Alert archive / Nebraska / Tornado Warnings in 1992

Tornado Warning 12, NWS Cheyenne, WY

July 6, 1992Sheridan County, Nebraska

NWS Cheyenne, WY issued this tornado warning at Jul 6, 1992, 7:13 PM MDT for Sheridan County, Nebraska. It was in force for 17 min.

The area

The counties it named.

The facts

Issued
Jul 6, 1992, 7:13 PM MDT (01:13 UTC)
Expired
Jul 6, 1992, 7:30 PM MDT
In force
17 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

County Sheridan County, NE

The nearest sounding before it

Rapid City, SD (KRAP), launched 00:00Z, 1.2 hours before the alert went out and 178 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 00:00Z on 1992-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 222 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, Rapid City, SD at 00:00Z on 1992-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -71 square meters per square second.1939587897117Sfc1 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
222 J/kg
Mixed-layer CIN
-211 J/kg
Mixed-layer LCL
2301 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
-71 m²/s²
0-3 km storm-relative helicity
53 m²/s²
Significant tornado parameter
0.0
Supercell composite
-4.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBFF 070113
TORBFF
NEC161-070130-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
713 PM MDT MON JUL 6 1992

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 730 PM MDT FOR PEOPLE IN THE FOLLOWING COUNTY

   IN THE PANHANDLE OF NEBRASKA
      SOUTHEAST SHERIDAN

AT 712 PM MDT A TORNADO WAS INDICATED BY RADAR 34 MILES
EAST OF ALLIANCE...OR NEAR THE TOWN OF BINGHAM.

THIS WARNING REPLACES THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN
SHERIDAN COUNTY.

MOVEMENT WAS TO THE EAST AT 30 TO 35 MPH.

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

TAKE COVER NOW.

KYLE

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, Jul 6, 2:49 PM MDT, 4 hours 24 minutes before
NEZ001-005-011-062140-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
249 PM MDT MON JUL 6 1992

...THUNDERSTORMS HAVE FORMED OVER THE SOUTHERN PANHANDLE...

AT 247 PM MDT...RADAR INDICTED A FEW THUNDERSTORMS WERE OVER THE
SOUTHERN PART OF THE NEBRASKA PANHANDLE.  THE THUNDERSTORMS WERE LOCATED
15 MILES NORTHEAST OF SIDNEY...AND 12 MILES EAST OF SIDNEY...OVER
EASTERN CHEYENNE COUNTY.  THE STORMS WERE MOVING EAST AT 30 MPH.

BR'IEF HEAVY RAIN...SMALL HAIL AND DEADLY LIGHTING WILL BE POSSIBLE WITH
THESE STORMS OVER DEUEL...EASTERN CHEYENNE AND SOUTHERN GARDEN COUNTIES
OF THE NEBRASKA PANHANDLE UNTIL 340 PM MDT.
EMANUEL
Special weather statement, Jul 6, 4:28 PM MDT, 2 hours 45 minutes before
NEZ001-005-011-070000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
428 PM MDT MON JUL 6 1992

...THUNDERSTORMS OVER GARDEN COUNTY...

AT 425 PM MDT...RADAR INDICTED AN AREA OF THUNDERSTORMS OVER GARDEN
COUNTY...JUST NORTH OF OSHKOSH.  THE THUNDERSTORMS WERE LOCATED 36 MILES
NORTHEAST OF SIDNEY...OR A FEW MILES NORTH OF OSHKOSH.  OTHER SHOWERS OR
THUNDERSTORMS WERE IN EASTERN WYOMING AND WILL MOVE INTO SIOUX COUNTY
BY 5 PM.
~
THE SHOWERS AND STORMS WERE MOVING EAST AT 35 MPH.

BRIEF HEAVY RAIN...SMALL HAIL AND DANGEROUS LIGHTNING WILL BE POSSIBLE
WITH THESE STORMS OVER GARDEN AND SIOUX COUNTIES UNTIL AROUND 6 PM MDT.
KYLE

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 6:22 PM MDTSevere Thunderstorm WarningCYSBox Butte38 min
Jul 6, 6:49 PM MDTSevere Thunderstorm WarningCYSSheridan26 min
Jul 6, 7:34 PM MDTSevere Thunderstorm WarningCYSMorrill26 min
Jul 6, 8:00 PM MDTSevere Thunderstorm WarningCYSMorrill30 min
Jul 6, 8:31 PM MDTSevere Thunderstorm WarningCYSGarden, Morrill29 min

Nearby

Tornado Warnings in Nebraska, 1992Every tornado warning in 1992Tornadoes in 1992

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.