Hazardous Weather Outlook
Issued by NWS Riverton, WY

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FLUS45 KRIW 212016

Hazardous Weather Outlook
National Weather Service Riverton WY
116 PM MST Tue Feb 21 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-
116 PM MST Tue Feb 21 2017

...Flood Warning remains in effect for the Big Horn River roughly
between Manderson and Greybull through at least Wednesday

...Winter Storm Warning for the Western Mountains through Tonight...

...Multiple High Wind Warnings for areas east of the Divide
through this evening...

...Winter Storm Watch for much of Central Wyoming late Wednesday
Night through Friday morning...

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and Tonight

Ice jam flooding continues across portions of the Big Horn Basin
especially along the Big Horn River in Big Horn County.

Significant snow and blowing snow will continue over the western
mountains through tonight. Please see the winter storm warning
for more details. Rain, and or snow in the western valleys will
change to all snow as a cold front sweeps across western Wyoming
late this afternoon into the early evening.

Strong to high wind will continue across portions of central
Wyoming east of the Continental Divide through this evening.
These winds will also develop this morning across the eastern
slopes of the Bighorns and Johnson County. Please see the high
wind warnings for more details.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Late Wednesday Night Through Friday...Significant snow possible
in Central Wyoming along with breezy to windy conditions causing
blowing and drifting snow. The heaviest snow is expected late
Wednesday Night through at least Thursday afternoon with snow
continuing into Friday. The heaviest snow will likely be across
Natrona and Fremont Counties and possibly Eastern Sweetwater

Sunday Night through Monday...Significant snowfall possible in
Western Wyoming with some snow possibly developing east of the
divide on Monday.


Spotters are encouraged to report any river or creek flooding, as
well as snowfall amounts. Thank you!


Team Riverton

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