Alert archive / Nebraska / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 113, NWS Cheyenne, WY

August 7, 1994Garden County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at Aug 7, 1994, 5:49 PM MDT for Garden County, Nebraska. It was in force for 22 min.

The area

The counties it named.

The facts

Issued
Aug 7, 1994, 5:49 PM MDT (23:49 UTC)
Expired
Aug 7, 1994, 6:11 PM MDT
In force
22 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

County Garden 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 155 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 1994-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 84 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 1994-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 square meters per square second.1939Sfc1 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
84 J/kg
Mixed-layer CIN
-683 J/kg
Mixed-layer LCL
2520 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
141 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 072349 RRA
SVRBFF
NEC069-080030-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
549 PM MDT SUN AUG 7 1994
 
THE NATIONAL WEATHER SERVICE IN SCOTTSBLUFF HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  630 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN THE NEBRASKA PANHANDLE
 
   ...EASTERN GARDEN COUNTY
 
AT 547 PM MDT RADAR SHOWED TWO SEVERE THUNDERSTORMS OVER EASTERN GARDEN
COUNTY. ONE WAS 40 MILES SOUTHEAST OF ALLIANCE...WHILE ANOTHER WAS 38
MILES NORTHEAST OF SIDNEY...OR 6 MILES SOUTH OF OSHKOSH.  THE STORMS
WERE MOVING SOUTHEAST AT 15 MILES AN HOUR.
 
THIS WARNING REPLACES THE SEVERE THUNDERSTORM WARNING FOR NORTHEAST
GAR\DEN COUNTY...WHICH WAS IN EFFECT UNTIL 615 PM MDT.
 
 
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.
EMANUEL

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, Aug 7, 3:33 PM MDT, 2 hours 16 minutes before
NEZ001>004-019>022-054>056-072230-

SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
333 PM MDT SUN AUG 7 1994

...THUNDERSTORMS HAVE FORMED ACROSS THE NORTHEAST NEBRASKA PANHANDLE...

AT 331 PM MDT...RADAR INDICATED THAT HEAVY THUNDERSTORMS HAD FORMED
OVER CENTRAL SHERIDAN COUNTY OF THE NORTHEAST NEBRASKA PANHANDLE.
THESE STORM WERE LOCATED FROM 20 MILES NORTH OF ALLIANCE TO 40 MILES
NORTHEAST OF ALLIANCE. THE STORMS WERE MOVING EAST AT 15 MILES AN HOUR.

VERY HEAVY RAIN...SMALL HAIL...GUSTY WIND AND DEADLY LIGHTNING WILL
LIKELY BE PRODUCED BY THESE STORMS OVER SHERIDAN COUNTY THROUGH 430
PM MDT.
EMANUEL
Special weather statement, Aug 7, 3:33 PM MDT, 2 hours 16 minutes before
NEZ001>004-019>022-054>056-072230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
333 PM MDT SUN AUG 7 1994

...THUNDERSTORMS HAVE FORMED ACROSS THE NORTHEAST NEBRASKA PANHANDLE...

AlT 331
Special weather statement, Aug 7, 3:34 PM MDT, 2 hours 15 minutes before
NEZ001>004-019>022-054>056-072230-

SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
333 PM MDT SUN AUG 7 1994

...THUNDERSTORMS HAVE FORMED ACROSS THE NORTHEAST NEBRASKA PANHANDLE...

AT 331 PM MDT...RADAR INDICATED THAT HEAVY THUNDERSTORMS HAD FORMED
OVER CENTRAL SHERIDAN COUNTY OF THE NORTHEAST NEBRASKA PANHANDLE.
THESE STORM WERE LOCATED FROM 20 MILES NORTH OF ALLIANCE TO 40 MILES
NORTHEAST OF ALLIANCE. THE STORpMS WERE MOVING EAST AT 15 MILES AN HOUR.

VERY HEAVY RAIN...SMALL HAIL...GUSTY WIND AND DEADLY LIGHTNING WILL
LIKELY BE PRODUCED BY THESE STORMS OVER SHERIDAN COUNTY THROUGH 430
PM MDT.
EMANUEL
Special weather statement, Aug 7, 4:54 PM MDT, 55 minutes before
NEZ001>004-019>022-054>056-080000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
454 PM MDT SUN AUG 7 1994

...A COUPLE OF STRONG THUNDERSTORMS OVER THE EASTERN PANHANDLE...

AT 452 PM MDT RADAR SHOWED TWO STRONG THUNDERSTORMS OVER SOUTHERN
SHERIDAN COUNTY OF THE EASTERN NEBRASKA PANHANDLE. ONE STORM WAS
10 MILES EAST OF ALLIANCE...WHILE THE OTHER WAS 23 MILES EAST OF
ALLIANCE.  THE STORMS WERE MOVING EAST AT 15 MILES AN HOUR.

HEAVY RAIN...GUSTY WIND...DEADLY LIGHTNING AND SMALL HAIL MAY OCCUR
WITH THESE STORMS OVER SOUTHERN SHERIDAN AND NORTHERN GARDEN
COUNTIES THROUGH 6 PM MDT.
EMANUEL
Special weather statement, Aug 7, 5:25 PM MDT, 24 minutes before
NEZ005-080030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE VALENTINE NE
ISSUED BY SCOTTSBLUFF NE
523 PM MDT (845 PM CDT) SAT AUG 6 1994

...A FEW THUNDERSTORMS MOVING THROUGH CHERRY COUNTY...

AT 522 PM MDT RADAR SHOWED A FEW THUNDERSTORMS MOVING THROUGH CHERRY
COUNTY IN NORTHERN CENTRAL NEBRASKA. THE STRONGEST STORM WAS LOCATED
40 MILES SOUTHWEST OF VALENTINE NEBRASKA. THE STORM WAS MOVING TO THE
SOUTHEAST AT 15 MPH.

HEAVY RAIN...GUSTY WIND...AND SMALL HAIL MAY BE PRODUCED BY THESE STORMS
AS THEY MOVE OVER SOUTHERN CHERRY COUNTY THROUGH 630 PM MDT.
EASTLACK
Special weather statement, Aug 7, 5:28 PM MDT, 21 minutes before
NEZ005-080030-

SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE VALENTINE NE
ISSUED BY SCOTTSBLUFF NE
523 PM MDT (845 PM CDT) SAT AUG 6 1994

...A FEW THUNDERSTORMS MOVING THROUGH CHERRY COUNTY...

AT 522 PM MDT RADAR SHOWED A FEW THUNDERSTORMS MOVING THROUGH CHERRY
COUNTY IN NORTH CENTRAL NEBRASKA. THE STRONGEST STORM WAS LOCATED
40 MILES SOUTHWEST OF VALENTINE NEBRASKA. THE STORM WAS MOVING TO THE
SOUTHEAST AT 15 MPH.

HEAVY RAIN...GUSTY WIND...AND SMALL HAIL MAY BE PRODUCED BY THESE STORMS
AS THEY MOVE OVER SOUTHERN CHERRY COUNTY THROUGH 630 PM MDT.
EASTLACK

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 5:36 PM MDTSevere Thunderstorm WarningCYSGarden39 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1994Every severe thunderstorm warning in 1994

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.