Alert archive / Wyoming / Severe Thunderstorm Warnings in 1995
Severe Thunderstorm Warning 45, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Jul 21, 1995, 7:12 PM MDT for Laramie County, Wyoming. It was in force for 63 min.
The area
The counties it named.
The facts
- Issued
- Jul 21, 1995, 7:12 PM MDT (01:12 UTC)
- Expired
- Jul 21, 1995, 8:15 PM MDT
- In force
- 63 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 01:12 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, 1.2 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.
- Mixed-layer CAPE
- 2 J/kg
- Mixed-layer CIN
- -308 J/kg
- Mixed-layer LCL
- 2998 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 76 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCYS 220114 SVRCYS WYC021-220215- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CHEYENNE WY 712 PM MDT FRI JUL 21 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 ...SOUTHEASTERN LARAMIE COUNTY AT 705PM THE DOPPLER RADAR SHOWED THE DAMAGING THUNDERSTORM WINDS HAD SHIFTED TO SOUTHEAST LARAMIE COUNTY. THE SEVERE THUNDERSTORM WAS NOW EAST OF CHEYENNE AND MOVING EAST AT 25 MILES AN HOUR. THIS WARNING INCLUDES CARPENTER...BURNS AND PINE BLUFFS BUT NO LONGER INCLUDES THE CITY OF CHEYENNE. WIND GUSTS TO AROUND 60 MILES AN HOUR WERE LOGGED AT THE CHEYENNE AIRPORT AND ON THE SOUTH END OF DOWNTOWN CHEYENNE WHEN THE STORM MOVED THROUGH. THIS STORM HAS A HISTORY OF DAMAGING WIND. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS! WCJIN-WYSE COX
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, Jul 21, 4:06 PM MDT, 3 hours 6 minutes before
NEZ020-021-054-055-212300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 405 PM MDT FRI JUL 21 1995 ...THUNDERSTORMS CONTINUE OVER PARTS OF THE NEBRASKA PANHANDLE... THUNDERSTORMS CONTINUE TO DEVELOP AND MOVE ACROSS THE NEBRASKA PANHANDLE. SHORTLY BEFORE 4 PM...THE STRONGEST WAS NEAR THE JUNCTIONS OF THE BORDERS OF BANNER...MORRILL...KIMBALL...AND CHEYENNE COUNTIES. THIS WAS ABOUT 30 MILES NORTHWEST OF SIDYNEY. THE STORMS WERE MOVING EAST AROUND 25 MILES AN HOUR. SMALL HAIL...BRIEF HEAVY RAIN...STRONG WINDS...AND DANGEROUS LIGHTNING CAN BE EXPECTED WITH THESE STORMS. TAKE SHELTER...PREFERABLY INDOORS ...IF THREATENING WEATHER APPROACHES. CGB
Special weather statement, Jul 21, 4:15 PM MDT, 2 hours 57 minutes before
NEZ054-212315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 415 PM MDT FRI JUL 21 1995 ...ANOTHER THUNDERSTORM HAS ENTERRED WESTERN KIMBALL COUNTY... AT 410 PM...A STRONG THUNDERSTORM WAS INDICATED IN SOUTHWEST KIMBALL COUNTY. IT WAS ABOUT 15 MILES SOUTHWEST OF KIMBALL. THIS STORM WAS MOVING EAST AROUND 30 MILES AN HOUR. DANGEROUS LIGHTNING...BRIEFY HEAVY RAIN...AND POSSIBLY SMALL HAIL CAN BE EXPECTED FROM THIS STORM. BE PREPARED TO TAKE SHELTER...PREFERABLY INDOORS...IF THREATENING WEATHER APPROACHES. CGB
Special weather statement, Jul 21, 4:17 PM MDT, 2 hours 55 minutes before
NEZ054-212315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 415 PM MDT FRI JUL 21 1995 ...ANOTHER THUNDERSTORM HAS ENTERRED WESTERN KIMBALL COUNTY... AT 410 PM...A STRONG THUNDERSTORM WAS INDICATED IN SOUTHWEST KIMBALL COUNTY. IT WAS ABOUT 15 MILES SOUTHWEST OF KIMBALL. THIS STORM WAS MOVING EAST AROUND 30 MILES AN HOUR. DANGEROUS LIGHTNING...BRIEFY HEAVY RAIN...AND POSSIBLY SMALL HAIL CAN BE EXPECTED FROM THIS STORM. BE PREPARED TO TAKE SHELTER...PREFERABLY INDOORS...IF THREATENING WEATHER APPROACHES. CGB
Special weather statement, Jul 21, 4:22 PM MDT, 2 hours 50 minutes before
WYZ018-020>025-061>063-212320- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 422 PM MDT FRI JUL 21 1995 ...STRONG THUNDERSTORMS CONTINUED IN SOUTHWEST AND SOUTH CENTRAL WYOMING... AT 415 PM...THUNDERSTORMS CONTINUED TO RUMBLE IN SOUTHWEST AND SOUTH CENTRAL WYOMING. THE STRONGEST STORM WAS LOCATED IN WESTERN SWEETWATER COUNTY. THIS STORM WAS PRODUCING STRONG GUSTY WINDS... HEAVY RAIN...AND DANGEROUS LIGHTNING. OTHER STORMS WERE SCATTERED ABOUT UINTA...LINCOLN...SWEETWATER...AND CARBON COUNTIES. ALL STORMS WERE MOVING EAST AROUND 25 MPH. THE STRONG THUNDERSTORM IN WESTERN SWEETWATER COUNTY WILL BE AFFECTING FLAMING GORGE RESERVOIR FOR THE NEXT HALF AN HOUR. WINDS MAY REACH AS HIGH AS 50 MPH WITH THIS STORM. PEOPLE IN SOUTHWEST AND SOUTH CENTRAL WYOMING CAN EXPECT THUNDERSTORMS THROUGH THE EARLY EVENING HOURS. THESE STORMS WILL PRODUCE HEAVY RAIN...DANGEROUS LIGHTNING...AND WIND GUSTS BETWEEN 40 AND 50 MPH. IF A STORM APPROACHES YOUR AREA...MOVE TO A SAFE SHELTER IF POSSIBLE. WCJIN-WYSW-WYSE DJV
Special weather statement, Jul 21, 5:05 PM MDT, 2 hours 7 minutes before
NEZ021-055-220000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 505 PM MDT FRI JUL 21 1995 ...THUNDERSTORMS CONTINUE OVER PARTS OF THE NEBRASKA PANHANDLE... THUNDERSTORMS CONTINUED TO MOVE ACROSS PARTS OF THE CENTRAL AND SOUTHERN NEBRASKA PANHANDLE. AROUND 500 PM THE STRONGEST WERE OVER NORTHERN CHEYENNE AND SOUTHERN MORRILL COUNTIES. THEY WERE MOVING EAST AROUND 25 MILES AN HOUR. TOTAL POSSIBLE RAINFALL AMOUNTS FROM THESE STORMS BETWEEN HALF AN INCH AND AN INCH WERE INDICATED. IN ADDITION TO BRIEF HEAVY RAIN...DANGEROUS LIGHTNING AND SMALL HAIL ARE POSSIBLE. BE PREPARED TO MOVE TO A SAFE PLACE...PREFERABLY INDOORS...IF THREATENING WEATHER APPROACHES. CGB
Special weather statement, Jul 21, 5:30 PM MDT, 1 hour 42 minutes before
WYZ016>018-020>025-061>066-220030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 530 PM MDT FRI JUL 21 1995 ...THUNDERSTORMS CONTINUED TO DEVELOP IN SOUTHERN WYOMING... AT 525 PM...STRONG THUNDERSTORMS CONTINUED IN SOUTHERN WYOMING. MOST OF THESE STORMS WERE PRODUCING WIND GUSTS BETWEEN 40 AND 50 MPH... HEAVY RAIN...DANGEROUS LIGHTNING...AS WELL AS SOME SMALL HAIL. ALL STORMS WERE MOVING EAST AROUND 25 MPH. PEOPLE IN SOUTHERN WYOMING CAN EXPECT THUNDERSTORMS THROUGH THE EARLY EVENING HOURS. WITH THE HEAVY RAIN...LOCALIZED FLOODING OF URBAN AND LOW LYING AREAS CAN BE EXPECTED. BOATERS SHOULD REMAIN ALERT TO THE THREAT OF DANGEROUS LIGHTNING AND STRONG WINDS. IF A STORM APPROACHES YOUR AREA...MOVE TO A SAFE SHELTER IF POSSIBLE. WCJIN-WYSW-WYSE DJV
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 6:24 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 51 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.