Alert archive / Wyoming / High Wind Warnings in 2021
High Wind Warning 59, NWS Cheyenne, WY
NWS Cheyenne, WY issued this high wind warning at Dec 16, 2021, 5:15 PM MST for 4 counties in Wyoming. It took effect at Dec 16, 2021, 11:00 PM MST. It was in force for 12 hr. 8 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Dec 16, 2021, 5:15 PM MST (00:15 UTC)
- In effect from
- Dec 16, 2021, 11:00 PM MST
- Expired
- Dec 17, 2021, 11:00 AM MST
- In force
- 12 hr
- Issued by
- NWS Cheyenne, WY
Counties Albany County, WY, Carbon County, WY, Laramie County, WY, Platte County, WY
The radar
The Cheyenne radar (KCYS), 88 km from the middle of the area, began a volume at 00:15 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 17, 8:00 AM MST | SNOW 5.4 | 1 Nnw Battle Creek Camp, WY | SANDSTONE RANGER STATION SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8150 FEET. SNOW WATER EQUIVALENT IS 0.3 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 18 TO 1. ACCUMULATION WAS OVER PAST 15 HOURS. |
| Dec 17, 8:00 AM MST | SNOW 6 | 8 Ene Hog Park Campgrou, WY | BLACKHALL MOUNTAIN SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 9820 FEET. SNOW WATER EQUIVALENT IS 0.3 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 15 HOURS. |
| Dec 17, 8:00 AM MST | SNOW 8 | 1 Nw Whiskey Park, WY | WHISKEY PARK SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8950 FEET. SNOW WATER EQUIVALENT IS 0.4 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 15 HOURS. |
| Dec 17, 8:00 AM MST | SNOW 8 | 2 Wsw Bottle Creek Camp, WY | WEBBER SPRINGS SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 9250 FEET. SNOW WATER EQUIVALENT IS 0.4 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 15 HOURS. |
| Dec 17, 8:00 AM MST | SNOW 10 | 2 E Battle Lake, WY | OLD BATTLE SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 10000 FEET. SNOW WATER EQUIVALENT IS 0.5 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 15 HOURS. |
| Dec 17, 8:00 AM MST | SNOW 10 | 3 Wnw Sugar Loaf Campgr, WY | MEDICINE BOW SNOTEL IN THE SNOWY RANGE. ELEVATION 10500 FEET. SNOW WATER EQUIVALENT IS 0.5 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 15 HOURS. |
| Dec 17, 8:00 AM MST | SNOW 10 | 4 Nw Hog Park Reservoir, WY | LITTLE SNAKE RIVER SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8915 FEET. SNOW WATER EQUIVALENT IS 0.5 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 20 TO 1. ACCUMULATION WAS OVER PAST 15 HOURS. |
| Dec 17, 11:00 AM MST | HIGH SUST WINDS 40 | 1 Nnw Arlington, WY | ARLINGTON WYDOT SITE. AVERAGE SUSTAINED WINDS 40 MPH FOR PAST HOUR. PEAK WIND GUST 57 MPH AT 1102 AM. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Riverton, WY (KRIW), launched 00:00Z, 0.3 hours before the alert went out and 278 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
- 1830 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- -18 m²/s²
- 0-3 km storm-relative helicity
- -10 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
365 WWUS75 KCYS 170015 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 515 PM MST Thu Dec 16 2021 WYZ106-110-171200- /O.NEW.KCYS.HW.W.0059.211217T0600Z-211217T1800Z/ Central Laramie Range and Southwest Platte County- North Snowy Range Foothills- Including the cities of Bordeaux, Arlington, and Elk Mountain 515 PM MST Thu Dec 16 2021 ...HIGH WIND WARNING IN EFFECT FROM 11 PM THIS EVENING TO 11 AM MST FRIDAY... * WHAT...West winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...Central Laramie Range and Southwest Platte County and North Snowy Range Foothills. * WHEN...From 11 PM this evening to 11 AM MST Friday. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. There will be a high risk for vehicle blow overs, particularly along north to south oriented roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$
2 follow-up statements
567 WWUS75 KCYS 171024 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 324 AM MST Fri Dec 17 2021 WYZ110-180000- /O.NEW.KCYS.HW.W.0060.211218T0400Z-211220T0000Z/ /O.CON.KCYS.HW.W.0059.000000T0000Z-211217T1800Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 324 AM MST Fri Dec 17 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... ...HIGH WIND WARNING IN EFFECT FROM 9 PM THIS EVENING TO 5 PM MST SUNDAY... * WHAT...West to southwest winds 35 to 50 MPH with gusts up to 75 MPH possible. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80 between Laramie and Rawlins. * WHEN...Two periods of strong winds, the first ending at 11 AM MST this morning. After a brief lull, a prolonged period of strong winds will occur from 9 PM MST today through at least 5 PM MST Sunday. The strongest winds are expected from Saturday afternoon through early Sunday. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. There will be a high risk for vehicle blow overs, particularly along north to south oriented roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ WYZ106-180000- /O.NEW.KCYS.HW.W.0060.211218T1200Z-211220T0000Z/ /O.CON.KCYS.HW.W.0059.000000T0000Z-211217T1800Z/ Central Laramie Range and Southwest Platte County- Including the city of Bordeaux 324 AM MST Fri Dec 17 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... ...HIGH WIND WARNING IN EFFECT FROM 5 AM SATURDAY TO 5 PM MST SUNDAY... * WHAT...West winds 35 to 50 MPH with gusts up to 75 MPH possible. * WHERE...Central Laramie Range including Bordeaux along Interstate 25 between Chugwater and Wheatland. * WHEN...Two periods of strong winds, the first ending at 11 AM MST this morning. A second and more prolonged period of strong winds will occur from 5 AM MST Saturday through at least 5 PM MST Sunday. The strongest winds are expected from late Saturday through early Sunday. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. There will be a high risk for vehicle blow overs, particularly along north to south oriented roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ CLH
415 WWUS75 KCYS 171801 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 1101 AM MST Fri Dec 17 2021 WYZ110-180215- /O.EXP.KCYS.HW.W.0059.000000T0000Z-211217T1800Z/ /O.CON.KCYS.HW.W.0060.211218T0400Z-211220T0000Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 1101 AM MST Fri Dec 17 2021 ...THE CURRENT HIGH WIND WARNING HAS BEEN ALLOWED TO EXPIRE... ...ANOTHER HIGH WIND WARNING WILL GO INTO EFFECT FROM 9 PM THIS EVENING TO 5 PM MST SUNDAY... * WHAT...West to southwest winds 35 to 50 MPH with gusts up to 75 MPH possible. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80 between Laramie and Rawlins. * WHEN...Winds will continue to dissipate through this afternoon before ramping back up this evening. After this brief lull, a prolonged period of strong winds will occur from 9 PM MST tonight through at least 5 PM MST Sunday. The strongest winds are expected from Saturday afternoon through early Sunday. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. There will be a high risk for vehicle blow overs, particularly along north to south oriented roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ WYZ106-180215- /O.EXP.KCYS.HW.W.0059.000000T0000Z-211217T1800Z/ /O.CON.KCYS.HW.W.0060.211218T1200Z-211220T0000Z/ Central Laramie Range and Southwest Platte County- Including the city of Bordeaux 1101 AM MST Fri Dec 17 2021 ...THE CURRENT HIGH WIND WARNING HAS BEEN ALLOWED TO EXPIRE.. ...ANOTHER HIGH WIND WARNING WILL GO INTO EFFECT FROM 5 AM SATURDAY TO 5 PM MST SUNDAY... * WHAT...West winds 35 to 50 MPH with gusts up to 75 MPH possible. * WHERE...Central Laramie Range including Bordeaux along Interstate 25 between Chugwater and Wheatland. * WHEN...Winds will continue to dissipate through this afternoon before ramping back up overnight. A more prolonged period of strong winds will occur from 5 AM MST Saturday through at least 5 PM MST Sunday. The strongest winds are expected from late Saturday through early Sunday. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. There will be a high risk for vehicle blow overs, particularly along north to south oriented roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. && $$ BW
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 17, 3:24 AM MST | High Wind Warning | CYS | Albany, Carbon, Laramie, Platte | 68 hr |
Nearby
High Wind Warnings in Wyoming, 2021Every high wind warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.