Alert archive / Delaware / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 109, NWS Philadelphia/Mount Holly

October 27, 1995Kent County, New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Oct 27, 1995, 10:21 PM EDT for Kent County, New Castle County, Delaware. It was in force for 54 min.

The area

The counties it named.

The facts

Issued
Oct 27, 1995, 10:21 PM EDT (02:21 UTC)
Expired
Oct 27, 1995, 11:15 PM EDT
In force
54 min
Issued by
NWS Philadelphia/Mount Holly
Area
Whole counties

Counties Kent County, DE, New Castle County, DE

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 00:00Z, 2.4 hours before the alert went out and 157 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 00:00Z on 1995-10-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 816 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 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 00:00Z on 1995-10-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 177 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
816 J/kg
Mixed-layer CIN
-65 J/kg
Mixed-layer LCL
890 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
177 m²/s²
0-3 km storm-relative helicity
211 m²/s²
Significant tornado parameter
0.6
Supercell composite
5.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPHL 280220
SVRPHL
DEC001-003-280315-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PHILADELPHIA/MOUNT HOLLY NJ
1021 PM EDT FRI OCT 27 1995
 
THE NATIONAL WEATHER SERVICE IN PHILADELPHIA/MOUNT HOLLY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1115 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN  DELAWARE
 
   ...KENT COUNTY...NEW CASTLE COUNTY
 
AND THE ADJACENT COASTAL WATERS
 
 
AT 1015 PM WEATHER SERVICE RADAR INDICATED POSSIBLE SEVERE THUNDER
STORMS ABOUT TO MOVE INTO KENT AND NEW CASTLE COUNTIES. THESE STORMS ARE
MOVING NORTHEAST AT 40 TO 50 MPH AND HAVE A HISTORY OF DOWNING TREES AND
OTHER WIND DAMAGE IN NORTHEAST MARYLAND.
 
THESE ARE DANGEROUS STORMS.  PREPARE FOR STRONG DAMAGING WINDS...
LARGE HAIL...HEAVY RAINS AND DEADLY LIGHTNING.  SHOULD THE STORM
APPROACH MOVE INSIDE QUICKLY. DO NOT STAND NEAR WINDOWS.  MOBILE
HOMES ARE MOST VULNERABLE TO HIGH WINDS AND SHOULD BE AVOIDED.
 
A TORNADO WATCH CONTINUES FOR EASTERN MARYLAND...DELAWARE AND NEW
JERSEY UNTIL 100 AM EDT.  REMEMBER SEVERE THUNDERSTORMS CAN AND
OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCED WARNING.
 
AMC

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 28, 4:45 AM EDTFlash Flood WarningPHINew Castle6 hr

Nearby

Severe Thunderstorm Warnings in Delaware, 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.