Alert archive / Nebraska / Tornado Warnings in 1986

Tornado Warning 14, NWS North Platte, NE

June 9, 1986Perkins County, Nebraska

NWS North Platte, NE issued this tornado warning at Jun 9, 1986, 7:51 PM MDT for Perkins County, Nebraska. It was in force for 24 min.

The area

The counties it named.

The facts

Issued
Jun 9, 1986, 7:51 PM MDT (01:51 UTC)
Expired
Jun 9, 1986, 8:15 PM MDT
In force
24 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Perkins 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, 1.9 hours before the alert went out and 93 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 1986-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 79 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°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 1986-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 170 square meters per square second.19395878Sfc1 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
79 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
1019 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
170 m²/s²
0-3 km storm-relative helicity
191 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 100151
TORLBF
NEC135-100215-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
851 PM CDT MON JUN 9 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 915 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF

SOUTHWEST NEBRASKA...PERKINS

AT 742 PM MDT RADAR INDICATED A POSSIBLE TORNADO 9 MILES SOUTHEAST
OF VENANGO NEBRASKA ..MOVING NORTHEAST AT 25 MILES PER HOUR.

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

SMALLFIELD 0149Z

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jun 9, 5:33 PM MDT, 2 hours 18 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
630 PM CDT MON JUN 9 1986

A LARGE AREA OF SHOWERS AND THUNDERSTORMS WERE LOCATED FROM SOUTHWEST
OF NORTH PLATTE NEBRASKA INTO CHERRY COUNTY OF NEBRASKA. MULLEN NEBRASKA
53 MILES SOUTHWEST OF VALENTINE NEBRASKA HAS REPORTED .62 HUNDREDTHS OF
A INCH FROM A THUNDERSTORM AND IS CONTINUING TO RAIN MODERATE TO HEAVY.

IN NORTH PLATTE NEBRASKA THE WEATHER SERVICE OFFICE REPORTED .22 OF AN
FROM A THUNDERSHOWER WHILE AN UNOFFICIAL REPORT 15 MILES SOUTHWEST OF
THE WEATHER SERVICE OFFICE REPORTED 1.25 INCHES FROM THE SAME STORM.

THE SHOWERS WERE MOVING TO THE NORTH AT AROUND 15 MPH.

SMALLFIELD

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 9, 6:49 PM MDTSevere Thunderstorm WarningLBFDundy41 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.