Alert archive / Wyoming / Tornado Warnings in 1986
Tornado Warning 6, NWS Cheyenne, WY
NWS Cheyenne, WY issued this tornado warning at Jun 8, 1986, 5:08 PM MDT for Laramie County, Wyoming. It was in force for 52 min. 2 reports 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
- Jun 8, 1986, 5:08 PM MDT (23:08 UTC)
- Expired
- Jun 8, 1986, 6:00 PM MDT
- In force
- 52 min
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
County Laramie 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 |
|---|---|---|---|
| Jun 8, 5:10 PM MDT | Hail 1.75 | Laramie, WY | |
| Jun 8, 5:43 PM MDT | Hail 4 | Laramie, 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
Denver, CO (KDEN), launched 12:00Z, 11.1 hours before the alert went out and 202 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
- 117 J/kg
- Mixed-layer CIN
- -286 J/kg
- Mixed-layer LCL
- 776 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 103 m²/s²
- 0-3 km storm-relative helicity
- 50 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 082308 TORCYS WYC021-090000- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE CHEYENNE WY 508 PM MDT SUN JUN 8 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 600 PM MDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF SOUTHEAST WYOMING..EASTERN LARAMIE INCLUDING THE TOWNS OF BURNS... CARPENTER...HILLSDALE...AND EGBERT. AT 505 PM RADAR INDICATED A POSSIBLE TORNADO ABOUT 3 MILES NORTHWEST OF CARPENTER MOVING NORTH NORTHEAST AT 25 MILES AN HOUR. PEOPLE IN THE PATH OF THIS POSSIBLE TORNADO SHOULD TAKE COVER IMMEDIATELY. GO TO A BASEMENT OR A CENTRAL INTERIOR ROOM ON THE LOWEST FLOOR. ABANDON CARS AND MOBILE HOMES FOR A REINFORCED BUILDING. DASELER
What forecasters said that day
The local office's own words before this tornado 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, Jun 8, 1:41 PM MDT, 3 hours 27 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 140 PM MDT SUN JUN 8 1986 THE FLASH FLOOD WATCH FOR EASTERN WYOMING IS NOT LONGER IN EFFECT. THE NATIONAL WEATHER SERVICE HAS LIFTED THE WATCH FOR THIS SUNDAY NIGHT. SCATTERED THUNDERSHOWERS ARE FORECAST FOR MUCH OF THE STATE THROUGH THE EVENING HOURS WITH ISOLATED THUNDERSTORMS IN CENTRAL AND EASTERN WYOMING UNTIL 10PM THIS SUNDAY EVENING. A FEW THUNDERSTORMS MAY CONTAIN BRIEF HEAVY RAIN...SMALL HAIL AND GUSTY WINDS. THESE THUNDERSTORMS WILL BE MOVING TO THE EAST AND NORTHEAST. IF THREATENING WEATHER APPROACHS TAKE COVER IMMEDIATELY. REPORT ANY SEVERE WEATHER TO YOUR NEAREST LAW ENFORCEMENT AGENCY. SGS=
Special weather statement, Jun 8, 2:05 PM MDT, 3 hours 3 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 205 PM MDT SUN JUN 8 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WATCH FOR SOUTHEASTERN WYOMING UNTIL 8 PM MDT THIS EVENING INCLUDING THE FOLLOWING COUNTIES... ALL OF LARAMIE...PLATTE...AND GOSHEN COUNTIES THE SOUTHERN PARTS OF CONVERSE AND NIOBRARA COUNTIES THE SOUTHEAST PART OF NATRONA COUNTY THE EASTERN PART OF ALBANY COUNTY LOW LEVEL MOISTURE COMBINED WITH SURFACE HEATING AND UPSLOPE WINDS COULD CAUSE DANGEROUS THUNDERSHOWERS TO DEVELOP THROUGH THE AFTERNOON. REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN TQHESE AREAS SHOULD BE AWARE OF THREATENING WEATHER CONDITIONS. ALSO... LISTEN TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA FOR THE LATEST STATEMENTS OR WARNINGS. MENTZER
Special weather statement, Jun 8, 3:23 PM MDT, 1 hour 45 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SCOTTSBLUFF NE 320 PM MDT SUN JUN 8 1986 ...A TORNADO WATCH IN EFFECT FOR MOST OF NEBRASKA PANHANDLE UNTIL 8PM MDT SUNDAY EVENING... A TORNADO WATCH REMAINS IN EFFECT FOR MOST OF THE NEBRASKA PANHANDLE UNTIL 8PM MDT THIS EVENING. VERY HEAVY RAIN..LARGE HAIL..AND DAMAGING WINDS ARE EXPECTED FROM THUNDERSTORMS LATE THIS AFTERNOON AND EVENING. ALTHOUGH NO SHOWERS AND THUNDERSTORMS ARE LOCATED IN THE PANHANDLE AT 315 PM MDT...THUNDERSTORMS CONTINUE TO DEVELOP ALONG THE FRONT RANGE OF THE ROCKIES IN SOUTHEAST WYOMING AND NORTHEAST COLORADO. THE STORMS WERE MOVING TO THE NORTH AND NORTHEAST AT 15 TO 20 MILES AN HOUR. THESEE THUNDERSTORMS ARE EXPECTED TO MOVE INTO THE WESTERN AND SOUTHERN SECTIONS OF THE PANHANDLE BETWEEN 5 PM AND 6 PM MDT. PFEIFFER
Special weather statement, Jun 8, 3:56 PM MDT, 1 hour 12 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 355 PM MDT SUN JUN 8 1986 A TORNADO WATCH CONTINUES IN EFFECT FOR A LARGE PART OF SOUTHEAST WYOMING UNTIL 8 PM. AT 350 PM...WEATHER RADAR AT CHEYENNE SHOWED SCATTERED THUNDERSTORMS IN SOUTHEAST WYOMING. NONE OF THE STORMS APPEARED TO BE SEVERE... AND NO REPORTS OF ANY SEVERE WEATHER HAVE BEEN RECEIVED. THE STRONGEST STORM WAS LOCATED JUST SOUTHWEST OF GLENDO...SOME 20 MILES SOUTHEAST OF DOUGLAS. THE POTENTIAL FOR SEVERE THUNDERSTORMS CONTINUES IN SOUTHEAST WYOMING AS THE INITIAL BATCH OF STORMS HAS FORMED AND MOVED NORTHEAST ...ALLOWING FOR MORE SUNSHINE TO WARM UP THE SURFACE AIR. SO...BE ALERT AND KEEP AN EYE ON THE SKY DURING THIS TORNADO WATCH. DASELER
Special weather statement, Jun 8, 4:56 PM MDT, 12 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 455 PM MDT SUN JUN 8 1986 A TORNADO WATCH CONTINUES IN EFFECT FOR A LARGE PART OF SOUTHEAST WYOMING UNTIL 8 PM. AT 445 PM...WEATHER RADAR AT CHEYENNE SHOWED SCATTERED THUNDERSTORMS IN SOUTHEAST WYOMING. THE STRONGEST STORM WAS LOCATED IN THE NORTHWEST PART OF PLATTE COUNTY JUST WEST OF GLENDO...SOME 20 MILES SOUTHEAST OF DOUGLAS. ANOTHER STRONG STORM WAS DEVELOPING IN EASTERN LARAMIE COUNTY JUST WEST OF CARPENTER...ABOUT 20 MILES EAST OF CHEYENNE. PEA SIZE HAIL WAS OBSERVED 3 MILES WEST OF CARPENTER AROUND 450 PM. THE STORMS WERE MOVING NORTHEAST AT ABOUT 25 MILES AN HOUR. EVEN THOUGH NO SEVERE WEATHER HAS BEEN REPORTED...THESE STORMS COULD PRODUCE DAMAGING WINDS...LARGE HAIL...HEAVY RAIN...AND DANGEROUS LIGHTNING...SO BE READY TO MOVE TO A PLACE OF SAFETY IS THREATENING WEATHER APPROACHES. DASELER
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 7, 6:15 PM MDT | Severe Thunderstorm Warning | CYS | Platte | 45 min |
| Jun 7, 6:58 PM MDT | Tornado Warning | CYS | Goshen, Platte | 47 min |
| Jun 7, 7:50 PM MDT | Severe Thunderstorm Warning | CYS | Goshen | 55 min |
| Jun 7, 8:20 PM MDT | Tornado Warning | CYS | Goshen | 40 min |
| Jun 8, 2:13 PM MDT | Severe Thunderstorm Warning | CYS | Platte | 47 min |
Nearby
Tornado Warnings in Wyoming, 1986Every tornado warning in 1986Tornadoes 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.