Alert archive / New Jersey / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 234, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 18, 2012, 7:56 PM EDT for 4 counties in New Jersey. It was in force for 64 min. 1 report 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
- Sep 18, 2012, 7:56 PM EDT (23:56 UTC)
- Expired
- Sep 18, 2012, 9:00 PM EDT
- In force
- 64 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Atlantic County, NJ, Burlington County, NJ, Cape May County, NJ, Ocean County, NJ
The radar
The Philadelphia radar (KDIX), 53 km from the middle of the area, began a volume at 23:56 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 18, 8:18 PM EDT | TSTM WND GST 54 | Atlantic City Airport, NJ |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 18, 12:10 PM EDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 11.9 hours before the alert went out and 139 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
- 330 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 519 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 265 m²/s²
- 0-3 km storm-relative helicity
- 275 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.3
The text
As transmitted, in the capitals the NWS used until 2016.
196
WUUS51 KPHI 182356
SVRPHI
NJC001-005-009-029-190100-
/O.NEW.KPHI.SV.W.0234.120918T2356Z-120919T0100Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
756 PM EDT TUE SEP 18 2012
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...
EASTERN CAPE MAY COUNTY IN SOUTHERN NEW JERSEY...
THIS INCLUDES THE CITY OF OCEAN CITY...
SOUTH CENTRAL OCEAN COUNTY IN SOUTHERN NEW JERSEY...
* UNTIL 900 PM EDT
* AT 752 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM MIZPAH TO STONE HARBOR...AND MOVING NORTHEAST AT 40 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
MARMORA...ENGLISH CREEK...BEESLEYS POINT AND MAYS LANDING AROUND
805 PM EDT...
ELWOOD...ELWOOD-MAGNOLIA...SOMERS POINT AND OCEAN CITY AROUND 810
PM EDT...
EGG HARBOR CITY AND MARGATE CITY AROUND 815 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...HAIL...AND DEADLY CLOUD TO GROUND
LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY
INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
&&
LAT...LON 3960 7419 3950 7429 3945 7430 3935 7441
3932 7450 3925 7460 3903 7477 3933 7486
3942 7485 3953 7498 3957 7492 3973 7416
3972 7415 3974 7411
TIME...MOT...LOC 2356Z 255DEG 34KT 3950 7485 3906 7468
$$
IOVINO3 follow-up statements
622
WWUS51 KPHI 190016
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
816 PM EDT TUE SEP 18 2012
NJC009-190025-
/O.CAN.KPHI.SV.W.0234.000000T0000Z-120919T0100Z/
CAPE MAY NJ-
816 PM EDT TUE SEP 18 2012
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CAPE MAY COUNTY IS
CANCELLED...
THE STRONGEST PART OF THE LINE HAS SHIFTED OUT OF THE AREA,
THEREFORE THE WARNING HAS BEEN CANCELLED.
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EDT TUESDAY EVENING
FOR SOUTHERN DELAWARE AND NEW JERSEY.
LAT...LON 3960 7419 3949 7430 3945 7430 3938 7440
3935 7441 3932 7450 3929 7453 3930 7457
3960 7477 3971 7427 3973 7416 3972 7415
3974 7411
TIME...MOT...LOC 0015Z 239DEG 51KT 3965 7454 3921 7437
$$
NJC001-005-029-190100-
/O.CON.KPHI.SV.W.0234.000000T0000Z-120919T0100Z/
BURLINGTON NJ-ATLANTIC NJ-OCEAN NJ-
816 PM EDT TUE SEP 18 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT
FOR SOUTH CENTRAL OCEAN...EASTERN ATLANTIC AND SOUTHEASTERN
BURLINGTON COUNTIES...
AT 814 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM WADING RIVER TO 11 MILES SOUTHEAST OF LONGPORT...OR
ALONG A LINE EXTENDING FROM 20 MILES NORTH OF ATLANTIC CITY TO 11
MILES SOUTH OF ATLANTIC CITY...MOVING NORTHEAST AT 50 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
NEW GRETNA...BASS RIVER STATE FOREST...MYSTIC ISLAND AND BRIGANTINE
BY 820 PM EDT...
TUCKERTON BY 825 PM EDT...
NORTH BEACH HAVEN...MANAHAWKIN...BEACH HAVEN WEST AND BEACH HAVEN
BY 830 PM EDT...
SURF CITY BY 835 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS LINE OF STORMS MAY CONTAIN LITTLE LIGHTNING. DO NOT WAIT FOR
THUNDER BEFORE TAKING COVER. SEEK SHELTER IMMEDIATELY INSIDE A
STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EDT TUESDAY EVENING
FOR SOUTHERN DELAWARE AND NEW JERSEY.
&&
LAT...LON 3960 7419 3949 7430 3945 7430 3938 7440
3935 7441 3932 7450 3929 7453 3930 7457
3960 7477 3971 7427 3973 7416 3972 7415
3974 7411
TIME...MOT...LOC 0015Z 239DEG 45KT 3965 7454 3921 7437
$$
GORSE563
WWUS51 KPHI 190039
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
839 PM EDT TUE SEP 18 2012
NJC001-005-190049-
/O.CAN.KPHI.SV.W.0234.000000T0000Z-120919T0100Z/
BURLINGTON NJ-ATLANTIC NJ-
839 PM EDT TUE SEP 18 2012
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN ATLANTIC AND
SOUTHEASTERN BURLINGTON COUNTIES IS CANCELLED...
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EDT TUESDAY EVENING
FOR SOUTHERN DELAWARE AND NEW JERSEY.
LAT...LON 3961 7419 3960 7419 3960 7420 3955 7423
3950 7430 3950 7431 3959 7440 3960 7439
3968 7439 3973 7416 3972 7415 3974 7411
TIME...MOT...LOC 0039Z 242DEG 49KT 3980 7427 3969 7412
3943 7408
$$
NJC029-190100-
/O.CON.KPHI.SV.W.0234.000000T0000Z-120919T0100Z/
OCEAN NJ-
839 PM EDT TUE SEP 18 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT
FOR SOUTH CENTRAL OCEAN COUNTY...
AT 835 PM EDT...A LINE OF SEVERE THUNDERSTORMS WAS REPORTED CAPABLE
OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 7 MILES NORTHWEST OF MANAHAWKIN
TO SURF CITY TO 12 MILES SOUTHEAST OF BEACH HAVEN...MOVING NORTHEAST
AT 55 MPH.
THERE HAS BEEN LITTLE LIGHTNING WITH THIS ACTIVITY, HOWEVER DAMAGING
WINDS MAY STILL OCCUR BEFORE THE LINE SHIFTS QUICKLY OFFSHORE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EDT TUESDAY EVENING
FOR SOUTHERN DELAWARE AND NEW JERSEY.
&&
LAT...LON 3961 7419 3960 7419 3960 7420 3955 7423
3950 7430 3950 7431 3959 7440 3960 7439
3968 7439 3973 7416 3972 7415 3974 7411
TIME...MOT...LOC 0039Z 242DEG 49KT 3980 7427 3969 7412
3943 7408
$$
GORSE304
WWUS51 KPHI 190052
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
852 PM EDT TUE SEP 18 2012
NJC029-190103-
/O.EXP.KPHI.SV.W.0234.000000T0000Z-120919T0100Z/
OCEAN NJ-
852 PM EDT TUE SEP 18 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL OCEAN COUNTY
WILL EXPIRE AT 900 PM EDT...
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EDT TUESDAY EVENING
FOR SOUTHERN DELAWARE AND NEW JERSEY.
LAT...LON 3961 7419 3960 7419 3960 7420 3955 7423
3950 7430 3950 7431 3959 7440 3960 7439
3968 7439 3973 7416 3972 7415 3974 7411
TIME...MOT...LOC 0053Z 242DEG 49KT 3989 7405 3978 7390
3952 7386
$$
GORSEThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 17, 8:54 PM EDT | Rip Current Statement | PHI | Atlantic, Cape May, Monmouth, Ocean | 23 hr |
| Sep 18, 4:13 AM EDT | Coastal Flood Advisory | PHI | Burlington, Camden, Gloucester, Salem | 21 hr |
| Sep 18, 4:21 PM EDT | Severe Thunderstorm Warning | PHI | Salem | 69 min |
| Sep 18, 4:23 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 52 min |
| Sep 18, 4:26 PM EDT | Areal Flood Advisory | PHI | Sussex, Warren | 3 hr |
| Sep 18, 5:01 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Warren | 59 min |
| Sep 18, 5:12 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Morris, Warren | 63 min |
| Sep 18, 5:12 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester | 78 min |
| Sep 18, 5:13 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex, Warren | 62 min |
| Sep 18, 5:23 PM EDT | Severe Thunderstorm Warning | PHI | Salem | 52 min |
| Sep 18, 6:00 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 3 more | 60 min |
| Sep 18, 6:02 PM EDT | Special Marine Warning | PHI | 88 min | |
| Sep 18, 6:06 PM EDT | Areal Flood Advisory | PHI | Burlington, Hunterdon, Mercer, Middlesex, Morris, Somerset and 2 more | 54 min |
| Sep 18, 6:46 PM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Camden, Cumberland, Gloucester, Salem | 119 min |
| Sep 18, 6:52 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Monmouth, Morris, Somerset | 53 min |
| Sep 18, 6:54 PM EDT | Areal Flood Advisory | PHI | Burlington, Mercer, Middlesex, Monmouth, Morris, Ocean and 1 more | 111 min |
| Sep 18, 7:04 PM EDT | Special Weather Statement | PHI | Atlantic, Burlington, Cumberland | 56 min |
| Sep 18, 7:16 PM EDT | Areal Flood Advisory | PHI | Cape May | 59 min |
| Sep 18, 7:51 PM EDT | Special Weather Statement | PHI | Atlantic, Cape May, Ocean | 54 min |
| Sep 18, 7:52 PM EDT | Special Marine Warning | PHI | 77 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2012Every severe thunderstorm warning in 2012
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.