Alert archive / Wyoming / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 36, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 29, 1986, 7:15 PM MDT for Goshen County, Wyoming. It was in force for 30 min.
The area
The counties it named.
The facts
- Issued
- Jun 29, 1986, 7:15 PM MDT (01:15 UTC)
- Expired
- Jun 29, 1986, 7:45 PM MDT
- In force
- 30 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.
The nearest sounding before it
Rapid City, SD (KRAP), launched 00:00Z, 1.3 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
- 2168 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 1204 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- -66 m²/s²
- 0-3 km storm-relative helicity
- -30 m²/s²
- Significant tornado parameter
- -0.7
- Supercell composite
- -8.2
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, Jun 29, 2:52 PM MDT, 4 hours 23 minutes before
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</html>Special weather statement, Jun 29, 3:27 PM MDT, 3 hours 48 minutes before
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</html>Special weather statement, Jun 29, 3:50 PM MDT, 3 hours 25 minutes before
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<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
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Please try again in a few minutes.
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</html>Special weather statement, Jun 29, 5:20 PM MDT, 1 hour 55 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE VALENTINE NE ISSUED BY SCOTTSBLUFF NE 520 PM MDT SUN JUN 29 1986 ...A TORNADO WATCH REMAINS IN EFFECT FOR CHERRY COUNTY OF NORTH CENTRAL NEBRASKA bUNTIL 10PM CDT TONIGHT... AT 515PM MDT..NO THUNDERSTORMS WERE LOCATED IN CHERRY COUNTY NEBRASKA. THUNDERSTORMS HAVE DEVELOPED OVER PORTIONS OF SOUTHWEST SOUTH DAKOTA HOWEVER..THAT COULD MOVE INTO CHERRY COUNTY LATER THIS EVENING. KOSEL
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 8:21 PM MDT | Severe Thunderstorm Warning | CYS | Sioux | 54 min |
| Jun 29, 8:34 PM MDT | Tornado Warning | CYS | Sioux | 26 min |
| Jun 29, 8:58 PM MDT | Tornado Warning | CYS | Sioux | 32 min |
| Jun 29, 9:26 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte, Dawes, Sioux | 54 min |
| Jun 29, 10:24 PM MDT | Severe Thunderstorm Warning | CYS | Dawes, Sioux | 51 min |
| Jun 30, 4:31 AM MDT | Severe Thunderstorm Warning | CYS | Dawes | 59 min |
| Jun 30, 5:28 AM MDT | Severe Thunderstorm Warning | CYS | Sheridan | 57 min |
| Jun 30, 4:44 PM MDT | Severe Thunderstorm Warning | CYS | Sioux | 51 min |
| Jun 30, 5:10 PM MDT | Severe Thunderstorm Warning | CYS | Dawes, Sheridan | 55 min |
| Jun 29, 8:06 PM MDT | Severe Thunderstorm Warning | CYS | Goshen | 24 min |
| Jun 30, 12:01 AM MDT | Severe Thunderstorm Warning | CYS | Weston | 44 min |
| Jun 30, 12:50 AM MDT | Severe Thunderstorm Warning | CYS | Weston | 40 min |
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; the sounding from the Mesonet's radiosonde archive.