Alert archive / New Jersey / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 15, NWS Philadelphia/Mount Holly

March 8, 2008Morris County, Sussex County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Mar 8, 2008, 6:28 PM EST for Morris County, Sussex County, New Jersey. It was in force for 62 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
Mar 8, 2008, 6:28 PM EST (23:28 UTC)
Expired
Mar 8, 2008, 7:30 PM EST
In force
62 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Morris County, NJ, Sussex County, NJ

The radar

The Philadelphia radar (KDIX), 114 km from the middle of the area, began a volume at 23:27 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, 6:45 PM ESTTSTM WND DMGAndover, NJTREES DOWN COUNTY-WIDE.

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, 11.5 hours before the alert went out and 141 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°0°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 082330
SVRPHI
NJC027-037-090030-
/O.NEW.KPHI.SV.W.0015.080308T2328Z-080309T0030Z/

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

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MORRIS COUNTY IN NORTHERN NEW JERSEY...
  SUSSEX COUNTY IN NORTHWEST NEW JERSEY...

* UNTIL 730 PM EST

* AT 622 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A LINE OF SHOWERS CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS
  OF 70 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM
  15 MILES SOUTHWEST OF FLATBROOKVILLE TO 22 MILES SOUTHWEST OF
  MILLINGTON...OR ALONG A LINE EXTENDING FROM 24 MILES NORTHEAST OF
  BETHLEHEM TO 12 MILES NORTH OF TRENTON...AND MOVING NORTHEAST AT
  55 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  FLATBROOKVILLE...LONG VALLEY AND CHESTER BY 635 PM EST...
  FIVE POINTS...MILLINGTON...GREENDELL AND SUCCASUNNA BY 640 PM
  EST...
  CRANDON LAKES...LAKE MOHAWK AND NEWTON BY 645 PM EST...

THIS STORM HAS A HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE.
THIS IS A VERY DANGEROUS SITUATION. SEEK SHELTER NOW INSIDE 
A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS

LAT...LON 4120 7437 4108 7449 4104 7449 4105 7444
      4100 7430 4096 7427 4089 7426 4089 7433
      4085 7431 4074 7436 4064 7452 4070 7451
      4075 7456 4071 7474 4078 7488 4091 7477
      4109 7499 4115 7491 4128 7483 4135 7470
TIME...MOT...LOC 2328Z 244DEG 51KT 4098 7506 4042 7460

$$

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, 6:03 PM ESTSevere Thunderstorm WarningPHIHunterdon, Mercer, Middlesex, Somerset57 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.