Alert archive / New Jersey / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 180, NWS Philadelphia/Mount Holly

August 2, 2009Middlesex County, Monmouth County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 2, 2009, 12:45 PM EDT for Middlesex County, Monmouth County, New Jersey. It was in force for 60 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
Aug 2, 2009, 12:45 PM EDT (16:45 UTC)
Expired
Aug 2, 2009, 1:45 PM EDT
In force
60 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Middlesex County, NJ, Monmouth County, NJ

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 4.8 hours before the alert went out and 122 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 2009-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 105 joules per kilogram.LCLLFCEL10008507005003002001001 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 2009-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 square meters per square second.193958Sfc1 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
105 J/kg
Mixed-layer CIN
-79 J/kg
Mixed-layer LCL
723 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
111 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KPHI 021645
SVRPHI
NJC023-025-021745-
/O.NEW.KPHI.SV.W.0180.090802T1645Z-090802T1745Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1245 PM EDT SUN AUG 2 2009

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  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...

* UNTIL 145 PM EDT

* AT 1243 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  EAST BRUNSWICK...OR NEAR NEW BRUNSWICK...AND MOVING EAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  OLD BRIDGE AROUND 1250 PM EDT...
  SAYREVILLE AROUND 1255 PM EDT...
  MORGANVILLE AROUND 100 PM EDT...
  MATAWAN AROUND 105 PM EDT...
  KEANSBURG AND MIDDLETOWN AROUND 115 PM EDT...
  HIGHLANDS AROUND 130 PM EDT...

LAT...LON 4019 7400 4018 7442 4047 7449 4050 7447
      4053 7451 4057 7452 4060 7442 4060 7421
      4057 7420 4055 7424 4047 7427 4044 7420
      4046 7412 4041 7400 4042 7399 4047 7401
      4047 7399 4043 7396 4033 7395
TIME...MOT...LOC 1645Z 259DEG 23KT 4042 7439

$$

IOVINO

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 2, 2:19 AM EDTFlash Flood WatchPHIBurlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 5 more13 hr
Aug 2, 7:34 AM EDTAreal Flood AdvisoryPHIHunterdon, Mercer3 hr
Aug 2, 8:48 AM EDTAreal Flood WarningPHIMercer4 hr
Aug 2, 10:53 AM EDTSevere Thunderstorm WarningPHICamden, Gloucester, Salem67 min
Aug 2, 11:14 AM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Warren61 min
Aug 2, 11:18 AM EDTFlash Flood WarningPHIHunterdon, Mercer, Middlesex, Morris, Somerset9 hr
Aug 2, 11:25 AM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Mercer65 min
Aug 2, 11:30 AM EDTSevere Thunderstorm WarningPHIAtlantic, Camden, Cape May, Cumberland, Gloucester, Salem60 min
Aug 2, 11:33 AM EDTSpecial Marine WarningPHI87 min
Aug 2, 11:48 AM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Middlesex, Monmouth, Somerset57 min
Aug 2, 11:51 AM EDTTornado WarningPHIMercer24 min
Aug 2, 12:13 PM EDTAreal Flood AdvisoryPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 3 more3 hr
Aug 2, 12:23 PM EDTSpecial Marine WarningPHI97 min
Aug 2, 12:27 PM EDTSevere Thunderstorm WarningPHIMorris, Somerset48 min
Aug 2, 12:49 PM EDTRiver Flood WarningPHIMercer8 hr
Aug 2, 1:28 PM EDTSpecial Marine WarningPHI92 min
Aug 2, 1:43 PM EDTSevere Thunderstorm WarningPHICape May47 min
Aug 2, 1:49 PM EDTSpecial Marine WarningPHI86 min
Aug 2, 1:51 PM EDTSpecial Marine WarningPHI84 min
Aug 2, 1:56 PM EDTSpecial Marine WarningPHI2 hr
Aug 2, 1:59 PM EDTRiver Flood WarningPHIHunterdon, Somerset13 hr
Aug 2, 4:16 PM EDTRiver Flood WarningPHIMiddlesex, Somerset20 hr
Aug 2, 4:16 PM EDTRiver Flood WarningPHIMiddlesex, Somerset22 hr

Nearby

Severe Thunderstorm Warnings in New Jersey, 2009Every severe thunderstorm warning in 2009

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.