Upper Snake River Plain Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Winter Weather Advisory
Issued: 3:19 AM MST Dec. 15, 2017 – National Weather Service

... Winter Weather Advisory in effect from 5 am to 5 PM MST

* what... snow expected. Plan on slippery Road conditions. Total
snow accumulations of 1 to 3 inches are expected with locally
higher amounts across mountain passes.

* Where... Interstate 15 corridor from Inkom and Pocatello to Idaho
Falls, Highway 30 from McCammon to Wyoming border, with highest
amounts Fish Creek Summit, emigration Summit, Border Summit,
Geneva Summit.

* When... 5 am to 5 PM Saturday. Heaviest snow across the
Interstate 15 corridor from Pocatello to Idaho Falls is expected
between 5 am to 11 am Saturday morning.

* Additional details... reduce driving speeds and allow for extra
time to reach your destination.

Precautionary/preparedness actions...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and reduce driving speeds. The
latest Road conditions can be obtained by calling 5 1 1.

For more information from the National Weather Service visit

Dense Fog Advisory
Issued: 8:45 PM MST Dec. 14, 2017 – National Weather Service

... Dense fog advisory in effect until noon MST Friday...

The National Weather Service in Pocatello has issued a dense fog
advisory, which is in effect until noon MST Friday.

* Visibility... widespread areas of near zero visibility are
expected across the eastern Magic Valley and Snake River Plain.
Cities impacted include Burley, American Falls, Pocatello,
Blackfoot, Idaho Falls, and Rexburg.

* Impacts... reduced visibility will make traveling at normal
Highway speeds hazardous. Dense freezing fog may create black
ice on roadways, especially bridges and overpasses, making them

Precautionary/preparedness actions...

A dense fog advisory means visibilities will frequently be
reduced to less than one quarter mile. If driving, slow down, use
your low beam or fog headlights, and leave plenty of distance
ahead of you.