Blizzard Watch 1, NWS Denver/Boulder, CO

877 
WWUS45 KBOU 231812
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver/Boulder CO
1212 PM MDT Thu Mar 23 2017

...Blizzard conditions possible late tonight through Friday
morning across the Palmer Divide towards the Limon area...

A spring storm will bring much needed precipitation to northeast
and north central Colorado. Precipitation is expected to develop
across the forecast area tonight and then intensify late tonight
through Friday morning as the storm system strengthens over
southeast Colorado. Moderate to heavy snowfall will be possible
over the mountains, foothills and Palmer Ridge late tonight into
Friday morning, heaviest along and south of of the I-70 corridor.
Very strong northerly winds will develop late tonight and
continue through midday Friday across the plains. Blizzard 
conditions will be possible from the Palmer Divide east towards 
Limon and north across central and eastern Adams and Arapahoe 
Counties with zero visiblities at times.

COZ033-240215-
/O.CON.KBOU.WW.Y.0015.170324T0600Z-170324T1800Z/
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
Including the cities of Cameron Pass, 
Laramie and Medicine Bow Mountains, Rabbit Ears Range, 
Rocky Mountain National Park, and Willow Creek Pass
1212 PM MDT Thu Mar 23 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT
TONIGHT TO NOON MDT FRIDAY...

* TIMING...Snow will increase in intensity over the northern 
  mountains after midnight and continue into Friday morning. The 
  heaviest snowfall is likely from late night through mid 
  morning Friday. 

* SNOW ACCUMULATIONS...4 to 8 inches.

* WIND/VISIBILITY...North 10 to 20 mph. Visibilities could be 
  under one quarter of a mile in heavier snow. 

* IMPACTS...Snow, gusty winds and poor visibilities will create 
  hazardous winter driving conditions. Roads will be icy and 
  snow packed. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities...and use caution while
driving.

&&

$$

COZ041-240215-
/O.CON.KBOU.BZ.A.0001.170324T0600Z-170324T1800Z/
Elbert/Central and East Douglas Counties Above 6000 Feet-
Including the cities of Castle Rock, Elbert, Fondis, Kiowa, 
and Larkspur
1212 PM MDT Thu Mar 23 2017

...BLIZZARD WATCH REMAINS IN EFFECT FROM MIDNIGHT MDT TONIGHT
THROUGH FRIDAY MORNING...

* TIMING...Snow will increase in intensity after midnight, and 
  continue through Friday morning. 

* SNOW ACCUMULATIONS...6 to 12 inches over the Palmer Ridge. 
  Snowfall rates up to two inches per hour will be possible 
  Friday morning. 

* WIND/VISIBILITY...Northerly winds are expected to increase to 
  35 to 45 mph with gusts to 65 mph over the Palmer Ridge late 
  tonight through Friday morning. Visibilities will be near zero 
  at times. 

* IMPACTS...Heavy snow, strong winds and poor visibilities will 
  create hazardous winter driving conditions. Roads will be icy 
  and snow packed. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Watch means there is a potential for falling and/or
blowing snow with strong winds and extremely poor visibilities.
This can lead to whiteout conditions and make travel very
dangerous.

&&

$$

COZ045-046-240215-
/O.CON.KBOU.BZ.A.0001.170324T0900Z-170324T1800Z/
Central and East Adams and Arapahoe Counties-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Including the cities of Bennett, Byers, Deer Trail, Leader, 
Agate, Hugo, Limon, and Matheson
1212 PM MDT Thu Mar 23 2017

...BLIZZARD WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
FRIDAY MORNING...

* TIMING...Rain will change to snow late tonight and continue 
  through midday Friday before decreasing in the afternoon. 

* SNOW ACCUMULATIONS...3 to 6 inches.

* WIND/VISIBILITY...North winds will increase to 35 to 45 mph 
  late tonight with gusts up to 65 mph at times through early 
  Friday afternoon. Visibilities will be near zero at times. 

* IMPACTS...Heavy snow, strong winds and poor visibilities will 
  create hazardous winter driving conditions. Roads will be icy 
  and snow packed. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Watch means there is a potential for falling and/or
blowing snow with strong winds and extremely poor visibilities.
This can lead to whiteout conditions and make travel very
dangerous.

&&

$$

COZ034-036-240215-
/O.CON.KBOU.WS.A.0007.170324T0600Z-170324T1800Z/
South and Southeast Grand/West Central and Southwest Boulder/
Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Including the cities of Berthoud Pass, Breckenridge, 
East Slopes Mosquito Range, East Slopes Southern Gore Range, 
Eisenhower Tunnel, Indian Peaks, Kenosha Mountains, Mount Evans, 
Williams Fork Mountains, Winter Park, Bailey, Central City, 
Evergreen, Georgetown, Idaho Springs, and Westcreek
1212 PM MDT Thu Mar 23 2017

...WINTER STORM WATCH REMAINS IN EFFECT FROM MIDNIGHT MDT TONIGHT
THROUGH FRIDAY MORNING...

* TIMING...Snow will increase in intensity over the mountains 
  and southern foothills after midnight and continue through 
  Friday morning. The heaviest snowfall is likely from late 
  tonight through Friday morning. 

* SNOW ACCUMULATIONS...7 to 14 inches over the high mountains 
  and southern foothills. Snowfall rates up to two inches per 
  hour will be possible in the mountains and southern foothills 
  early Friday morning. 

* WIND/VISIBILITY...Northerly winds from 15 to 25 mph with gusts 
  to 35 mph are expected over the southern Foothills late 
  tonight through Friday morning. Speeds will be much lighter in 
  the mountains with gusts up to 20 mph at times. Visibilities 
  could be under one quarter of a mile in the windiest areas. 

* IMPACTS...Heavy snow, strong winds and poor visibilities will 
  create hazardous winter driving conditions. Roads will be icy 
  and snow packed. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is a potential for significant
snow...sleet...or ice accumulations that may impact travel.
Continue to monitor the latest forecasts.

&&

$$

824 
WWUS45 KBOU 232128
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver/Boulder CO
328 PM MDT Thu Mar 23 2017

...Strong storm to blizzard conditions 

bring snow, rain and wind 
later tonight and ate tonight through Friday morning across the 
Palmer Divide towards the Limon area...

A spring storm will bring much needed precipitation to northeast
and north central Colorado. Precipitation is expected to develop
across the forecast area tonight and then intensify late tonight
through Friday morning as the storm system strengthens over
southeast Colorado. Moderate to heavy snowfall can be expected 
over the mountains, foothills, Palmer Ridge and some adjacent
plains tonight into Friday morning, heaviest along and south of 
of the I-70 corridor. Very strong northerly winds will develop 
late tonight and continue through midday Friday across the plains.
Blizzard conditions will be possible from the Palmer Divide east 
towards Limon and north across central and eastern Adams and 
Arapahoe Counties with zero visiblities at times.

COZ041-240530-
/O.UPG.KBOU.BZ.A.0001.170324T0600Z-170324T1800Z/
/O.NEW.KBOU.BZ.W.0001.170324T0600Z-170324T1800Z/
Elbert/Central and East Douglas Counties Above 6000 Feet-
Including the cities of Castle Rock, Elbert, Fondis, Kiowa, 
and Larkspur
328 PM MDT Thu Mar 23 2017

...BLIZZARD WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MDT
FRIDAY...

The National Weather Service in Denver has issued a Blizzard
Warning, which is in effect from midnight tonight to noon MDT
Friday. The Blizzard Watch is no longer in effect. 

* TIMING...Snow will increase in intensity after midnight, and 
  continue through Friday morning. 

* SNOW ACCUMULATIONS...6 to 12 inches over the Palmer Ridge. 
  Snowfall rates up to two inches per hour will be possible 
  Friday morning. 

* WIND/VISIBILITY...Northerly winds are expected to increase to 30
  to 40 mph with gusts to 55 mph over the Palmer Ridge late
  tonight through Friday morning. Visibilities will be near zero
  at times. 

* IMPACTS...Heavy snow, strong winds and poor visibilities will 
  create hazardous winter driving conditions. Roads will be icy 
  and snow packed. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. Falling and blowing snow with strong winds
and poor visibilities are likely. This will lead to whiteout
conditions...making travel extremely dangerous. Do not travel. If
you must travel...have a winter survival kit with you. If you get
stranded...stay with your vehicle.

&&

$$

COZ045-046-240530-
/O.UPG.KBOU.BZ.A.0001.170324T0900Z-170324T1800Z/
/O.NEW.KBOU.BZ.W.0001.170324T0900Z-170324T1800Z/
Central and East Adams and Arapahoe Counties-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Including the cities of Bennett, Byers, Deer Trail, Leader, 
Agate, Hugo, Limon, and Matheson
328 PM MDT Thu Mar 23 2017

...BLIZZARD WARNING IN EFFECT FROM 3 AM TO NOON MDT FRIDAY...

The National Weather Service in Denver has issued a Blizzard
Warning, which is in effect from 3 AM to noon MDT Friday. The
Blizzard Watch is no longer in effect. 

* TIMING...Rain will change to snow late tonight and continue 
  through midday Friday before decreasing in the afternoon. 

* SNOW ACCUMULATIONS...5 to 10 inches.

* WIND/VISIBILITY...North winds will increase to 30 to 45 mph late
  tonight with gusts up to 55 mph at times through early Friday 
afternoon. Visibilities will be near zero at times. 

* IMPACTS...Heavy snow, strong winds and poor visibilities will 
  create hazardous winter driving conditions. Roads will be icy 
  and snow packed. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. Falling and blowing snow with strong winds
and poor visibilities are likely. This will lead to whiteout
conditions...making travel extremely dangerous. Do not travel. If
you must travel...have a winter survival kit with you. If you get
stranded...stay with your vehicle.

&&

$$

COZ036-240530-
/O.UPG.KBOU.WS.A.0007.170324T0600Z-170324T1800Z/
/O.NEW.KBOU.WS.W.0006.170324T0600Z-170324T1800Z/
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Including the cities of Bailey, Central City, Evergreen, 
Georgetown, Idaho Springs, and Westcreek
328 PM MDT Thu Mar 23 2017

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO NOON
MDT FRIDAY...

The National Weather Service in Denver has issued a Winter Storm
Warning for heavy snow, which is in effect from midnight tonight 
to noon MDT Friday. The Winter Storm Watch is no longer in effect.

* TIMING...Snow will increase in intensity over the mountains 
  and southern foothills after midnight and continue through 
  Friday morning. The heaviest snowfall is likely from late 
  tonight through Friday morning. 

* SNOW ACCUMULATIONS...6 to 12 inches over the high mountains and
  southern foothills. Snowfall rates up to two inches per hour will
  be possible in the mountains and southern foothills early 
  Friday morning. 

* WIND/VISIBILITY...Northerly winds from 15 to 25 mph with gusts 
  to 35 mph are expected over the southern Foothills late 
  tonight through Friday morning. Speeds will be much lighter in 
  the mountains with gusts up to 20 mph at times. Visibilities 
  could be under one quarter of a mile in the windiest areas. 

* IMPACTS...Heavy snow, strong winds and poor visibilities will create
  hazardous winter driving conditions. Roads will be icy and snow
  packed. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for heavy snow means severe winter weather
conditions are expected or occurring.  Significant amounts of
snow are forecast that will make travel dangerous. Only travel in
an emergency. If you must travel...keep an extra flashlight...
food...and water in your vehicle in case of an emergency.

&&

$$

COZ034-240530-
/O.UPG.KBOU.WS.A.0007.170324T0600Z-170324T1800Z/
/O.EXB.KBOU.WW.Y.0015.170324T0900Z-170324T1800Z/
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 Berthoud Pass, Breckenridge, 
East Slopes Mosquito Range, East Slopes Southern Gore Range, 
Eisenhower Tunnel, Indian Peaks, Kenosha Mountains, Mount Evans, 
Williams Fork Mountains, and Winter Park
328 PM MDT Thu Mar 23 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM TO NOON MDT
FRIDAY...

The National Weather Service in Denver has issued a Winter
Weather Advisory for snow, which is in effect from 3 AM to noon 
MDT Friday. The Winter Storm Watch is no longer in effect.

* TIMING...Snow will increase in intensity over the mountains 
  and southern foothills after midnight and continue through 
  Friday morning. The heaviest snowfall is likely from late 
  tonight through Friday morning. 

* SNOW ACCUMULATIONS...4 to 8 inches mainly over the eastern 
  slopes. 

* WIND/VISIBILITY...Northerly winds from 15 to 25 mph with gusts 
  to 35 mph are expected over the southern Foothills late 
  tonight through Friday morning. Speeds will be much lighter in 
  the mountains with gusts up to 20 mph at times. Visibilities 
  could be under one quarter of a mile in the windiest areas. 

* IMPACTS...Snow, strong winds and poor visibilities will create hazardous
  winter driving conditions. Roads will be icy and snow packed. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for blowing snow means that
visibilities will be limited due to strong winds blowing snow
around. Use caution when traveling...especially in open areas.

&&

$$

COZ039-040-049-240530-
/O.EXB.KBOU.WW.Y.0015.170324T0900Z-170324T1800Z/
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-Washington County-
Including the cities of Arvada, Boulder, Golden, Lakewood, 
Longmont, Aurora, Brighton, City of Denver, 
Denver International Airport, Highlands Ranch, Littleton, Parker,
Akron, Cope, Last Chance, and Otis
328 PM MDT Thu Mar 23 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM TO NOON MDT
FRIDAY...

The National Weather Service in Denver has issued a Winter
Weather Advisory for snow ans blowing snow, which is in effect
from 3 AM to noon MDT Friday. 

* TIMING...Snow will increase in intensity over the northern 
  mountains after midnight and continue into Friday morning. The 
  heaviest snowfall is likely from late night through mid 
  morning Friday. 

* SNOW ACCUMULATIONS...3 to 6 inches.

* WIND/VISIBILITY...North 20 to 35 mph with gusts to 45 mph.
  Visibilities could be under one quarter of a mile in heavier snow. 

* IMPACTS...Snow, gusty winds and poor visibilities will create 
  hazardous winter driving conditions. Roads will be icy and 
  snow packed. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities...and use caution while
driving.

&&

$$

COZ035-240530-
/O.EXA.KBOU.WW.Y.0015.170324T0600Z-170324T1800Z/
Larimer and Boulder Counties Between 6000 and 9000 Feet-
Including the cities of Estes Park, Glendevey, Nederland, 
and Red Feather Lakes
328 PM MDT Thu Mar 23 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO
NOON MDT FRIDAY...

The National Weather Service in Denver has issued a Winter
Weather Advisory for snow, which is in effect
from midnight tonight to noon MDT Friday. 

* TIMING...Snow will increase in intensity over the northern 
  mountains after midnight and continue into Friday morning. The 
  heaviest snowfall is likely from late night through mid 
  morning Friday. 

* SNOW ACCUMULATIONS...4 to 8 inches.

* WIND/VISIBILITY...North 15 to 30 mph. Visibilities could be 
  under one quarter of a mile in heavier snow. 

* IMPACTS...Snow, gusty winds and poor visibilities will create 
  hazardous winter driving conditions. Roads will be icy and 
  snow packed. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities...and use caution while
driving.

&&

$$

COZ033-240530-
/O.CON.KBOU.WW.Y.0015.170324T0600Z-170324T1800Z/
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
Including the cities of Cameron Pass, 
Laramie and Medicine Bow Mountains, Rabbit Ears Range, 
Rocky Mountain National Park, and Willow Creek Pass
328 PM MDT Thu Mar 23 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT
TONIGHT TO NOON MDT FRIDAY...

* TIMING...Snow will increase in intensity over the northern 
  mountains after midnight and continue into Friday morning. The 
  heaviest snowfall is likely from late night through mid 
  morning Friday. 

* SNOW ACCUMULATIONS...4 to 8 inches mainly on east facing slopes.

* WIND/VISIBILITY...North 15 to 30 mph. Visibilities could be 
  under one quarter of a mile in heavier snow. 

* IMPACTS...Snow, gusty winds and poor visibilities will create 
  hazardous winter driving conditions. Roads will be icy and 
  snow packed. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities...and use caution while
driving.

&&

$$

Area Forecast Discussion
National Weather Service Denver/Boulder CO
405 AM MDT Thu Mar 23 2017

.SHORT TERM...(Today and tonight)
Issued at 323 AM MDT Thu Mar 23 2017

For today, have trended the grids to a little warmer and drier
through 00z. Mdls slower to developing precipitation form the
Front Range Foothills eastward. The flow aloft will transition
from southwesterly to southerly today, with the strongest winds
aloft over the eastern plains. Reference the Fire Weather
discussion below as the Red Flag Warning has been expanded for
this afternoon. Upper low over Nevada at this time, and is progged
to move into the Four Corners region by 00z this evening. Dry
slot ahead of it so no qpf developed in any of the mdls until 00z
over the Urban Corridor and northeast plains. Transition from
abnormally dry conditions to cold and wet will occur this evening.

The mdls intensify a sfc low over southeastern CO from 03-06z this
evening with strong north/northwesterly winds developing across
the cwa from the Urban Corridor eastward across the northeast
plains. Weak mid level qg ascent over northeast CO through 18z
but increases significantly around 00z with developing
cyclogenesis over sern CO. moderate to heavy rainfall over the
northeast plains this evening as this system intensifies. The mdls
all consistent with the sfc and upper low over sern CO at 12z
with a nice fetch of moisture wrapping around the system. The
winds at the sfc and aloft generally north/northwesterly which
will shift the focus for the heaviest snowfall to the Southern
Front Range Foothills and Palmer Ridge late tonight. Snow will
develop in the mountains and foothills this evening, but the
heaviest snowfall is not expected until after 06z so have delayed
the Winter Storm Watch for Zones 36 and 34 until that time.
Confidence in heavy snow for Zone 33 not as high and harder to
justify so have changed the Winter Storm Watch there to a Winter
Weather Advisory. Strong winds with snow developing south and
southeast of Denver as the sfc low intensifies from 06z-12z
tonight. Have opted to go with a Blizzard Watch for zone 41 after
06z and added zones 45 and 46 to the Blizzard Watch after 09z.
Moderate to heavy snowfall expected to develop aoa 5500 feet, with
850-700 mb lyr winds of 50-60 kts by 12z which could impact
Interstate 70 east of Denver to west of Limon and Interstate 25
south of Denver toward Monument. Will keep zone 47 in the High
Wind Watch. Areas in the Denver area south of I70 could see some
light snow developing, but not much north of the interstate
expected.

.LONG TERM...(Friday through Wednesday)
Issued at 323 AM MDT Thu Mar 23 2017

A stg storm system will be over extreme sern Co at 12z Fri and then
will move east into cntrl KS by late aftn.  Stg mid lvl ascent will
be over nern CO in the morning but gradually shift eastward by
midday.  Meanwhile a stg low lvl gradient will be across all of nern
CO in the morning but will weaken by mid to late aftn as the storm
system moves eastward.

Low lvl flow is fcst to be mainly nly on Fri which generally should
keep heavier mainly along and east of I-25 and across the Palmer
Divide.  Buffer soundings show snow levels dropping blo 5500 ft by
12z so will see some accumulation on grassy areas.  Will see heavy
snow over the Palmer Divide which may extend out to the Limon area
as well.  Central and eastern areas of Denver metro could see some
heavier snow through mid morning however confidence isn't high
enough to issue a watch

With 700 mb winds fcst to be in the 60-70 kt range stg winds with
blowing snow will be an issue thru midday so have decided to issue a
blizzard watch for zns 41 and 46. Srn portions of zn 45 could have
some issues as well so may include them too. Will also keep the high
wind watch going for zn 47 which will likely see high winds.

Across the rest of the plains will see a mix of rain and snow
through the aftn.  Winds will be gusty as well with speeds from 25
to 35 mph with gusts up to 50 mph.

In the mtns and srn foothills, if flow stays nly, amounts may end
mainly in the advisory range however will leave watch in place for
zns 34 and 36.

By Friday evening things will calm down as the storm system
continues to move eastward.  On Sat an upper level ridge will
briefly dvlp over the area before another upper level trough moves
across on Sun.  Sat should be dry with warmer temperatures.  On Sun
as the next system moves across will see a good chc of snow in the
mtns.  Over nern CO cross-sections show an increase in moisture
along with some weak upslope flow so will keep in a chc of showers
with cooler temperatures.

On Mon an upper level ridge will rebuild over the area ahead of
another storm system that will develop over the Great Basin.  There
will be some moisture in the mtns so will mention a chc of showers
over the higher terrain.  Over nern CO it will be dry with warmer
temperatures.

By Tue the ECMWF and GFS are in poor agreement.  The GFS digs the
Great Basin upper level low into cntrl AZ while the ECMWF has the
low nr the four corners.  Meanwhile on Wed he GFS has the low over
srn AZ while the ECMWF has it over srn CO.  With so much
disagreement between the two models will just mention a chc of pops
across the area until it becomes more clear how things will play
out.

&&

.AVIATION...(For the 12Z TAFS through 12Z Friday morning)
Issued at 323 AM MDT Thu Mar 23 2017

VFR expected through 00z this evening with gusty south/southwest
winds through that time. Cig will lower dramatically late this
evening as the surface low associated with the storm system starts
to intensify over sern CO. Strong northerly winds will develop
after 03z with scattered rain showers through 06z, then a
rain/snow mix 06-09z with snow developing 09z-12z. ILS
restrictions with cigs 040-050 kft 03z-06z tngt, the MVFR cigs
until 09z, with IFR cigs/vsbys with the transition to
snow/blowing snow by 12z.

&&

.FIRE WEATHER...
Issued at 323 AM MDT Thu Mar 23 2017

Dry slot developing over the northeast plains today with very low
relative humidities and gusty south/southwest winds this afternoon
ahead of the nxt storm system. Have expanded the Red Flag Warning
to also include Fire WX Zones 242, 244, 248, 250 and 251. &&

.BOU WATCHES/WARNINGS/ADVISORIES...
Red Flag Warning from noon today to 6 PM MDT this evening for
COZ216-239>242-244>251.

Winter Storm Watch from late tonight through Friday morning for
COZ034-036.

Winter Weather Advisory from midnight tonight to noon MDT Friday
for COZ033.

Blizzard Watch from late tonight through Friday morning for
COZ041.

Blizzard Watch from late tonight through Friday morning for
COZ045-046.

High Wind Watch from Friday morning through Friday afternoon for
COZ047.

&&

SHORT TERM...Cooper
LONG TERM...RPK
AVIATION...Cooper
FIRE WEATHER...Cooper

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
1105 AM MDT Wed Mar 22 2017

COZ030>051-231715-
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-
1105 AM MDT Wed Mar 22 2017

...Red Flag Warning for critical fire weather conditions Thursday
afternoon for the southern foothills...Palmer Divide and adjacent
plains including Denver and areas east and southeast...
...Rain and snow on the way Thursday night into Friday...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND NORTH CENTRAL
COLORADO.

.DAY ONE...TODAY AND TONIGHT

Today will be warm and breezy in most areas, with low humidity
leading to an elevated fire danger in areas west and southwest of
Denver.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

Strong southwesterly winds combined with low humidity will bring
critical fire weather conditions along the southern foothills,
Palmer Divide and over portions of the northeast plains in the
afternoon. Rain and snow showers will develop in the mountains
Thursday afternoon with a slight chance of some thunderstorms over
the northeast plains, strongest closer to the Kansas border.

Thursday night through Friday, a storm system is expected to
track slowly across Colorado. This system will bring much needed
precipitation to the region. Moderate to heavy snow will be
possible in the Front Range Mountains, Foothills and Palmer
Divide above 6500 feet, with widespread rain or a mix of rain and
snow over the northeast plains. The Front Range Mountains east of
the Continental Divide and higher foothills could see up to a foot
of snowfall by Friday afternoon, with 3 to 6 inches of snow
over the Palmer Divide, and periods of moderate to heavy rainfall
across the northeastern plains.

Precipitation will diminish Friday night with dry and warmer
weather on Saturday. The next system could bring another chance of
precipitation to the region on Sunday, then drier again Sunday
night into Monday.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT.

Schlatter/Kriederman