Hazardous Weather Outlook
Issued by NWS Denver/Boulder, CO

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FLUS45 KBOU 281200
HWOBOU

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
600 AM MDT Fri Apr 28 2017

COZ030>051-291200-
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-
600 AM MDT Fri Apr 28 2017

...WINTER STORM WARNING FRONT RANGE FOOTHILLS AND PALMER DIVIDE
LATE THIS AFTERNOON THROUGH SATURDAY...
...WINTER WEATHER ADVISORY FOR DENVER METRO AREA EAST/SOUTHEAST
ALONG THE I-70 CORRIDOR THROUGH LIMON...AND FOR THE FRONT RANGE
MOUNTAINS AND SOUTH PARK TONIGHT AND SATURDAY...

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

.DAY ONE...Today and Tonight

A spring storm system and strong cold front will bring a return of
snow to much of the area late this afternoon through tonight. On
the plains, rain showers and isolated thunderstorms will develop
along and behind the cold front through this afternoon. Those
showers will mix with and change over to all snow through the
early evening hours. The heaviest snow is likely to focus in and
near the Front Range Foothills and Palmer Divide. Snowfall rates
of 1 to 2 inches per hour will be possible there with the heavier
showers into early evening, then a steadier but somewhat lighter
snow should occur through the rest of the night.

The wet snow may accumulate sufficiently on leafed out trees to
cause tree limbs to break under the weight of snow. Scattered
power outages will be possible tonight and Saturday. Hazardous
winter travel conditions will also develop across the Front
Range Mountains and Foothills, and Palmer Divide between 3 and 6
PM. Travelers should plan accordingly. The I-25 corridor may see
slick road conditions develop this evening where heavier snow
showers occur. Bridges and overpasses will be the first to
accumulate snow and slush.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Snow will continue across the forecast area Saturday morning as the
Spring storm system moves across northern New Mexico and eastern
Colorado. Conditions will begin improving Saturday afternoon as
the storm system moves out onto the central plains. Total snow
accumulations from this storm are expected to range from 1 to 3
inches over the northeast plains, to 3-7 inches from the Denver
metro area into Lincoln county, to 8-15 inches in the Front Range
Foothills and Palmer Divide. Lighter snow accumulations will occur
west of the Front Range mountains including much of Summit, Grand,
and Jackson counties.

Clearing skies Saturday evening will allow temperatures to drop
to the lower 20s Sunday morning. Sunday will be dry but cool as a
weak upper ridge moves over the state. The first half of next week
will feature a continuation of cooler temperatures with a chance
of afternoon showers or thunderstorms each day. Small hail and
brief rain showers will be the main threat from these storms.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

$$



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