Green Mountains and Rattlesnake Range Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Winter Storm Warning
Issued: 2:34 PM MST Feb. 17, 2018 – National Weather Service

... Winter Storm Warning in effect from 11 am Sunday to 5 PM MST

* what... snow will become widespread across the area from late
morning into the afternoon hours on Sunday. The snow will be
moderate to heavy at times Sunday night with more light to
locally moderate snow on Monday. Total snow accumulations of 5
to 8 inches, with 8 to 10 inches across the eastern portion of
the area.

* Where... Green Mountains and rattlesnake range.

* When... from 11 am Sunday to 5 PM MST Monday.

* Additional details... plan on difficult travel conditions.
Winds gusting as high as 35 mph will cause patchy blowing and
drifting snow. The cold wind chills as low as 20 below zero
could cause frostbite on exposed skin in as little as 30

Precautionary/preparedness actions...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency. The latest Road conditions for
the state you are calling from can be obtained by calling 5 1 1.

High Wind Warning
Issued: 2:17 PM MST Feb. 17, 2018 – National Weather Service

... High Wind Warning remains in effect until 5 am MST Sunday...

* timing... southwest winds will continue to increase into this
evening. These winds will continue through the overnight hours,
gradually decreasing before sunrise Sunday.

* Winds... southwest winds of 30 to 40 mph with gusts of 65 mph
across the lower elevations with gusts over 70 mph on outer
drive in Casper.

* Impacts... travellers along Interstate 25 should prepare for
very strong and erratic cross-winds. Travellers along Highway
789/287/220 from South Pass to Casper should prepare for very
strong winds, along with possibly blowing/drifting snow.

Precautionary/preparedness actions...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

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