Alert archive / New Jersey / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 304, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 14, 2011, 11:17 PM EDT for Sussex County, New Jersey. It was in force for 58 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
- Sep 14, 2011, 11:17 PM EDT (03:17 UTC)
- Expired
- Sep 15, 2011, 12:15 AM EDT
- In force
- 58 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
County Sussex County, NJ
The radar
The Philadelphia radar (KDIX), 142 km from the middle of the area, began a volume at 03:19 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 00:00Z, 3.3 hours before the alert went out and 167 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
- 853 J/kg
- Mixed-layer CIN
- -89 J/kg
- Mixed-layer LCL
- 1044 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.3
The text
As transmitted, in the capitals the NWS used until 2016.
725
WUUS51 KPHI 150317
SVRPHI
NJC037-150415-
/O.NEW.KPHI.SV.W.0304.110915T0317Z-110915T0415Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1117 PM EDT WED SEP 14 2011
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN SUSSEX COUNTY IN NORTHWEST NEW JERSEY...
* UNTIL 1215 AM EDT
* AT 1115 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
CRANDON LAKES...OR 10 MILES NORTHWEST OF NEWTON...AND MOVING
NORTHEAST AT 25 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
BRANCHVILLE AROUND 1130 PM EDT...
HAINESVILLE AROUND 1135 PM EDT...
6 MILES NORTHWEST OF SUSSEX AROUND 1150 PM EDT...
HIGH POINT AROUND 1155 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE 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 4125 7449 4100 7486 4108 7497 4109 7499
4110 7499 4111 7495 4121 7487 4122 7488
4127 7484 4134 7475 4135 7468
TIME...MOT...LOC 0318Z 227DEG 23KT 4114 7489
$$
HAYES4 follow-up statements
071
WWUS51 KPHI 150335
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1135 PM EDT WED SEP 14 2011
NJC037-150415-
/O.CON.KPHI.SV.W.0304.000000T0000Z-110915T0415Z/
SUSSEX NJ-
1135 PM EDT WED SEP 14 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 AM EDT
FOR NORTHERN SUSSEX COUNTY...
AT 1133 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED NEAR HAINESVILLE...OR 7 MILES SOUTH OF MONTAGUE...MOVING
NORTHEAST AT 25 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
6 MILES NORTHWEST OF SUSSEX BY 1150 PM EDT...
HIGH POINT BY 1155 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
&&
LAT...LON 4125 7449 4100 7486 4108 7497 4109 7499
4110 7499 4111 7495 4121 7487 4122 7488
4127 7484 4134 7475 4135 7468
TIME...MOT...LOC 0336Z 227DEG 23KT 4122 7477
$$
HAYES274
WWUS51 KPHI 150343
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1143 PM EDT WED SEP 14 2011
NJC037-150415-
/O.CON.KPHI.SV.W.0304.000000T0000Z-110915T0415Z/
SUSSEX NJ-
1143 PM EDT WED SEP 14 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 AM EDT
FOR NORTHERN SUSSEX COUNTY...
AT 1141 PM EDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.
THIS STORM WAS LOCATED NEAR HAINESVILLE...MOVING NORTHEAST AT 25 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
6 MILES NORTHWEST OF SUSSEX BY 1150 PM EDT...
HIGH POINT BY 1155 PM EDT...
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.
&&
LAT...LON 4125 7449 4111 7469 4116 7479 4118 7482
4121 7487 4122 7488 4127 7484 4134 7475
4135 7468
TIME...MOT...LOC 0343Z 227DEG 23KT 4125 7472
$$
HAYES719
WWUS51 KPHI 150358
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1158 PM EDT WED SEP 14 2011
NJC037-150415-
/O.CON.KPHI.SV.W.0304.000000T0000Z-110915T0415Z/
SUSSEX NJ-
1158 PM EDT WED SEP 14 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 AM EDT
FOR NORTH CENTRAL SUSSEX COUNTY...
AT 1154 PM EDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.
THIS STORM WAS LOCATED NEAR HIGH POINT...OR 8 MILES EAST OF
MONTAGUE...MOVING NORTHEAST AT 25 MPH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
&&
LAT...LON 4125 7449 4122 7455 4126 7465 4129 7474
4130 7475 4131 7474 4131 7477 4134 7475
4135 7468
TIME...MOT...LOC 0359Z 227DEG 23KT 4132 7462
$$
HAYES152
WWUS51 KPHI 150412
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1212 AM EDT THU SEP 15 2011
NJC037-150423-
/O.EXP.KPHI.SV.W.0304.000000T0000Z-110915T0415Z/
SUSSEX NJ-
1212 AM EDT THU SEP 15 2011
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL SUSSEX COUNTY
WILL EXPIRE AT 1215 AM 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.
THE STORM HAS WEAKENED AND MOVED OUT OF THE AREA.
LAT...LON 4125 7449 4122 7455 4126 7465 4129 7474
4130 7475 4131 7474 4131 7477 4134 7475
4135 7468
TIME...MOT...LOC 0413Z 227DEG 23KT 4137 7452
$$
HAYESThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 14, 9:27 PM EDT | Special Weather Statement | PHI | Hunterdon, Warren | 2 hr |
| Sep 14, 10:27 PM EDT | Special Weather Statement | PHI | Hunterdon | 63 min |
| Sep 14, 10:58 PM EDT | Special Weather Statement | PHI | Sussex, Warren | 62 min |
| Sep 14, 11:42 PM EDT | Special Weather Statement | PHI | Sussex | 63 min |
| Sep 14, 11:50 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 23 min |
| Sep 15, 6:50 AM EDT | Gale Warning | PHI | 22 hr | |
| Sep 15, 3:13 PM EDT | Special Weather Statement | PHI | Atlantic | 47 min |
| Sep 15, 3:33 PM EDT | Special Marine Warning | PHI | 12 min | |
| Sep 15, 3:44 PM EDT | Special Marine Warning | PHI | 61 min | |
| Sep 15, 3:48 PM EDT | Special Marine Warning | PHI | 57 min | |
| Sep 15, 4:10 PM EDT | Special Weather Statement | PHI | Atlantic | 95 min |
| Sep 15, 7:48 PM EDT | Wind Advisory | PHI | Cape May | 4 hr |
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.