Alert archive / New Jersey / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 51, NWS Philadelphia/Mount Holly

May 13, 2002Atlantic County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 13, 2002, 5:41 PM EDT for Atlantic County, New Jersey. It was in force for 19 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 13, 2002, 5:41 PM EDT (21:41 UTC)
Expired
May 13, 2002, 6:00 PM EDT
In force
19 min
Issued by
NWS Philadelphia/Mount Holly
Area
Whole counties

County Atlantic County, NJ

The radar

The Philadelphia radar (KDIX), 56 km from the middle of the area, began a volume at 21:44 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 13, 1:30 PM EDTTornado WatchSPC6 hr

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 9.7 hours before the alert went out and 184 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, Wallops Is Stn, VA at 12:00Z on 2002-05-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1109 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, Wallops Is Stn, VA at 12:00Z on 2002-05-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 151 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
1109 J/kg
Mixed-layer CIN
-92 J/kg
Mixed-layer LCL
862 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
151 m²/s²
0-3 km storm-relative helicity
159 m²/s²
Significant tornado parameter
0.5
Supercell composite
3.4

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KPHI 132141
SVRPHI
NJC001-132200-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
541 PM EDT MON MAY 13 2002

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL ATLANTIC COUNTY IN SOUTHERN NEW JERSEY.

* UNTIL 600 PM EDT.

* AT 539 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  A SEVERE THUNDERSTORM...OVER HAMMONTON...MOVING EAST AT 40 MPH.

HAIL UP TO ONE INCH IN DIAMETER AND WINDS GREATER THAN 55 MILES AN
HOUR ARE EXPECTED FROM THIS STORM. SEEK SHELTER IN A STURDY STRUCTURE
UNTIL THE STORM HAS PASSED.

A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER...
SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING.

FOR THE LATEST STORM INFORMATION...PLEASE TUNE TO NOAA WEATHER
RADIO...YOUR LOCAL RADIO OR TELEVISION STATION...OR YOUR CABLE
TELEVISION OUTLET.

$$

TFG

The office that day

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

IssuedProductOfficeCountiesLasted
May 12, 8:08 PM EDTSpecial Marine WarningPHI67 min
May 12, 8:08 PM EDTSpecial Marine WarningPHI67 min
May 12, 8:08 PM EDTSpecial Marine WarningPHI67 min
May 12, 10:48 PM EDTSpecial Marine WarningPHI57 min
May 12, 10:48 PM EDTSpecial Marine WarningPHI57 min
May 12, 10:48 PM EDTSpecial Marine WarningPHI57 min
May 13, 4:43 PM EDTSevere Thunderstorm WarningPHICumberland, Salem47 min
May 13, 4:58 PM EDTTornado WarningPHISalem32 min
May 13, 5:11 PM EDTSevere Thunderstorm WarningPHIGloucester34 min
May 13, 5:18 PM EDTSevere Thunderstorm WarningPHICamden37 min
May 13, 5:23 PM EDTTornado WarningPHICamden, Gloucester22 min
May 13, 5:33 PM EDTSevere Thunderstorm WarningPHIBurlington42 min
May 13, 5:34 PM EDTSevere Thunderstorm WarningPHIBurlington41 min
May 13, 5:53 PM EDTTornado WarningPHIBurlington, Ocean37 min
May 13, 5:58 PM EDTSpecial Marine WarningPHI92 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2002Every severe thunderstorm warning in 2002

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; radar from the NEXRAD Level II archive.