Alert archive / Wyoming / Severe Thunderstorm Warnings in 1995
Severe Thunderstorm Warning 13, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 17, 1995, 7:40 PM MDT for Laramie County, Wyoming. It was in force for 35 min.
The area
The counties it named.
The facts
- Issued
- Jun 17, 1995, 7:40 PM MDT (01:40 UTC)
- Expired
- Jun 17, 1995, 8:15 PM MDT
- In force
- 35 min
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
County Laramie County, WY
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 1.7 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.
- Mixed-layer CAPE
- 66 J/kg
- Mixed-layer CIN
- -186 J/kg
- Mixed-layer LCL
- 1760 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 177 m²/s²
- 0-3 km storm-relative helicity
- 281 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCYS 180143 RRA SVRCYS WYC021-180215- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CHEYENNE WY 740 PM MDT SAT JUN 17 1995 THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 815 PM MDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEAST WYOMING ...SOUTHWESTERN LARAMIE COUNTY INCLUDING CHEYENNE... A SEVERE THUNDERSTORM WARNING HAS BEEN ISSUED FOR SOUTHWEST LARAMIE COUNTY INCLUDING THE CITY OF CHEYENNE UNTIL 8:15 PM MDT. A SEVERE THUNDERSTORM MOVING INTO SOUTHWEST LARAMIE COUNTY AT 40 MPH HAS PRODUCED DAMAGING WINDS OVER 60 MPH IN THE FORT COLLINS AREA. THIS SEVERE THUNDERSTORM WILL INTO SOUTHERN CHEYENNE AROUND 8:10 PM MDT. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 10:00 PM MDT. A FLASH FLOOD WATCH ALSO IS IN EFFECT UNTIL MIDNIGHT. THIS SEVERE THUNDERSTORM WILL ALSO PRODUCE VERY HEAVY RAIN AND FLOODING IS A THREAT ALONG DRY CREEK $AND CROW CREEK AS THEY FLOW THROUGH CHEYENNE. THIS STORM HAS A HISTORY OF DAMAGING WIND. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS! WCJIN-WYSE. BAKER
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 17, 6:54 PM MDT, 46 minutes before
WYZ065-066-067-068-069-070-180300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 654 PM MDT SAT JUN 17 1995 AT 645 PM...STRONG THUNDERSTORMS CONTINUED OVER MUCH OF ALBANY COUNTY...WESTERN LARAMIE COUNTY AND WESTERN PLATTE COUNTY. THESE STORMS CONTINUE TO MOVE RAPDILY NORTH AT 40 MPH. IN ADDITION...OTHER STRONG THUNDERSTORMS WERE LOCATED ALONG THE FRONT RANGE IN COLORADO AND WILL CONTINUE TO MOVE INTO SOUTHEAST WYOMING. MOST OF THESE STORMS WERE PRODUCING VERY HEAVY RAIN...SMALL HAIL...WIND GUSTS TO 40 MPH AND DANGEROUS LIGHTNING. DUE TO THE HEAVY RAINFALL...FLASH FLOODING OF STREAMS AND RIVERS IS POSSIBLE. THE THUNDERSTORMS WILL CONTINUE OVER THE SOUTHEAST PART OF WYOMING THROUGH EARLY TONIGHT. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM FOR SOUTHEAST WYOMING. IN ADDITION...A FLASH FLOOD WATCH HAS BEEN POSTED FOR AREAS IN AND NEAR THE EASTERN MOUNTAINS AND WYOMING BLACK HILLS UNTIL MIDNIGHT. PEOPLE IN SOUTHEAST WYOMING SHOULD BE ALERT TO THE THUNDERSTORMS IN THE AREA THROUGH EARLY TONIGHT. IF A STORM APPROACHES... MOVE TO A SAFE SHELTER AND IF IN THE MOUNTAINS...BE SURE TO BE PREPARED TO MOVE TO HIGHER GROUND. WEILAND
Special weather statement, Jun 17, 6:55 PM MDT, 45 minutes before
WYZ059-060-067-068-180300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 655 PM MDT SAT JUN 17 1995 ...STRONG THUNDERSTORMS REDEVELOP IN SOUTHERN NIOBRARA AND NORTHERN PLATTE COUNTIES... AT 650 PM MDT...STRONG THUNDERSTORMS REDEVELOPED IN SOUTHERN NIOBRARA AND NORTHERN PLATTE COUNTIES. THE STRONGEST THUNDERSTORM IN NIOBRARA COUNTY WAS 8 MILES NORTHWEST OF LUSK. IN NORTHERN PLATTE COUNTY...THE STRONGEST THUNDERSTORM WAS 25 MILES NORTH OF WHEATLAND NEAR GLENDO. THERE IS A SEVERE THUNDERSTORM WATCH AND A FLASH FLOOD WATCH IN EFFECT FOR PLATTE COUNTY THIS EVENING. THESE TWO WATCHES DO NOT INCLUDE NIOBRARA COUNTY. HOWEVER THESE THUNDERSTORMS MAY PRODUCE LARGE HAIL... DAMAGING WINDS AND VERY HEAVY RAINS. CAMPERS IN THE GLENDO AREA ALONG RIVERS AND STREAMS SHOULD BE ALERT FOR RAPIDLY RISING WATER. DO NOT CAMP WITHIN A FEW FEET OF THE RIVER BANK. FLOOD WATERS MAY SWEEP THROUGH YOUR CAMP WHILE YOU SLEEP. WCJIN-WYSE-WYNE. BAKER
Special weather statement, Jun 17, 6:56 PM MDT, 44 minutes before
WYZ065-066-067-068-069-070-180300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 654 PM MDT SAT JUN 17 1995 AT 645 PM...STRONG THUNDERSTORMS CONTINUED OVER MUCH OF ALBANY COUNTY...WESTERN LARAMIE COUNTY AND WESTERN PLATTE COUNTY. THESE STORMS CONTINUE TO MOVE RAPDILY NORTH AT 40 MPH. IN ADDITION...OTHER STRONG THUNDERSTORMS WERE LOCATED ALONG THE FRONT RANGE IN COLORADO AND WILL CONTINUE TO MOVE INTO SOUTHEAST WYOMING. MOST OF THESE STORMS WERE PRODUCING VERY HEAVY RAIN...SMALL HAIL...WIND GUSTS TO 40 MPH AND DANGEROUS LIGHTNING. DUE TO THE HEAVY RAINFALL...FLASH FLOODING OF STREAMS AND RIVERS IS POSSIBLE. THE THUNDERSTORMS WILL CONTINUE OVER THE SOUTHEAST PART OF WYOMING THROUGH EARLY TONIGHT. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM FOR SOUTHEAST WYOMING. IN ADDITION...A FLASH FLOOD WATCH HAS BEEN POSTED FOR AREAS IN AND NEAR THE EASTERN MOUNTAINS AND WYOMING BLACK HILLS UNTIL MIDN\IGHT. PEOPLE IN SOUTHEAST WYOMING SHOULD BE ALERT TO THE THUNDERSTORMS IN THE AREA THROUGH EARLY TONIGHT. IF A STORM APPROACHES... MOVE TO A SAFE SHELTER AND IF IN THE MOUNTAINS...BE SURE TO BE PREPARED TO MOVE TO HIGHER GROUND. WEILAND
Special weather statement, Jun 17, 6:57 PM MDT, 43 minutes before
WYZ059-060-067-068-180300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 655 PM MDT SAT JUN 17 1995 ...STRONG THUNDERSTORMS REDEVELOP IN SOUTHERN NIOBRARA AND NORTHERN PLATTE COUNTIES... AT 650 PM MDT...STRONG THUNDERSTORMS REDEVELOPED IN SOUTHERN NIOBRARA AND NORTHERN PLATTE COUNTIES. THE STRONGEST THUNDERSTORM IN NIOBRARA COUNTY WAS 8 MILES NORTHWEST OF LUSK. IN NORTHERN PLATTE COUNTY...THE STRONGEST THUNDERSTORM WAS 25 MILES NORTH OF WHEATLAND NEAR GLENDO. THERE IS A SEVERE THUNDERSTORM WATCH AND A FLASH FLOOD WATCH IN EFFECT FOR PLATTE COUNTY THIS EVENING. THESE TWO WATCHES DO NOT INCLUDE NIOBRARA COUNTY. HOWEVER THESE THUNDERSTORMS MAY PRODUCE LARGE HAIL... DAMAGING WINDS AND VERY HEAVY RAINS. CAMPERS IN THE GLENDO AREA ALONG RIVERS AND STREAMS SHOULD BE ALERT FOR RAPIDLY RISING WATER. DO NOT CAMP WITHIN A FEW FEET OF THE RIVER BANK. FLOOD WATERS MAY SWEEP THROUGH YOUR CAMP WHILE YOU SLEEP. W`CJIN-WYSE-WYNE. BAKER
Special weather statement, Jun 17, 7:20 PM MDT, 20 minutes before
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
Special weather statement, Jun 17, 7:21 PM MDT, 19 minutes before
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
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.