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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1108 AM MDT Thu Apr 27 2017

COZ030>051-281715-
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-
1108 AM MDT Thu Apr 27 2017

...MOUNTAIN SNOW WINDING DOWN THIS EVENING...
...WINTER STORM WATCH FRONT RANGE FOOTHILLS AND PALMER DIVIDE
FRIDAY NIGHT INTO SATURDAY...

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

.DAY ONE...Today and Tonight

A few brief moderate to heavy snow showers will occur across the
northern and central mountains this afternoon. Otherwise, light
snow will occur across the higher mountains today into tonight. This
includes I-70 through Summit county, and Highway 40 over Berthoud
Pass and Rabbit Ears Pass. On the plains, rain showers will
become more numerous this afternoon and evening. Across far
eastern Colorado a few thunderstorms may also develop with gusty
winds up to 35 mph, lightning, and small hail possible.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

A storm system will drop toward the Four Corners region Friday
night as a strong cold front moves across northeast Colorado.
Snow will develop over the foothills by late afternoon. In the
Denver area snow will develop in the evening, with the eastern
plains receiving a mix of rain and snow changing to mostly snow
overnight. Significant snowfall will be possible in the foothills
and over the Palmer Divide south of Denver where a Winter Storm
Watch is in effect. Snow accumulations up to a foot will be
possible in the foothills. Snow accumulations in the Denver area
will be lighter, but snow accumulating on leafed out vegetation
may lead to some breaking tree branches.

The snow storm should be moving out of the state by Saturday
afternoon and evening, but cool and unsettled weather may last
through Tuesday with a chance of afternoon and evening showers
each day. Warmer and drier weather are expected to return
Wednesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

$$

Schlatter/Gimmestad



Winter Weather Advisory

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver/Boulder CO
449 AM MDT Fri Apr 28 2017

...MORE SNOW HEADED TO COLORADO...

.A Spring storm system will bring cold temperatures and snow to
much of the area tonight through Saturday. Significant snow
accumulations are expected across the Front Range Foothills and
and Palmer Divide. Accumulating snow can be expected across most
of the plains as well, with a few inches expected from the Denver
Metro area southeast along the I-70 corridor through Limon.  The
wintry conditions may impact travel. Wet snow accumulating on
trees that have already leafed out may also result in broken tree
limbs and scattered power outages. Stay tuned to the National
Weather Service or your local news media for the latest updates on
this winter-like storm.

COZ039-040-045>047-281900-
/O.NEW.KBOU.WW.Y.0021.170429T0000Z-170430T0000Z/
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-
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-
449 AM MDT Fri Apr 28 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO
6 PM MDT SATURDAY...

The National Weather Service in Denver has issued a Winter
Weather Advisory for snow, which is in effect from 6 PM this
evening to 6 PM MDT Saturday.

* TIMING...Rain showers will develop across the plains and I-25
  Corridor this afternoon, and then mix with and change to snow
  late this afternoon into early evening. The snow may be briefly
  heavy early this evening, but then taper to light snow and
  continue through much of Saturday before ending.

* SNOW ACCUMULATIONS...3 to 6 inches. Locally heavier amounts
  possible right next to the foothills.

* WIND/VISIBILITY...Northeast winds 10 to 20 mph. Visibility may
  be reduced to a half mile or less in the heavier snow showers
  this evening.

* IMPACTS...Wet snow may accumulate on already leafed out trees,
  resulting in broken tree limbs and scattered power outages. Some
  roads will become snow and slush covered this evening with the
  heavier snow showers. Hazardous travel conditions may linger
  into Saturday morning with temperatures dropping below freezing
  tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means that periods of snow may cause
travel difficulties, and other impacts such as broken tree limbs.
Be prepared for slippery roads and limited visibilities...and use
caution while driving. If possible, safely knock accumulated snow
off vulnerable trees.

&&

$$



U.S. Dept. of Commerce
NOAA National Weather Service
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Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: May 16, 2007
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