Special Weather Statement
Issued by NWS Riverton, WY

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WWUS85 KRIW 250352
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Special Weather Statement
National Weather Service Riverton WY
952 PM MDT Mon Apr 24 2017

WYZ011-251200-
Southeast Johnson County-
Including the city of Kaycee
952 PM MDT Mon Apr 24 2017

...Burst of Spring Snow and Gusty North Wind Expected Tuesday
morning across Southern Johnson County...

A low pressure system will intensify near the southeast corner of
Johnson County early Tuesday morning. Widespread rain showers will
occur overnight, with this system pulling down cold air resulting
in rain becoming mixed with and changing over to snow around 6 am
Tuesday. The heaviest snow is expected through noon
Tuesday...with one to 4 inches of total snowfall accumulation by
Tuesday afternoon. North wind will increase to 20 to 30 mph with
gusts near 40 mph Tuesday morning. Highways will become slick,
slushy or snow covered, including Interstate 25 during the morning
commute time. Visibility could be reduced to under one half mile
at times in snow and blowing snow.

$$

WYZ013-023-251200-
Jackson Hole-Star Valley-
Including the cities of Jackson, Afton, Alpine,
Star Valley Ranch, and Thayne
952 PM MDT Mon Apr 24 2017

...Burst of Snow Expected Late This Evening Through Early Tuesday
Morning Across the Jackson and Star Valleys...

An upper level disturbance will bring a line of moderate to heavy
snow showers across the area between 11 pm and 1 am tonight. A
quick one to three inches of snowfall will be possible. Occasional
snow showers will continue through Tuesday morning before tapering
off from the north Tuesday afternoon. Highways will become slick,
slushy or snow covered. Visibility could be reduced to under one
half mile at times in snow.

$$

WYZ017-018-251200-
Wind River Basin-Lander Foothills-
Including the cities of Riverton, Shoshoni, and Lander
952 PM MDT Mon Apr 24 2017

...Burst of Snow Expected Tuesday Morning Across Portions of the
Wind River Basin and Lander Foothills...

A low pressure system will continue to intensify over east central
Wyoming tonight. Bands of heavier rain showers along and east of
Riverton late this evening will continue to drift east into
Natrona County early Tuesday morning. A colder northerly flow,
north wind 10 to 20 mph and gusty, will push across the area
around 6 am Tuesday, accompanied by numerous snow showers.
Generally expect from a trace to 2 inches of total snowfall
accumulation by noon Tuesday. Highways 789 or 287 will become
slick or slushy at times. Visibility could be reduced to under one
mile at times in snow.

$$

WYZ019-020-251200-
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-
Including the cities of Jeffrey City and Casper
952 PM MDT Mon Apr 24 2017

...Burst of Spring Snow Expected Late Tonight Through Tuesday
Morning Across Portions of Natrona County in addition to Green and
Rattlesnake Mountains...

A low pressure system will continue to intensify over east central
Wyoming tonight. Bands of heavier rain showers will occur mainly
across northern and western Natrona County overnight. A colder
northerly flow, north wind 15 to 20 mph and gusty, will push
across the area between 4 am and 6 am Tuesday, accompanied by
numerous snow showers. The heaviest snow is expected through noon Tuesday
above 5500 feet...with generally one to 3 inches of total
snowfall accumulation by early afternoon Tuesday. Highways 789 or
287 will become slick, slushy or snow covered at
times...especially over Beaver Rim. Visibility could be reduced
to under one half mile at times in snow.

$$

WYZ003-005-251200-
Cody Foothills-Southwest Big Horn Basin-
Including the cities of Cody, Meeteetse, and Thermopolis
952 PM MDT Mon Apr 24 2017

...Burst of Spring Snow Expected Tonight Through Tuesday Morning
Across Portions of the Cody Foothills...

Light rain will become mixed with snow around between midnight and
3 am ...then down to near Basin Floor level around 6 am. The snow
or rain snow mix will continue at times through Tuesday morning.
The heaviest snow is expected through Tuesday morning above 5500
feet...with generally a trace to 3 inches of total snowfall
accumulation by noon Tuesday. North wind will increase to 15 to 20
mph with gusts near 30 mph early Tuesday morning. Highways of the
area may become slick or slushy at times. Visibility could be
reduced to under one mile at times in snow.

$$

WYZ022-251200-
Casper Mountain-
952 PM MDT Mon Apr 24 2017

...Burst of Spring Snow Expected Tonight Through Tuesday Morning
Over Casper Mountain...

A low pressure system will continue to intensify over east central
Wyoming tonight. A colder northerly flow, north wind 15 to 20 mph
and gusty, will push across the area between around 6 am Tuesday,
accompanied by increasing snowfall. The heaviest snow is expected
Tuesday morning above 5500 feet...with generally 3 to 6 inches of
total snowfall accumulation by Tuesday evening. Roads of the area
may become slick or slushy at times. Visibility could be reduced
to under one half mile at times in snow.

$$



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