Special Weather Statement
Issued by NWS Riverton, WY

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WWUS85 KRIW 301904
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Special Weather Statement
National Weather Service Riverton WY
104 PM MDT Thu Mar 30 2017

WYZ020-022-311015-
Natrona County Lower Elevations-Casper Mountain-
Including the city of Casper
104 PM MDT Thu Mar 30 2017

A large storm system will impact the area from tonight through
Friday night. The most challenging aspect of this storm are the
temperature and snow levels. The Casper area looks like it will
stay rain during the day Friday with a changeover to snow late
Friday afternoon or early evening before ending by morning. Casper
Mountain will likely see mostly snow with 4 to 6 inches possible.
Another area of potentially heavy snow Friday into Friday evening
will be in western Natrona County including Hiland, Waltman and
Natrona where 4 to 6 inches could fall. The Casper area may see 1
to 3 inches mostly late Friday afternoon and evening. Strong
northeast wind gusts of 30 to 40 mph are possible in open or
exposed areas.

Stay tuned for frequent updates on this developing storm system.

$$

WYZ010-011-311015-
Northeast Johnson County-Southeast Johnson County-
Including the cities of Buffalo and Kaycee
104 PM MDT Thu Mar 30 2017

A cold rain is expected to develop across much of the area tonight
and continue through Friday. Some of the higher elevations near
the foothills and above 5000 to 5500 feet may change over to snow
on Friday. All areas will likely see a period of snow Friday
evening. Snowfall amounts are still uncertain but early indications
point to 1 to 4 inches with locally higher in the southern part
of the county near the mountains. The rain and snow will be driven
by north winds of 20 to 35 mph at times. Liquid precipitation
totals of one half to three quarters of an inch are expected.

$$

WYZ005-311015-
Southwest Big Horn Basin-
Including the city of Thermopolis
104 PM MDT Thu Mar 30 2017

Rain is expected to develop across the area tonight and continue
into Friday evening. Snow is expected above 6000 feet or so with 2
to 5 inches possible above 6000 feet. Thermopolis will likely see
mostly rain through the day Friday with a brief period of snow
possible Friday evening with only light accumulations.

$$

WYZ003-311015-
Cody Foothills-
Including the cities of Cody and Meeteetse
104 PM MDT Thu Mar 30 2017

A mixture of cold rain or snow is expected to develop across the
area tonight and continue into Friday evening before ending late.
The higher spots above 5500 to 6000 feet could see 3 to 6 inches
with much lighter amounts below 5000 to 5500 feet.

$$

WYZ028>030-311015-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
Including the cities of Rock Springs, Green River, and Wamsutter
104 PM MDT Thu Mar 30 2017

Rain is expected to develop across the area tonight with a mixture
of rain and snow on Friday depending on the elevation. Snow
levels will vary from 6500 to 7000 feet generally on Friday. The
rain and snow will be driven by very strong northeast wind on
Friday with speeds of 30 to 40 mph with gusts 50 to 60 mph. Some
of the higher elevations along Interstate 80 could have brief
periods of blizzards conditions when the snow and wind combine.
Stay tuned for future updates on this challenging forecast.

$$

Skrbac



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