Alert archive / Wyoming / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 164, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Aug 24, 2008, 5:14 PM MDT for Converse County, Niobrara County, Wyoming. It was in force for 61 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 24, 2008, 5:14 PM MDT (23:14 UTC)
- Expired
- Aug 24, 2008, 6:15 PM MDT
- In force
- 61 min
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
Counties Converse County, WY, Niobrara County, WY
The radar
The Cheyenne radar (KCYS), 208 km from the middle of the area, began a volume at 23:17 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 12:00Z, 11.2 hours before the alert went out and 379 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2411 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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.
NWS Cheyenne, WY wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 24, 2:52 PM MDT, 2 hours 22 minutes earlier.
Area forecast discussion, Aug 24, 2:52 PM MDT, 2 hours 22 minutes before
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</html>Hazardous weather outlook, Aug 24, 10:53 AM MDT, 6 hours 21 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHEYENNE WY 1053 AM MDT SUN AUG 24 2008 NEZ001>003-019>021-054-055-WYZ060-067>070-251700- SIOUX-DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL- CHEYENNE-NIOBRARA-PLATTE-GOSHEN-CHEYENNE FOOTHILLS-PINE BLUFFS- 1053 AM MDT SUN AUG 24 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN NEBRASKA PANHANDLE AND SOUTHEAST WYOMING. .DAY ONE...TODAY AND TONIGHT SCATTERED THUNDERSTORMS WILL DEVELOP THROUGH THE AFTERNOON AND EARLY EVENING. SOME OF THE STORMS MAY BE SEVERE...ESPECIALLY EAST OF INTERSTATE 25. THE STRONGER STORMS WILL BE CAPABLE OF PRODUCING LARGE HAIL AND GUSTY WINDS IN EXCESS OF 60 MPH. ALSO WITH THE EXPECTED SLOWER MOVEMENT OF THE STORMS THERE COULD BE BRIEF HEAVY RAIN. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THERE IS A SLIGHT CHANCE OF LATE DAY THUNDERSTORMS ALONG THE WYOMING AND COLORADO BORDER ON MONDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT. && THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT... HTTP://WEATHER.GOV/CHEYENNE WYZ059-061>066-251700- CONVERSE-SOUTHWEST CARBON-NORTH CARBON-SNOWY RANGE- NORTH LARAMIE RANGE-LARAMIE VALLEY-LARAMIE RANGE- 1053 AM MDT SUN AUG 24 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST WYOMING. .DAY ONE...TODAY AND TONIGHT SCATTERED THUNDERSTORMS WILL DEVELOP THROUGH THE AFTERNOON AND EARLY EVENING. GUSTY WINDS AND SMALL HAIL WILL BE THE MAIN THREAT WITH THE STORMS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THERE IS A SLIGHT CHANCE OF LATE DAY THUNDERSTORMS ALONG THE WYOMING AND COLORADO BORDER ON MONDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT. && THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT... HTTP://WEATHER.GOV/CHEYENNE
In the hours before
Special weather statement, Aug 24, 1:50 PM MDT, 3 hours 24 minutes before
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</html>Special weather statement, Aug 24, 3:50 PM MDT, 1 hour 24 minutes before
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</html>Special weather statement, Aug 24, 4:15 PM MDT, 59 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 415 PM MDT SUN AUG 24 2008 WYZ066-067-250015- LARAMIE RANGE-PLATTE- INCLUDING THE CITIES OF...BUFORD...HORSE CREEK...WHEATLAND... GUERNSEY 414 PM MDT SUN AUG 24 2008 STRONG THUNDERSTORMS WILL CONTINUE TO MOVE SOUTHEAST ACROSS FAR SOUTHWEST PORTIONS OF PLATTE COUNTY AND NORTHWEST PORTIONS OF LARAMIE COUNTY THROUGH 515 PM MDT. THESE STORMS ARE CAPABLE OF PRODUCING WIND GUSTS UP TO 45 MPH...PEAS SIZE HAIL...AND BRIEF HEAVY RAIN. THESE STORMS ARE SLOWLY MOVING SOUTHEAST AT 10 MPH.
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 2:57 PM MDT | Severe Thunderstorm Warning | CYS | Albany, Laramie | 48 min |
| Aug 24, 4:58 PM MDT | Areal Flood Advisory | CYS | Albany, Laramie, Platte | 4 hr |
| Aug 24, 5:54 PM MDT | Severe Thunderstorm Warning | CYS | Converse, Niobrara | 39 min |
Nearby
Severe Thunderstorm Warnings in Wyoming, 2008Every severe thunderstorm warning in 2008
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.