Alert archive / New Jersey / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 5, NWS Philadelphia/Mount Holly

February 21, 20145 counties in New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Feb 21, 2014, 2:09 PM EST for 5 counties in New Jersey. It was in force for 66 min. 2 reports 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: Feb 21, 2014, 2:09 PM EST (19:09 UTC)
Expired: Feb 21, 2014, 3:15 PM EST
In force: 66 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

Counties Atlantic County, NJ, Burlington County, NJ, Cape May County, NJ, Cumberland County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 48 km from the middle of the area, began a volume at 19:12 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
Feb 21, 2:55 PM EST	MARINE TSTM WIND 40	Tuckerton, NJ
Feb 21, 2:55 PM EST	MARINE TSTM WIND 40	Tuckerton, 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
Feb 21, 12:38 PM EST	Tornado Watch	SPC	3 hr

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 7.2 hours before the alert went out and 192 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 599 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 206 m²/s²
0-3 km storm-relative helicity: 212 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

653 
WUUS51 KPHI 211909
SVRPHI
NJC001-005-009-011-029-212015-
/O.NEW.KPHI.SV.W.0005.140221T1909Z-140221T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
209 PM EST FRI FEB 21 2014

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...
  NORTHERN CAPE MAY COUNTY IN SOUTHERN NEW JERSEY...
  ATLANTIC COUNTY IN SOUTHERN NEW JERSEY...
  SOUTHERN OCEAN COUNTY IN SOUTHERN NEW JERSEY...
  EASTERN CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 315 PM EST

* AT 204 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS. THESE SEVERE STORMS EXTENDED FROM
  MILLVILLE TO LAUREL LAKE TO BIVALVE...MOVING NORTHEAST AT 65 MPH.
  THESE STORMS ARE CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
  60 MPH. 

* SEVERE THUNDERSTORMS WILL BE NEAR...
  MIZPAH AND WOODBINE AROUND 215 PM EST...
  WEYMOUTH AND MAYS LANDING AROUND 220 PM EST...
  ELWOOD-MAGNOLIA AND ENGLISH CREEK AROUND 225 PM EST...
  BATSTO AND WHARTON STATE FOREST AROUND 230 PM EST...
  WADING RIVER AND VENTNOR CITY AROUND 235 PM EST...
  PENN STATE FOREST AND BRIGANTINE AROUND 240 PM EST...

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 INSIDE A
STRONG BUILDING...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

VERY HEAVY RAIN WILL ALSO OCCUR WITH THIS LINE OF SEVERE
THUNDERSTORMS...WHICH COULD FLOOD LOW LYING AREAS QUICKLY AND COVER
ROADS WITH WATER. DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE
ROAD.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS LINE OF
SEVERE THUNDERSTORMS. WHEN THUNDER ROARS...MOVE INDOORS! REMEMBER...
IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY
LIGHTNING.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM EST FRIDAY AFTERNOON
FOR DELAWARE AND NORTHEASTERN MARYLAND. A TORNADO WATCH ALSO REMAINS
IN EFFECT UNTIL 500 PM EST FRIDAY AFTERNOON FOR NEW JERSEY AND
SOUTHEAST PENNSYLVANIA.

&&

LAT...LON 3981 7407 3973 7410 3956 7422 3950 7430
      3946 7430 3936 7440 3917 7493 3920 7505
      3931 7506 3952 7518 3946 7509 3957 7506
      3952 7498 3967 7481 3995 7406
TIME...MOT...LOC 1909Z 245DEG 55KT 3944 7496 3936 7493
          3924 7496

$$

FORECASTER: HEAVENER

3 follow-up statements

350 
WWUS51 KPHI 211930
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
230 PM EST FRI FEB 21 2014

NJC009-011-211940-
/O.CAN.KPHI.SV.W.0005.000000T0000Z-140221T2015Z/
CAPE MAY NJ-CUMBERLAND NJ-
230 PM EST FRI FEB 21 2014

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CUMBERLAND AND
NORTHERN CAPE MAY 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 TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM EST FRIDAY AFTERNOON
FOR DELAWARE AND NORTHEASTERN MARYLAND. A TORNADO WATCH ALSO REMAINS
IN EFFECT UNTIL 500 PM EST FRIDAY AFTERNOON FOR NEW JERSEY AND
SOUTHEAST PENNSYLVANIA.

LAT...LON 3973 7410 3960 7421 3956 7422 3950 7430
      3946 7430 3938 7438 3938 7440 3936 7440
      3934 7475 3957 7492 3967 7481 3995 7406
      3989 7408 3981 7407
TIME...MOT...LOC 1930Z 245DEG 55KT 3957 7458 3949 7455
          3937 7458

$$

NJC001-005-029-212015-
/O.CON.KPHI.SV.W.0005.000000T0000Z-140221T2015Z/
BURLINGTON NJ-ATLANTIC NJ-OCEAN NJ-
230 PM EST FRI FEB 21 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM EST
FOR SOUTHERN OCEAN...ATLANTIC AND SOUTHEASTERN BURLINGTON COUNTIES...

AT 226 PM 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 EGG HARBOR CITY TO POMONA TO ENGLISH CREEK...MOVING
NORTHEAST AT 65 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
WADING RIVER AND PORT REPUBLIC AROUND 235 PM EST...
BASS RIVER STATE FOREST AND PENN STATE FOREST AROUND 240 PM EST...
WARREN GROVE AND TUCKERTON AROUND 245 PM EST...
MANAHAWKIN AND BARNEGAT AROUND 250 PM EST...
BARNEGAT LIGHT AND WARETOWN AROUND 255 PM EST...
SEASIDE HEIGHTS AROUND 305 PM EST...

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM EST FRIDAY AFTERNOON
FOR DELAWARE AND NORTHEASTERN MARYLAND. A TORNADO WATCH ALSO REMAINS
IN EFFECT UNTIL 500 PM EST FRIDAY AFTERNOON FOR NEW JERSEY AND
SOUTHEAST PENNSYLVANIA.

&&

LAT...LON 3973 7410 3960 7421 3956 7422 3950 7430
      3946 7430 3938 7438 3938 7440 3936 7440
      3934 7475 3957 7492 3967 7481 3995 7406
      3989 7408 3981 7407
TIME...MOT...LOC 1930Z 245DEG 55KT 3957 7458 3949 7455
          3937 7458

$$

FORECASTER: HEAVENER

264 
WWUS51 KPHI 211941
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
241 PM EST FRI FEB 21 2014

NJC001-005-029-212015-
/O.CON.KPHI.SV.W.0005.000000T0000Z-140221T2015Z/
BURLINGTON NJ-ATLANTIC NJ-OCEAN NJ-
241 PM EST FRI FEB 21 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM EST
FOR SOUTHERN OCEAN...EAST CENTRAL ATLANTIC AND SOUTHEASTERN
BURLINGTON COUNTIES...

AT 238 PM 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 BASS RIVER STATE FOREST TO MYSTIC ISLAND TO 8 MILES
SOUTH OF PORT REPUBLIC...MOVING NORTHEAST AT 65 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
MANAHAWKIN AND BARNEGAT AROUND 250 PM EST...
BARNEGAT LIGHT AND WARETOWN AROUND 255 PM EST...
SEASIDE HEIGHTS AROUND 305 PM EST...

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM EST FRIDAY AFTERNOON
FOR DELAWARE AND NORTHEASTERN MARYLAND. A TORNADO WATCH ALSO REMAINS
IN EFFECT UNTIL 500 PM EST FRIDAY AFTERNOON FOR NEW JERSEY AND
SOUTHEAST PENNSYLVANIA.

&&

LAT...LON 3973 7410 3960 7421 3956 7422 3949 7449
      3973 7464 3995 7406 3989 7408 3981 7407
TIME...MOT...LOC 1941Z 245DEG 55KT 3964 7438 3956 7435
          3944 7438

$$

FORECASTER: HEAVENER

058 
WWUS51 KPHI 211951
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
251 PM EST FRI FEB 21 2014

NJC001-005-029-212001-
/O.CAN.KPHI.SV.W.0005.000000T0000Z-140221T2015Z/
BURLINGTON NJ-ATLANTIC NJ-OCEAN NJ-
251 PM EST FRI FEB 21 2014

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN OCEAN...EAST CENTRAL
ATLANTIC AND SOUTHEASTERN BURLINGTON COUNTIES IS CANCELLED...

THE STORM HAS WEAKENED TO BELOW SEVERE LIMITS...THEREFORE THE SEVERE
THUNDERSTORM WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM EST FRIDAY AFTERNOON
FOR DELAWARE AND NORTHEASTERN MARYLAND. A TORNADO WATCH ALSO REMAINS
IN EFFECT UNTIL 500 PM EST FRIDAY AFTERNOON FOR NEW JERSEY AND
SOUTHEAST PENNSYLVANIA.

LAT...LON 3973 7410 3960 7421 3956 7422 3949 7449
      3973 7464 3995 7406 3989 7408 3981 7407
TIME...MOT...LOC 1951Z 245DEG 55KT 3970 7420 3962 7417
          3950 7420

$$

FORECASTER: HEAVENER

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 21, 4:27 AM EST	Dense Fog Advisory	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more	11 hr
Feb 21, 1:42 PM EST	Special Marine Warning	PHI		33 min
Feb 21, 1:50 PM EST	Special Weather Statement	PHI	Hunterdon, Morris	55 min
Feb 21, 1:53 PM EST	Areal Flood Advisory	PHI	Hunterdon	4 hr
Feb 21, 2:03 PM EST	Special Marine Warning	PHI		57 min
Feb 21, 2:06 PM EST	Special Weather Statement	PHI	Atlantic	54 min
Feb 21, 2:09 PM EST	Areal Flood Advisory	PHI	Atlantic, Camden, Cumberland, Gloucester, Salem	4 hr
Feb 21, 2:44 PM EST	Special Marine Warning	PHI		61 min
Feb 21, 2:54 PM EST	Areal Flood Advisory	PHI	Burlington, Hunterdon, Mercer, Middlesex, Monmouth, Morris and 2 more	4 hr
Feb 21, 3:01 PM EST	Special Weather Statement	PHI	Middlesex	29 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2014 Every severe thunderstorm warning in 2014

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.