Alert archive / New Jersey / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 121, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 22, 2011, 5:43 PM EDT for Morris County, Somerset County, New Jersey. It was in force for 48 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 22, 2011, 5:43 PM EDT (21:43 UTC)
- Expired
- Jun 22, 2011, 6:31 PM EDT
- In force
- 48 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Morris County, NJ, Somerset County, NJ
The radar
The Philadelphia radar (KDIX), 100 km from the middle of the area, began a volume at 21:44 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 12:00Z, 9.7 hours before the alert went out and 137 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
- 367 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 717 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
260
WUUS51 KPHI 222143
SVRPHI
NJC027-035-222300-
/O.NEW.KPHI.SV.W.0121.110622T2143Z-110622T2300Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
543 PM EDT WED JUN 22 2011
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
MORRIS COUNTY IN NORTHERN NEW JERSEY...
THIS INCLUDES THE CITY OF MORRISTOWN...
NORTHEASTERN SOMERSET COUNTY IN NORTHERN NEW JERSEY...
* UNTIL 700 PM EDT
* AT 540 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN
AREA OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS
WERE LOCATED FROM DOVER TO BUDD LAKE...AND MOVING EAST AT 30 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
MOUNTAIN LAKES AROUND 550 PM EDT...
BOONTON AND MENDHAM AROUND 555 PM EDT...
BASKING RIDGE...PARSIPPANY AND MORRIS PLAINS AROUND 600 PM EDT...
LINCOLN PARK AROUND 605 PM EDT...
MORRISTOWN AROUND 610 PM EDT...
MADISON AND EAST HANOVER AROUND 615 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS...LARGE
DAMAGING HAIL AND FREQUENT DANGEROUS CLOUD TO GROUND LIGHTNING.
SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS!
&&
LAT...LON 4089 7433 4086 7431 4078 7437 4074 7436
4069 7443 4065 7440 4068 7443 4067 7446
4080 7485 4083 7482 4087 7481 4091 7474
4092 7465 4096 7464 4100 7459 4101 7434
4097 7427 4089 7427
TIME...MOT...LOC 2142Z 279DEG 26KT 4090 7453 4083 7473
$$
MPD3 follow-up statements
482
WWUS51 KPHI 222210
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
610 PM EDT WED JUN 22 2011
NJC027-035-222300-
/O.CON.KPHI.SV.W.0121.000000T0000Z-110622T2300Z/
MORRIS NJ-SOMERSET NJ-
610 PM EDT WED JUN 22 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR NORTH CENTRAL SOMERSET AND MORRIS COUNTIES...
AT 606 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE AN AREA OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE
STORMS WERE LOCATED FROM EAST HANOVER TO MORRISTOWN TO SUCCASUNNA...
AND WERE MOVING EAST AT 30 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
MADISON BY 615 PM EDT...
FLORHAM PARK AND CHATHAM BY 620 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...DANGEROUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
&&
LAT...LON 4089 7433 4086 7431 4078 7437 4074 7436
4069 7443 4065 7440 4068 7443 4067 7446
4077 7476 4085 7472 4088 7469 4090 7462
4094 7446 4098 7441 4101 7434 4097 7427
4089 7427
TIME...MOT...LOC 2209Z 279DEG 26KT 4085 7429 4078 7449
$$
MPD804
WWUS51 KPHI 222222
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
622 PM EDT WED JUN 22 2011
NJC035-222230-
/O.CAN.KPHI.SV.W.0121.000000T0000Z-110622T2300Z/
SOMERSET NJ-
622 PM EDT WED JUN 22 2011
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL SOMERSET COUNTY
IS CANCELLED...
LAT...LON 4089 7433 4086 7431 4078 7437 4074 7436
4069 7443 4065 7440 4068 7443 4073 7449
4076 7455 4082 7459 4086 7457 4089 7450
4090 7438 4093 7427 4089 7427
TIME...MOT...LOC 2220Z 279DEG 26KT 4084 7419 4077 7439
$$
NJC027-222300-
/O.CON.KPHI.SV.W.0121.000000T0000Z-110622T2300Z/
MORRIS NJ-
622 PM EDT WED JUN 22 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR SOUTHEASTERN MORRIS COUNTY...
AT 618 PM EDT...AN AREA OF THUNDERSTORMS WAS LOCATED FROM ABOUT 5
MILES EAST OF EAST HANOVER TO MADISON...MOVING EAST AT 30 MPH.
ALTHOUGH THE STORMS WERE BEGINNING TO WEAKEN...THEY STILL MAY CAUSE
SOME DAMAGE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DANGEROUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE
INDOORS IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
&&
LAT...LON 4089 7433 4086 7431 4078 7437 4074 7436
4069 7443 4065 7440 4068 7443 4073 7449
4076 7455 4082 7459 4086 7457 4089 7450
4090 7438 4093 7427 4089 7427
TIME...MOT...LOC 2220Z 279DEG 26KT 4084 7419 4077 7439
$$
MPD849
WWUS51 KPHI 222231
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
631 PM EDT WED JUN 22 2011
NJC027-222240-
/O.CAN.KPHI.SV.W.0121.000000T0000Z-110622T2300Z/
MORRIS NJ-
631 PM EDT WED JUN 22 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MORRIS COUNTY IS
CANCELLED...
THUNDERSTORMS HAVE MOVED EAST.
LAT...LON 4089 7433 4086 7431 4078 7437 4074 7436
4069 7443 4065 7440 4068 7443 4073 7449
4076 7455 4082 7459 4086 7457 4089 7450
4090 7438 4093 7427 4089 7427
TIME...MOT...LOC 2230Z 279DEG 26KT 4083 7410 4076 7430
$$
MPDThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 22, 3:31 AM EDT | Special Marine Warning | PHI | 59 min | |
| Jun 22, 8:39 AM EDT | Special Weather Statement | PHI | Morris, Sussex | 36 min |
| Jun 22, 9:31 AM EDT | Special Weather Statement | PHI | Morris, Sussex | 44 min |
| Jun 22, 3:07 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 53 min |
| Jun 22, 3:59 PM EDT | Special Weather Statement | PHI | Mercer | 61 min |
| Jun 22, 3:59 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Monmouth, Ocean | 61 min |
| Jun 22, 4:06 PM EDT | Special Marine Warning | PHI | 84 min | |
| Jun 22, 4:09 PM EDT | Special Weather Statement | PHI | Sussex | 66 min |
| Jun 22, 4:17 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Cumberland, Gloucester, Salem | 58 min |
| Jun 22, 4:37 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex, Warren | 53 min |
| Jun 22, 4:39 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean, Somerset | 66 min |
| Jun 22, 4:53 PM EDT | Tornado Warning | PHI | Sussex, Warren | 37 min |
| Jun 22, 5:11 PM EDT | Tornado Warning | PHI | Hunterdon, Morris, Sussex, Warren | 34 min |
| Jun 22, 5:31 PM EDT | Tornado Warning | PHI | Monmouth, Ocean | 29 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.