Alert archive / Nebraska / Tornado Warnings in 1993

Tornado Warning 12, NWS Cheyenne, WY

June 22, 1993Deuel County, Nebraska

NWS Cheyenne, WY issued this tornado warning at Jun 22, 1993, 5:46 PM MDT for Deuel County, Nebraska. It was in force for 29 min.

The area

The counties it named.

The facts

Issued
Jun 22, 1993, 5:46 PM MDT (23:46 UTC)
Expired
Jun 22, 1993, 6:15 PM MDT
In force
29 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

County Deuel County, NE

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.8 hours before the alert went out and 145 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 1993-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 505 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 1993-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 269 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
505 J/kg
Mixed-layer CIN
-159 J/kg
Mixed-layer LCL
753 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
269 m²/s²
0-3 km storm-relative helicity
319 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBFF 222346
TORBFF
NEC049-230015-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
546 PM MDT TUE JUN 22 1993

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 615 PM MDT FOR PEOPLE IN THE FOLLOWING COUNTY

   IN THE PANHANDLE OF NEBRASKA
      EASTERN DEUEL

AT 544 PM MDT A TORNADO WAS 12 MILES EAST OF CHAPPELL...OR 38 MILES
EAST OF SIDNEY.

MOVEMENT WAS EAST AT 30 MPH.

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

IF YOU ARE CAUGHT OUTSIDE...FIND SHELTER IN A NEARBY REINFORCED
BUILDING.  AS A LAST RESORT...TAKE SHELTER IN A CULVERT...DITCH OR
LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

THIS WARNING CONTINUES THE WARNING THAT EXPIRED AT 545 PM MDT.

KYLE

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 22, 2:36 PM MDTTornado WarningCYSMorrill39 min
Jun 22, 3:23 PM MDTSevere Thunderstorm WarningCYSMorrill37 min
Jun 22, 4:00 PM MDTTornado WarningCYSCheyenne, Morrill30 min
Jun 22, 4:02 PM MDTSevere Thunderstorm WarningCYSSheridan58 min
Jun 22, 4:33 PM MDTSevere Thunderstorm WarningCYSGarden27 min
Jun 22, 5:06 PM MDTSevere Thunderstorm WarningCYSDeuel, Garden39 min
Jun 22, 5:19 PM MDTTornado WarningCYSDeuel26 min
Jun 22, 5:28 PM MDTSevere Thunderstorm WarningCYSGarden32 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.