Alert archive / New Jersey / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 3, NWS Philadelphia/Mount Holly

February 22, 1997Somerset County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Feb 22, 1997, 12:52 PM EST for Somerset County, New Jersey. It was in force for 48 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
Feb 22, 1997, 12:52 PM EST (17:52 UTC)
Expired
Feb 22, 1997, 1:40 PM EST
In force
48 min
Issued by
NWS Philadelphia/Mount Holly
Area
Whole counties

County Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 71 km from the middle of the area, began a volume at 17:53 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 nearest sounding before it

Albany, NY (KALB), launched 12:00Z, 5.9 hours before the alert went out and 245 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, Albany, NY at 12:00Z on 1997-02-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 81 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, Albany, NY at 12:00Z on 1997-02-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 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
81 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
1001 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
23 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPHL 221755 RRA
SVRPHL
NJC035-221840-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PHILADELPHIA/MOUNT HOLLY NJ
1252 PM EST SAT FEB 22 1997

THE NATIONAL WEATHER SERVICE IN PHILADELPHIA/MOUNT HOLLY NJ HAS
ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 140 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN  NEW JERSEY

   ...SOUTHERN SOMERSET COUNTY
 
AT 1251 PM EST...A SEVERE THUNDERSTORM WAS INDICATED BY NWS DOPPLER
RADAR 5 MILES SOUTH SOUTHWEST OF NESHANIC MOVING EAST AT 25 MPH.
THUNDERSTORMS AND SHOWERS IN THIS LINE HAVE HAD A HISTORY OF
PRODUCING WIND GUSTS UP TO 60 MPH.

THIS STORM MAY AFFECT THE FOLLOWING NEARBY AREAS... NESHANIC...
HARLINGEN... ROYCE AND  MILLSTONE.

IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER NOW.  AFTER THE
STORM HAS PASSED...REPORT ANY SEVERE WEATHER OR FLOODING TO YOUR
LOCAL LAW ENFORCEMENT AGENCY AND HAVE THEM RELAY YOUR SEVERE WEATHER
REPORT ON TO THE NATIONAL WEATHER SERVICE.

SEVERE THUNDERSTORMS CONTAIN WINDS GREATER THAN 58 MILES AN HOUR...
DIME SIZE HAIL OR LARGER...VERY HEAVY RAINS AND DEADLY LIGHTNING.

STAY TUNED TO NOAA WEATHER RADIO...THE VOICE OF THE NATIONAL WEATHER
SERVICE...OR TO COMMERCIAL RADIO OR TELEVISION STATIONS FOR THE
LATEST STORM INFORMATION.

TFG

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 22, 12:45 PM ESTSevere Thunderstorm WarningPHIMercer45 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 1997Every severe thunderstorm warning in 1997

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.