Special Weather Statement
Issued by NWS Riverton, WY

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Special Weather Statement
National Weather Service Riverton WY
157 AM MDT Fri Apr 21 2017

WYZ001-012-014-024-212130-
Yellowstone National Park-Teton and Gros Ventre Mountains-
Wind River Mountains West-Salt River and Wyoming Ranges-
Including the cities of Lake, Mammoth, and Old Faithful
157 AM MDT Fri Apr 21 2017

Scattered snow showers will continue today. Additional snowfall
amounts of an inch or two are expected although locally higher
amounts are possible where snowbands develop.

$$

WYZ016-212130-
Upper Wind River Basin-
Including the city of Dubois
157 AM MDT Fri Apr 21 2017

Scattered snow showers are expected today Friday. The heaviest
precipitation is expected through about sunrise. 1 to 3 inches of
snowfall could occur especially on elevated or grassy areas.

$$

WYZ017-018-212130-
Wind River Basin-Lander Foothills-
Including the cities of Riverton, Shoshoni, and Lander
157 AM MDT Fri Apr 21 2017

Areas of rain will develop this morning. The rain is then
expected to change to snow in most locations between 6 AM and 9 AM
mainly above 5000 feet. Scattered to numerous mainly snow showers
are expected to continue today. 1 to 3 inches of snow could
accumulate especially on grassy areas. Heavier amounts of snow
could occur where snow bands persist, but pinpointing these
locations are difficult at this time. Roads could become slick and
hazardous during heavier bursts of heavy snow, but roads are
currently expected to be mainly wet.

$$

WYZ019-212130-
Green Mountains and Rattlesnake Range-
Including the city of Jeffrey City
157 AM MDT Fri Apr 21 2017

Areas of rain will gradually will develop this morning. The rain
is then expected to change to snow during the morning hours.
Scattered to numerous snow showers are expected to continue today.
1 to 4 inches of snow could accumulate especially on grassy
areas. Heavier amounts of snow could occur where snow bands
persist, but pinpointing these locations are difficult at this
time. Highways especially over Beaver Rim will likely become slick
and hazardous during heavier bursts of heavy snow.

$$

WYZ005-212130-
Southwest Big Horn Basin-
Including the city of Thermopolis
157 AM MDT Fri Apr 21 2017

Areas of rain will develop this morning. The rain is then
expected to change to snow in many locations between 6 AM and 9
AM. Periods of snow are expected to continue today. 1 to 3 inches
of snow could accumulate especially on grassy areas. Heavier
amounts of snow could occur in the Hamilton Dome and south of
Thermopolis near the mouth of the Wind River Canyon. Roads
especially highway 120 northwest of Thermopolis will probably
become slick and hazardous at times, while highway 20, 789 north
of Thermopolis will likely just be wet.

$$

WYZ022-212130-
Casper Mountain-
157 AM MDT Fri Apr 21 2017

Scattered rain and snow showers will develop and change to all
snow this morning. Scattered snow showers will then continue
through today, and come to an end Friday evening. 2 to 5 inches
with isolated higher amounts are expected over Casper and Muddy
mountains. Roads over Casper Mountain could become slick and
hazardous at times.

$$



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