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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Riverton WY
246 AM MDT Fri Oct 20 2017

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-
246 AM MDT Fri Oct 20 2017


This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and tonight.

Gusty southwest winds will develop this morning, becoming strong
by mid to late morning, across portions of southeast Fremont to
Natrona County. Southwest winds of 30 to 40 mph with gusts of 60
to 65 mph are expected. Gusts up to 70 mph will be possible over
Outer Drive on the south side of Casper. Gusty winds of 35 to 45
mph expected elsewhere east of the Divide, as well as in the

Accumulating snowfall in the western mountains this afternoon,
accumulating in the valleys tonight. Winds could mix with the
snow, impacting visibilities over the western passes.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Saturday night and Sunday...Strong winds possible in the
Absaroka Mountains and Cody Foothills. Light to moderate snow
possible in the northwestern mountains.

Sunday night and Monday...Strong ridge top winds Sunday night.
Strong northwest winds possible Monday morning in the northern
Bighorn Basin and northeast Johnson County.

Wednesday...Windy, warm and dry conditions may result in elevated
fire weather conditions across the central and south.


Spotter are urged to report snowfall amounts and wind gusts over
45 mph.


Special Weather Statement

Special Weather Statement
National Weather Service Riverton WY
241 AM MDT Fri Oct 20 2017

Upper Wind River Basin-Wind River Basin-Lander Foothills-
Including the cities of Dubois, Riverton, Shoshoni, and Lander
241 AM MDT Fri Oct 20 2017

...Strong winds with low relative humidity today...

Ahead of a Pacific low pressure trough, strong winds are expected
late this morning continuing through early this evening.
Southwest winds of 20 to 30 mph with gusts to 40 mph are expected.
Relative humidity is expected to drop to 20 to 25 percent in the

Travel with light weight and high profile trailers may become
difficult. Outdoor burning is highly discouraged!


U.S. Dept. of Commerce
NOAA National Weather Service
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Silver Spring, MD 20910
Page last modified: May 16, 2007
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