Alert archive / Nebraska / Tornado Warnings in 1993

Tornado Warning 13, NWS Cheyenne, WY

June 23, 1993Box Butte County, Nebraska

NWS Cheyenne, WY issued this tornado warning at Jun 23, 1993, 1:50 PM MDT for Box Butte County, Nebraska. It was in force for 25 min.

The area

The counties it named.

The facts

Issued
Jun 23, 1993, 1:50 PM MDT (19:50 UTC)
Expired
Jun 23, 1993, 2:15 PM MDT
In force
25 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

County Box Butte County, NE

The nearest sounding before it

Rapid City, SD (KRAP), launched 12:00Z, 7.8 hours before the alert went out and 206 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, Rapid City, SD at 12:00Z on 1993-06-23Temperature 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 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Rapid City, SD at 12:00Z on 1993-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 169 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
996 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
169 m²/s²
0-3 km storm-relative helicity
311 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 231950
TORBFF
NEC013-232015-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
150 PM MDT WED JUN 23 1993

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 215 PM MDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE PANHANDLE OF NEBRASKA
      EASTERN BOX BUTTE...THE CITY OF ALLIANCE

A TORNADO WAS SPOTTED BY A CITIZEN AT 145 PM MDT 3 MILES NORTH OF
ALLIANCE.

MOVEMENT WAS NORTHEAST AT 25 MPH.

TAKE COVER NOW.

KYLE

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 23, 2:08 PM MDTSevere Thunderstorm WarningCYSBox Butte37 min
Jun 23, 2:21 PM MDTTornado WarningCYSBox Butte39 min
Jun 23, 2:45 PM MDTSevere Thunderstorm WarningCYSMorrill30 min
Jun 23, 3:19 PM MDTSevere Thunderstorm WarningCYSMorrill26 min
Jun 23, 3:45 PM MDTSevere Thunderstorm WarningCYSGarden15 min
Jun 23, 3:53 PM MDTSevere Thunderstorm WarningCYSKimball37 min
Jun 23, 4:12 PM MDTSevere Thunderstorm WarningCYSCheyenne33 min
Jun 23, 4:25 PM MDTSevere Thunderstorm WarningCYSGarden50 min
Jun 23, 4:34 PM MDTSevere Thunderstorm WarningCYSCheyenne56 min

Nearby

Tornado Warnings in Nebraska, 1993Every tornado warning in 1993Tornadoes in 1993

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.