Alert archive / New Jersey / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 14, NWS Philadelphia/Mount Holly

March 8, 20084 counties in New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Mar 8, 2008, 6:03 PM EST for 4 counties in New Jersey. It was in force for 57 min. 4 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
Mar 8, 2008, 6:03 PM EST (23:03 UTC)
Expired
Mar 8, 2008, 7:00 PM EST
In force
57 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 66 km from the middle of the area, began a volume at 23:04 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

TimeReportWhereRemark
Mar 8, 6:30 PM ESTTSTM WND DMGFlemington, NJWIDESPREAD TREES AND WIRES DOWN. SOME ROOF DAMAGE TO BUILDINGS.
Mar 8, 6:30 PM ESTTSTM WND DMGPennington, NJTREES DOWN IN HAMILTON SQUARE AND HOPEWELL TWP.
Mar 8, 6:30 PM ESTTSTM WND DMGPrinceton, NJTREES AND POWER LINES DOWN.
Mar 8, 6:45 PM ESTTSTM WND DMG1 Se Rossmoor, NJTREES DOWN IN MONROE TWP.

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, 11.1 hours before the alert went out and 156 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-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2008-03-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2008-03-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 176 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
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
444 m above ground
0-6 km bulk shear
77 kt
0-1 km storm-relative helicity
176 m²/s²
0-3 km storm-relative helicity
240 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.

000 
WUUS51 KPHI 082304
SVRPHI
NJC019-021-023-035-090000-
/O.NEW.KPHI.SV.W.0014.080308T2303Z-080309T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
603 PM EST SAT MAR 8 2008

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MERCER COUNTY IN CENTRAL NEW JERSEY...
  THIS INCLUDES THE CITY OF TRENTON...
  MIDDLESEX COUNTY IN NORTHERN NEW JERSEY...
  THIS INCLUDES THE CITIES OF...PERTH AMBOY...NEW BRUNSWICK...
  SOMERSET COUNTY IN NORTHERN NEW JERSEY...
  HUNTERDON COUNTY IN NORTHWEST NEW JERSEY...

* UNTIL 700 PM EST

* AT 559 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PENNY SIZE
  HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS
  WERE LOCATED ALONG A LINE EXTENDING FROM 10 MILES WEST OF MILFORD
  TO 12 MILES SOUTHWEST OF TRENTON...OR ALONG A LINE EXTENDING FROM 6
  MILES EAST OF BETHLEHEM TO 12 MILES SOUTHWEST OF TRENTON...AND
  MOVING NORTHEAST AT 55 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  SAND BROOK...WHITE HORSE...TRENTON AND PENNINGTON BY 610 PM EST...
  WINDSOR...EDINBURG...SKILLMAN AND CLOVERHILL BY 620 PM EST...
  SOUTH BRUNSWICK AND FLAGTOWN BY 640 PM EST...

LAT...LON 4049 7426 4046 7424 4014 7463 4017 7468
      4015 7472 4031 7492 4040 7497 4042 7506
      4053 7507 4056 7510 4057 7520 4078 7489
      4071 7474 4075 7456 4070 7451 4064 7452
      4066 7441 4064 7440 4059 7444 4059 7420
TIME...MOT...LOC 2303Z 222DEG 64KT 4067 7520 4012 7481

$$

SZATKOWSKI

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 8, 4:40 AM ESTWind AdvisoryPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more27 hr
Mar 8, 10:38 AM ESTSevere Thunderstorm WarningPHIBurlington, Ocean37 min
Mar 8, 12:03 PM ESTFlash Flood WarningPHIBurlington, Camden, Gloucester, Mercer, Salem4 hr
Mar 8, 12:36 PM ESTFlash Flood WarningPHIHunterdon, Mercer, Morris, Somerset, Sussex, Warren5 hr
Mar 8, 1:35 PM ESTRiver Flood WarningPHISomerset31 hr
Mar 8, 1:35 PM ESTRiver Flood WarningPHIEssex, Morris, Passaic4 days
Mar 8, 1:35 PM ESTRiver Flood WarningPHIEssex, Passaic4 days
Mar 8, 1:35 PM ESTRiver Flood WarningPHIPassaic44 hr
Mar 8, 1:35 PM ESTRiver Flood WarningPHIMorris, Passaic44 hr
Mar 8, 1:35 PM ESTRiver Flood WarningPHIBergen, Morris, Passaic21 hr
Mar 8, 1:35 PM ESTRiver Flood WarningPHIMiddlesex, Somerset25 hr
Mar 8, 1:35 PM ESTRiver Flood WarningPHIMorris65 hr
Mar 8, 3:58 PM ESTHigh Wind WarningPHIBurlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 7 more6 hr
Mar 8, 4:09 PM ESTRiver Flood WarningPHIMorris, Somerset5 hr
Mar 8, 4:09 PM ESTRiver Flood WarningPHIMorris, Somerset5 hr
Mar 8, 4:09 PM ESTRiver Flood WarningPHIMorris, Passaic5 hr
Mar 8, 4:09 PM ESTRiver Flood WarningPHIMorris25 hr
Mar 8, 4:28 PM ESTRiver Flood WarningPHIHunterdon, Somerset17 hr
Mar 8, 5:44 PM ESTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester46 min
Mar 8, 5:49 PM ESTSevere Thunderstorm WarningPHIWarren41 min
Mar 8, 6:28 PM ESTSevere Thunderstorm WarningPHIMorris, Sussex62 min
Mar 8, 6:51 PM ESTRiver Flood WarningPHISomerset10 hr

Nearby

Severe Thunderstorm Warnings in New Jersey, 2008Every severe thunderstorm warning in 2008

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.