Winter Storm Warning 6, NWS Denver/Boulder, CO

246 
WWUS45 KBOU 232130
WSWBOU

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

...Strong storm to bring blizzard conditions to parts of 
northeastern Colorado...

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.CON.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
330 PM MDT Thu Mar 23 2017

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

* 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.CON.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
330 PM MDT Thu Mar 23 2017

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

* 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.CON.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
330 PM MDT Thu Mar 23 2017

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

* 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.CON.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
330 PM MDT Thu Mar 23 2017

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

* 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.CON.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
330 PM MDT Thu Mar 23 2017

...WINTER WEATHER ADVISORY REMAINS 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.

&&

$$

COZ033-035-240530-
/O.CON.KBOU.WW.Y.0015.170324T0600Z-170324T1800Z/
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
Larimer and Boulder Counties Between 6000 and 9000 Feet-
Including the cities of Cameron Pass, 
Laramie and Medicine Bow Mountains, Rabbit Ears Range, 
Rocky Mountain National Park, Willow Creek Pass, Estes Park, 
Glendevey, Nederland, and Red Feather Lakes
330 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 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.

&&

$$

267 
WWUS45 KBOU 240543
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver/Boulder CO
1143 PM MDT Thu Mar 23 2017

...Strong storm to bring blizzard conditions to parts of
northeastern Colorado...

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.


COZ033-035-240645-
/O.CAN.KBOU.WW.Y.0015.170324T0600Z-170324T1800Z/
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
Larimer and Boulder Counties Between 6000 and 9000 Feet-
Including the cities of Cameron Pass, 
Laramie and Medicine Bow Mountains, Rabbit Ears Range, 
Rocky Mountain National Park, Willow Creek Pass, Estes Park, 
Glendevey, Nederland, and Red Feather Lakes
1143 PM MDT Thu Mar 23 2017

...WINTER WEATHER ADVISORY IS CANCELLED...

The National Weather Service in Denver has cancelled the Winter
Weather Advisory. 

Light snow is expected overnight with the heavier snow further to
the south, therefore the advisory has been cancelled.

$$

COZ041-241345-
/O.CON.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
1143 PM MDT Thu Mar 23 2017

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MDT FRIDAY...

* 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.

&&

$$

COZ045-046-241345-
/O.CON.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
1143 PM MDT Thu Mar 23 2017

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

* 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.
&&

$$

COZ036-241345-
/O.CON.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
1143 PM MDT Thu Mar 23 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT FRIDAY...

* 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 10 inches over foothills along and
  south of Interstate 70. Snowfall rates around an inch 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.

&&

$$

COZ034-241345-
/O.CON.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
1143 PM MDT Thu Mar 23 2017

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

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

* SNOW ACCUMULATIONS...4 to 7 inches mainly over the eastern
  slopes along and south of the interstate 70 corridor. 

* 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.

&&

$$

COZ039-040-049-241345-
/O.CON.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
1143 PM MDT Thu Mar 23 2017

...WINTER WEATHER ADVISORY REMAINS 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...2 to 6 inches, heaviest south of Interstate
  70. 

* 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.

&&

$$

985 
WWUS45 KBOU 240916
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver/Boulder CO
316 AM MDT Fri Mar 24 2017

...Strong storm to bring blizzard conditions to parts of
northeastern Colorado...

Moderate to heavy snowfall can be expected over the mountains, 
foothills, Palmer Ridge and some adjacent plains through this
morning, heaviest along and south of the I-70 corridor. Very 
strong northerly winds will continue through midday across the 
plains. Blizzard conditions will be possible from the Palmer 
Divide east towards Limon and north across eastern Arapahoe 
County with visibilities near zero at times.

COZ041-241800-
/O.CON.KBOU.BZ.W.0001.000000T0000Z-170324T1800Z/
Elbert/Central and East Douglas Counties Above 6000 Feet-
Including the cities of Castle Rock, Elbert, Fondis, Kiowa, 
and Larkspur
316 AM MDT Fri Mar 24 2017

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY...

* TIMING...Snow and strong winds will continue through the 
  morning hours.

* SNOW ACCUMULATIONS...5 to 10 inches over the Palmer Ridge.
  Snowfall rates of 1 to 2 inches will occur in the heavier bands
  of snow.

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

* IMPACTS...Moderate to 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.

&&

$$

COZ045-046-241800-
/O.CON.KBOU.BZ.W.0001.000000T0000Z-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
316 AM MDT Fri Mar 24 2017

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY...

* TIMING...snow and strong winds will continue through the morning
  hours, with the snow expected to decrease towards noon.

* SNOW ACCUMULATIONS...3 to 7 inches.

* WIND/VISIBILITY...North winds 30 to 45 mph with gusts up to 55
  mph at times through the 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. 
&&

$$

COZ036-241800-
/O.CON.KBOU.WS.W.0006.000000T0000Z-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
316 AM MDT Fri Mar 24 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY...

* TIMING...Snow will continue to spread into the southern front
  range foothills through the morning, then decrease toward
  midday. 

* SNOW ACCUMULATIONS...5 to 10 inches, heaviest south of
  Interstate 70. 

* WIND/VISIBILITY...Northerly winds from 15 to 25 mph with gusts
  to 35 mph are expected. 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.

&&

$$

COZ034-241800-
/O.CON.KBOU.WW.Y.0015.000000T0000Z-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
316 AM MDT Fri Mar 24 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT
TODAY...

* TIMING...Snow will continue through the morning hours but will
  decrease towards midday. The heaviest snowfall will occur along
  east facing slopes.

* SNOW ACCUMULATIONS...4 to 7 inches mainly over the eastern 
  slopes along and south of the interstate 70 corridor. 

* WIND/VISIBILITY...Northerly winds from 15 to 25 mph with gusts
  to 35 mph are expected.

* 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.

&&

$$

COZ039-040-049-241800-
/O.CON.KBOU.WW.Y.0015.000000T0000Z-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
316 AM MDT Fri Mar 24 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT
TODAY...

* TIMING...Bands of snow will continue to develop this morning and
  continue through mid morning. In and around the Denver area the
  heaviest snowfall will occur over southern portions of the metro
  area. from around Boulder north to Longmont lighter 
  precipitation with a mix of rain and snow is expected. 

* SNOW ACCUMULATIONS...2 to 5 inches, mainly south of Interstate 70.
  Little if any snow accumulation is expected from around Boulder
  north to Longmont.

* 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.

&&

$$

508 
WWUS45 KBOU 241223
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver/Boulder CO
623 AM MDT Fri Mar 24 2017


COZ036-241800-
/O.CAN.KBOU.WS.W.0006.000000T0000Z-170324T1800Z/
/O.EXA.KBOU.WW.Y.0015.000000T0000Z-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
623 AM MDT Fri Mar 24 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON MDT TODAY...
...WINTER STORM WARNING IS CANCELLED...

The National Weather Service in Denver has issued a Winter
Weather Advisory for snow and blowing snow, which is in effect 
until noon MDT today. The Winter Storm Warning has been cancelled.

* TIMING...light snow will continue through the mid morning hours
  then decrease toward noon. 

* SNOW ACCUMULATIONS...1 to 3 inches, mainly extreme southern
  jefferson and western douglas counties.

* 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 blowing snow means that 
visibilities will be limited due to strong winds blowing snow 
around. Use caution when traveling...especially in open areas.

&&

$$

COZ034-039-241330-
/O.CAN.KBOU.WW.Y.0015.000000T0000Z-170324T1800Z/
South and Southeast Grand/West Central and Southwest Boulder/
Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield
County-
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, Arvada, Boulder, Golden, 
Lakewood, and Longmont
623 AM MDT Fri Mar 24 2017

...WINTER WEATHER ADVISORY IS CANCELLED...

The National Weather Service in Denver has cancelled the Winter
Weather Advisory. 

The storm has shifted to the south and east with decreasing
snowfall over the advisory area. heavy snowfall is no longer
expected. 

$$

COZ041-241800-
/O.CON.KBOU.BZ.W.0001.000000T0000Z-170324T1800Z/
Elbert/Central and East Douglas Counties Above 6000 Feet-
Including the cities of Castle Rock, Elbert, Fondis, Kiowa, 
and Larkspur
623 AM MDT Fri Mar 24 2017

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY...

* TIMING...Snow and strong winds will continue through the 
  morning hours. 

* SNOW ACCUMULATIONS...5 to 10 inches over the Palmer Ridge. 
  Snowfall rates of 1 to 2 inches will occur in the heavier 
  bands of snow. 

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

* IMPACTS...Moderate to 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.

&&

$$

COZ045-046-241800-
/O.CON.KBOU.BZ.W.0001.000000T0000Z-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
623 AM MDT Fri Mar 24 2017

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY...

* TIMING...snow and strong winds will continue through the 
  morning hours, with the snow expected to decrease towards 
  noon. 

* SNOW ACCUMULATIONS...3 to 7 inches.

* WIND/VISIBILITY...North winds 30 to 45 mph with gusts up to 55 
  mph at times through the 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. 
&&

$$

COZ040-049-241800-
/O.CON.KBOU.WW.Y.0015.000000T0000Z-170324T1800Z/
North Douglas County Below 6000 Feet/Denver/West Adams and
Arapahoe Counties/East Broomfield County-Washington County-
Including the cities of Aurora, Brighton, City of Denver, 
Denver International Airport, Highlands Ranch, Littleton, Parker,
Akron, Cope, Last Chance, and Otis
623 AM MDT Fri Mar 24 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT
TODAY...

* TIMING...Bands of light snow will continue mid morning. In and
  around the Denver area the snow will be confined to extreme
  eastern and southern parts of the metro area. 

* SNOW ACCUMULATIONS...1 to 4 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.

&&

$$

Area Forecast Discussion
National Weather Service Denver/Boulder CO
257 PM MDT Thu Mar 23 2017

.SHORT TERM...(This evening through Friday)
Issued at 232 PM MDT Thu Mar 23 2017

Still a thunderstorm threat over the far northeast corner through
this evening with southeast winds bringing in higher dewpoint air
in the mid 40s. Surface capes so potential up to 1500j/kg.

Main concern will be incoming storm system which will move across
Colorado tonight and Friday. Main impact areas will be over
Southern Front Range foothills and out over the Palmer Divide
where the higher elevations will be more snow than rain. Surface
cold front over Wyoming will drop into Eastern Colorado this
evening with increasing northerly winds. There is huge qg numbers
with this incoming system with intensification expected later
tonight and early Friday. The focus still appears to be across
Douglas, Elbert and Northern lincoln counties and also eastern
portions of adams and arapahoe counties with biggest threat for
blizzard conditions with gusts in the 30-45kt range. Washington
county is on the edge but will go with an advisory there,
especially over southern portions of Washington county.

Further West over the Denver area, expect some snowfall to impact
morning rush hour with over all amounts of 3-6 inches, especially
east and south of Denver. Much of the far northeast plains will
likely remain rain. Overall low to medium confidence on the
rain/snow issues on the plains and higher confidence on the Palmer
Divide. Rain and snow will be rapidly decreasing Friday afternoon.

.LONG TERM...(Friday night through Thursday)
Issued at 232 PM MDT Thu Mar 23 2017

Active weather pattern is expected through the period with a series
of storm systems moving across the central and southern Rockies.
Temperatures Saturday morning are forecasted to drop below freezing
across most plains locations...due to light winds...drier
air...clearing skies and some snow cover. Warmer and drier weather
is expected on Saturday as upper level high pressure builds over the
Rocky Mountain Region. Models show an upper level trough of low
pressure moving across the state Saturday night into Sunday
...with an associated cold front sweeping across the northeastern
plains Sunday morning. This system should bring another round of
snow to the mountains...with breezy conditions a good chance for
precipitation across the plains. Right now models are indicating it
will be too warm for snow in Denver...however higher elevations
across the foothills and Palmer Divide could see some accumulation.
Warmer and drier weather should return to north central and
northeastern Colorado on Monday as upper level high pressure
rebuilds over the area.

The next storm system begins to impact the region on
Wednesday...however not sure to what extent due to model differences
and run to run inconsistencies. The 12z GFS shows the upper low
tracking across southern Arizona and New Mexico with most of the
moisture and energy to the south of our CWA. However...due to the
size of the system...the GFS does show some moisture and
precipitation wrapping back into northeastern Colorado Wednesday
night and Thursday. The latest 12z ECMWF has trended further to the
south and has the upper low centered over southern New Mexico by
noon Wednesday. This is much drier than previous solutions and
leaves much of our CWA dry. Due to the uncertainty...have lowered
forecast builder pops some in days six through eight.

&&

.AVIATION...(For the 18Z TAFS through 18Z Friday afternoon)
Issued at 232 PM MDT Thu Mar 23 2017

Gusty southwest winds will shift northwest and northerly as the
cold front sweeps down into the local airports between 03-04z.
Precip will rapidly develop behind the front towards midnight and
then mix/change to snow later tnt. Could be a wind of heavier
snowfall through mid morning hours with heavier snowfall rates up
to 2 inches, especially near KDEN.

&&

.FIRE WEATHER...
Issued at 232 PM MDT Thu Mar 23 2017

Red flag conditions continuing this afternoon on the plains, but
humidity/winds not quite meeting criteria over the far ne corner
given influx of higher moisture. Much cooler and wetter on friday
as fire concerns will be going away. Still windy on Friday but at
least wetter.

&&

.BOU WATCHES/WARNINGS/ADVISORIES...
Red Flag Warning until 6 PM MDT this evening for COZ216-238>251.

Winter Weather Advisory from midnight tonight to noon MDT Friday
for COZ033-035.

Winter Weather Advisory from 3 AM to noon MDT Friday for COZ034-
039-040-049.

Winter Storm Warning from midnight tonight to noon MDT Friday
for COZ036.

Blizzard Warning from midnight tonight to noon MDT Friday for
COZ041.

Blizzard Warning from 3 AM to noon MDT Friday for COZ045-046.

High Wind Warning from 3 AM to 6 PM MDT Friday for COZ047.

&&

SHORT TERM...Entrekin
LONG TERM...Kalina
AVIATION...Entrekin
FIRE WEATHER...Entrekin

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
1111 AM MDT Thu Mar 23 2017

COZ030>051-241715-
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-
1111 AM MDT Thu Mar 23 2017

......Red Flag Warning for critical fire weather conditions this
afternoon for the southern foothills and much of the Northeast
Plains of Colorado...

...Potential for Blizzard conditions on the Palmer Divide and
portions of the Northeast plains for later tonight and Friday
morning.

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

.DAY ONE...TODAY AND TONIGHT

Strong southwesterly winds combined with low humidity will bring
critical fire weather conditions along the southern foothills and
northeast plains this afternoon.  Rain and snow showers will
develop in the mountains late this afternoon.

There is the potential for an isolated severe thunderstorm over
the far northeast plains, mainly over Phillips and Sedgwick
counties later this afternoon and evening. Damaging winds and
hail would be the main impacts.

For tonight, 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 mountains
foothills along and south of the Interstate 70 Corridor and
over the Palmer Divide above 5500 feet, with widespread rain or a
mix of rain and snow over the northeast plains. The combination
of strong winds and snow could produce blizzard conditions late
tonight I-25 south of Denver toward Monument and I-70 east of
Denver to just west of Limon.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

On Friday a storm system will move slowly east of Colorado. This
system will bring snow to the mountains, foothills and across
portions of the adjacent plains. In addition strong winds will
occur over the plains of northeast Colorado which may create
blizzard conditions over the Palmer Divide eastward towards the
Limon area.

Additional accumulations will range from 4 to 8 inches in the
mountains and foothills with up to 6 inches over the Palmer
Divide. Across the adjacent plains 2 to 4 inches may fall around
the Denver area with up to 6 inches near Limon. Elsewhere snow
amounts will be under 2 inches. North winds of 25 to 40 mph with
gusts up to 55 mph will occur over the plains with gusts up to 65
mph over the Palmer Divide towards limon.

The snow and wind should gradually diminish through the afternoon
hours from west to east.

Dry and warmer weather will return on Saturday. The next weather 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 but snow
and wind reports would be greatly appreciated tonight and Friday.