Hazardous Weather Outlook
Issued by NWS Denver/Boulder, CO

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FLUS45 KBOU 131154

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
454 AM MST Wed Dec 13 2017

Jackson County Below 9000 Feet-
West Jackson and West Grand Counties Above 9000 Feet-
Grand and Summit Counties Below 9000 Feet-
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
9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Central and Southeast Park County-
Larimer County Below 6000 Feet/Northwest Weld County-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield
North Douglas County Below 6000 Feet/Denver/West Adams and
Arapahoe Counties/East Broomfield County-
Elbert/Central and East Douglas Counties Above 6000 Feet-
Northeast Weld County-Central and South Weld County-Morgan County-
Central and East Adams and Arapahoe Counties-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Logan County-Washington County-Sedgwick County-Phillips County-
454 AM MST Wed Dec 13 2017

|This hazardous weather outlook is for northeast and north
central Colorado.

.DAY ONE...Today and Tonight

A weak disturbance and associated cold front will move across the
region today with cooler temperatures and gusty winds on the
plains. Wind gusts up to 45 mph can be expected over the far
northeast plains.

A stronger storms system will move across Colorado tonight with
snow spreading over the mountains this evening and over the
adjacent plains and Palmer Divide towards midnight. Snowfall
accumulations will be on the lighter side with 2 to 5 inches in
the mountains and 1 to 3 inches over adjacent plains and Palmer
Divide by early Thursday morning. Expect roads to become icy and
snow packed by later tonight. Further east over the far northeast
plains, there will be a slight chance of snow but no accumulation
is expected.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Thursday mornings commute may be affected due to the overnight
snowfall, decreasing snow showers during the morning and cold
temperatures. Storm total snow amounts will likely be in the 2 to
6 inch range for the mountains, and in the 1 to 2 inch range for
the urban corridor and Palmer Divide. Strong northerly winds will
develop over the eastern plains by Thursday afternoon, with gusts
to 30 to 50 mph, to impact light and high profile vehicles
traveling on east to west oriented roads.

After a warmer and dry day on Friday, another system will impact
the forecast area this weekend with snow likely and colder


Spotter activation will not be needed today or tonight. However,
snowfall reports will be appreciated.


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