Hazardous Weather Outlook
Issued by NWS Riverton, WY

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FLUS45 KRIW 192135
HWORIW

Hazardous Weather Outlook
National Weather Service Riverton WY
335 PM MDT Wed Apr 19 2017

WYZ001>020-022>030-201100-
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-
335 PM MDT Wed Apr 19 2017

This Hazardous Weather Outlook is for Western and Central
Wyoming.

.DAY ONE...This Afternoon and Tonight...

isolated thunderstorms will remain a possibility for most of the
outlook area until the early evening hours. Wind gusts in the 30
to 35 mph range, occasional cloud to ground lightning and locally
heavy rainfall will be the main hazards with any of the
thunderstorms that develop.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday...

A slight chance of thunderstorms will return to the region early
Friday morning along a southward moving cold front. As colder
air filters into the region from the northwest by Thursday morning,
mountain snow and valley rain will move through the far western
areas, and then eastward into the mountain areas in the
Absaroka, Wind River and Big Horn mountains by Thursday evening.

Heavy snow will be possible in the higher elevations mainly above
7500 feet in the Absaroka, Wind River and Big Horn mountains from
Thursday evening until early Saturday morning. A Winter Storm
Watch is in effect for these mountain areas from 6 pm Thursday
evening until 6 am Saturday morning for heavy snow potential.
Please see the latest Winter Storm Watch (WSW) product for more
details.

Scattered to numerous storms are also expected from Friday
through early Sunday morning, as the front will remain stalled
across the region awaiting the arrival of a stronger system late
Saturday afternoon. The greatest coverage of thunderstorms is
expected from late Saturday afternoon through early Sunday
morning, when a few strong to severe storms will be possible.

.SPOTTER INFORMATION STATEMENT...

Spotters are urged to report any hail, high wind or snowfall
reports during the period.

$$


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