Alert archive / Delaware / Tornado Warnings in 1986

Tornado Warning 7, NWS Wilmington, NC

September 23, 1986New Castle County, Delaware

NWS Wilmington, NC issued this tornado warning at Sep 23, 1986, 5:30 PM EDT for New Castle County, Delaware. It was in force for 45 min.

The area

The counties it named.

The facts

Issued
Sep 23, 1986, 5:30 PM EDT (21:30 UTC)
Expired
Sep 23, 1986, 6:15 PM EDT
In force
45 min
Issued by
NWS Wilmington, NC
Area
Whole counties

County New Castle County, DE

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Atlantic City In, NJ (KACY), launched 12:00Z, 9.5 hours before the alert went out and 99 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, Atlantic City In, NJ at 12:00Z on 1986-09-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 47 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Atlantic City In, NJ at 12:00Z on 1986-09-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 123 square meters per square second.1939Sfc1 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
47 J/kg
Mixed-layer CIN
-163 J/kg
Mixed-layer LCL
643 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
123 m²/s²
0-3 km storm-relative helicity
164 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KILG 232130
TORILG
DEC003-232215-

BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE WILMINGTON DE
530 PM EDT TUE SEP 23 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING EFFECTIVE
UNTIL 615 PM FOR THE FOLLOWING COUNTY IN...

DELAWARE...SOUTHERN NEW CASTLE

AT 529 PM EDT A FUNNEL CLOUD WAS SIGHTED BY AN AIRCRAFT PILOT NEAR
CHESAPEAKE CITY MARYLAND.  THE STORM ASSOCIATED WITH THIS FUNNEL
CLOUD WAS MOVING TOWARD THE SOUTHEAST AT 30 MILES AN HOUR.

IF THREATENING WEATHER APPROACHES...SEEK SHELTER IN A BASEMENT OR A
CENTRAL INTERIOR ROOM ON THE LOWEST FLOOR. ABANDON CARS AND MOBILE
HOMES FOR A REINFORCED BUILDING.

CEDRONE

Nearby

Tornado Warnings in Delaware, 1986Every tornado warning in 1986Tornadoes in 1986

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.