Alert archive / Nebraska / Tornado Warnings in 1986

Tornado Warning 18, NWS North Platte, NE

July 2, 1986Hitchcock County, Nebraska

NWS North Platte, NE issued this tornado warning at Jul 2, 1986, 4:00 PM CDT for Hitchcock County, Nebraska. It was in force for 30 min.

The area

The counties it named.

The facts

Issued
Jul 2, 1986, 4:00 PM CDT (21:00 UTC)
Expired
Jul 2, 1986, 4:30 PM CDT
In force
30 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Hitchcock County, NE

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

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 9.0 hours before the alert went out and 112 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, N. Platte/Lee Bi, NE at 12:00Z on 1986-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 391 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, N. Platte/Lee Bi, NE at 12:00Z on 1986-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 110 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
391 J/kg
Mixed-layer CIN
-132 J/kg
Mixed-layer LCL
1213 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
110 m²/s²
0-3 km storm-relative helicity
206 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 022100
TORLBF
NEC087-022130-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
400 PM CDT WED JUL 2 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 430 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF

SOUTHWEST NEBRASKA...SOUTHERN HITCHCOCK

AT 356 PM CDT A TORNADO WAS REPORTED BY SPOTTERS 5 MILES SOUTH OF
TRENTON NEBRASKA MOVING SOUTH.

IF YOU ARE NEAR THE PATH OF THIS TORNADO...YOU SHOULD GO TO A
BASEMENT SHELTER IF AVAILABLE.  OTHERWISE GO TO A CENTRAL ROOM ON
THE LOWEST FLOOR POSSIBLE.  ABANDON CARS AND MOBILE HOMES FOR A
REINFORCED BUILDING.

REPORTS OF TORNADOS OR TORNADO DAMAGE SHOULD BE GIVEN TO A LAW
ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.

MEYER 2059Z

The office that day

Everything else NWS North Platte, NE issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 2, 2:45 PM CDTSevere Thunderstorm WarningLBFHitchcock, Red Willow58 min
Jul 2, 3:46 PM CDTSevere Thunderstorm WarningLBFHitchcock44 min

Nearby

Tornado Warnings in Nebraska, 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.