Winter Weather Warnings / Watches / Advisories
Issued by NWS Riverton, WY

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WWUS45 KRIW 282202
WSWRIW

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
402 PM MDT Fri Apr 28 2017

...A Spring Snowstorm Continues mainly East of the Continental
Divide through this Evening...

.A cold spring storm will impact mainly the central and eastern
parts of the Cowboy State through this evening with significant
snowfall in some locations. The snow is gradually expected to
taper off from north to south this afternoon into tonight.

WYZ009-290600-
/O.CON.KRIW.WS.W.0015.000000T0000Z-170429T0600Z/
Bighorn Mountains Southeast-
402 PM MDT Fri Apr 28 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* TIMING...Periods of snow will occur through this evening.
  Expect moderate to heavy snow at times.

* TOTAL SNOW ACCUMULATION...Some areas have received as much as 22
  inches of snowfall so far. Another 1 to 2 inches of snow is
  likely.

* MAIN IMPACT...Slushy to snow packed roads will make travel
  difficult on Powder River and Granite Passes. As of 12 PM,
  Powder River Pass was closed.

* OTHER IMPACTS...Heavy snow will reduce visibility below a
  quarter mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter storm warning means significant amounts of snow, and or
blowing snow are expected or occurring. This could make travel
very hazardous or impossible. If you must travel keep some food,
water, and an extra flashlight in your vehicle in case of an
emergency. Check the latest road conditions at wyoroad.info or by
dialing 5 1 1.

&&

$$

WYZ010-011-290600-
/O.CON.KRIW.WS.W.0015.000000T0000Z-170429T0600Z/
Northeast Johnson County-Southeast Johnson County-
Including the cities of Buffalo and Kaycee
402 PM MDT Fri Apr 28 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* TIMING...Periods of snow through this evening. Snow will be
  moderate to heavy at times.

* TOTAL SNOW ACCUMULATION...Some areas southwest of Buffalo have
  already received 10 inches of snowfall. Expect a total of 6 to
  10 inches in most areas. Locally higher amounts in the
  foothills of the Bighorn mountains.

* MAIN IMPACT...Roads will be slushy to snow covered especially
  this morning. As of 12 PM, Powder River Pass was closed.

* OTHER IMPACTS...Heavy snow will reduce visibility below a
  quarter mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter storm warning means significant amounts of snow, and or
blowing snow are expected or occurring. This could make travel
very hazardous or impossible. If you must travel keep some food,
water, and an extra flashlight in your vehicle in case of an
emergency. Check the latest road conditions at wyoroad.info or by
dialing 5 1 1.

&&

$$

WYZ020-290600-
/O.CON.KRIW.WS.W.0015.000000T0000Z-170429T0600Z/
Natrona County Lower Elevations-
Including the city of Casper
402 PM MDT Fri Apr 28 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* TIMING...Periods of snow will continue into this evening
  before tapering off.

* TOTAL SNOW ACCUMULATION...4 inches of snowfall have already
  occurred southwest of Casper. 5 to 10 inches, with the highest
  amounts in northern and western Natrona County with lesser
  amounts toward Casper.

* MAIN IMPACT...Roads will vary from wet to snow covered with the
  worst conditions north and west of Casper this morning. Any
  roads that start out wet will likely freeze over this evening.

* OTHER IMPACTS...Visibility below a half mile at times in
  heavier snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter storm warning means significant amounts of snow, and or
blowing snow are expected or occurring. This could make travel
very hazardous or impossible. If you must travel keep some food,
water, and an extra flashlight in your vehicle in case of an
emergency. Check the latest road conditions at wyoroad.info or by
dialing 5 1 1.

&&

$$

WYZ019-290600-
/O.CON.KRIW.WS.W.0015.000000T0000Z-170429T0600Z/
Green Mountains and Rattlesnake Range-
Including the city of Jeffrey City
402 PM MDT Fri Apr 28 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* TIMING...Periods of snow through this evening. Moderate to
  heavy snow will occur.

* TOTAL SNOW ACCUMULATION...10 inches of snowfall have already
  occurred in Bairoil. Expect a snow total of 6 to 12 inches in
  most areas.

* MAIN IMPACT...Roads across southeast Fremont County will be
  slushy to snow covered especially this morning. As of 12 PM,
  highway 287 and 135 in southeast Fremont County was still
  closed.

* OTHER IMPACTS...Heavy snow will reduce visibility below a
  quarter mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter storm warning means significant amounts of snow, and or
blowing snow are expected or occurring. This could make travel
very hazardous or impossible. If you must travel keep some food,
water, and an extra flashlight in your vehicle in case of an
emergency. Check the latest road conditions at wyoroad.info or by
dialing 5 1 1.

&&

$$

WYZ015-290600-
/O.CON.KRIW.WS.W.0015.000000T0000Z-170429T0600Z/
Wind River Mountains East-
402 PM MDT Fri Apr 28 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* TIMING...Periods of snow through this evening. Expect moderate
  to heavy snow at times.

* TOTAL SNOW ACCUMULATION...Accumulations so far include 22 inches
  near Frye Lake. An estimated 21 inches has fallen near South
  Pass. Another 2 to 4 inches of snowfall is likely.

* MAIN IMPACT...Slushy to snow packed roads will make travel
  difficult, including over South Pass.

* OTHER IMPACTS...Heavy snow will reduce visibility below a
  quarter mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter storm warning means significant amounts of snow, and or
blowing snow are expected or occurring. This could make travel
very hazardous or impossible. If you must travel keep some food,
water, and an extra flashlight in your vehicle in case of an
emergency. Check the latest road conditions at wyoroad.info or by
dialing 5 1 1.

&&

$$

WYZ022-290600-
/O.CON.KRIW.WW.Y.0026.000000T0000Z-170429T0600Z/
Casper Mountain-
402 PM MDT Fri Apr 28 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* TIMING...Occasional snow through this evening. Snow will be
  moderate to heavy at times.

* TOTAL SNOW ACCUMULATION...8 to 12 inches with locally higher
  amounts. 10 inches has accumulated so far over portions of the
  mountain.

* MAIN IMPACT...Slushy to snow packed roads will make travel
  difficult.

* OTHER IMPACTS...Heavy snow will reduce visibility below a
  quarter mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter weather advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
and slick roads with limited visibilities. Slow down, and allow
extra time to reach your destination. Check the latest road
conditions at wyoroad.info or by dialing 5 1 1.

&&

$$

WYZ017-018-290600-
/O.CON.KRIW.WW.Y.0026.000000T0000Z-170429T0600Z/
Wind River Basin-Lander Foothills-
Including the cities of Riverton, Shoshoni, and Lander
402 PM MDT Fri Apr 28 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* TIMING...Periods of snow will continue into this evening,
  moderate to heavy at times.

* TOTAL SNOW ACCUMULATION...Accumulations so far range from around
  an inch in Riverton to 6 inches over the higher terrain above
  5500 feet. Total snowfall expected will range from 3 to 6
  inches. However, locally heavier amounts in more persistent snow
  bands are possible over the higher terrain.

* MAIN IMPACT...Roads may become slushy to snow covered
  especially where heavier snow persists.

* OTHER IMPACTS...Additional rock or mudslides could occur in
  the Wind River Canyon. As of 530 AM, highway 287, 789 in
  southeast Fremont County, as well as the Wind River Canyon was
  closed.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter weather advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
and slick roads with limited visibilities. Slow down, and allow
extra time to reach your destination. Check the latest road
conditions at wyoroad.info or by dialing 5 1 1.

&&

$$

WYZ008-290600-
/O.CON.KRIW.WW.Y.0026.000000T0000Z-170429T0600Z/
Bighorn Mountains West-
402 PM MDT Fri Apr 28 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* TIMING...Periods of snow will occur through this evening.

* Snow Accumulation...3 to 9 inches have accumulated so far. 6
  to 12 inches expected.

* MAIN IMPACT...Slushy to snow packed roads will make travel
  difficult on Powder River and Granite Mountain Passes. As of
  530 AM, Powder River Pass was closed.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter weather advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
and slick roads with limited visibilities. Slow down, and allow
extra time to reach your destination. Check the latest road
conditions at wyoroad.info or by dialing 5 1 1.

&&

$$

WYZ030-290600-
/O.CON.KRIW.WW.Y.0026.000000T0000Z-170429T0600Z/
East Sweetwater County-
Including the city of Wamsutter
402 PM MDT Fri Apr 28 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT...

* TIMING...Periods of snow through this evening.

* TOTAL SNOW...2 to 4 inches with isolated higher amounts
  between Wamsutter and the Carbon County line.

* MAIN IMPACT...Highways may become slick and snow covered,
  including Interstate 80.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter weather advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
and slick roads with limited visibilities. Slow down, and allow
extra time to reach your destination. Check the latest road
conditions at wyoroad.info or by dialing 5 1 1.

&&

$$

TEAM RIVERTON


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