Alert archive / Nebraska / Tornado Warnings in 1990

Tornado Warning 9, NWS Cheyenne, WY

May 23, 1990Kimball County, Nebraska

NWS Cheyenne, WY issued this tornado warning at May 23, 1990, 3:40 PM MDT for Kimball County, Nebraska. It was in force for 35 min.

The area

The counties it named.

The facts

Issued
May 23, 1990, 3:40 PM MDT (21:40 UTC)
Expired
May 23, 1990, 4:15 PM MDT
In force
35 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

County Kimball 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

Denver, CO (KDEN), launched 12:00Z, 9.7 hours before the alert went out and 153 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, Denver, CO at 12:00Z on 1990-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 1990-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2246 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
-12 m²/s²
0-3 km storm-relative helicity
39 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBFF 232144 COR
TORBFF
NEC105-232215-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE...CORRECTED
340 PM MDT WED MAY 23 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 415 PM MDT FOR PEOPLE IN THE FOLLOWING COUNTY

   IN THE PANHANDLE OF NEBRASKA
      WESTERN KIMBALL

AT 338PM MDT...A TORNADO WAS INDICATED BY RADAR 55 MILES WEST OF
SIDNEY NEBRASKA...ON THE STATELINE NEAR THE TOWN OF PINE BLUFFS
WYOMING. THE TORNADO WAS MOVING EAST AROUND 25 MILES AN HOUR.

THIS WARNING DOES NOT INCLUDE THE CITY OF KIMBALL NEBRASKA.

TAKE SHELTER IN A BASEMENT IF AVAILABLE.  OTHERWISE GO TO A SMALL
INTERIOR ROOM ON TcHE LOWEST FLOOR.  STAY AWAY FROM WINDOWS.  ABANDON
CARS AND MOBILE HOMES.

PFEIFFER

The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 23, 4:16 PM MDTTornado WarningCYSKimball29 min
May 23, 5:56 PM MDTSevere Thunderstorm WarningCYSDawes64 min

Nearby

Tornado Warnings in Nebraska, 1990Every tornado warning in 1990Tornadoes in 1990

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.