Alert archive / Nebraska / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 64, NWS Cheyenne, WY

July 6, 1992Box Butte County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at Jul 6, 1992, 6:22 PM MDT for Box Butte County, Nebraska. It was in force for 38 min.

The area

The counties it named.

The facts

Issued: Jul 6, 1992, 6:22 PM MDT (00:22 UTC)
Expired: Jul 6, 1992, 7:00 PM MDT
In force: 38 min
Issued by: NWS Cheyenne, WY
Area: Whole counties

County Box Butte County, NE

The nearest sounding before it

Rapid City, SD (KRAP), launched 00:00Z, 0.4 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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 070022
SVRBFF
NEC013-070100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
622 PM MDT MON JUL 6 1992

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 700 PM MDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

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

AT 621 PM MDT A SEVERE THUNDERSTORM WAS OVER THE CITY OF ALLIANCE
TO 10 MILES NORTH OF ALLIANCE.

REPORTS FROM THIS STORM INCLUDED HAIL UP TO 3/4 OF AN INCH.

THE STORM WAS MOVING EAST AT 30 TO 35 MPH.

PREPARE FOR LARGE HAIL...DAMAGING WIND...HEAVY RAIN AND DANGEROUS
LIGHTNING BY TAKING COVER.  STAY AWAY FROM AREAS WHERE LOOSE ITEMS
CAN BECOME DANGEROUS FLYING DEBRIS.

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

KYLE

What forecasters said that day

The local office's own words before this severe thunderstorm 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, 3 hours 33 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, 1 hour 54 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.

Issued	Product	Office	Counties	Lasted
Jul 6, 6:49 PM MDT	Severe Thunderstorm Warning	CYS	Sheridan	26 min
Jul 6, 7:13 PM MDT	Tornado Warning	CYS	Sheridan	17 min
Jul 6, 7:34 PM MDT	Severe Thunderstorm Warning	CYS	Morrill	26 min
Jul 6, 8:00 PM MDT	Severe Thunderstorm Warning	CYS	Morrill	30 min
Jul 6, 8:31 PM MDT	Severe Thunderstorm Warning	CYS	Garden, Morrill	29 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1992 Every severe thunderstorm warning 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.