Winter Weather Warnings / Watches / Advisories
Issued by NWS Missoula, MT

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WWUS45 KMSO 212102
WSWMSO

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
302 PM MDT Thu Sep 21 2017

MTZ006-007-222115-
/O.CON.KMSO.WW.Y.0027.170922T0300Z-170923T0600Z/
302 PM MDT Thu Sep 21 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM THIS
EVENING TO MIDNIGHT MDT FRIDAY NIGHT ABOVE 5000 FEET...

* Impacts/Timing: Snow will develop this evening and continue
  into Friday evening, with accumulations possible down to 5000
  feet. Brief periods of moderate to heavy snow will be possible
  early Friday morning. Expect roads to become slippery with
  changeable conditions over short distances. In addition, areas
  of poor visibility are expected due to the combination of
  falling snow and breezy winds.

* Snow accumulations: 1 to 4 inches 5000 to 6000 feet. 5 to 10
  inches snow are expected in the high elevations above 6000 feet,
  including over MacDonald and Homestake Passes.

* Winds: Gusts to 30 mph will cause areas of low visibility,
  especially on high mountain passes such as Homestake and
  MacDonald.

* Locations impacted include: Highway 93 Sula to Lost Trail
  Pass, Lolo Pass, Butte, Georgetown Lake, Homestake Pass, and
  MacDonald Pass

$$

IDZ009-010-222115-
/O.CON.KMSO.WW.Y.0027.170922T0000Z-170923T0600Z/
302 PM MDT Thu Sep 21 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO MIDNIGHT MDT FRIDAY NIGHT ABOVE 5500 FEET...

* Impacts/Timing: Snow will develop this evening and continue
  into Friday evening, with accumulations possible down to 5500
  feet. Expect roads to become slippery over higher elevation
  passes and backcountry roads. In addition, areas of poor
  visibility are expected due to the combination of falling snow
  and breezy winds.

* Snow accumulations: 1 to 4 inches 5500 to 7000 feet. 5 to 10
  inches are expected in the high elevations above 7000 feet,
  including over Gilmore Summit, and Lost Trail, Bannock and Lemhi
  Passes.

* Winds: Gusts as high as 30 mph will cause areas of low
  visibility, especially on high mountain passes such as Gilmore
  Summit.

* Locations impacted include: Bannock Pass, Highway 28 Tendoy to
  Lone Pine, Highway 93 Lost Trail Pass to Gibbonsville, and
  Lemhi Pass

$$



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