Alert archive / Wyoming / High Wind Warnings in 2021

High Wind Warning 21, NWS Riverton, WY

December 10, 20216 counties in Wyoming

NWS Riverton, WY issued this high wind warning at Dec 10, 2021, 2:28 PM MST for 6 counties in Wyoming. It took effect at Dec 11, 2021, 3:38 AM MST. It was in force for 37 hr. 5 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 10, 2021, 2:28 PM MST (21:28 UTC)
In effect from
Dec 11, 2021, 3:38 AM MST
Expired
Dec 12, 2021, 5:00 PM MST
In force
37 hr
Issued by
NWS Riverton, WY

Counties Fremont County, WY, Hot Springs County, WY, Natrona County, WY, Park County, WY, Sublette County, WY, Sweetwater County, WY

The radar

The Riverton/Lander radar (KRIW), 19 km from the middle of the area, began a volume at 21:32 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

TimeReportWhereRemark
Dec 11, 1:45 PM MSTNON-TSTM WND GST 586 Nw Mills, WYASOS STATION KCPR CASPER AIRPORT.
Dec 11, 2:12 PM MSTNON-TSTM WND GST 656 Nw Mills, WYASOS STATION KCPR CASPER AIRPORT.
Dec 12, 2:53 AM MSTNON-TSTM WND GST 616 Nw Mills, WYASOS STATION KCPR CASPER AIRPORT.
Dec 12, 5:17 AM MSTNON-TSTM WND GST 626 Nw Mills, WYASOS STATION KCPR CASPER AIRPORT.
Dec 12, 12:45 PM MSTNON-TSTM WND DMGCasper, WYSHEET METAL BARN AT THE CENTRAL WYOMING FAIRGROUNDS LIFTED AND THROWN AGAINST A TELEPHONE POLE. 1 INJURY TO A HORSE. TIME OF EVENT IS ESTIMATED BASED ON REPORT VIA LOCAL PD FACEBOOK POST. METAL DEBRIS WAS STREWN, CAUSING ROAD CLOSURE.

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 12:00Z, 9.5 hours before the alert went out and 25 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, Riverton, WY at 12:00Z on 2021-12-10Temperature 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 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Riverton, WY at 12:00Z on 2021-12-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -70 square meters per square second.1939587897Sfc1 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
788 m above ground
0-6 km bulk shear
78 kt
0-1 km storm-relative helicity
-70 m²/s²
0-3 km storm-relative helicity
-37 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

851 
WWUS75 KRIW 102128
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
228 PM MST Fri Dec 10 2021

WYZ019-020-111300-
/O.NEW.KRIW.HW.W.0021.211211T1400Z-211212T0600Z/
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-
Including the cities of Jeffrey City and Casper
228 PM MST Fri Dec 10 2021

...HIGH WIND WARNING IN EFFECT FROM 7 AM TO 11 PM MST SATURDAY...

* WHAT...Southwest winds 25 to 40 mph with gusts up to 60 mph 
  expected.

* WHERE...Green Mountains and Rattlesnake Range and Natrona 
  County Lower Elevations.

* WHEN...From 7 AM to 11 PM MST Saturday.

* IMPACTS...Mainly to transportation. Enhanced blowover risk risk
  for lightweight and high-profile vehicles, including campers and
  tractor trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution if you must drive. In a parking lot, park into the
wind to minimize the possibility of your car door hitting another
parked vehicle.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/riw
6 follow-up statements
174 
WWUS75 KRIW 111038
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
338 AM MST Sat Dec 11 2021

WYZ019-020-112200-
/O.EXT.KRIW.HW.W.0021.211211T1038Z-211212T0600Z/
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-
Including the cities of Jeffrey City and Casper
338 AM MST Sat Dec 11 2021

...HIGH WIND WARNING NOW IN EFFECT UNTIL 11 PM MST THIS EVENING...

* WHAT...Southwest winds 30 to 40 mph with gusts up to 65 mph.

* WHERE...Green Mountains and Rattlesnake Range and Natrona 
  County Lower Elevations.

* WHEN...Until 11 PM MST this evening.

* IMPACTS...Mainly to transportation. Enhanced blowover risk 
  risk for lightweight and high-profile vehicles, including 
  campers and tractor trailers.


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.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/riw
049 
WWUS75 KRIW 111521
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
821 AM MST Sat Dec 11 2021

WYZ002-112330-
/O.EXB.KRIW.HW.W.0021.000000T0000Z-211213T0000Z/
Absaroka Mountains-
821 AM MST Sat Dec 11 2021

...HIGH WIND WARNING IN EFFECT UNTIL 5 PM MST SUNDAY...

* WHAT...West winds 30 to 50 mph with gusts up to 80 mph.

* WHERE...Absaroka Mountains.

* WHEN...Until 5 PM MST Sunday.

* IMPACTS...Mainly to transportation. Enhanced blowover risk for 
  lightweight and high-profile vehicles, including campers and 
  tractor trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park 
into the wind to minimize the possibility of your car door 
hitting another parked vehicle.

&&

$$

WYZ015-112330-
/O.EXB.KRIW.HW.W.0021.000000T0000Z-211213T0000Z/
Wind River Mountains East-
821 AM MST Sat Dec 11 2021

...HIGH WIND WARNING IN EFFECT UNTIL 5 PM MST SUNDAY...

* WHAT...Southwest winds 35 to 55 mph with gusts up to 80 mph.

* WHERE...Wind River Mountains East.

* WHEN...Until 5 PM MST Sunday.

* IMPACTS...Strong winds will enhance the blowover risk for
  lightweight and high-profile vehicles, including campers and
  tractor trailers. This includes along South Pass and Red 
  Canyon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park 
into the wind to minimize the possibility of your car door 
hitting another parked vehicle.

&&

$$

WYZ019-020-112330-
/O.EXT.KRIW.HW.W.0021.000000T0000Z-211213T0000Z/
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-
Including the cities of Jeffrey City and Casper
821 AM MST Sat Dec 11 2021

...HIGH WIND WARNING NOW IN EFFECT UNTIL 5 PM MST SUNDAY...

* WHAT...Southwest winds 30 to 40 mph with gusts up to 65 mph.

* WHERE...Green Mountains and Rattlesnake Range and Natrona 
  County Lower Elevations.

* WHEN...Until 5 PM MST Sunday.

* IMPACTS...Mainly to transportation. Enhanced blowover risk risk
  for lightweight and high-profile vehicles, including campers and
  tractor trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park 
into the wind to minimize the possibility of your car door 
hitting another parked vehicle.

&&

$$

WYZ003-112330-
/O.NEW.KRIW.HW.A.0016.211212T0200Z-211213T0000Z/
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
821 AM MST Sat Dec 11 2021

...HIGH WIND WATCH IN EFFECT FROM 7 PM MST THIS EVENING THROUGH
SUNDAY AFTERNOON...

* WHAT...Southwest winds 30 to 40 mph with gusts up to 75 mph 
  possible.

* WHERE...Cody Foothills.

* WHEN...From 7 PM MST this evening through Sunday afternoon.

* IMPACTS...Strong winds will enhance the blowover risk for
  lightweight and high-profile vehicles, including campers and
  tractor trailers. This includes along Highway 120.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park 
into the wind to minimize the possibility of your car door 
hitting another parked vehicle.

&&

$$

WYZ018-112330-
/O.NEW.KRIW.HW.A.0016.211212T0200Z-211213T0000Z/
Lander Foothills-
Including the city of Lander
821 AM MST Sat Dec 11 2021

...HIGH WIND WATCH IN EFFECT FROM 7 PM MST THIS EVENING THROUGH
SUNDAY AFTERNOON...

* WHAT...South winds 25 to 35 mph with gusts up to 60 mph 
  possible.

* WHERE...Lander Foothills.

* WHEN...From 7 PM MST this evening through Sunday afternoon.

* IMPACTS...Strong winds will enhance the blowover risk for
  lightweight and high-profile vehicles, including campers and
  tractor trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park 
into the wind to minimize the possibility of your car door 
hitting another parked vehicle.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/riw
860 
WWUS75 KRIW 112020
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
120 PM MST Sat Dec 11 2021

WYZ003-121300-
/O.UPG.KRIW.HW.A.0016.211212T0200Z-211213T0000Z/
/O.EXB.KRIW.HW.W.0021.211212T0200Z-211213T0000Z/
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
120 PM MST Sat Dec 11 2021

...HIGH WIND WARNING IN EFFECT FROM 7 PM THIS EVENING TO 5 PM MST
SUNDAY...

* WHAT...Southwest winds 25 to 35 mph with gusts up to 70 mph 
  expected.

* WHERE...Cody Foothills.

* WHEN...From 7 PM this evening to 5 PM MST Sunday.

* IMPACTS...Strong winds will enhance the blowover risk for
  lightweight and high-profile vehicles, including campers and
  tractor trailers. This includes along Highway 120.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park 
into the wind to minimize the possibility of your car door 
hitting another parked vehicle.

&&

$$

WYZ018-121300-
/O.UPG.KRIW.HW.A.0016.211212T0200Z-211213T0000Z/
/O.EXB.KRIW.HW.W.0021.211212T0200Z-211213T0000Z/
Lander Foothills-
Including the city of Lander
120 PM MST Sat Dec 11 2021

...HIGH WIND WARNING IN EFFECT FROM 7 PM THIS EVENING TO 5 PM MST
SUNDAY...

* WHAT...South winds 30 to 40 mph with gusts up to 65 mph 
  expected.

* WHERE...Lander Foothills.

* WHEN...From 7 PM this evening to 5 PM MST Sunday.

* IMPACTS...Strong winds will enhance the blowover risk for
  lightweight and high-profile vehicles, including campers and
  tractor trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park 
into the wind to minimize the possibility of your car door 
hitting another parked vehicle.


&&

$$

WYZ019-020-121300-
/O.CON.KRIW.HW.W.0021.000000T0000Z-211213T0000Z/
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-
Including the cities of Jeffrey City and Casper
120 PM MST Sat Dec 11 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY...

* WHAT...Southwest winds 30 to 40 mph with gusts up to 70 mph.

* WHERE...Green Mountains and Rattlesnake Range and Natrona 
  County Lower Elevations.

* WHEN...Until 5 PM MST Sunday.

* IMPACTS...Mainly to transportation. Enhanced blowover risk risk
  for lightweight and high-profile vehicles, including campers and
  tractor trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park 
into the wind to minimize the possibility of your car door 
hitting another parked vehicle.


&&

$$

WYZ002-121300-
/O.CON.KRIW.HW.W.0021.000000T0000Z-211213T0000Z/
Absaroka Mountains-
120 PM MST Sat Dec 11 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY...

* WHAT...West winds 30 to 50 mph with gusts up to 80 mph.

* WHERE...Absaroka Mountains.

* WHEN...Until 5 PM MST Sunday.

* IMPACTS...Mainly to transportation. Enhanced blowover risk for
  lightweight and high-profile vehicles, including campers and
  tractor trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park 
into the wind to minimize the possibility of your car door 
hitting another parked vehicle.

&&

$$

WYZ015-121300-
/O.CON.KRIW.HW.W.0021.000000T0000Z-211213T0000Z/
Wind River Mountains East-
120 PM MST Sat Dec 11 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY...

* WHAT...Southwest winds 35 to 55 mph with gusts up to 80 mph.

* WHERE...Wind River Mountains East.

* WHEN...Until 5 PM MST Sunday.

* IMPACTS...Strong winds will enhance the blowover risk for
  lightweight and high-profile vehicles, including campers and
  tractor trailers. This includes along South Pass and Red Canyon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/riw
735 
WWUS75 KRIW 120258
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
758 PM MST Sat Dec 11 2021

WYZ019-020-121300-
/O.CON.KRIW.HW.W.0021.000000T0000Z-211213T0000Z/
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-
Including the cities of Jeffrey City and Casper
758 PM MST Sat Dec 11 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY...

* WHAT...Southwest winds 35 to 45 mph with gusts up to 70 mph.

* WHERE...Green Mountains and Rattlesnake Range and Natrona 
  County Lower Elevations.

* WHEN...Until 5 PM MST Sunday.

* IMPACTS...Mainly to transportation. Enhanced blow over risk 
  risk for lightweight and high-profile vehicles, including 
  campers and tractor trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

&&

$$

WYZ002-121300-
/O.CON.KRIW.HW.W.0021.000000T0000Z-211213T0000Z/
Absaroka Mountains-
758 PM MST Sat Dec 11 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY...

* WHAT...West winds 45 to 55 mph with gusts up to 80 mph.

* WHERE...Absaroka Mountains. This includes the Chief Joseph
  Scenic Highway.

* WHEN...Until 5 PM MST Sunday.

* IMPACTS...Mainly to transportation. Enhanced blow over risk for
  lightweight and high-profile vehicles, including campers and 
  tractor trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

&&

$$

WYZ015-121300-
/O.CON.KRIW.HW.W.0021.000000T0000Z-211213T0000Z/
Wind River Mountains East-
758 PM MST Sat Dec 11 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY...

* WHAT...Southwest winds 45 to 55 mph with gusts up to 80 mph.

* WHERE...Wind River Mountains East, including South Pass and Red
  Canyon.

* WHEN...Until 5 PM MST Sunday.

* IMPACTS...Strong winds will enhance the blowover risk for
  lightweight and high-profile vehicles, including campers and
  tractor trailers. This includes South Pass and Red Canyon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

&&

$$

WYZ003-121300-
/O.CON.KRIW.HW.W.0021.000000T0000Z-211213T0000Z/
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
758 PM MST Sat Dec 11 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY...

* WHAT...West to southwest winds 35 to 45 mph with gusts up to 70
  mph. Wind gusts up to 85 mph possible near and west of Clark. 

* WHERE...Cody Foothills.

* WHEN...From 7 PM this evening to 5 PM MST Sunday.

* IMPACTS...Strong winds will enhance the blowover risk for 
  lightweight and high-profile vehicles, including campers and 
  tractor trailers. This includes along Highway 120.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

&&

$$

WYZ018-121300-
/O.CON.KRIW.HW.W.0021.000000T0000Z-211213T0000Z/
Lander Foothills-
Including the city of Lander
758 PM MST Sat Dec 11 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY...

* WHAT...Occasional southwest winds 30 to 40 mph with gusts up to
  65 mph expected. These strong winds will not be continuous
  overnight and Sunday.

* WHERE...Lander Foothills.

* WHEN...From 7 PM this evening to 5 PM MST Sunday.

* IMPACTS...Strong winds will enhance the blowover risk for 
  lightweight and high-profile vehicles, including campers and 
  tractor trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/riw
988 
WWUS75 KRIW 120906
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
206 AM MST Sun Dec 12 2021

WYZ019-020-130000-
/O.CON.KRIW.HW.W.0021.000000T0000Z-211213T0000Z/
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-
Including the cities of Jeffrey City and Casper
206 AM MST Sun Dec 12 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

* WHAT...Southwest winds 35 to 45 mph with gusts up to 70 mph.

* WHERE...Green Mountains and Rattlesnake Range and Natrona 
  County Lower Elevations.

* WHEN...Until 5 PM MST this afternoon.

* IMPACTS...Mainly to transportation. Enhanced blow over risk 
  risk for lightweight and high-profile vehicles, including 
  campers and tractor trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

&&

$$

WYZ002-130000-
/O.CON.KRIW.HW.W.0021.000000T0000Z-211213T0000Z/
Absaroka Mountains-
206 AM MST Sun Dec 12 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

* WHAT...West winds 45 to 55 mph with gusts up to 75 mph.

* WHERE...Absaroka Mountains. This includes the Chief Joseph 
  Scenic Highway.

* WHEN...Until 5 PM MST this afternoon.

* IMPACTS...Mainly to transportation. Enhanced blow over risk 
  for lightweight and high-profile vehicles, including campers 
  and tractor trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

&&

$$

WYZ015-130000-
/O.CON.KRIW.HW.W.0021.000000T0000Z-211213T0000Z/
Wind River Mountains East-
206 AM MST Sun Dec 12 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

* WHAT...Southwest winds 45 to 55 mph with gusts up to 75 mph.

* WHERE...Wind River Mountains East, including South Pass and 
  Red Canyon.

* WHEN...Until 5 PM MST this afternoon.

* IMPACTS...Strong winds will enhance the blowover risk for 
  lightweight and high-profile vehicles, including campers and 
  tractor trailers. This includes South Pass and Red Canyon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

&&

$$

WYZ003-130000-
/O.CON.KRIW.HW.W.0021.000000T0000Z-211213T0000Z/
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
206 AM MST Sun Dec 12 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

* WHAT...West to southwest winds 35 to 45 mph with gusts up to 
  70 mph. Wind gusts up to 80 mph possible near and west of 
  Clark.

* WHERE...Cody Foothills.

* WHEN...Until 5 PM MST this afternoon.

* IMPACTS...Strong winds will enhance the blowover risk for 
  lightweight and high-profile vehicles, including campers and 
  tractor trailers. This includes along Highway 120.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

&&

$$

WYZ018-130000-
/O.CON.KRIW.HW.W.0021.000000T0000Z-211213T0000Z/
Lander Foothills-
Including the city of Lander
206 AM MST Sun Dec 12 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

* WHAT...Occasional southwest winds 30 to 40 mph with gusts up to
  65 mph expected. These strong winds will not be continuous.

* WHERE...Lander Foothills.

* WHEN...Until 5 PM MST this afternoon.

* IMPACTS...Strong winds will enhance the blowover risk for 
  lightweight and high-profile vehicles, including campers and 
  tractor trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Use caution if you must drive. In a parking lot, park
into the wind to minimize the possibility of your car door
hitting another parked vehicle.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/riw
115 
WWUS75 KRIW 122349
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
449 PM MST Sun Dec 12 2021

WYZ019-020-130100-
/O.EXP.KRIW.HW.W.0021.000000T0000Z-211213T0000Z/
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-
Including the cities of Jeffrey City and Casper
449 PM MST Sun Dec 12 2021

...HIGH WIND WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON...

Wind speeds have gradually decreased this afternoon and have
dropped below high wind criteria. Winds of 25 to 35 mph with gusts
to 45 mph will continue tonight.

$$

WYZ002-130100-
/O.EXP.KRIW.HW.W.0021.000000T0000Z-211213T0000Z/
Absaroka Mountains-
449 PM MST Sun Dec 12 2021

...HIGH WIND WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON...

Winds have decreased this afternoon dropping below high wind
criteria, therefore the high wind warning will be allowed to
expire. Gusts to 50 mph are still possible at times.

$$

WYZ015-130100-
/O.EXP.KRIW.HW.W.0021.000000T0000Z-211213T0000Z/
Wind River Mountains East-
449 PM MST Sun Dec 12 2021

...HIGH WIND WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON...

Winds have decreased this afternoon dropping below high wind
criteria, therefore the high wind warning will be allowed to
expire. Gusts to 50 mph are still possible at times around Red
Canyon tonight.

$$

WYZ003-130100-
/O.EXP.KRIW.HW.W.0021.000000T0000Z-211213T0000Z/
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
449 PM MST Sun Dec 12 2021

...HIGH WIND WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON...

Winds have decreased this afternoon dropping below high wind
criteria, therefore the high wind warning will be allowed to
expire.

$$

WYZ018-130100-
/O.EXP.KRIW.HW.W.0021.000000T0000Z-211213T0000Z/
Lander Foothills-
Including the city of Lander
449 PM MST Sun Dec 12 2021

...HIGH WIND WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON...

The threat of high wind has ended, therefore the high wind warning
will be allowed to expire.

$$

For more information from the National Weather Service visit
https://weather.gov/riw

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.