Alert archive / Nebraska / Tornado Warnings in 1986

Tornado Warning 30, NWS North Platte, NE

August 6, 1986Thomas County, Nebraska

NWS North Platte, NE issued this tornado warning at Aug 6, 1986, 7:53 PM CDT for Thomas County, Nebraska. It was in force for 57 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Aug 6, 1986, 7:53 PM CDT (00:53 UTC)
Expired: Aug 6, 1986, 8:50 PM CDT
In force: 57 min
Issued by: NWS North Platte, NE
Area: Whole counties

County Thomas County, NE

The radar

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

What was reported inside it

Time	Report	Where	Remark
Aug 6, 8:20 PM CDT	Tornado F2	Thomas, NE
Aug 6, 8:43 PM CDT	Tornado F1	Thomas, NE

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.9 hours before the alert went out and 87 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2131 J/kg
Mixed-layer CIN: -88 J/kg
Mixed-layer LCL: 2158 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 54 m²/s²
0-3 km storm-relative helicity: 241 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 12.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 070053
TORLBF
NEC171-070150-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
753 PM CDT WED AUG 6 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 850 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF

WEST CENTRAL NEBRASKA...THOMAS

AT 750 PM CDT RADAR INDICATED A POSSIBLE TORNADO 10 MILES NORTH OF
HALSEY NEBRASKA MOVING SOUTH AT 25 MPH.

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 0052Z

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 6, 8:24 PM CDT	Tornado Warning	LBF	Custer, Logan	56 min
Aug 6, 9:22 PM CDT	Tornado Warning	LBF	Custer, Lincoln, Logan	58 min
Aug 6, 10:14 PM CDT	Severe Thunderstorm Warning	LBF	Boyd, Holt, Keya Paha	56 min
Aug 6, 10:25 PM CDT	Tornado Warning	LBF	Custer	35 min
Aug 6, 10:50 PM CDT	Severe Thunderstorm Warning	LBF	Holt	55 min
Aug 7, 12:25 AM CDT	Severe Thunderstorm Warning	LBF	Boone	20 min

Nearby

Tornado Warnings in Nebraska, 1986 Every tornado warning in 1986 Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.