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Wyoming, Yellowstone National Park

Winter Storm Warning

Statement as of 2:31 AM MST on December 21, 2014

Expires 10:00 AM EST on December 22, 2014


... Winter Storm Warning remains in effect until 8 am MST Monday...

A Winter Storm Warning remains in effect until 8 am MST Monday.

* Summary and timing... snowfall will increase tonight... and will
be heavy at times before weakening on Monday morning.

* Snow accumulations... the valley locations may see 6 to 10
inches of snowfall with this system with the higher
accumulations expected across the south near the southern
Entrance. Mountain locations could see 12 to 24 inches... with
locally higher amounts.

* Wind and visibility... wind will be strongest over the mountain
passes with west wind of 25 to 35 mph with gusts over 45 mph.
The lower elevations will see southwest wind increasing to 15
to 25 mph on Sunday with gusts to 35 mph in open areas. The
wind and snowfall will limit the visibility to under a quarter
mile at times.

* Impacts... the combination of snowfall and wind over the higher
elevations would have an adverse impact on travelers across
the area. Significant snowfall across the valleys will create
hazardous driving conditions due to snow packed roadways.

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.

The latest Road conditions provided by the Wyoming Department of
Transportation are available by calling 5-1-1 or on the internet
at wyoroad.Info.





Weather Severe Map
Alaska - Record Report
American Samoa - Flood Advisory, Flash Flood Watch , Flash Flood Watch
California - High Surf Advisory , Coastal Flood Advisory, High Surf Advisory , Coastal Flood Advisory , Wind Advisory , Wind Advisory, High Wind Warning , Beach Hazard Statement
Colorado - Wind Advisory , Winter Weather Advisory , Winter Storm Warning , Public Information Statement
Connecticut - Special Statement , Public Information Statement
Hawaii - High Surf Advisory , High Surf Warning , Record Report
Idaho - Areal Flood Advisory , Wind Advisory , Winter Weather Advisory , Winter Storm Warning , Avalanche Warning , Record Report
Indiana - Special Statement
Iowa - Dense Fog Advisory , Dense Fog Advisory
Kansas - Dense Fog Advisory , Public Information Statement
Kentucky - Special Statement
Louisiana - Dense Fog Advisory
Massachusetts - Special Statement , Public Information Statement
Minnesota - Winter Storm Watch , Dense Fog Advisory , Special Statement
Montana - Wind Advisory , High Wind Warning , Winter Weather Advisory , Winter Storm Warning , Freezing Rain Advisory , Special Statement
Nebraska - Dense Fog Advisory , Special Statement , Public Information Statement
Nevada - Wind Advisory , Winter Weather Advisory , Record Report , Public Information Statement
New Hampshire - Public Information Statement
New Mexico - Wind Advisory
New York - Special Statement
North Dakota - Special Statement
Oregon - Flood Warning , Flood Warning, Areal Flood Warning , Areal Flood Watch , Areal Flood Watch , Coastal Flood Advisory, Areal Flood Watch , Wind Advisory , High Wind Warning , Wind Advisory, High Wind Warning , Record Report
Rhode Island - Special Statement , Public Information Statement
South Dakota - Winter Storm Watch , Special Statement
Texas - Dense Fog Advisory
Utah - Winter Storm Warning , Winter Weather Advisory , Avalanche Warning
Washington - Flood Warning , Areal Flood Watch , Flood Watch / Flood Statement , Areal Flood Watch , Coastal Flood Advisory, Areal Flood Watch , Wind Advisory , High Wind Warning , Record Report
Wisconsin - Special Statement
Wyoming - High Wind Warning , High Wind Watch , Winter Storm Watch , Winter Weather Advisory , Winter Storm Warning , Special Statement