Alert archive / Nebraska / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 21, NWS Cheyenne, WY

June 4, 1994Dawes County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 4, 1994, 7:24 PM MDT for Dawes County, Nebraska. It was in force for 66 min.

The area

The counties it named.

The facts

Issued
Jun 4, 1994, 7:24 PM MDT (01:24 UTC)
Expired
Jun 4, 1994, 8:30 PM MDT
In force
66 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

County Dawes County, NE

The nearest sounding before it

Rapid City, SD (KRAP), launched 00:00Z, 1.4 hours before the alert went out and 152 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 1994-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 148 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 1994-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 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
148 J/kg
Mixed-layer CIN
-54 J/kg
Mixed-layer LCL
2411 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
250 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBFF 050127
SVRBFF
NEC045-050230-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
724 PM MDT SAT JUN 4 1994
 
THE NATIONAL WEATHER SERVICE IN SCOTTSBLUFF HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  830 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN THE NEBRASKA PANHANDLE
 
   ...DAWES COUNTY
 
AT 725 PM MDT... RAD INDICATED A SEVERE THUNDERSTORM CENTERED 10 MILES
NORTH OF CHADRON NEBRASKA. THE STORM WAS MOVING SOUTHEAST AT 25 MPH AND
WILL LIKELY PASS THROUGH THE CITY OF CHADRON BY 8PM MDT.
 
 
PREPARE FOR LARGE HAIL...DAMAGING WIND...HEAVY RAIN...AND DANGEROUS
LIGHTNING BY TAKING COVER.  STAY AWAY FROM AREAS WHERE LOOSE ITEDMS
CAN BECOME DANGEROUS FLYING DEBRIS.
 
RENZ

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 4, 6:13 PM MDTTornado WarningCYSSheridan37 min
Jun 4, 6:13 PM MDTTornado WarningCYSDawes62 min
Jun 4, 6:32 PM MDTTornado WarningCYSBox Butte28 min
Jun 4, 7:42 PM MDTSevere Thunderstorm WarningCYSSheridan63 min
Jun 4, 7:55 PM MDTSevere Thunderstorm WarningCYSSheridan19 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.