Upper Snake Highlands Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Wind Chill Warning
Issued: 12:32 PM MST Feb. 19, 2018 – National Weather Service

... Wind chill warning in effect from 6 PM this evening to 10 am
MST Tuesday...

* what... dangerously cold wind chills will cause frostbite in as
little as 10 minutes to exposed skin. Expect wind chills to
range from 20 below zero to 35 below zero.

* Where... the upper snake Highlands, including Clark and Fremont
counties in Idaho, including the towns of Macks Inn, Island
Park, DuBois, and Spencer.

* When... from 6 PM this evening to 10 am MST Tuesday. At first,
elevations at or above 7000 ft will be affected, then by
midnight this should spread down in elevation until nearly all
of Clark and most of Fremont counties are affected.

* Additional details... the windchill is caused by air temperatures
below zero combining with wind of 10 to 15 mph.

Precautionary/preparedness actions...

A wind chill warning means the combination of very cold air and
the wind will create dangerously low wind chill values. Frost
bite can occur quickly and even hypothermia or death if
precautions are not taken.