Alert archive / Wyoming / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 82, NWS Cheyenne, WY

August 8, 1986Goshen County, Platte County, Wyoming

NWS Cheyenne, WY issued this severe thunderstorm warning at Aug 8, 1986, 6:57 PM MDT for Goshen County, Platte County, Wyoming. It was in force for 30 min.

The area

The counties it named.

The facts

Issued: Aug 8, 1986, 6:57 PM MDT (00:57 UTC)
Expired: Aug 8, 1986, 7:27 PM MDT
In force: 30 min
Issued by: NWS Cheyenne, WY
Area: Whole counties

Counties Goshen County, WY, Platte 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

Denver, CO (KDEN), launched 00:00Z, 1.0 hours before the alert went out and 277 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 9 J/kg
Mixed-layer CIN: -128 J/kg
Mixed-layer LCL: 3154 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 38 m²/s²
0-3 km storm-relative helicity: 92 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

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, Aug 8, 3:12 PM MDT, 3 hours 45 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
310 PM MDT FRI AUG 8 1986

AT 305PM A VERY STRONG THUNDERSTORM WAS LOCATED ABOUT 10 MILES EAST
OF WHEATLAND.  THIS WAS ALONG THE PLATTE AND GOSHEN COUNTY BORDERS OF
SOUTHEAST WYOMING.

THE STORM WAS MOVING TO THE EAST SOUTHEAST AT 20 MPH.  THIS STORM WILL
BE BETWEEN LINGLE AND VETERAN ABOUT 400PM AND MOVE THROUGH THE
TORRINGTON AREA AROUND 430PM.

BRIEFLY HEAVY RAIN...STRONG GUS,TY WINDS AND HAIL WILL ACCOMPANY THIS
STORM.
COX

Special weather statement, Aug 8, 3:27 PM MDT, 3 hours 30 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE VALENTINE NE
ISSUED BY SCOTTSBLUFF NE
325 PM MST FRI AUG 8 1986

...STRONG THUNDERSTORMS IN CHERRY COUNTY OF NORTH CENTRAL NEBRASKA...

AT 320PM MDT...STRONG THUNDERSTORMS WERE IN WESTERN CHERY COUNTY...50
MILES WEST AND 30 MILES SOUTHWEST OF VALENTINE NEBRASKA. THESE STORMS
WERE MOVING TO THE EAST AT 20 MPH.

HEAVY RAIN..STRONG GUSTY WIND..AND SMALL HAIL ARE POSSIBLE WITH THESE
STORMS AS T`HEY MOVE ACROSS CHERRY COUNTY UNTIL 430PM MDT THIS AFTERNOON.
PFEIFFER

Special weather statement, Aug 8, 3:40 PM MDT, 3 hours 17 minutes before

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE ALLIANCE NE
330 PM MDT FRI AUG 8 1986

AT 330 PM MDT A SEVERE THUNDERSTORM WITH VERY HEAVY RAIN WAS
LOCATED 15 MILES NORTHEAST OF WHEATLAND WYOMING.
THIS STORM WAS MOVING TO THE EAST AT 25 MILES AN HOUR AND
WAS LOCATED IN EXTREME EAST WYOMING.

STRONG THUNDERSTORMS WERE IN WESTERN CHERRY COUNTY...50 MILES
WEST AND 30 MILES SOUTHWEST OF VALENTINE NEBRASKA IN NORTH
CENTRAL NEBRASKA. THESE STORMS WERE MOVING TO THE EAST AT 20
MILES AN HOUR AND DO CONTAIN HEAVY RAIN STRONG GUSTY WINDS
AND SMALL HAIL.

SCATTERED THUNDERSHOWERS WERE OVER SOUTHWEST SOUTH DAKOTA
THESE THUNDERSHOWERS WERE LOCATED FROM 20 MILES SOUTHEAST OF
HOT SPRINGS TO 20 MILES SOUTH OF PHILLIP SOUTH DAKOTA.

SCATTERED THUNDERSHOWERS WERE OVER EAST WYOMING. THESE THUNDERSHOWERS
WERE LOCATED FROM CHEYENNE TO 20 MILES WEST OF LUSK.

THERE WERE THUNDERSHOWERS OVER THE SAND HILLS OF NEBRASKA.
THESE THUNDERSHOWERS WERE LOCATED NORTH OF ARTHUR NEBRASKA
AND NORTH OF KEYSTONE NEBRASKA.

THE THUNDERSHOWERS WERE MOVING EAST AT 20 MILES AN HOUR.
VANA

Special weather statement, Aug 8, 4:40 PM MDT, 2 hours 17 minutes before

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Special weather statement, Aug 8, 4:42 PM MDT, 2 hours 15 minutes before

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Special weather statement, Aug 8, 5:40 PM MDT, 1 hour 17 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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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 8, 6:05 PM MDT	Severe Thunderstorm Warning	CYS	Kimball	25 min

Nearby

Severe Thunderstorm Warnings in Wyoming, 1986 Every 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.