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Montana, Madison

Winter Storm Warning

Statement as of 7:46 PM MST on February 20, 2017

Expires 10:00 AM EST on February 21, 2017


... Winter Storm Warning in effect until 8 am MST Tuesday...

The National Weather Service in Great Falls has issued a Winter
Storm Warning for heavy snow and blowing snow... which is in
effect until 8 am MST Tuesday. The Winter Weather Advisory is no
longer in effect.

* Locations... Monida Pass, Raynolds Pass, Targhee Pass, and West
Yellowstone.

* Timing... snow will become heavy at times along the Idaho border
tonight and gradually diminish in intensity late Tuesday
morning. Strong winds will produce significantly reduced
visibilities in blowing and drifting snow over mountain passes
and exposed areas tonight with winds gradually diminishing
Tuesday morning.

* Snow accumulations... an additional 4 to 8 inches of snow above
6000 feet.

* Winds... southwest 20 to 30 mph with gusts up to 50 mph through
mountain passes.

* Snow level... 6500 feet lowering to 5500 feet.

* Impacts... travel over mountain passes along the Idaho border
will be extremely difficult due to reduced visibility in blowing
and drifting snow as well as accumulation of snow on roadways.
As of Monday evening Interstate 15 was closed on both sides of
Monida Pass from DuBois Idaho to Dillon Montana.

Precautionary/preparedness actions...

A Winter Storm Warning for heavy snow means severe winter weather
conditions are expected or occurring. Significant amounts of
snow are forecast that will make travel dangerous. Only travel in
an emergency. If you must travel... keep an extra flashlight...
food... and water in your vehicle in case of an emergency.

For specific Road and travel conditions in Montana... dial 5 1 1 .






Record Report

Statement as of 6:18 PM MST on February 20, 2017

Expires 2:10 AM EST on February 21, 2017



... Record warm maximum temperatures for Feb 20 in north central
   and southwest Montana...

Location new record old record year set records began
Bannack state 41 38 2009 2007
Utica 11sw 47 39 2015 2008


618 PM MST Mon Feb 20 2017


... Record warm maximum temperatures for Feb 20 in north central
   and southwest Montana...

Location new record old record year set records began
Bannack state 41 38 2009 2007
Utica 11sw 47 39 2015 2008

Public Information Statement

Statement as of 5:59 PM MST on February 20, 2017

Expires 7:59 AM EST on February 21, 2017


... Peak wind reports (40+ mph) over the past 12 hours...

Location speed time/date lat/Lon/elev (ft.)

... Montana...

... Beaverhead County...
Monida Pass MDT 57 mph 0425 PM 02/20 44.56n/112.31w/6824
Antelope RAWS 51 mph 0959 am 02/20 44.69n/112.54w/6795
Harkness 48 mph 1205 PM 02/20 44.47n/112.95w/8400
Dillon Airport 44 mph 0408 PM 02/20 45.26n/112.55w/5200
Brenner RAWS 40 mph 1247 PM 02/20 44.97n/113.22w/6350

... Broadwater County...
Elkhorn RAWS - 8 W Townsend 48 mph 0354 PM 02/20 46.31n/111.70w/6010

... Cascade County...
Monarch Canyon MDT 40 mph 0105 PM 02/20 47.14n/110.82w/5197

... Fergus County...
Judith Peak 46 mph 0252 PM 02/20 47.22n/109.22w/6428

... Gallatin County...
yellow mule RAWS 56 mph 0304 PM 02/20 45.17n/111.36w/9200
Bridger Bowl - lift midway 48 mph 0500 PM 02/20 45.82n/110.92w/7000
Bridger Bowl - slushmans lif 45 mph 0500 PM 02/20 45.80n/110.93w/8284
Three Forks apt 45 mph 0135 PM 02/20 45.88n/111.57w/4089
Bridger Bowl - ridge 41 mph 0500 PM 02/20 45.82n/110.93w/8500

... Madison County...
5 W Big Sky 78 mph 0200 PM 02/20 45.28n/111.45w/11144
Yellowstone club - Timber 61 mph 0500 PM 02/20 45.23n/111.45w/9400
Norris Hill MDT 58 mph 0227 PM 02/20 45.50n/111.70w/5400
Ennis Big Sky 51 mph 0215 PM 02/20 45.27n/111.65w/5383
Ennis RAWS 51 mph 0316 PM 02/20 45.30n/111.75w/5070
Raynolds Pass MDT 48 mph 0225 PM 02/20 44.73n/111.47w/6834
Burnt Creek RAWS 46 mph 0143 PM 02/20 44.95n/111.96w/6954
Yellowstone club - Andesite 40 mph 0200 PM 02/20 45.26n/111.41w/8850

Observations are collected from a variety of sources with varying
equipment and exposures. Not all data listed are considered official.


Weather Severe Map
Alaska - Blizzard Watch , Winter Storm Watch , Blizzard Warning , Special Statement
California - Flash Flood Warning , Areal Flood Warning , Flash Flood Warning, Areal Flood Warning , Flood Warning, Areal Flood Warning , Flood Warning , Areal Flood Warning , Flood Warning, Flash Flood Warning , Areal Flood Watch , Areal Flood Advisory , Areal Flood Advisory, Areal Flood Watch , High Surf Advisory , Flood Watch , Areal Flood Watch, Areal Flood Advisory , Flash Flood Watch , High Wind Warning , Wind Advisory , High Wind Warning, Wind Advisory , Winter Storm Warning , Winter Weather Advisory , Hydrologic Statement , Hydrologic Statement, Avalanche Warning , Public Information Statement
Colorado - Fire Weather Watch , Fire Weather Warning , Fire Weather Watch, Fire Weather Warning , Public Information Statement
Hawaii - High Surf Advisory , Wind Advisory
Idaho - Areal Flood Warning , Flood Warning , Areal Flood Warning , Areal Flood Advisory , Flood Watch, Areal Flood Watch , Areal Flood Watch , Areal Flood Advisory, Flood Watch , Flood Watch , Wind Advisory , Winter Storm Warning
Iowa - Public Information Statement
Kansas - Fire Weather Watch
Louisiana - Special Statement
Minnesota - Flood Warning , Public Information Statement
Mississippi - Special Statement
Montana - Areal Flood Warning , Areal Flood Watch , Wind Advisory , Winter Storm Warning , Record Report , Public Information Statement
Nebraska - Fire Weather Watch , Special Statement , Public Information Statement
Nevada - Areal Flood Warning , Areal Flood Warning , Flood Warning, Areal Flood Warning , Areal Flood Watch , Wind Advisory , High Wind Warning , Winter Storm Warning , Avalanche Warning
New Mexico - Fire Weather Watch
North Dakota - Flood Warning
Oklahoma - Dense Fog Advisory
Oregon - Flood Warning , Areal Flood Watch , Wind Advisory , High Wind Warning, Wind Advisory , Winter Storm Warning , Winter Weather Advisory , Winter Weather Advisory, Winter Storm Warning
South Dakota - Flood Warning , Areal Flood Advisory
Texas - Flood Warning , Public Information Statement
Utah - Wind Advisory , Winter Weather Advisory
Washington - Areal Flood Watch , Flood Watch, Areal Flood Watch , Winter Weather Advisory
Wisconsin - Flood Warning , Public Information Statement
Wyoming - Areal Flood Warning , High Wind Warning , Winter Storm Warning , Special Statement , Air Quality Alert

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