Alert archive / Nebraska / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 113, NWS North Platte, NE

September 5, 1986Custer County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Sep 5, 1986, 6:35 PM CDT for Custer County, Nebraska. It was in force for 47 min.

The area

The counties it named.

The facts

Issued
Sep 5, 1986, 6:35 PM CDT (23:35 UTC)
Expired
Sep 5, 1986, 7:22 PM CDT
In force
47 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Custer 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, 11.6 hours before the alert went out and 79 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 1986-09-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 10 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 1986-09-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -32 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
10 J/kg
Mixed-layer CIN
-325 J/kg
Mixed-layer LCL
1194 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
-32 m²/s²
0-3 km storm-relative helicity
210 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 052335
SVRLBF
NEC041-060022-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
635 PM CDT FRI SEP 5 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 722 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY OF

CENTRAL NEBRASKA...EASTERN CUSTER

AT 620 PM CDT A SEVERE THUNDERSTORM WAS REPORTED BY SPOTTERS AT
ANSLEY NEBRASKA. THIS THUNDERSTORM WAS MOVING SOUTHEAST AT 20 MPH.
PERSONS IN EASTERN CUSTER COUNTY INCLUDING THE TOWN OF MASON CITY
SHOULD BE PREPARED FOR LARGE HAIL AND DAMAGING WINDS.

IF THREATENING WEATHER APPROACHES...GET TO A REINFORCED SHELTER AND
PREPARE FOR STRONG DAMAGING WIND..LARGE HAILQ..VERY HEAVY RAIN..AND
DANGEROUS LIGHTNING.

REPORTS OF SEVERE WEATHER OR DAMAGE CAN BE GIVEN TO A LAW
ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.

BRITTON 2325

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 5, 6:26 PM CDTSevere Thunderstorm WarningLBFGrant, Hooker64 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1986Every severe thunderstorm warning 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.