Alert archive / New Jersey / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 124, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 23, 2011, 9:46 AM EDT for Morris County, Sussex County, Warren County, New Jersey. It was in force for 59 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
- Jun 23, 2011, 9:46 AM EDT (13:46 UTC)
- Expired
- Jun 23, 2011, 10:45 AM EDT
- In force
- 59 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Morris County, NJ, Sussex County, NJ, Warren County, NJ
The radar
The Philadelphia radar (KDIX), 117 km from the middle of the area, began a volume at 13:47 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 |
|---|---|---|---|
| Jun 23, 10:00 AM EDT | TSTM WND DMG | Newton, NJ | NUMEROUS TREES REPORTED DOWN THROUGHOUT THE COUNTY |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 1.8 hours before the alert went out and 133 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
- 414 J/kg
- Mixed-layer CIN
- -95 J/kg
- Mixed-layer LCL
- 575 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.2
The text
As transmitted, in the capitals the NWS used until 2016.
017
WUUS51 KPHI 231346
SVRPHI
NJC027-037-041-231445-
/O.NEW.KPHI.SV.W.0124.110623T1346Z-110623T1445Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
946 AM EDT THU JUN 23 2011
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN MORRIS COUNTY IN NORTHERN NEW JERSEY...
SOUTHERN SUSSEX COUNTY IN NORTHWEST NEW JERSEY...
THIS INCLUDES THE CITY OF NEWTON...
EAST CENTRAL WARREN COUNTY IN NORTHWEST NEW JERSEY...
* UNTIL 1045 AM EDT
* AT 942 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND
DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THIS STORM WAS LOCATED 8
MILES WEST OF NEWTON...AND MOVING EAST AT 30 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
ALLAMUCHY-PANTHER VALLEY...BRANCHVILLE...ANDOVER...BUDD LAKE...
NETCONG...STANHOPE...LAKE MOHAWK...HOPATCONG...SUCCASUNNA...MOUNT
ARLINGTON...OGDENSBURG...FRANKLIN...WHARTON...HAMBURG...DOVER...
ROCKAWAY...LAKE TELEMARK...MORRIS PLAINS...GREEN POND...HIGHLAND
LAKE...MOUNTAIN LAKES...PARSIPPANY...BOONTON...KINNELON...EAST
HANOVER...BUTLER...RIVERDALE...PEQUANNOCK TOWNSHIP AND LINCOLN PARK
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. 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...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
THIS STORM HAS A HISTORY OF PRODUCING WIND DAMAGE IN SMITHFIELD
TOWNSHIP IN MONROE COUNTY. TREES FELL ON CARS. PLEASE REMAIN
INDOORS UNTIL THIS THUNDERSTORM PASSES.
&&
LAT...LON 4109 7449 4104 7449 4105 7447 4105 7444
4101 7439 4100 7430 4097 7427 4089 7428
4089 7433 4086 7431 4078 7436 4090 7486
4115 7478 4120 7438
TIME...MOT...LOC 1346Z 270DEG 26KT 4103 7487
$$
TFG2 follow-up statements
175
WWUS51 KPHI 231405
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1005 AM EDT THU JUN 23 2011
NJC041-231414-
/O.CAN.KPHI.SV.W.0124.000000T0000Z-110623T1445Z/
WARREN NJ-
1005 AM EDT THU JUN 23 2011
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL WARREN COUNTY IS
CANCELLED...
THE SEVERE THUNDERSTORM WILL REMAIN NORTH OF THE COUNTY.
LAT...LON 4109 7449 4104 7449 4105 7447 4105 7444
4101 7439 4100 7430 4097 7427 4089 7428
4089 7433 4086 7431 4078 7436 4097 7482
4115 7478 4120 7438
TIME...MOT...LOC 1404Z 270DEG 26KT 4103 7470
$$
NJC027-037-231445-
/O.CON.KPHI.SV.W.0124.000000T0000Z-110623T1445Z/
SUSSEX NJ-MORRIS NJ-
1005 AM EDT THU JUN 23 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 AM EDT
FOR NORTHEASTERN MORRIS AND SOUTHERN SUSSEX COUNTIES...
AT 1004 AM 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 LAKE MOHAWK...OR NEAR NEWTON...MOVING EAST AT 30 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
HOPATCONG...MOUNT ARLINGTON...OGDENSBURG...FRANKLIN...WHARTON...
HAMBURG...DOVER...VICTORY GARDENS...ROCKAWAY...WHITE MEADOW LAKE...
LAKE TELEMARK...MORRIS PLAINS...GREEN POND...HIGHLAND LAKE...MOUNTAIN
LAKES...HANOVER TOWNSHIP...PARSIPPANY...BOONTON...KINNELON...EAST
HANOVER...BUTLER...RIVERDALE...PEQUANNOCK TOWNSHIP AND LINCOLN PARK
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. 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...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS. SEEK
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!
&&
LAT...LON 4109 7449 4104 7449 4105 7447 4105 7444
4101 7439 4100 7430 4097 7427 4089 7428
4089 7433 4086 7431 4078 7436 4097 7482
4115 7478 4120 7438
TIME...MOT...LOC 1404Z 270DEG 26KT 4103 7470
$$
TFG221
WWUS51 KPHI 231432
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1032 AM EDT THU JUN 23 2011
NJC037-231441-
/O.CAN.KPHI.SV.W.0124.000000T0000Z-110623T1445Z/
SUSSEX NJ-
1032 AM EDT THU JUN 23 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN SUSSEX COUNTY IS
CANCELLED...
THE SEVERE THUNDERSTORM HAS MOVED INTO MORRIS COUNTY. NUMEROUS TREES
WERE KNOCKED DOWN IN SUSSEX COUNTY. SOME ROADWAYS MAY BE BLOCKED,
PLEASE GIVE YOURSELF SOME EXTRA TIME TO REACH YOUR DESTINATIONS THE
REST OF THE MORNING.
LAT...LON 4089 7434 4088 7434 4097 7461 4104 7454
4108 7449 4109 7449 4104 7449 4105 7447
4105 7444 4101 7439 4100 7430 4097 7427
4089 7428 4089 7433
TIME...MOT...LOC 1431Z 275DEG 25KT 4101 7445
$$
NJC027-231445-
/O.CON.KPHI.SV.W.0124.000000T0000Z-110623T1445Z/
MORRIS NJ-
1032 AM EDT THU JUN 23 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 AM EDT
FOR NORTHEASTERN MORRIS COUNTY...
AT 1029 AM EDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING DAMAGING WINDS TO 60 MPH. THIS STORM WAS LOCATED NEAR
GREEN POND...OR 15 MILES EAST OF NEWTON...MOVING EAST AT 30 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
BOONTON...KINNELON...BUTLER...RIVERDALE...PEQUANNOCK TOWNSHIP AND
LINCOLN PARK
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
&&
LAT...LON 4089 7434 4088 7434 4097 7461 4104 7454
4108 7449 4109 7449 4104 7449 4105 7447
4105 7444 4101 7439 4100 7430 4097 7427
4089 7428 4089 7433
TIME...MOT...LOC 1431Z 275DEG 25KT 4101 7445
$$
TFGThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 23, 8:54 AM EDT | Severe Thunderstorm Warning | PHI | Sussex, Warren | 81 min |
| Jun 23, 10:48 AM EDT | Areal Flood Advisory | PHI | Morris, Sussex | 3 hr |
| Jun 23, 11:37 AM EDT | Flash Flood Warning | PHI | Morris, Sussex | 2 hr |
| Jun 23, 1:56 PM EDT | Special Weather Statement | PHI | Middlesex | 94 min |
| Jun 23, 3:47 PM EDT | Special Weather Statement | PHI | Monmouth | 58 min |
| Jun 23, 5:18 PM EDT | Special Weather Statement | PHI | Camden | 87 min |
| Jun 23, 6:26 PM EDT | Special Weather Statement | PHI | Burlington, Camden, Ocean | 94 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.