Alert archive / New Jersey / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 124, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Nov 18, 2013, 2:54 AM EST for 4 counties in Pennsylvania; 5 counties in New Jersey. It was in force for 66 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
- Nov 18, 2013, 2:54 AM EST (07:54 UTC)
- Expired
- Nov 18, 2013, 4:00 AM EST
- In force
- 66 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Hunterdon County, NJ, Morris County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ, Bucks County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 116 km from the middle of the area, began a volume at 07:56 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Nov 18, 1:07 AM EST | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 7.9 hours before the alert went out and 157 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
- 520 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 135 m²/s²
- 0-3 km storm-relative helicity
- 126 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
290
WUUS51 KPHI 180754
SVRPHI
NJC019-027-035-037-041-PAC017-077-089-095-180900-
/O.NEW.KPHI.SV.W.0124.131118T0754Z-131118T0900Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
254 AM EST MON NOV 18 2013
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WARREN COUNTY IN NORTHWEST NEW JERSEY...
HUNTERDON COUNTY IN NORTHWEST NEW JERSEY...
MORRIS COUNTY IN NORTHERN NEW JERSEY...
SOMERSET COUNTY IN NORTHERN NEW JERSEY...
SUSSEX COUNTY IN NORTHWEST NEW JERSEY...
NORTHWESTERN BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA...
SOUTHEASTERN LEHIGH COUNTY IN EASTERN PENNSYLVANIA...
EASTERN MONROE COUNTY IN NORTHEAST PENNSYLVANIA...
NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA...
* UNTIL 400 AM EST
* AT 252 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS. THESE SEVERE STORMS EXTENDED FROM
TAMIMENT TO WIND GAP TO EAST GREENVILLE...MOVING EAST AT 50 MPH.
THESE STORMS ARE CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
SPRINGTOWN AND EASTON AROUND 300 AM EST...
RIEGELSVILLE AND QUAKERTOWN AROUND 305 AM EST...
HAINESVILLE AND MONTAGUE AROUND 310 AM EST...
BRANCHVILLE AND WASHINGTON AROUND 315 AM EST...
PELLETTOWN AND HIGH POINT AROUND 320 AM EST...
HAMBURG AND SUSSEX AROUND 325 AM EST...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE WINDS OF MORE THAN 57 MPH...OR HAIL ONE
INCH OR LARGER.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 AM EST MONDAY
MORNING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY AND
EASTERN PENNSYLVANIA.
&&
LAT...LON 4121 7437 4109 7450 4104 7450 4105 7445
4102 7443 4098 7428 4073 7437 4068 7445
4066 7442 4058 7452 4041 7460 4041 7548
4046 7554 4125 7523 4125 7512 4116 7515
4109 7503 4118 7489 4132 7480 4136 7471
TIME...MOT...LOC 0754Z 277DEG 44KT 4116 7509 4082 7528
4041 7551
$$
FORECASTER: HEAVENER1 follow-up statement
291
WWUS51 KPHI 180829
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
329 AM EST MON NOV 18 2013
PAC077-089-095-180839-
/O.CAN.KPHI.SV.W.0124.000000T0000Z-131118T0900Z/
LEHIGH PA-MONROE PA-NORTHAMPTON PA-
329 AM EST MON NOV 18 2013
...THE SEVERE THUNDERSTORM WARNING FOR NORTHAMPTON...EASTERN MONROE
AND SOUTHEASTERN LEHIGH COUNTIES IS CANCELLED...
THE STORM THAT PROMPTED THE SEVERE THUNDERSTORM WARNING HAS MOVED OUT
OF THE AREA...THEREFORE THE SEVERE THUNDERSTORM WARNING HAS BEEN
CANCELLED.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 AM EST MONDAY
MORNING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY AND
EASTERN PENNSYLVANIA. A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN
EFFECT UNTIL 800 AM EST MONDAY MORNING FOR NORTHEAST NEW JERSEY.
LAT...LON 4118 7441 4109 7450 4104 7450 4105 7445
4102 7443 4096 7428 4090 7433 4084 7432
4074 7436 4058 7452 4041 7460 4041 7536
4059 7525 4062 7519 4069 7519 4085 7508
4086 7505 4089 7506 4123 7486
TIME...MOT...LOC 0829Z 277DEG 44KT 4109 7458 4077 7477
4040 7502
$$
NJC019-027-035-037-041-PAC017-180900-
/O.CON.KPHI.SV.W.0124.000000T0000Z-131118T0900Z/
WARREN NJ-HUNTERDON NJ-MORRIS NJ-SOMERSET NJ-SUSSEX NJ-BUCKS PA-
329 AM EST MON NOV 18 2013
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 AM EST
FOR NORTH CENTRAL BUCKS...SUSSEX...SOMERSET...MORRIS...HUNTERDON AND
WARREN COUNTIES...
AT 324 AM EST...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 OGDENSBURG TO BEATTYESTOWN TO PIPERSVILLE...MOVING
EAST AT 50 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
HIGHLAND LAKE AND DOVER AROUND 335 AM EST...
WHITE MEADOW LAKE AND LAKE TELEMARK AROUND 340 AM EST...
HANOVER TOWNSHIP AND RARITAN AROUND 345 AM EST...
PEQUANNOCK TOWNSHIP AND MILLSTONE AROUND 350 AM EST...
CHATHAM AROUND 355 AM EST...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 AM EST MONDAY
MORNING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY AND
EASTERN PENNSYLVANIA.
&&
LAT...LON 4118 7441 4109 7450 4104 7450 4105 7445
4102 7443 4096 7428 4090 7433 4084 7432
4074 7436 4058 7452 4041 7460 4041 7536
4059 7525 4062 7519 4069 7519 4085 7508
4086 7505 4089 7506 4123 7486
TIME...MOT...LOC 0829Z 277DEG 44KT 4109 7458 4077 7477
4040 7502
$$
KLINEThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 18, 1:58 AM EST | Severe Thunderstorm Warning | PHI | Berks, Bucks, Carbon, Lehigh, Monroe, Northampton | 62 min |
| Nov 18, 2:28 AM EST | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Delaware, Montgomery | 62 min |
| Nov 18, 3:29 AM EST | Severe Thunderstorm Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 61 min |
| Nov 18, 2:46 AM EST | Severe Thunderstorm Warning | PHI | Salem | 59 min |
| Nov 18, 3:04 AM EST | Special Marine Warning | PHI | 86 min | |
| Nov 18, 3:39 AM EST | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland | 66 min |
| Nov 18, 3:43 AM EST | Special Marine Warning | PHI | 92 min | |
| Nov 18, 4:06 AM EST | Severe Thunderstorm Warning | PHI | Middlesex, Somerset | 24 min |
| Nov 18, 4:20 AM EST | Special Marine Warning | PHI | 85 min | |
| Nov 18, 4:28 AM EST | Special Weather Statement | PHI | Atlantic, Burlington, Monmouth, Ocean | 32 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2013Severe Thunderstorm Warnings in Pennsylvania, 2013Every severe thunderstorm warning in 2013
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.