Special Weather Statement
Issued by NWS Cheyenne, WY

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WWUS85 KCYS 212011
SPSCYS

Special Weather Statement
National Weather Service Cheyenne WY
211 PM MDT Tue Mar 21 2017

NEZ002-003-019>021-054-055-095-096-WYZ101>119-221200-
Dawes-Box Butte-Scotts Bluff-Banner-Morrill-Kimball-Cheyenne-
North Sioux-South Sioux-Converse County Lower Elevations-
Niobrara County-North Laramie Range-
Ferris/Seminoe/Shirley Mountains-Shirley Basin-
Central Laramie Range and Southwest Platte County-
East Platte County-Goshen County-Central Carbon County-
North Snowy Range Foothills-Southwest Carbon County-
Sierra Madre Range-Upper North Platte River Basin-Snowy Range-
Laramie Valley-South Laramie Range-South Laramie Range Foothills-
Central Laramie County-East Laramie County-
Including the cities of Chadron, Chadron St Park, Alliance,
Scottsbluff, Gering, Harrisburg, Angora, Bridgeport, Bayard,
Redington, Kimball, Brownson, Sidney, Harrison, Agate, Bill,
Douglas, Deer Creek, Glenrock, Lusk, Redbird, Garrett,
Seminoe Dam, Medicine Bow, Shirley Basin, Bordeaux, Wheatland,
Guernsey, Torrington, Rawlins, Arlington, Elk Mountain, Baggs,
Saratoga, Encampment, Centennial, Albany, Bosler, Laramie,
Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, Horse Creek,
Cheyenne, and Pine Bluffs
211 PM MDT Tue Mar 21 2017

...Significant storm system to affect southeast Wyoming and the
western Nebraska Panhandle Thursday night and Friday...

A strong low pressure system will develop over eastern Colorado
late Thursday and track south of the area through Friday. Ahead of
this system, rain will develop over areas west of the Laramie
Range on Thursday and spread eastward through Thursday night.

At the same time, colder air will begin to filter into the area
from the north which will begin changing the rain to snow over the
mountains during the day on Thursday. The rain will begin changing
to snow at lower elevations over southeast Wyoming Thursday night
and possibly into portions of the western Nebraska Panhandle on
Friday morning.

There is the potential for a significant winter storm Thursday
night and Friday especially south of a line from Rawlins to
Wheatland to Scottsbluff. At this time there is still much
uncertainty as to the exact timing and track of the system which
will greatly affect potential snowfall amounts. Disruptions to
travel especially along Interstate 80 and Interstate 25 in
Southeast Wyoming are possible. Those living in or planning travel
through southeast Wyoming and the western Nebraska Panhandle
Thursday or Friday should monitor the latest forecasts on this
developing weather situation.

$$



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