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

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WWUS45 KRIW 220952
WSWRIW

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
252 AM MST Wed Feb 22 2017

...Heavy snow may impact Central and Southern Wyoming Late
Wednesday night through mid day Friday...

.A strong winter storm will likely deliver a heavy dose of
snowfall to much of Central and Southern Wyoming from late
Wednesday night through midday Friday. The heaviest snowfall
should occur between the predawn hours Thursday and early Thursday
afternoon. In addition, strong north to northeast winds may
result in considerable blowing and drifting snow from Johnson to
eastern Sweetwater Counties, including Natrona and southeast
Fremont Counties.

WYZ028-029-230000-
/O.EXA.KRIW.WS.A.0012.170223T0600Z-170224T1800Z/
Rock Springs and Green River-Flaming Gorge-
Including the cities of Rock Springs and Green River
252 AM MST Wed Feb 22 2017

...WINTER STORM WATCH IN EFFECT FROM THIS EVENING THROUGH FRIDAY
MORNING...

The National Weather Service in Riverton has issued a Winter
Storm Watch, which is in effect from this evening through Friday
morning.

* TIMING...Some light snow is expected during the day Wednesday,
  before increasing in coverage and intensity by early evening.
  The heaviest snowfall should occur between the predawn hours
  Thursday and early Thursday afternoon. Snow will continue
  Thursday night, before subsiding by midday Friday.

* SNOWFALL ACCUMULATION...Ranging from 5 to 8 inches over western
  Sweetwater County and up to 12 inches over eastern Sweetwater
  County.

* MAIN IMPACT...Roads may become slick and snow covered.
  Considerable blowing and drifting snow could make travel
  difficult, especially from Rock Springs eastward. The visibility
  may become significantly reduced in blowing snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter storm watch means there is a potential for significant
snow and/or blowing snow that may impact travel. Continue to
monitor the latest forecasts.

&&

$$

WYZ009-010-230000-
/O.EXA.KRIW.WS.A.0012.170223T0600Z-170224T1800Z/
Bighorn Mountains Southeast-Northeast Johnson County-
Including the city of Buffalo
252 AM MST Wed Feb 22 2017

...WINTER STORM WATCH IN EFFECT FROM THIS EVENING THROUGH FRIDAY
MORNING...

The National Weather Service in Riverton has issued a Winter
Storm Watch, which is in effect from this evening through Friday
morning.

* TIMING...Snow will develop Wednesday night, with periods of snow
  expected through Friday morning. The heaviest snowfall should
  occur between the predawn hours Thursday and early Thursday
  afternoon.

* SNOWFALL ACCUMULATION...8 to 12 inches near Powder River Pass
  and over the southern end of the mountains. 4 to 6 inches in the
  lower elevations.

* MAIN IMPACT...Roads may become slick and snow covered. Gusty
  north winds could cause blowing and drifting snow Thursday. The
  visibility may become significantly reduced in blowing snow.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter storm watch means there is a potential for significant
snow and/or blowing snow that may impact travel. Continue to
monitor the latest forecasts.

&&

$$

WYZ020-022-230000-
/O.CON.KRIW.WS.A.0012.170223T0600Z-170224T1800Z/
Natrona County Lower Elevations-Casper Mountain-
Including the city of Casper
252 AM MST Wed Feb 22 2017

...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
FRIDAY MORNING...

* TIMING...Snow will develop Wednesday night, and may become heavy
  at times from the predawn hours Thursday through early Thursday
  afternoon. Snow will continue through Thursday night, before
  subsiding by mid day Friday.

* SNOWFALL ACCUMULATION...Ranging from up to 2 feet on Casper
  Mountain, with 12 to 16 inches across Natrona County.

* MAIN IMPACT...Roads will become slick and snow covered. Gusty
  northerly winds will develop early Thursday morning, causing
  blowing and drifting snow. This could significantly reduce
  visibility and make travel difficult to impossible.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter storm watch means there is a potential for significant
snow and/or blowing snow that may impact travel. Continue to
monitor the latest forecasts.

&&

$$

WYZ019-230000-
/O.CON.KRIW.WS.A.0012.170223T0600Z-170224T1800Z/
Green Mountains and Rattlesnake Range-
Including the city of Jeffrey City
252 AM MST Wed Feb 22 2017

...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
FRIDAY MORNING...

* TIMING...Snow will develop Wednesday night, and may become heavy
  at times from the predawn hours Thursday through early Thursday
  afternoon. Snow will continue through Thursday night, before
  subsiding by mid day Friday.

* SNOWFALL ACCUMULATION...10 to 16 inches.

* MAIN IMPACT...Roads will become slick and snow covered. Gusty
  northeasterly winds will develop early Thursday morning, causing
  blowing and drifting snow. This could significantly reduce
  visibility and make travel difficult to impossible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter storm watch means there is a potential for significant
snow and/or blowing snow that may impact travel. Continue to
monitor the latest forecasts.

&&

$$

WYZ030-230000-
/O.CON.KRIW.WS.A.0012.170223T0600Z-170224T1800Z/
East Sweetwater County-
Including the city of Wamsutter
252 AM MST Wed Feb 22 2017

...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
FRIDAY MORNING...

* TIMING...Periods of light snow is expected through the day
  Wednesday, before increasing in coverage and intensity by early
  evening. The heaviest snowfall should occur between the predawn
  hours Thursday and early Thursday afternoon. Snow will continue
  Thursday night, before subsiding by midday Friday.

* SNOWFALL ACCUMULATION...Ranging from 5 to 8 inches in Central
  Sweetwater County to up to 15 inches in Eastern Sweetwater
  County.

* MAIN IMPACT...Roads will become slick and snow covered. Gusty
  northerly winds will develop Thursday morning, causing blowing
  and drifting snow. This could significantly reduce visibility
  and make travel difficult to impossible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter storm watch means there is a potential for significant
snow and/or blowing snow that may impact travel. Continue to
monitor the latest forecasts.

&&

$$

WYZ014-015-230000-
/O.CON.KRIW.WS.A.0012.170223T0600Z-170224T1800Z/
Wind River Mountains West-Wind River Mountains East-
252 AM MST Wed Feb 22 2017

...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
FRIDAY MORNING...

* Timing...Snow will develop Wednesday night, and may become heavy
  at times from the predawn hours Thursday through early Thursday
  afternoon. Snow will continue through Thursday night, before
  subsiding by mid day Friday.

* Snowfall Accumulation...8 to 12 inches are expected, mainly on
  the southern end of the mountains.

* Main Impact...Travel will become difficult to impossible across
  South Pass due to the snow producing slick, snow-packed roads,
  and whiteout conditions due to strong northeast winds developing
  Thursday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter storm watch means there is a potential for significant
snow and/or blowing snow that may impact travel. Continue to
monitor the latest forecasts.

&&

$$

WYZ017-018-230000-
/O.CON.KRIW.WS.A.0012.170223T0600Z-170224T1800Z/
Wind River Basin-Lander Foothills-
Including the cities of Riverton, Shoshoni, and Lander
252 AM MST Wed Feb 22 2017

...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
FRIDAY MORNING...

* TIMING...Snow will develop Wednesday night, and may become heavy
  at times from the predawn hours Thursday through early Thursday
  afternoon. Snow will continue through Thursday night, before
  subsiding by mid day Friday.

* SNOWFALL ACCUMULATION...10 to 13 inches in Eastern Fremont
  County, 6 to 10 inches in the Riverton/Lander area, and 3 to 5
  inches around Kinnear and Pavillion.

* MAIN IMPACT...Roads may become slick and snow covered. Blowing
  and drifting snow may significantly reduce visibility and
  could make travel rather difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter storm watch means there is a potential for significant
snow and/or blowing snow that may impact travel. Continue to
monitor the latest forecasts.

&&

$$

WYZ007-230000-
/O.CON.KRIW.WS.A.0012.170223T0600Z-170224T1800Z/
Owl Creek and Bridger Mountains-
252 AM MST Wed Feb 22 2017

...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
FRIDAY MORNING...

* TIMING...Snow will develop Wednesday night, and may become heavy
  at times from the predawn hours Thursday through early Thursday
  afternoon. Snow will continue through Thursday night, before
  subsiding by mid day Friday.

* SNOWFALL ACCUMULATION...6 to 12 inches, with the higher amounts
  expected over the Bridger Mountains.

* MAIN IMPACT...Roads may become slick and snow covered. Blowing
  and drifting snow could make travel rather difficult,
  including travel through the Wind River Canyon. Blowing snow
  may significantly reduce visibility, especially at the
  southern end of the Wind River Canyon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter storm watch means there is a potential for significant
snow and/or blowing snow that may impact travel. Continue to
monitor the latest forecasts.

&&

$$

WYZ011-230000-
/O.CON.KRIW.WS.A.0012.170223T0600Z-170224T1800Z/
Southeast Johnson County-
Including the city of Kaycee
252 AM MST Wed Feb 22 2017

...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
FRIDAY MORNING...

* TIMING...Snow will develop Wednesday night, and may become heavy
  at times from the predawn hours Thursday through early Thursday
  afternoon. Snow will continue through Thursday night, before
  subsiding by mid day Friday.

* SNOWFALL ACCUMULATION...6 to 10 inches with the heaviest
  snowfall expected near the Natrona County line.

* MAIN IMPACT...Roads will be slick and snow covered. Gusty north
  winds could cause blowing and drifting snow Thursday. The
  visibility may become significantly reduced in blowing snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter storm watch means there is a potential for significant
snow and/or blowing snow that may impact travel. Continue to
monitor the latest forecasts.

&&

$$


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