Special Weather Statement
Issued by NWS Riverton, WY

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WWUS85 KRIW 171920
SPSRIW

Special Weather Statement
National Weather Service Riverton WY
120 PM MDT Tue Apr 17 2018

WYZ004>007-180000-
North Big Horn Basin-Southwest Big Horn Basin-
Southeast Big Horn Basin-Owl Creek and Bridger Mountains-
Including the cities of Thermopolis and Worland
120 PM MDT Tue Apr 17 2018

...Cold and Snow continue Today...

Behind a cold front and a strong upper level disturbance
continuing across northern Wyoming, rain and snow showers continue
to spread to the east southeast while decreasing in intensity and
extent this afternoon. Snowfall could briefly be moderate to
locally heavy at times with accumulating mainly on grassy or
elevated areas. Winds will blow out of the north to northwest 20
to 25 mph with gusts 30 to 40 mph at times. Roads will be mainly
wet but could briefly become slushy and hazardous this during
bursts of heavier snowfall.

$$

WYZ008-009-180000-
Bighorn Mountains West-Bighorn Mountains Southeast-
120 PM MDT Tue Apr 17 2018

...Colder with Snow Today...

Snow will continue over the Bighorn Mountains through this
afternoon with the heaviest snowfall occurring through mid
afternoon. Snowfall totals are expected to range between 3 and 5
inches with isolated locations seeing 6 to 9 inches. Granite and
Powder River passes will be wet, slushy, and possibly hazardous
through mid afternoon.

$$

WYZ010-011-180000-
Northeast Johnson County-Southeast Johnson County-
Including the cities of Buffalo and Kaycee
120 PM MDT Tue Apr 17 2018

...Cold and Windy with Snow Today...

A strong cold front will continue to push across Wyoming today.
Colder temperatures will occur in wake of this front with
temperatures remaining in the 30s. Light to moderate rain or snow
showers will continue to impact Johnson County through late this
afternoon. Snow accumulations of 1 to 2 inches could occur
especially on grassy or elevated surfaces, but roads should remain
mainly wet except during brief bursts of heavy snowfall.
Additionally, a brisk north to northwest wind of 25 to 35 mph
with some gusts of 45 to 55 mph will occur. Lightweight and high
profile vehicles should be especially cautious if traveling across
Johnson County today.

$$

WYZ015>019-180000-
Wind River Mountains East-Upper Wind River Basin-Wind River Basin-
Lander Foothills-Green Mountains and Rattlesnake Range-
Including the cities of Dubois, Riverton, Shoshoni, Lander,
and Jeffrey City
120 PM MDT Tue Apr 17 2018

...Cold and Windy with Snow Today...

Behind a cold front and a strong upper level disturbance
continuing across northern Wyoming, snow and rain showers
continue to spread to the east southeast...decreasing in
intensity and extent later this afternoon. 1 to 3 inches of snow
could accumulate, mainly on grassy or elevated surfaces. Visibility
in the snow could quickly lower to under a half mile at
times. Winds will blow out of the north to northwest 20 to 25 mph
with gusts 30 to 40 mph at times. Roads are expected to remain
mainly wet, but could briefly become slushy, slick or hazardous
with any bursts of heavy snowfall. The heaviest snow is expected
to end by mid afternoon with light showers continuing periodically
across the Wind River Basin through the afternoon.

$$

WYZ014-025-026-180000-
Wind River Mountains West-Upper Green River Basin Foothills-
Upper Green River Basin-
Including the cities of Pinedale, La Barge, Big Piney, and Farson
120 PM MDT Tue Apr 17 2018

...Cold with increasing blustery northwest winds...

Northwest winds between 20 and 30 mph with gusts to 45 mph will
continue through the afternoon. This combined with temperatures
in the 30s will result in a blustery, chilly spring day.

$$

WYZ028>030-180000-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
Including the cities of Rock Springs, Green River, and Wamsutter
120 PM MDT Tue Apr 17 2018

...Cold with Wind and Snow Today...

Behind a cold front and a strong upper level disturbance
continuing across northern Wyoming, rain and snow showers continue
to spread to the east, decreasing in intensity and extent this
afternoon. A quick inch or so of snow could accumulate mainly on
grassy or elevated surfaces. Roads, including Interstate 80, will
be wet and could briefly become slushy or slick during bursts of
heavier snow. Visibility in the snow could quickly lower to under
a mile or two at times. West to northwest winds of 25 to 35 mph
with gusts of 45 to 55 mph are then expected, making it a
blustery, chilly spring day. Lightweight, high profile vehicles,
should be especially cautious if traveling across Sweetwater
County today.

$$

WYZ020-022-180000-
Natrona County Lower Elevations-Casper Mountain-
Including the city of Casper
120 PM MDT Tue Apr 17 2018

...Cold with some Wind and Snow Today...

A strong cold front will sweep across Wyoming today. This will
keep temperatures in the 30s. Some rain and or snow will arrive
this afternoon in wake of the strong cold front and continue into
early evening. There is also a slight chance for a thunderstorm or
two late this afternoon into the early evening. Anywhere from a
half inch to a couple of inches could occur on grassy or elevated
surfaces. North to northwest winds of 20 to 30 mph with gusts of
40 to 50 mph are expected at times, making it a blustery, chilly
spring day. Visibility in the snow could quickly lower to under
a mile at times. Roads are expected to be mainly wet, but could
become slushy at times under heavier snow showers.

$$

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