Winter Weather Warnings / Watches / Advisories
Issued by NWS Denver/Boulder, CO
WWUS45 KBOU 230547
URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver/Boulder CO
1147 PM MDT Wed Mar 22 2017
A spring storm will bring much needed precipitation to northeast
and north central Colorado. Precipitation is expected to develop
across the forecast area Thursday afternoon then intensify
Thursday night into Friday morning as the storm system strengthens
over southeast Colorado. Moderate to heavy snowfall will be
possible over the mountains, foothills and Palmer Ridge Thursday
night into Friday morning, heaviest along and south of of the
I-70 corridor. Hazardous driving conditions will develop in these
areas. Very strong northerly winds will develop Friday morning,
strongest east of I-25.
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
South and Southeast Grand/West Central and Southwest Boulder/
Gilpin/Clear Creek/Summit/North and West Park Counties Above
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Elbert/Central and East Douglas Counties Above 6000 Feet-
Including the cities of Cameron Pass,
Laramie and Medicine Bow Mountains, Rabbit Ears Range,
Rocky Mountain National Park, Willow Creek Pass, Berthoud Pass,
Breckenridge, East Slopes Mosquito Range,
East Slopes Southern Gore Range, Eisenhower Tunnel, Indian Peaks,
Kenosha Mountains, Mount Evans, Williams Fork Mountains,
Winter Park, Bailey, Central City, Evergreen, Georgetown,
Idaho Springs, Westcreek, Castle Rock, Elbert, Fondis, Kiowa,
1147 PM MDT Wed Mar 22 2017
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY EVENING
THROUGH FRIDAY MORNING...
* TIMING...Snow will increase in intensity over the mountains,
southern foothills and Palmer Ridge late Thursday evening into
Friday morning. The heaviest snowfall is likely from just
after midnight Thursday night to just after dawn Friday
* SNOW ACCUMULATIONS...7 to 15 inches over the high mountains
and southern foothills with 6 to 11 inches over the Palmer
Ridge. Snowfall rates up to two inches per hour are possible
in the mountains and southern foothills early Friday morning.
* WIND/VISIBILITY...Northerly winds are expected 25 to 35 mph with
gusts to 50 mph over the Palmer Ridge late Thursday night and
Friday morning. Speeds will be much lighter in the mountains and foothills
with gusts up to 20 mph at best. Visibilities could be under
one quarter of a mile in the windiest areas.
* IMPACTS...Heavy snow, strong winds and poor visibilities will
create hazardous winter driving conditions. Roads will be icy
and snow packed.
A Winter Storm Watch means there is a potential for significant
snow...sleet...or ice accumulations that may impact travel.
Continue to monitor the latest forecasts.