Alert archive / Nebraska / Tornado Warnings in 1986

Tornado Warning 4, NWS North Platte, NE

April 3, 1986Lincoln County, Nebraska

NWS North Platte, NE issued this tornado warning at Apr 3, 1986, 6:15 PM CST for Lincoln County, Nebraska. It was in force for 15 min.

The area

The counties it named.

The facts

Issued
Apr 3, 1986, 6:15 PM CST (00:15 UTC)
Expired
Apr 3, 1986, 6:30 PM CST
In force
15 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Lincoln 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 00:00Z, 0.3 hours before the alert went out and 15 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 00:00Z on 1986-04-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 132 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 00:00Z on 1986-04-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 372 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
132 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
593 m above ground
0-6 km bulk shear
90 kt
0-1 km storm-relative helicity
372 m²/s²
0-3 km storm-relative helicity
543 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 040015
TORLBF
NEC111-040030-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
615 PM CST THU APR 3 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 630 PM CST FOR PEOPLE IN THE FOLLOWING COUNTY OF


SOUTHWEST NEBRASKA...CENTRAL LINCOLN

AT 553 PM CST A TORNADO WAS REPORTED BY SPOTTERS AND NATIONAL
WEATHER SERVICE PERSONNEL 3 MILES EAST OF NORTH PLATTE NEBRASKA
MOVING WEST 35 TO 40 MPH.

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

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.