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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Riverton WY
328 AM MDT Sat Apr 1 2023

WYZ001>020-022>030-021330-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Big Horn Basin-Southwest Big Horn Basin-
Southeast Big Horn Basin-Owl Creek and Bridger Mountains-
Bighorn Mountains West-Bighorn Mountains Southeast-
Northeast Johnson County-Southeast Johnson County-
Teton and Gros Ventre Mountains-Jackson Hole-
Wind River Mountains West-Wind River Mountains East-
Upper Wind River Basin-Wind River Basin-Lander Foothills-
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-Casper Mountain-Star Valley-
Salt River and Wyoming Ranges-Upper Green River Basin Foothills-
Upper Green River Basin-South Lincoln County-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
328 AM MDT Sat Apr 1 2023

...Multiple Winter Weather highlights Advisories in effect...

...High Wind Warnings in effect for portions of central Wyoming
today through tonight...

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and Tonight.

Light to moderate snow across the west. Strong to high winds across
portions of central Wyoming, mainly in sections of southern Fremont
County and Natrona County. Please see the High Wind Warning and the
other winter weather highlights for additional details.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Sunday...Light snow continuing across the west.

Monday and Tuesday...Increasing snow across southern portions Sunday
night, spreading into central portions early Monday morning.
Moderate to heavy snow is possible in these areas through Monday
night. Light to moderate snow expected elsewhere. Unseasonably cold.

Wednesday...High temperatures 20 to 30 degrees below normal.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

$$



Winter Storm Watch

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
310 AM MDT Sat Apr 1 2023

WYZ017-018-020-022-012200-
/O.NEW.KRIW.WS.A.0009.230403T1200Z-230405T0000Z/
Wind River Basin-Lander Foothills-Natrona County Lower Elevations-
Casper Mountain-
Including the cities of Riverton, Shoshoni, Lander, and Casper
310 AM MDT Sat Apr 1 2023

...WINTER STORM WATCH IN EFFECT FROM MONDAY MORNING THROUGH
TUESDAY AFTERNOON...

* WHAT...Heavy snow possible. Total snow accumulations of 10 to 18
  inches possible across the Wind River Basin; snow accumulations
  of 12 to 24 inches possible across Natrona County; snow
  accumulations of 25 to 35 inches across Casper Mountain.

* WHERE...Wind River Basin, Lander Foothills, Natrona County
  Lower Elevations and Casper Mountain.

* WHEN...From Monday morning through Tuesday afternoon.

* IMPACTS...Travel could be very difficult to impossible. Heavy
  snow could reduce visibilities at times and create slick
  driving conditions.

* ADDITIONAL DETAILS...Snow may melt during the day, especially on
  paved surfaces, resulting in accumulations less than forecasted
  totals.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

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



High Wind Warning

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
218 AM MDT Sat Apr 1 2023

WYZ015-018-012200-
/O.EXT.KRIW.HW.W.0009.230401T1500Z-230402T0500Z/
Wind River Mountains East-Lander Foothills-
Including the city of Lander
218 AM MDT Sat Apr 1 2023

...HIGH WIND WARNING NOW IN EFFECT FROM 9 AM THIS MORNING TO
11 PM MDT THIS EVENING...

* WHAT...Southwest winds 35 to 45 mph with gusts up to 70 mph
  expected in the mountains. Up to 60 mph possible in the Lander
  Foothills. Gusts of 70 to 80 mph possible along Wyoming
  Highway 28 at Red Canyon.

* WHERE...Wind River Mountains East and Lander Foothills.

* WHEN...From 9 AM this morning to 11 PM MDT this evening.

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

* ADDITIONAL DETAILS...The greatest potential for high wind in
  Lander is late Saturday afternoon and evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution if driving. Fasten loose objects or shelter objects
in a safe location prior to the onset of winds.

&&

$$

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



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Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: May 16, 2007
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