Alert archive / Wyoming / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 3, NWS Cheyenne, WY

June 3, 1995Laramie County, Wyoming

NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 3, 1995, 6:09 PM MDT for Laramie County, Wyoming. It was in force for 51 min.

The area

The counties it named.

The facts

Issued
Jun 3, 1995, 6:09 PM MDT (00:09 UTC)
Expired
Jun 3, 1995, 7:00 PM MDT
In force
51 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

County Laramie County, WY

The radar

The Cheyenne radar (KCYS), 20 km from the middle of the area, began a volume at 00:10 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 0.2 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.

Skew-T log-pSkew-T log-p diagram, Denver, CO at 00:00Z on 1995-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 1995-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1788 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
184 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KCYS 040010 RRA
SVRCYS
WYC021-040115-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
609 PM MDT SAT JUN 3 1995
 
THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  715 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST WYOMING
 
   ...EASTERN LARAMIE COUNTY
 
THIS WARNING INCLUDES THE TOWN OF ALBIN.
 
AT 608 PM...RADAR INDICATED A SEVERE THUNDERSTORM ABOUT 30 MILES
NORTHEAST OF CHEYENNE...OR ABOUT 10 MILES SOUTHWEST OF ALBIN.
THE STORM WAS MOVING NORTH AT 20 MPH.  HAIL AND HEAVY RAIN WILL
BE THE MAIN THREAT FROM THIS STORM.
 
GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS!  A TORNAXDO
WATCH IS IN EFFECT.  SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES.
 
JAD

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 3, 4:35 PM MDT, 1 hour 34 minutes before
NEZ055-040000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
435 PM MDT SAT JUN 3 1995

...STRONG THUNDERSTORMS WERE MOVING THROUGH CHEYENNE COUNTY IN THE
NEBRASKA PANHANDLE AT 430 PM...

AN AREA OF STRONG STORMS WAS MOVING NORTH AT ABOUT 20 MPH THROUGH THE
WESTERN AND NORTHERN PARTS OF CHEYENNE COUNTY NEBRASKA.  THE STRONGEST
STORM WAS LOCATED ABOUT 10 MILES NORTHWEST OF SIDNEY.

HEAVY RAIN...SMALL HAIL AND DANGEROUS LIGHTNING ARE THE MAIN HAZARDS
WITH THESE STORMS.  BE SURE TO STAY INDOORS WHEN STORMS ARE MOVING
THROUGH YOUR AREA.

JAD
Special weather statement, Jun 3, 5:00 PM MDT, 1 hour 9 minutes before
NEZ021-054-040000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
500 PM MDT SAT JUN 3 1995

...STRONG THUNDERSTORMS WERE MOVING THROUGH INTO THE SOUTHERN PART OF
THE NEBRASKA PANHANDLE AT 500 PM...

THUNDERSTORMS WERE MOVING NORTH INTO MORRILL COUNTY AT 5 PM.  THE
STRONGEST STORM WAS LOCATED JUST WEST OF BROADWATER...OR ABOUT 30 MILES
NORTH OF SIDNEY.  THIS STORM HAS GROWN QUICKLY...AND MAY PRODUCE HAIL
AND HEAVY RAINS.

OTHER STORMS IN NORTHEAST COLORADO WERE ABOUT TO CROSS THE BORDER INTO
KIMBALL COUNTY NEBRASKA.  PEOPLE IN KIMBALL AND MORRILL COUNTIES SHOULD
STAY ALERT TO STORMS MOVING THROUGH YOUR AREA THIS EVENING.

JAD
Special weather statement, Jun 3, 5:01 PM MDT, 1 hour 8 minutes before
NEZ021-054-040000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
500 PM MDT SAT JUN 3 1995

...STRONG THUNDERSTORMS WERE MOVING THROUGH INTO THE SOUTHERN PART OF
THE NEBRASKA PANHANDLE AT 500 PM...

THUNDERSTORMS WERE MOVING NORTH INTO MORRILL COUNTY AT 5 PM.  THE
STRONGEST STORM WAS LOCATED JUST WEST OF BROADWATER...OR ABOUT 30 MILES
NORTH OF SIDNEY.  THIS STORM HAS GROWN QUICKLY...AND MAY PRODUCE HAIL
AND HEAVY RAINS.

OTHER
STORMS IN NORTHEAST COLORADO WERE ABOUT TO CROSS THE BORDER INTO
KIMBALL COUNTY NEBRASKA.  PEOPLE IN KIMBALL AND MORRILL COUNTIES SHOULD
STAY ALERT TO STORMS MOVING THROUGH YOUR AREA THIS EVENING.

JAD
Special weather statement, Jun 3, 5:30 PM MDT, 39 minutes before
WYZ067-070-040030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
530 PM MDT SAT JUN 3 1995

...STRONG THUNDERSTORMS WERE DEVELOPING IN SOUTHEAST WYOMING AT 525 PM...

AN AREA OF STRONG STORMS WAS MOVING NORTH AT ABOUT 20 MPH THROUGH
NORTHEAST COLORADO.  THE STORMS WILL BE MOVING INTO SOUTHEAST LARAMIE
COUNTY NEAR PINE BLUFFS BY 545 PM.

OTHER STORMS WERE DEVELOPING IN SOUTHEAST PLATTE COUNTY ABOUT 15 MILES
SOUTHEAST OF WHEATLAND.  THIS STORM WAS MOVING NORTH AT 20 MPH...AND
WAS PROBABLY PRODUCING HAIL AND HEAVY RAIN.

PEOPLE IN PLATTE AND EASTERN LARAMIE COUNTY SHOULD REMAIN ALERT TO
STORMS IN YOUR AREA THIS EVENING.  A FLASH FLOOD WATCH ALSO IS IN EFFECT
UNTIL MIDNIGHT.
WCJIN-WYSE
JAD
Special weather statement, Jun 3, 5:50 PM MDT, 19 minutes before
NEZ001-003-019-020-021-040100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
550 PM MDT SAT JUN 3 1995

...STRONG THUNDERSTORMS CONTINUED TO MOVE NORTH ACROSS THE NEBRASKA
PANHANDLE AT 545 PM...

THE STORMS HAVE SPREAD NORTH INTO SCOTTS BLUFF AND BANNER COUNTIES
AS OF 545 PM.  OTHER STORMS WERE IN MORRILL COUNTY AND ABOUT TO MOVE
INTO SOUTHERN BOX BUTTE COUNTY BY 615 PM.

THE STRONGEST STORM WAS LOCATED ABOUT 15 MILES SOUTH OF ALLIANCE...OR
ABOUT 15 MILES NORTHEAST OF BRIDGEPORT.  ANOTHER AREA OF STRONG STORMS
WAS OVER SOUTHWEST KIMBALL COUNTY.  ALL STORMS WERE MOVING NORTH AT
20 MPH.

SMALL HAIL AND HEAVY RAINS WILL BE THE MAIN THREAT FROM THESE STORMS.
STAY INDOORS AWAY FROM WINDOWS WHEN THUNDERSTORMS ARE IN YOUR AREA.
JAD

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 3, 7:33 PM MDTTornado WarningCYSPlatte12 min

Nearby

Severe Thunderstorm Warnings in Wyoming, 1995Every severe thunderstorm warning 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; radar from the NEXRAD Level II archive.