Alert archive / Wyoming / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 29, NWS Cheyenne, WY

June 27, 1995Goshen County, Platte County, Wyoming

NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 27, 1995, 7:16 PM MDT for Goshen County, Platte County, Wyoming. It was in force for 44 min.

The area

The counties it named.

The facts

Issued
Jun 27, 1995, 7:16 PM MDT (01:16 UTC)
Expired
Jun 27, 1995, 8:00 PM MDT
In force
44 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

Counties Goshen County, WY, Platte County, WY

The radar

The Cheyenne radar (KCYS), 107 km from the middle of the area, began a volume at 01:16 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

Rapid City, SD (KRAP), launched 00:00Z, 1.3 hours before the alert went out and 261 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 00:00Z on 1995-06-28Temperature 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 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 00:00Z on 1995-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 square meters per square second.1939Sfc1 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
1705 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCYS 280120 RRA
SVRCYS
WYC015-031-280200-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
716 PM MDT TUE JUN 27 1995
 
THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  800 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHEAST WYOMING
 
   ...NORTHWESTERN GOSHEN COUNTY...NORTHERN PLATTE COUNTY
 
INCLUDING THE CITIES OF WHEATLAND..GLENDO...GUERNSEY AND
HARTVILLE.
 
THIS WARNING IS A CONTINUATION OF THE PREVIOUSLY ISSUED WARNING
FOR THE AREA.  SEVERE THUNDERSTORMS HAVE MOVED OUT OF ALBANY
COUNTY AND THE WARNING IS NOT IN EFFECT FOR THAT COUNTY.
 
AT 715 PM...DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS OVER
NORTHERN PLATTE COUNTY. THE SEVERE THUNDERSTORMS WERE MOVING TO
THE SOUTHEAST AT 20 MPH.
 
DUE TO THE HEAVY RAINFALL...SOME MINOR FLOODING MAY ALSO OCCUR.
 
DAMAGING WINDS AND LARGE HAIL ARE LIKELY.  GO INSIDE A STURDY
BUILDING ANVD STAY AWAY FROM WINDOWS!
WEILAND

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 27, 5:19 PM MDT, 1 hour 57 minutes before
WYZ062-064>070-NEZ019>021-054-055-280030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
519 PM MDT TUE JUN 27 1995

...STRONG THUNDERSTORMS CONTINUE OVER SOUTHEAST WYOMING AND THE
NEBRASKA PANHANDLE...

AT 510 PM...SEVERAL SEVERE THUNDERSTORMS WERE OVER SOUTHEAST WYOMING
AND THE NEBRASKA PANHANDLE.  AT THAT TIME THE SEVERE STORMS WERE OVER
SOUTHEAST LARAMIE COUNTY IN WYOMING AND NORTHEAST BANNER COUNTY OF
NEBRASKA.  THESE STORMS WERE MOVING EAST AT 20 MPH.  LARGE HAIL...
STRONG WIND GUSTS AND HEAVY RAIN WILL ACCOMPANY THESE SEVERE STORMS.

IN ADDITION...OTHER STRONG THUNDERSTORMS WERE NOTED IN THAT AREA.
THESE STORMS WERE LOCATED OVER NORTHEAST CARBON COUNTY...8 MILES
NORTHWEST OF WHEATLAND AND 8 MILES SOUTHWEST OF CHEYENNE.

ALL OF THE THUNDERSTORMS ARE CAPABLE OF PRODUCING HAIL...HEAVY RAIN...
WIND GUSTS TO 40 MPH AND DANGEROUS LIGHTNING.  THUNDERSTORMS...SOME OF
THEM STRONG WILL CONTINUE OVER SOUTHEAST WYOMING AND THE NEBRASKA
PANHANDLE THROUGH THE EVENING.

PEOPLE IN SOUTHEAST WYOMING AND THE NEBRASKA PANHANDLE SHOULD BE
PREPARED FOR THE THUNDERSTORMS IN THE AREA.  BOATERS SHOULD PLAN TO
MOVE OFF OF WATER IN THOSE AREAS.  IF A STORM APPROACHES...MOVE TO
SAFE SHELTER.

WCJIN-WYSE
WEILAND
Special weather statement, Jun 27, 6:09 PM MDT, 1 hour 7 minutes before
WYZ062-064>070-NEZ019>021-054-055-280100-

SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE CHEYENNE WY
609 PM MDT TUE JUN 27 1995

...STRONG THUNDERSTORMS CONTINUE OVER SOUTHEAST WYOMING AND THE
NEBRASKA PANHANDLE...

AT 600 PM...STRONG THUNDERSTORMS CONTINUED OVER SOUTHEAST WYOMING AND
THE NEBRASKA PANHANDLE.  IN FACT...A SEVERE THUNDERSTORM WARNING
CONTIUNES IN EFFECT FOR NORTHEAST CARBON AND NORTHWEST ALBANY COUNTIES
UNTIL 615 PM.  ANOTHER SEVERE THUNDERSTORM WARNING IS IN EFFECT UNTIL
630 PM FOR WEST CENTRAL AND CENTRAL MORRILL COUNTY IN NEBRASKA.

OTHER STRONG STORMS WERE LOCATED OVER NORTHERN ALBANY COUNTY...WESTERN
LARAMIE COUNTY AND NEAR WHEATLAND.  ALL OF THE STORMS WERE MOVING TO
THE EAST AT 20 MPH.  AT 550 PM...HEAVY RAIN AND PEA SIZED HAIL WAS
REPORTED IN WHEATLAND.

THE STRONG THUNDERSTORMS WILL PRODUCE HAIL...HEAVY RAIN...HEAVY RAIN
AND DANGEROUS LIGHTNING THROUGH THE EVENING HOURS.

PEOPLE IN SOUTHEAST WYOMING AND THE NEBRASKA PANHANDLE SHOULD BE
PREPARED FOR THE THUNDERSTORMS IN THE AREA.  IF A STORM APPROACHES...
MOVE TO A SAFE SHELTER.

CORRECTED FOR TIME OF EXPIRATION OF FIRST WARNING.

WCJIN-WYSE
WEILAND
Special weather statement, Jun 27, 6:09 PM MDT, 1 hour 7 minutes before
WYZ062-064>070-NEZ019>021-054-055-280100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
609 PM MDT TUE JUN 27 1995

...STRONG THUNDERSTORMS CONTINUE OVER SOUTHEAST WYOMING AND THE
NEBRASKA PANHANDLE...

AT 600 PM...STRONG THUNDERSTORMS CONTINUED OVER SOUTHEAST WYOMING AND
THE NEBRASKA PANHANDLE.  IN FACT...A SEVERE THUNDERSTORM WARNING
CONTIUNES IN EFFECT FOR NORTHEAST CARBON AND NORTHWEST ALBANY COUNTIES
UNTIL 630 PM.  ANOTHER SEVERE THUNDERSTORM WARNING IS IN EFFECT UNTIL
630 PM FOR WEST CENTRAL AND CENTRAL MORRILL COUNTY IN NEBRASKA.

OTHER STRONG STORMS WERE LOCATED OVER NORTHERN ALBANY COUNTY...WESTERN
LARAMIE COUNTY AND NEAR WHEATLAND.  ALL OF THE STORMS WERE MOVING TO
THE EAST AT 20 MPH.  AT 550 PM...HEAVY RAIN AND PEA SIZED HAIL WAS
REPORTED IN WHEATLAND.

THE STRONG THUNDERSTORMS WILL PRODUCE HAIL...HEAVY RAIN...HEAVY RAIN
AND DANGEROUS LIGHTNING THROUGH THE EVENING HOURS.

PEOPLE IN SOUTHEAST WYOMING AND THE NEBRASKA PANHANDLE SHOULD BE
PREPARED FOR THE THUNDERSTORMS IN THE AREA.  IF A STORM APPROACHES...
MOVE TO A SAFE SHELTER.

WCJIN-WYSE
WEILAND
Special weather statement, Jun 27, 6:20 PM MDT, 56 minutes before
WYZ062-064>070-NEZ019>021-054-055-280100-

SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE CHEYENNE WY
609 PM MDT TUE JUN 27 1995

...STRONG THUNDERSTORMS CONTINUE OVER SOUTHEAST WYOMING AND THE
NEBRASKA PANHANDLE...

AT 600 PM...STRONG THUNDERSTORMS CONTINUED OVER SOUTHEAST WYOMING AND
THE NEBRASKA PANHANDLE.  IN FACT...A SEVERE THUNDERSTORM WARNING
CONTIUNES IN EFFECT FOR NORTHEAST CARBON AND NORTHWEST ALBANY COUNTIES
UNTIL 615 PM.  ANOTHER SEVERE THUNDERSTORM WARNING IS IN EFFECT UNTIL
630 PM FOR WEST CENTRAL AND CENTRAL MORRILL COUNTY IN NEBRASKA.

OTHER STRONG STORMS WERE LOCATED OVER NORTHERN ALBANY COUNTY...WESTERN
LARAMIE COUNTY AND NEAR WHEATLAND.  ALL OF THE STORMS WERE MOVING TO
THE EAST AT 20 MPH.  AT 550 PM...HEAVY RAIN AND PEA SIZED HAIL WAS
REPORTED IN WHEATLAND.

THE STRONG THUNDERSTORMS WILL PRODUCE HAIL...HEAVY RAIN...HEAVY RAIN
AND DANGEROUS LIGHTNING THROUGH THE EVENING HOURS.

PEOPLE IN SOUTHEAST WYOMING AND THE NEBRASKA PANHANDLE SHOULD BE
PREPARED FOR THE THUNDERSTORMS IN THE AREA.  IF A STORM APPROACHES...
MOVE TO A SAFE SHELTER.

CORRECTED FOR TIME OF EXPIRATION OF FIRST WARNING.

WCJIN-WYSE
WEILAND
Special weather statement, Jun 27, 6:45 PM MDT, 31 minutes before
NEZ001>003-019>021-054-055-280130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
645 PM MDT TUE JUN 27 1995

...ANOTHER STRONG STORM HAS DEVELOPED IN MORRILL COUNTY...

A STORM HAS DEVELOPED OVER NORTHEAST MORRILL COUNTY AND WAS BECOMING
FAIRLY STRONG.  THIS STORM WAS LOCATED ABOUT 15 MILES NORTHEAST OF
BRIDGEPORT AND WAS NEARLY STATIONARY.  THIS STORM WAS PRODUCING HEAVY
RAIN AND WAS LIKELY PRODUCING HAIL AND STRONG GUSTY WINDS.

ELSEWHERE IN THE PANHANDLE...A LARGE AREA OF SHOWERS WAS OVER SOUTHERN
MORRILL COUNTY AND MUCH OF CHEYENNE COUNTY.  SHOWERS AND THUNDERSTORMS
WERE MOVING SOUTHEAST FROM WYOMING INTO NORTHERN SIOUX COUNTY.

BE PREPARED TO SEEK SHELTER IF A STORM APPROACHES AND STAY TUNED FOR
LATER STATEMENTS AND POSSIBLE WARNINGS.

HARRISON
Special weather statement, Jun 27, 6:51 PM MDT, 25 minutes before
NEZ001>003-019>021-054-055-280130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
645 PM MDT TUE JUN 27 1995

...ANOTHER STRONG STORM HAS DEVELOPED IN MORRILL COUNTY...

A STORM HAS DEVELOPED OVER NORTHEAST MORRILL COUNTY AND WAS BECOMING
FAIRLY STRONG.  THIS STORM WAS LOCATED ABOUT 15 MILES NORTHEAST OF
BRIDGEPORT AND WAS NEARLY STATIONARY.  THIS STORM WAS PRODUCING HEAVY
RAIN AND WAS LIKELY PRODUCING HAIL AND STRONG GUSTY WINDS.

ELSEWHERE IN THE PANHANDLE...A LARGE AREA OF SHOWERS WAS OVER SOUTHERN
MORRILL COUNTY AND MUCH OF CHEYENNE COUNTY.  SHOWERS AND THUNDERSTORMS
WERE MOVING SOUTHEAST FROM WYOMING INTO NORTHERN SIOUX COUNTY.

BE PREPARED TO SEEK SHELTER IF A STORM APPROACHES AND STAY TUNED FOR
LATER STATEMENTS AND POSSIBLE WARNINGS.

HARRISON

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 7:02 PM MDTSevere Thunderstorm WarningCYSConverse43 min
Jun 27, 7:58 PM MDTSevere Thunderstorm WarningCYSGoshen, Platte47 min
Jun 27, 8:32 PM MDTSevere Thunderstorm WarningCYSGoshen28 min
Jun 28, 12:08 PM MDTTornado WarningCYSSheridan37 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.