Alert archive / Wyoming / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 2, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Apr 24, 1986, 6:50 PM MST for Goshen County, Wyoming. It was in force for 40 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Apr 24, 1986, 6:50 PM MST (01:50 UTC)
- Expired
- Apr 24, 1986, 7:30 PM MST
- In force
- 40 min
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
County Goshen County, WY
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 24, 7:05 PM MST | Hail 2 | Goshen, WY |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Rapid City, SD (KRAP), launched 00:00Z, 1.8 hours before the alert went out and 251 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1022 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 88 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCYS 250159 COR SVRCYS WYC015-250230- BULLETIN IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING...CORRECTED... NATIONAL WEATHER SERVICE CHEYENNE WY 700 PM MDT THU APR 24 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 730 PM FOR PEOPLE IN THE FOLLOWING COUNTY OF SOUTHEAST WYOMING..NORTHERN GOSHEN AT 640 PM RADAR SHOWED A SEVERE THUNDERSTORM 5 MILES EAST OF GUERNSEY. THE STORM WAS MOVING VERY SLOWLY NORTHEAST. PEOPLE IN NORTHERN GOSHEN COUNTY...TAKE COVER IF THREATENED. THIS STORM WILL PRODUCE LOCALLY HEAVY RAIN...HAIL UP TO 1/2 INCH IN DIAMETER AND FREQUENT AND DANGEROUS LIGHTNING. LOW LYING AREAS COULD BE FLOODED. GLANCY
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, 2 hours 29 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 8 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 10 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, 29 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, 9 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
Nearby
Severe Thunderstorm Warnings in Wyoming, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.