Alert archive / New Jersey / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 183, NWS Philadelphia/Mount Holly

December 1, 20109 counties in New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Dec 1, 2010, 1:16 PM EST for 9 counties in New Jersey. It was in force for 44 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: Dec 1, 2010, 1:16 PM EST (18:16 UTC)
Expired: Dec 1, 2010, 2:00 PM EST
In force: 44 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

Counties Atlantic County, NJ, Burlington County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Ocean County, NJ, Somerset County, NJ, Sussex County, NJ

The radar

The Philadelphia radar (KDIX), 25 km from the middle of the area, began a volume at 18:16 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
Dec 1, 1:30 PM EST	TSTM WND DMG	Sea Bright, NJ	FIVE POWER POLES WERE DOWNED.

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, 6.3 hours before the alert went out and 143 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: 544 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 366 m²/s²
0-3 km storm-relative helicity: 374 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.

608 
WUUS51 KPHI 011816
SVRPHI
NJC001-005-021-023-025-027-029-035-037-011900-
/O.NEW.KPHI.SV.W.0183.101201T1816Z-101201T1900Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
116 PM EST WED DEC 1 2010

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL MERCER COUNTY IN CENTRAL NEW JERSEY...
  MONMOUTH COUNTY IN CENTRAL NEW JERSEY...
  THIS INCLUDES THE CITY OF SANDY HOOK...
  MIDDLESEX COUNTY IN NORTHERN NEW JERSEY...
  THIS INCLUDES THE CITIES OF...PERTH AMBOY...NEW BRUNSWICK...
  EASTERN MORRIS COUNTY IN NORTHERN NEW JERSEY...
  THIS INCLUDES THE CITY OF MORRISTOWN...
  EASTERN SOMERSET COUNTY IN NORTHERN NEW JERSEY...
  THIS INCLUDES THE CITY OF SOMERVILLE...
  EXTREME SOUTH CENTRAL SUSSEX COUNTY IN NORTHWEST NEW JERSEY...
  EASTERN ATLANTIC COUNTY IN SOUTHERN NEW JERSEY...
  EASTERN BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...
  OCEAN COUNTY IN SOUTHERN NEW JERSEY...
  THIS INCLUDES THE CITY OF TOMS RIVER...

* UNTIL 200 PM EST

* AT 110 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A LINE OF HEAVY SHOWERS AND ISOLATED THUNDERSTORMS CAPABLE OF      
  PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE   
  LOCATED ALONG A LINE EXTENDING FROM SUCCASUNNA TO ROOSEVELT TO     
  POMONA...OR ALONG A LINE EXTENDING FROM 7 MILES NORTHWEST OF       
  MORRISTOWN TO 14 MILES EAST OF TRENTON TO 11 MILES NORTHWEST OF    
  ATLANTIC CITY...AND MOVING EAST AT 40 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS LINE OF HEAVY SHOWERS AND ISOLATED THUNDERSTORMS MAY 
CONTAIN LITTLE OR NO LIGHTNING. DO NOT WAIT FOR THUNDER BEFORE 
TAKING COVER. SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND 
STAY AWAY FROM WINDOWS.

&&

LAT...LON 4027 7397 3960 7418 3950 7428 3953 7440
      3950 7440 3949 7438 3948 7431 3947 7432
      3938 7462 4019 7456 4091 7467 4101 7433
      4089 7427 4059 7444 4059 7420 4047 7427
      4041 7400 4042 7399 4047 7401 4047 7399
TIME...MOT...LOC 1814Z 249DEG 35KT 4085 7454 4023 7444
          3951 7450

$$

GORSE

1 follow-up statement

870 
WWUS51 KPHI 011844
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
144 PM EST WED DEC 1 2010

NJC005-021-035-037-011852-
/O.CAN.KPHI.SV.W.0183.000000T0000Z-101201T1900Z/
SUSSEX NJ-SOMERSET NJ-MERCER NJ-BURLINGTON NJ-
144 PM EST WED DEC 1 2010

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN BURLINGTON...EAST
CENTRAL MERCER...EASTERN SOMERSET AND EXTREME SOUTH CENTRAL SUSSEX
COUNTIES IS CANCELLED...

THE LINE OF HEAVY SHOWERS AND ISOLATED THUNDERSTORMS HAVE MOVED OUT
OF THE AREA.

LAT...LON 3979 7412 3978 7417 3977 7413 3962 7416
      3952 7427 3955 7429 3960 7426 3959 7430
      3948 7431 3953 7436 4019 7430 4060 7437
      4059 7420 4047 7427 4042 7399 4047 7401
      4047 7399 4027 7397
TIME...MOT...LOC 1842Z 249DEG 35KT 4093 7425 4029 7418
          3960 7422

$$

NJC001-023-025-027-029-011900-
/O.CON.KPHI.SV.W.0183.000000T0000Z-101201T1900Z/
MORRIS NJ-MIDDLESEX NJ-MONMOUTH NJ-OCEAN NJ-ATLANTIC NJ-
144 PM EST WED DEC 1 2010

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM EST
FOR EXTREME EAST CENTRAL ATLANTIC...EASTERN OCEAN...MONMOUTH...
NORTHEASTERN MIDDLESEX AND EAST CENTRAL MORRIS COUNTIES...

AT 140 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A LINE OF HEAVY SHOWERS AND ISOLATED THUNDERSTORMS CAPABLE 
OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS LINE  
EXTENDED FROM LINCOLN PARK TO EAST FREEHOLD TO NORTH BEACH 
HAVEN...OR FROM 6 MILES WEST OF PATERSON TO 15 MILES SOUTHWEST OF 
SANDY HOOK TO 19 MILES NORTHEAST OF ATLANTIC CITY...MOVING EAST AT 
40 MPH.

THIS LINE OF HEAVY SHOWERS AND ISOLATED THUNDERSTORMS MAY CONTAIN 
LITTLE OR NO LIGHTNING. DO NOT WAIT FOR THUNDER BEFORE TAKING COVER. 
SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY 
FROM WINDOWS. A SHARP WIND SHIFT FROM THE SOUTH TO THE WEST WILL 
OCCUR AS THIS LINE MOVES THROUGH.

LAT...LON 3979 7412 3978 7417 3977 7413 3962 7416
      3952 7427 3955 7429 3960 7426 3959 7430
      3948 7431 3953 7436 4019 7430 4060 7437
      4059 7420 4047 7427 4042 7399 4047 7401
      4047 7399 4027 7397
TIME...MOT...LOC 1842Z 249DEG 35KT 4093 7425 4029 7418
          3960 7422

$$

GORSE

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 1, 1:27 AM EST	Special Weather Statement	PHI	Sussex, Warren	63 min
Dec 1, 2:40 AM EST	Special Weather Statement	PHI	Mercer, Middlesex	65 min
Dec 1, 4:02 AM EST	Special Weather Statement	PHI	Burlington, Camden, Mercer, Middlesex, Monmouth, Ocean and 1 more	58 min
Dec 1, 5:07 AM EST	Special Weather Statement	PHI	Hunterdon, Mercer, Middlesex, Monmouth, Morris, Somerset	53 min
Dec 1, 6:18 AM EST	Special Weather Statement	PHI	Morris, Sussex, Warren	57 min
Dec 1, 7:43 AM EST	Special Weather Statement	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 3 more	47 min
Dec 1, 8:36 AM EST	Special Weather Statement	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 8 more	54 min
Dec 1, 8:58 AM EST	Areal Flood Advisory	PHI	Burlington, Camden, Cumberland, Gloucester, Mercer, Monmouth and 1 more	6 hr
Dec 1, 9:04 AM EST	Areal Flood Advisory	PHI	Hunterdon, Middlesex, Morris, Somerset, Sussex, Warren	4 hr
Dec 1, 9:31 AM EST	Special Weather Statement	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 11 more	59 min
Dec 1, 10:49 AM EST	Special Weather Statement	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more	56 min
Dec 1, 11:35 AM EST	Severe Thunderstorm Warning	PHI	Cumberland, Gloucester, Salem	40 min
Dec 1, 11:47 AM EST	Special Marine Warning	PHI		58 min
Dec 1, 11:48 AM EST	Special Weather Statement	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 5 more	57 min
Dec 1, 12:12 PM EST	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 9 more	63 min
Dec 1, 12:21 PM EST	Special Marine Warning	PHI		54 min
Dec 1, 12:59 PM EST	Areal Flood Advisory	PHI	Hunterdon, Mercer, Middlesex, Morris, Somerset, Sussex and 1 more	4 hr
Dec 1, 1:21 PM EST	Special Marine Warning	PHI		84 min
Dec 1, 1:34 PM EST	Areal Flood Advisory	PHI	Burlington, Monmouth, Ocean	4 hr
Dec 1, 2:06 PM EST	Special Weather Statement	PHI	Monmouth	24 min
Dec 1, 3:52 PM EST	Small Craft Advisory	PHI		19 hr

Nearby

Severe Thunderstorm Warnings in New Jersey, 2010 Every severe thunderstorm warning in 2010

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.