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2 products issued by NWS for: Denver CO
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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1149 AM MST Mon Jan 21 2019

COZ030>051-221900-
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-
1149 AM MST Mon Jan 21 2019

...Blizzard Warning in effect for areas east and south of Denver
late this evening through Tuesday morning...
...Winter Weather Advisories this evening through Tuesday morning
for the northern and central Mountains, southern Front Range
Foothills, western Denver suburbs and the rest of the plains north
and northeast of Denver...

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

.DAY ONE...Today and Tonight

A winter storm will move into the area tonight with snow
increasing in the mountains late this afternoon and across the
rest of the area this evening. Moderate to heavy snow may occur
over portions of the northeast Plains and Palmer Divide by late
evening and overnight. In addition north winds gusting to 50 mph
will develop across the plains after midnight with very poor
visibilities and blizzard conditions.

Travelers should be prepared for snowpacked and slick road
conditions. The strong winds will cause poor visibilities due
to blowing snow. The worst conditions are expected to occur along
Interstate 70 from around Watkins east to the Kansas border, and
Interstate 25 from south of Denver to Monument Ridge. In addition
I-76 may be affected as well from northeast of Denver to Sterling
and Julesburg.


.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Snow, strong winds and blowing snow will continue over the plains
on Tuesday morning. Snow will end by noon, but the strong winds
will continue through the afternoon. Travelers should be prepared
for snowpacked and slick road conditions, with poor visibility in
blowing snow.

There will be a chance of snow in the mountains Wednesday through
Saturday evening with a slight chance of snow over the plains
Wednesday night and Thursday. Significant accumulations are not
expected. Temperatures generally remain below seasonal normals
Tuesday through Saturday, then warmer on Sunday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

$$



Winter Weather Advisory

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver CO
817 PM MST Mon Jan 21 2019

...BLIZZARD CONDITIONS EAST AND SOUTH OF DENVER TONIGHT THROUGH
TUESDAY MORNING...

.A potent winter storm will move across northern Colorado tonight
with a slight delay in the development of blizzard conditions over
the plains unitl later this evening.

Across the northeast plains, a strong cold front will move
southward across the plains through midnight. Moderate to heavy
snow is expected to develop behind the front and continue with a
quick burst of heavy snow over a 2 to 3 hour period where
snowfall intensities could approach 2 inches per hour. Strong
north to northwest winds will develop behind the front and
continue overnight with blow snow and poor visibilities. The
combination of snow and strong winds will produce blizzard
conditions across the plains between towards 10 pm and continue
into Tuesday morning.

Travel through the mountains and across the northeast plains will
be impacted tonight into Tuesday morning. Stay tuned for further
updates on this winter storm.

COZ039-040-042-043-221230-
/O.CON.KBOU.WW.Y.0006.000000T0000Z-190122T1600Z/
Boulder and the western suburbs of Denver-Denver-Briggsdale-
Greeley-
Including the cities of Arvada, Boulder, Golden, Lakewood,
Longmont, Aurora, Brighton, City of Denver,
Denver International Airport, Highlands Ranch, Littleton, Parker,
Briggsdale, Grover, Pawnee Buttes, Raymer, Stoneham, Eaton,
Fort Lupton, Greeley, and Roggen
817 PM MST Mon Jan 21 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM MST
TUESDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 5 inches
  expected. Winds gusting as high as 45 mph.

* WHERE...Boulder, Denver, Ft Lupton, Golden, Greeley and
  Briggsdale.

* WHEN...From 8 PM this evening to 9 AM MST Tuesday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Blowing
  snow could significantly reduce visibility. The hazardous
  conditions could impact the morning commute. Gusty winds could
  bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roadsrain showers will
quickly change over to snow this evening. Moderate to heavy snow
will be possible over the northeast plains. and limited
visibilities, and use caution while driving.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$



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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