Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 100, NWS Philadelphia/Mount Holly

October 14, 1995Hunterdon County, Warren County, New Jersey; Bucks County, Montgomery County, Northampton County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Oct 14, 1995, 8:30 PM EDT for Hunterdon County, Warren County, New Jersey; Bucks County, Montgomery County, Northampton County, Pennsylvania. It was in force for 45 min.

The area

The counties it named.

The facts

Issued
Oct 14, 1995, 8:30 PM EDT (00:30 UTC)
Expired
Oct 14, 1995, 9:15 PM EDT
In force
45 min
Issued by
NWS Philadelphia/Mount Holly
Area
Whole counties

Counties Hunterdon County, NJ, Warren County, NJ, Bucks County, PA, Montgomery County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 91 km from the middle of the area, began a volume at 00:37 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

Brookhaven, NY (KOKX), launched 00:00Z, 0.5 hours before the alert went out and 195 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 00:00Z on 1995-10-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 369 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 1995-10-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 366 square meters per square second.1939587897Sfc1 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
369 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
565 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
366 m²/s²
0-3 km storm-relative helicity
379 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPHL 150030 RRA
SVRPHL
NJC019-041-PAC017-091-095-150115-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PHILADELPHIA/MOUNT HOLLY NJ
830 PM EDT SAT OCT 14 1995
 
THE NATIONAL WEATHER SERVICE IN PHILADELPHIA/MOUNT HOLLY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  915 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN  NEW JERSEY
 
   ...HUNTERDON COUNTY...WARREN COUNTY
 
IN  PENNSYLVANIA
 
   ...BUCKS COUNTY...NORTHERN MONTGOMERY COUNTY
   ...NORTHAMPTON COUNTY
 
WINDS GUSTED TO 63 MILES AN HOUR AT ALLENTOWN-BETHLEHEM-EASTON AIRPORT
AT ABOUT 818 PM...AND THE THUNDERSTORMS RESPONSIBLE FOR THE STRONG WINDS
WERE MOVING NORTHEASTWARD AROUND 45 MILES AN HOUR.
 
SEVERE THUNDERSTORMS PRODUCE WINDS IN EXCESS OF 58 MILES PER HOUR...
LARGE HAIL...AND DEADLY LIGHTNING.  IF THREATENING WEATHER SUDDENLY
APPROACHES YOU...BOATERS SHOULD BE PREPARED TO MOVE TO SAFE HARBOR.
IF CAUGHT OUT ON THE OPEN WATER...STAY BELOW DECK...IF POSSIBLE...AND
AWAY FROM UNGROUNDED METAL OBJECTS.
 
JRP/TFG/CJ

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 14, 8:18 PM EDTSevere Thunderstorm WarningPHICamden27 min
Oct 14, 8:44 PM EDTSevere Thunderstorm WarningPHIBurlington46 min
Oct 14, 8:57 PM EDTSevere Thunderstorm WarningPHIMercer, Morris, Somerset48 min
Oct 14, 9:25 PM EDTSevere Thunderstorm WarningPHIMiddlesex, Monmouth50 min
Oct 14, 9:25 PM EDTSevere Thunderstorm WarningPHIOcean50 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 1995Severe Thunderstorm Warnings in New Jersey, 1995Every severe thunderstorm warning in 1995

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.