEAN NJ-BURLINGTON NJ-
1128 PM EDT TUE APR 12 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 PM EDT
FOR SOUTHEASTERN BURLINGTON AND SOUTHWESTERN OCEAN COUNTIES...
AT 1124 PM EDT...A LINE OF SEVERE THUNDERSTORMS WAS REPORTED CAPABLE
OF PRODUCING QUARTER SIZE HAIL. THESE STORMS WERE LOCATED ALONG A
LINE EXTENDING FROM PENN STATE FOREST TO BASS RIVER STATE FOREST...OR
ALONG A LINE EXTENDING FROM 21 MILES SOUTHWEST OF TOMS RIVER TO 20
MILES NORTH OF ATLANTIC CITY...MOVING NORTH AT 40 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
OLD HALFWAY...CHATSWORTH AND OCEAN ACRES BY 1135 PM EDT...
BROOKVILLE BY 1140 PM EDT...
LAT...LON 3959 7428 3957 7431 3951 7430 3950 7433
3953 7434 3953 7439 3955 7442 3955 7443
3965 7455 3992 7451 3988 7422
TIME...MOT...LOC 0328Z 188DEG 37KT 3976 7443 3968 7434
$$
HAYES564
WWUS51 KPHI 130341
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1141 PM EDT TUE APR 12 2011
NJC005-029-130351-
/O.EXP.KPHI.SV.W.0016.000000T0000Z-110413T0345Z/
OCEAN NJ-BURLINGTON NJ-
1141 PM EDT TUE APR 12 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BURLINGTON AND
SOUTHWESTERN OCEAN COUNTIES WILL EXPIRE AT 1145 PM EDT...
THE STORMS THAT PROMPTED THE WARNING HAVE WEAKENED AND ARE MOVING
OUT OF THE AREA.
LAT...LON 3959 7428 3957 7431 3951 7430 3950 7433
3953 7434 3953 7439 3955 7442 3955 7443
3965 7455 3992 7451 3988 7422
TIME...MOT...LOC 0341Z 188DEG 37KT 3989 7440 3981 7431
$$
HAYESThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 12, 9:36 PM EDT | Gale Warning | PHI | 8 hr | |
| Apr 12, 9:39 PM EDT | Special Weather Statement | PHI | Atlantic, Cape May | 36 min |
| Apr 12, 10:06 PM EDT | Special Weather Statement | PHI | Morris | 54 min |
| Apr 12, 10:10 PM EDT | Special Weather Statement | PHI | Cape May | 65 min |
| Apr 12, 10:19 PM EDT | Special Marine Warning | PHI | 56 min | |
| Apr 12, 10:37 PM EDT | Special Weather Statement | PHI | Atlantic, Burlington | 53 min |
| Apr 12, 11:26 PM EDT | Special Weather Statement | PHI | Monmouth, Ocean | 64 min |
| Apr 13, 12:12 AM EDT | Special Weather Statement | PHI | Middlesex, Morris, Somerset | 63 min |
| Apr 13, 2:26 AM EDT | Special Weather Statement | PHI | Middlesex, Monmouth | 64 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2011Every severe thunderstorm warning in 2011
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.