Hazardous Weather Outlook
Issued by NWS Denver/Boulder, CO

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FLUS45 KBOU 171157
HWOBOU

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
457 AM MST Fri Nov 17 2017

COZ030>051-181200-
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
County-
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
County-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Logan County-Washington County-Sedgwick County-Phillips County-
457 AM MST Fri Nov 17 2017

...STRONG WINTER STORM TO IMPACT THE COLORADO MOUNTAINS TODAY...

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

.DAY ONE...Today and Tonight

A strong pacific system will spread snow across the high country,
heavy at times, and bring winds up to 50 mph to create blowing
snow and poor travel conditions, especially in the afternoon and
evening. Snowfall amounts of 1 to 2 feet are expected over the
mountains near and north of Rabbit Ears Pass, with 6 to 18 inches
over Rocky Mountain National Park and 6 to 12 inches over the
mountains near the I-70 corridor. The foothills and high valleys
will likely only recieve 1 to 4 inches. The snow will diminish
quickly after midnight, but light flurries will likely last until
sunrise.

Across the plains, strong west to southwesterly winds this
morning and into the afternoon gusting to 25 mph, will switch to
northwesterly behind a strong cold front early this evening with
gusts near 40 mph possible. Light rain showers will spread across
ahead of the front, with some snow to mix in after 8 PM, clearing
out just after midnight. The urban corridor, especially northern
areas, will likely be mostly downsloped. Accumulations of less
than half an inch is expected, and will likely only stick to
grassy surfaces, if any.


.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Dry and warmer conditions will return over the weekend with
decreasing winds by Saturday afternoon. Gusty winds will increase
over the mountains Sunday night with speeds up to 50 mph
possible. There will be another chance for snow in the mountains
on Monday night and then cooler all areas on Tuesday as a weak
upper level disturbances passes through. Warmer and drier again
for Wednesday and Thursday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight, however
snowfall and wind gust measurements will be appreciated.

$$


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