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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1110 AM MDT Tue Mar 21 2023

COZ030>051-221715-
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-
1110 AM MDT Tue Mar 21 2023

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

.DAY ONE...Today and Tonight

Slick roads and minor travel impacts in the mountains following
snow showers last night and this morning. After a brief lull,
snow showers increase in the mountains from southwest to
northeast late this afternoon, through the evening and overnight.
Snow covered roads and patchy blowing snow will impact travel
again.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Strong winds are expected over the mountains and on the plains
south of Interstate 70 on Wednesday. Peak gusts of 40 to 55 mph
are likely in these areas. Over northeastern Colorado winds will
be lighter in the morning, but increase in the afternoon with
gusts up to 40 mph. The winds and low humidity will create
elevated fire weather conditions, especially south of a line from
Colorado Springs to Limon.

The mountains will have another batch of snow that will peak on
Wednesday morning. Additional accumulations will be 4 to 10 inches
over the higher mountains with the heaviest amounts around Rabbit
Ears and Cameron passes. Valley areas will see 1 to 3 inches of
snow.

For Thursday through Saturday, an unsettled pattern will bring
periods of mainly light snow showers to the mountains. The plains
will mostly be dry though a few light rain showers are possible
with breezy to windy conditions possible on Saturday. A larger
storm system is expected to cross the Rockies on Sunday or
Monday, likely bringing colder temperatures with mountain snow and
a chance of rain and snow to lower elevations.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

$$



Winter Weather Advisory

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver CO
226 PM MDT Tue Mar 21 2023

...MORE MOUNTAIN SNOW ARRIVES LATE THIS EVENING...

.Snow is expected to redevelop across the mountains late this
evening and increase through the overnight hours. Snow and blowing
snow is likely through the day Wednesday before ending Wednesday
night.

COZ031-033-034-221200-
/O.EXT.KBOU.WW.Y.0022.230322T0600Z-230323T0600Z/
West Jackson and West Grand Counties Above 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-
Including the cities of East Slopes Mosquito Range, Mt Zirkel,
Eisenhower Tunnel, East Slopes Southern Gore Range, Williams Fork
Mountains, Winter Park, Rocky Mountain National Park, Laramie and
Medicine Bow Mountains, Breckenridge, Indian Peaks, Willow Creek
Pass, Kenosha Mountains, Mount Evans, Berthoud Pass, Rabbit Ears
Range, and Cameron Pass
226 PM MDT Tue Mar 21 2023

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM MIDNIGHT TONIGHT TO
MIDNIGHT MDT WEDNESDAY NIGHT...

* WHAT...Snow expected. Total snow accumulations between 6 and 12
  inches, with isolated higher totals. Winds gusting as high as 55
  mph.

* WHERE...Rabbit Ears Pass, Rocky Mountain National Park and the
  Medicine Bow Range, and The Mountains of Summit County, the
  Mosquito Range, and the Indian Peaks.

* WHEN...From Midnight tonight to Midnight MDT Wednesday Night.

* IMPACTS...Snow covered roads will make travel hazardous,
  especially through mountain passes. Areas of blowing snow could
  significantly reduce visibility. Use caution when traveling.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road
conditions for Colorado can be obtained by calling 5 1 1 or by going
to www.cotrip.org.

Chain and traction laws will possibly be enacted for the mountains.
If traveling to the mountains, be prepared for winter driving
conditions.

&&

$$

For more information from the National Weather Service, visit
https://weather.gov/bou

Hiris



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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