Alert archive / Wyoming / Tornado Warnings in 1995

Tornado Warning 9, NWS Cheyenne, WY

July 11, 1995Sheridan County, Wyoming

NWS Cheyenne, WY issued this tornado warning at Jul 11, 1995, 4:07 PM MDT for Sheridan County, Wyoming. It was in force for 35 min.

The area

The counties it named.

The facts

Issued
Jul 11, 1995, 4:07 PM MDT (22:07 UTC)
Expired
Jul 11, 1995, 4:42 PM MDT
In force
35 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

County Sheridan County, WY

The nearest sounding before it

Rapid City, SD (KRAP), launched 12:00Z, 10.1 hours before the alert went out and 327 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, Rapid City, SD at 12:00Z on 1995-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 344 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, Rapid City, SD at 12:00Z on 1995-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 square meters per square second.193958Sfc1 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
344 J/kg
Mixed-layer CIN
-382 J/kg
Mixed-layer LCL
2513 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
55 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 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, Jul 11, 2:41 PM MDT, 1 hour 26 minutes before
WYZ016-017-018-020-021-022-023-024-025-112245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
241 PM MDT TUE JUL 11 1995

...STRONG THUNDERSTORMS WERE IN SOUTHWEST WYOMING...

AT 235 PM MDT...STRONG THUNDERSTORMS WERE IN SOUTHERN AND CENTRAL
LINCOLN COUNTY BETWEEN KEMMERER AND AFTON.  VERY HEAVY RAIN FELL IN
COKEVILLE AS ONE OF THESE THUNDETRSTORMS PASSED THROUGH.  OTHER
THUNDERSTORMS WERE MOVING INTO SOUTHERN UINTA COUNTY AND SOUTHWEST
SWEETWATER COUNTY.

THE THUNDERSTORMS WERE MOVING NORTHEAST AT 30 MILES AN HOUR AND MAY
PRODUCE HAIL AND WINDS AROUND 50 MILES AN HOUR.  BE PREPARED TO MOVE TO
SHELTER AS THUNDERSTORMS APPROACH.

WCJIN-WYSW.

BAKER

&
Special weather statement, Jul 11, 2:43 PM MDT, 1 hour 24 minutes before
WYZ016-017-018-020-021-022-023-024-025-112245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
241 PM MDT TUE JUL 11 1995

...STRONG THUNDERSTORMS WERE IN SOUTHWEST WYOMING...

AT 235 PM MDT...STRONG THUNDERSTORMS WERE IN SOUTHERN AND CENTRAL
LINCOLN COUNTY BETWEEN KEMMERER AND AFTON.  VERY HEAVY RAIN FELL IN
COKEVILLE AS ONE OF THESE THUNDETRSTORMS PASSED THROUGH.  OTHER
THUNDERSTORMS WERE MOVING INTO SOUTHERN UINTA COUNTY AND SOUTHWEST
SWEETWATER COUNTY.

THE THUNDERSTORMS WERE MOVING NORTHEAST AT 30 MILES AN HOUR AND MAY
PRODUCE HAIL AND WINDS AROUND 50 MILES AN HOUR.  BE PREPARED TO MOVE TO
SHELTER AS THUNDERSTORMS APPROACH.

WCJIN-WYSW.

BAKER

&
Special weather statement, Jul 11, 3:33 PM MDT, 34 minutes before
WYZ059-060-NEZ001-112330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
333 PM MDT TUE JUL 11 1995

...STRONG THUNDERSTORMS WERE IN SOUTHERN NIOBRARA COUNTY...

AT 330 PM MDT...A STRONG THUNDERSTORM WAS IN SOUTHERN NIOBRARA COUNTY
7 MILES NORTHWEST OF LUSK.  THIS THUNDERSTORM WAS MOVING NORTHEAST AT
20 MILES AN HOUR.  SMALL HAIL AND STRONG WINDS AREA POSSIBLE WITH
THIS THUNDERSTORM.

BE PREPARED TO MOVE TO SHELTER AS THIS THUNDERSTORM MOVES NEAR YOU.

WCJIN-WYNE.

BAKER
Special weather statement, Jul 11, 3:35 PM MDT, 32 minutes before
WYZ059-060-NEZ001-112330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
333 PM MDT TUE JUL 11 1995

...STRONG THUNDERSTORMS WERE IN SOUTHERN NIOBRARA COUNTY...

AT 330 PM MDT...A STRONG THUNDERSTORM WAS IN SOUTHERN NIOBRARA COUNTY
7 MILES NORTHWEST OF LUSK.  THIS THUNDERSTORM WAS MOVING NORTHEAST AT
20 MILES AN HOUR.  SMALL HAIL AND STRONG WINDS AREA POSSIBLE WITH
THIS THUNDERSTORM.

BE PREPARED TO MOVE TO SHELTER AS THIS THUNDERSTORM MOVES NEAR YOU.

WCJIN-WYNE.

BAKER
Special weather statement, Jul 11, 3:46 PM MDT, 21 minutes before
NEZ001-002-003-019-112345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
346 PM MDT TUE JUL 11 1995

...A THUNDERSTORM WAS MOVING THROUGH NORTHERN SIOUX COUNTY...

AT 345 PM MDT...A THUNDERSTORM WAS MOVING THROUGH NORTHERN SIOUX
COUNTY.  THE THUNDERSTORM WAS 5 MILES SOUTHWEST OF HARRISON AND WILL
MOVE THROUGH HARRISON BY 400 PM.  THE THUNDERSTORM WAS MOVING NORTHEAST
AT 20 MILES AN HOUR AND SHOULD PRODUCE SOME HEAVY RAIN AND POSSIBLY SOME
SMALL HAIL AND STRONG WINDS.

BE PREPARED TO MOVE TO SHELTER AS THIS THUNDERSTORM APPROACHES.

BAKER
Special weather statement, Jul 11, 3:48 PM MDT, 19 minutes before
NEZ001-002-003-019-112345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
346 PM MDT TUE JUL 11 1995

...A THUNDERSTORM WAS MOVING THROUGH NORTHERN SIOUX COUNTY...

AT 345 PM MDT...A THUNDERSTORM WAS MOVING THROUGH NORTHERN SIOUX
COUNTY.  THE THUNDERSTORM WAS 5 MILES SOUTHWEST OF HARRISON AND WILL
MOVE THROUGH HARRISON BY 400 PM.  THE THUNDERSTORM WAS MOVING NORTHEAST
AT 20 MILES AN HOUR AND SHOULD PRODUCE SOME HEAVY RAIN AND POFSSIBLY SOME
SMALL HAIL AND STRONG WINDS.

BE PREPARED TO MOVE TO SHELTER AS THIS THUNDERSTORM APPROACHES.

BAKER

Nearby

Tornado Warnings in Wyoming, 1995Every tornado warning in 1995Tornadoes in 1995

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.