Alert archive / Nebraska / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 3, NWS Cheyenne, WY

April 24, 1986Deuel County, Garden County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at Apr 24, 1986, 7:30 PM MST for Deuel County, Garden County, Nebraska. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Apr 24, 1986, 7:30 PM MST (02:30 UTC)
Expired
Apr 24, 1986, 8:30 PM MST
In force
60 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

Counties Deuel County, NE, Garden County, NE

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.5 hours before the alert went out and 147 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 00:00Z on 1986-04-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 19 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 00:00Z on 1986-04-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 square meters per square second.19395878Sfc1 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
19 J/kg
Mixed-layer CIN
-83 J/kg
Mixed-layer LCL
1609 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
111 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 250230
SVRBFF
NEC049-069-250330-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
730 PM MST THU APR 24 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 830 PM MST FOR PEOPLE IN THE FOLLOWING 
COUNTIES OF

PANHANDLE OF NEBRASKA...NORTHERN DEUEL AND SOUTHERN GARDEN

AT 726 PM MST..RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES
NORTHEAST OF CHAPPEL NEBRASKA WHICH IS 20 MILES EAST OF SIDNEY
NEBRASKA MOVING TO THE NORTHEAST AT 30 MILES AN HOUR.

 REMEMBER A SEVERE THUNDERSTORM CAN PRODUCE DAMAGING WINDS IN EXCESS
 OF 60 MPH..LARGE HAIL..DEADLY LIGHTNING AND VERY HEAVY RAIN THAT
 CAN QUICKLY FLOOD LOW LYING AREAS.

 THESE STORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE
 OR NO ADVANCE WARNING..SO BE ON THE LOOKOUT AND BE PREPARED TO MOVE
 TO A PLACE OF SAFETY IF ONE IS SPOTTED.

 MEKIS

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, Apr 24, 4:21 PM MST, 3 hours 9 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
420 PM MST THU APR 24 1986

AT 415 PM A STRONG THUNDERSTORM WAS MOVING NORTH NORTHEAST AT 25 MPH
OUT OF WELD COUNTY COLORADO INTO SOUTHEAST LARAMIE COUNTY WYOMING.  AT
THIS RATE OF MOVEMENT...THE STORM IS EXPECTED TO PASS JUST EAST OF
CARPENTER BETWEEN 430 AND 445 PM.

STRONG GUSTY WINDS...SMALL HAIL...AND FREQUENT LIGHTNING ARE LIKELY
WITH THIS STORM.  IF SEVERE WEATHER IS SIGHTED...CALL THE COUNTY
SHERRIF...OR THE NATIONAL WEATHER SERVICE.
GLANCY
Special weather statement, Apr 24, 4:42 PM MST, 2 hours 48 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE ALLIANCE NE
4.30 PM MST THU APR 24 1986

AT 4.30 PM MST...AN ISOLATED THUNDERSTORM WITH HEAVY RAIN..SMALL HAIL
AND GUSTY WINDS WAS LOCATED OVER THE SOUTHEAST CORNER OF WYOMING 30
MILES EAST OF CHEYENNE.

THE THUNDERSTORM WAS MOVING TO THE NORTHEAST AT 35 MILES AN HOUR AND
WILL ENTER INTO THE SOUTHWEST NEBRASKA PANHANDLE BY 5.00 PM MST.

PERSONS OVER WEST KIMBALL COUNTY OF THE PANHANDLE SHOULD REMAIN ALERT
TO THE APPROACH OF THIS STORM AND BE PREPARED TO MOVE TO A PLACE OF
SHELTER.

OTHER SCATTERED THUNDERSTORMS AND SHOWERS WERE ALSO OVER THE EAST PLAINS
OF WYOMING..THE NORTHWEST NEBRASKA PANHANDLE AND SOUTHWEST SOUTWH DAKOTA.

MOVEMENT WAS TO THE NORTHEAST AT 35 MILES AN HOUR.
WIRTH
Special weather statement, Apr 24, 5:40 PM MST, 1 hour 50 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE ALLIANCE NE
5.30 PM MST THU APR 24 1986

AT 5.30 PM MST...ISOLATED THUNDERSTORMS ACOMPANIED WITH BRIEF HEAVY
RAIN..SMALL HAIL AND GUSTY WINDS WERE LOCATED OVER THE SOUTHWEST
NEBRASKA PANHANDLE..40 MILES WEST AND 20 MILES NORTHWEST OF SIDNEY
NEBRASKA.

THE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 35 MILES AN HOUR.

PERSONS OVER KIMBALL AND WEST CHEYENNE COUNTIES OF THE PANHANDLE
INCLUDING THE TOWN OF KIMBALL SHOULD BE PREPARED TO SEEK SHELTER WITH
THE APPROACH OF THESE STORMS.

OTHER HEAVY THUNDERSTORMS AND SHOWERS WERE ALSO OBSERVED OVER THE EAST
PLAINS OF WYOMING AND SOUTHWEST SOUTH DAKOTA EXTENDING FROM SOUTH OF
THE LARAMIE PEAK IN WYOMING TO SOUTHEAST OF RAPID CITY.

MOVEMENT WAS TO THE NORTHEAST AT 35 MILES AN HOUR.
WIRTH
Special weather statement, Apr 24, 6:21 PM MST, 1 hour 9 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
620 PM MST THU APR 24 1986

...STRONG THUNDERSTORMS CONTINUE TO DEVELOP OVER THE SOUTH AND
NORTHWEST NEBRASKA PANHANDLE...

THUNDERSTORMS WERE IN WEST CHEYENNE AND SOUTH MORRILL COUNTIES
APPROXIMATELY 10 MILES WEST TO 20 MILES NORTH OF SIDNEY NEBRASKA.
ALSO OVER SIOUX COUNTY 20 TO 30 MILES NORTHWEST OF SCOTTSBLUFF NEBRASKA
AND 40 WEST OF CHADRON NEBRASKA.

THESE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 40 MILES AN HOUR.

BRIEF HEAVY RAIN..GUSTY WIND AND HAIL IS LIKELY WITH THESE STORMS
OVER SIOUX..CHEYENNE AND MORRILL COUNTIES UNTIL 730PM MST.
PEA SIZE TO MARBLE SIZE HAIL HAS BEEN REPORTED WITH THESE STORMS.
MEKIS
Special weather statement, Apr 24, 6:41 PM MST, 49 minutes before
SPECIAL WEATHER STATEMENT...CORRECTED...
NATIONAL WEATHER SERVICE CHEYENNE WY
640 PM MST THU APR 24 1986

AT 620 PM RADAR INDICATED SEVERAL STRONG THUNDERSTORMS IN NORTHWEST
PLATTE...AND NORTHERN GOSHEN COUNTIES.  THESE STORMS WERE MOVING
NORTHEAST ABOUT 20 MILES AN HOUR.  THE STRONGEST OF THESE STORMS WAS
LOCATED JUST SOUTHEAST OF GUERNSEY.

STRONG GUSTY WINDS...SMALL HAIL...AND FREQUENT LIGHTNING ARE LIKELY
WITH THESE THUNDERSTORMS THIS EVENING.  IF SEVERE WEATHER IS SIGHTED
...CALL THE COUNTY SHERRIF...OR THE NATIONAL WEATHER SERVICE.
GLANCY

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 24, 7:45 PM MSTSevere Thunderstorm WarningCYSSioux45 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1986Every severe thunderstorm warning in 1986

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.