Alert archive / Colorado / Wind Chill Advisories in 2021

Wind Chill Advisory 2, NWS Denver/Boulder, CO

February 11, 202116 counties in Colorado

NWS Denver/Boulder, CO issued this wind chill advisory at Feb 11, 2021, 1:45 PM MST for 16 counties in Colorado. It took effect at Feb 12, 2021, 12:00 AM MST. It was in force for 3 days.

The area

The counties it named.

The facts

Issued
Feb 11, 2021, 1:45 PM MST (20:45 UTC)
In effect from
Feb 12, 2021, 12:00 AM MST
Expired
Feb 15, 2021, 11:00 AM MST
In force
3 days
Issued by
NWS Denver/Boulder, CO

Counties Adams County, CO, Arapahoe County, CO, Boulder County, CO, Broomfield County, CO, Denver County, CO, Douglas County, CO, Elbert County, CO, Jefferson County, CO, Larimer County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO

The radar

The Denver radar (KFTG), 42 km from the middle of the area, began a volume at 20:45 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 8.8 hours before the alert went out and 80 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Denver, CO at 12:00Z on 2021-02-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2021-02-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 86 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1436 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
86 m²/s²
0-3 km storm-relative helicity
269 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

429 
WWUS45 KBOU 112045
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver CO
145 PM MST Thu Feb 11 2021

COZ042-044-046-048>051-120600-
/O.CAN.KBOU.WC.Y.0001.210213T0700Z-210213T2300Z/
/O.NEW.KBOU.WC.Y.0002.210212T0700Z-210212T2300Z/
Northeast Weld County-Morgan County-North and Northeast Elbert
County Below 6000 Feet/North Lincoln County-Logan County-
Washington County-Sedgwick County-Phillips County-
Including the cities of Wiggins, Fort Morgan, Hugo, Otis,
Julesburg, Sedgwick, Briggsdale, Sterling, Pawnee Buttes, Cope,
Akron, Raymer, Amherst, Ovid, Matheson, Peetz, Grover, Agate,
Haxtun, Last Chance, Goodrich, Stoneham, Crook, Holyoke, Brush,
Limon, and Merino
145 PM MST Thu Feb 11 2021

...WIND CHILL ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 4 PM MST 
FRIDAY...


* WHAT...Very cold wind chills expected. Wind chills as low as 20 
  below zero.

* WHERE...Portions of east central and northeast Colorado.

* WHEN...From midnight tonight through 4 pm MST on Friday

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 30 minutes. Frostbite and 
  hypothermia are possible if precautions are not taken.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The combination of wind and cold temperatures will create 
dangerously low wind chill values. If you go outside, cover all 
parts of your body, especially your head, face, and hands.

Pets are also susceptible to the extremely cold weather. Keep pets 
indoors as much as possible. If this is not possible, make sure 
outdoor pets have a warm, dry shelter, and provide sufficient food 
and fresh water.

&&

$$

COZ031-120600-
/O.CON.KBOU.WW.Y.0010.210212T0000Z-210213T1200Z/
West Jackson and West Grand Counties Above 9000 Feet-
Including the cities of Mt Zirkel
145 PM MST Thu Feb 11 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS 
AFTERNOON TO 5 AM MST SATURDAY...

* WHAT...Snow expected. Total snow accumulations between 10 to 18 
  inches. Winds gusting as high as 35 mph.

* WHERE...Rabbit Ears Pass.

* WHEN...From 5 PM this afternoon to 5 AM MST Saturday.

* IMPACTS...Travel could be very difficult to impossible. Roads will 
  become slippery in spots, especially through mountain passes. 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

&&

$$

COZ033-120600-
/O.CON.KBOU.WW.Y.0010.210212T0000Z-210213T1200Z/
South and East Jackson/Larimer/North and Northeast
Grand/Northwest Boulder Counties Above 9000 Feet-
Including the cities of Laramie and Medicine Bow Mountains,
Rabbit Ears Range, Cameron Pass, Rocky Mountain National Park,
and Willow Creek Pass
145 PM MST Thu Feb 11 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS 
AFTERNOON TO 5 AM MST SATURDAY...

* WHAT...Snow expected. Total snow accumulations between 6 to 12 
  inches. Winds gusting as high as 40 mph.

* WHERE...Rocky Mountain National Park and the Medicine Bow Range.

* WHEN...From 5 PM this afternoon to 5 AM MST Saturday.

* IMPACTS...Travel could be very difficult. Snow covered roads will 
  make travel hazardous.

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

Slow down and use caution while traveling. Allow extra time to reach 
your destination.

&&

$$

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

Entrekin
19 follow-up statements
835 
WWUS45 KBOU 120625
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver CO
1125 PM MST Thu Feb 11 2021

COZ031-121300-
/O.CON.KBOU.WW.Y.0010.000000T0000Z-210213T1200Z/
West Jackson and West Grand Counties Above 9000 Feet-
Including the cities of Mt Zirkel
1125 PM MST Thu Feb 11 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST 
SATURDAY...

* WHAT...Snow ongoing. Total snow accumulations between 10 to 18 
  inches. Winds gusting as high as 35 mph.

* WHERE...Rabbit Ears Pass.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Snow covered roads will make travel difficult at times. 
  Use caution when traveling, especially over mountain passes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

COZ033-121300-
/O.CON.KBOU.WW.Y.0010.000000T0000Z-210213T1200Z/
South and East Jackson/Larimer/North and Northeast
Grand/Northwest Boulder Counties Above 9000 Feet-
Including the cities of Laramie and Medicine Bow Mountains,
Rabbit Ears Range, Cameron Pass, Rocky Mountain National Park,
and Willow Creek Pass
1125 PM MST Thu Feb 11 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST 
SATURDAY...

* WHAT...Snow ongoing. Total snow accumulations between 6 to 12 
  inches. Winds gusting as high as 40 mph.

* WHERE...Rocky Mountain National Park and the Medicine Bow Range.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Snow covered roads will make travel difficult at times. 
  Use caution when traveling, especially over mountain passes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

COZ042-044-046-048>051-121300-
/O.CON.KBOU.WC.Y.0002.210212T0700Z-210212T2300Z/
Northeast Weld County-Morgan County-North and Northeast Elbert
County Below 6000 Feet/North Lincoln County-Logan County-
Washington County-Sedgwick County-Phillips County-
Including the cities of Wiggins, Fort Morgan, Hugo, Otis,
Julesburg, Sedgwick, Briggsdale, Sterling, Pawnee Buttes, Cope,
Akron, Raymer, Amherst, Ovid, Matheson, Peetz, Grover, Agate,
Haxtun, Last Chance, Goodrich, Stoneham, Crook, Holyoke, Brush,
Limon, and Merino
1125 PM MST Thu Feb 11 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 4 PM MST FRIDAY...

* WHAT...Very cold wind chills expected. Wind chills as low as 25 
  below zero.

* WHERE...Portions of east central and northeast Colorado.

* WHEN...Until 4 PM MST Friday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 30 minutes. Frostbite and 
  hypothermia are possible if precautions are not taken.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The combination of wind and cold temperatures will create 
dangerously low wind chill values. If you go outside, cover all 
parts of your body, especially your head, face, and hands.

Pets are also susceptible to the extremely cold weather. Keep pets 
indoors as much as possible. If this is not possible, make sure 
outdoor pets have a warm, dry shelter, and provide sufficient food 
and fresh water.

&&

$$

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

Hiris
328 
WWUS45 KBOU 121040
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver CO
340 AM MST Fri Feb 12 2021

COZ042-044-046-048>051-122000-
/O.EXT.KBOU.WC.Y.0002.000000T0000Z-210215T1800Z/
Northeast Weld County-Morgan County-North and Northeast Elbert
County Below 6000 Feet/North Lincoln County-Logan County-
Washington County-Sedgwick County-Phillips County-
Including the cities of Wiggins, Fort Morgan, Hugo, Otis,
Julesburg, Sedgwick, Briggsdale, Sterling, Pawnee Buttes, Cope,
Akron, Raymer, Amherst, Ovid, Matheson, Peetz, Grover, Agate,
Haxtun, Last Chance, Goodrich, Stoneham, Crook, Holyoke, Brush,
Limon, and Merino
340 AM MST Fri Feb 12 2021

...WIND CHILL ADVISORY NOW IN EFFECT UNTIL 11 AM MST MONDAY...

* WHAT...Very cold wind chills expected. Wind chills as low as 25 
  below zero.

* WHERE...Portions of east central and northeast Colorado.

* WHEN...Until 11 AM MST Monday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 30 minutes. Frostbite and 
  hypothermia are possible if precautions are not taken.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The combination of wind and cold temperatures will create 
dangerously low wind chill values. If you go outside, cover all 
parts of your body, especially your head, face, and hands.

Pets are also susceptible to the extremely cold weather. Keep pets 
indoors as much as possible. If this is not possible, make sure 
outdoor pets have a warm, dry shelter, and provide sufficient food 
and fresh water.

&&

$$

COZ031-122000-
/O.CON.KBOU.WW.Y.0010.000000T0000Z-210213T1200Z/
West Jackson and West Grand Counties Above 9000 Feet-
Including the cities of Mt Zirkel
340 AM MST Fri Feb 12 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST 
SATURDAY...

* WHAT...Snow ongoing. Total snow accumulations between 10 to 18 
  inches. Winds gusting as high as 35 mph.

* WHERE...Rabbit Ears Pass.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Snow covered roads will make travel difficult at times. 
  Use caution when traveling, especially over mountain passes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

COZ033-122000-
/O.CON.KBOU.WW.Y.0010.000000T0000Z-210213T1200Z/
South and East Jackson/Larimer/North and Northeast
Grand/Northwest Boulder Counties Above 9000 Feet-
Including the cities of Laramie and Medicine Bow Mountains,
Rabbit Ears Range, Cameron Pass, Rocky Mountain National Park,
and Willow Creek Pass
340 AM MST Fri Feb 12 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST 
SATURDAY...

* WHAT...Snow ongoing. Total snow accumulations between 6 to 12 
  inches. Winds gusting as high as 40 mph.

* WHERE...Rocky Mountain National Park and the Medicine Bow Range.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Snow covered roads will make travel difficult at times. 
  Use caution when traveling, especially over mountain passes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

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

Hiris
326 
WWUS45 KBOU 121822
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver CO
1122 AM MST Fri Feb 12 2021

COZ031-130700-
/O.CON.KBOU.WW.Y.0010.000000T0000Z-210213T1200Z/
West Jackson and West Grand Counties Above 9000 Feet-
Including the cities of Mt Zirkel
1122 AM MST Fri Feb 12 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST 
SATURDAY...

* WHAT...Snow ongoing. Total snow accumulations between 10 to 18 
  inches. Winds gusting as high as 35 mph.

* WHERE...Rabbit Ears Pass.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Travel could be very difficult to impossible. Roads will 
  become slippery in spots, especially through mountain passes. 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

&&

$$

COZ033-130700-
/O.CON.KBOU.WW.Y.0010.000000T0000Z-210213T1200Z/
South and East Jackson/Larimer/North and Northeast
Grand/Northwest Boulder Counties Above 9000 Feet-
Including the cities of Laramie and Medicine Bow Mountains,
Rabbit Ears Range, Cameron Pass, Rocky Mountain National Park,
and Willow Creek Pass
1122 AM MST Fri Feb 12 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST 
SATURDAY...

* WHAT...Snow ongoing. Total snow accumulations between 6 to 12 
  inches. Winds gusting as high as 40 mph.

* WHERE...Rocky Mountain National Park and the Medicine Bow Range.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Travel could be very difficult. Snow covered roads will 
  make travel hazardous.

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

Slow down and use caution while traveling. Allow extra time to reach 
your destination.

&&

$$

COZ042-044-046-048>051-130700-
/O.CON.KBOU.WC.Y.0002.000000T0000Z-210215T1800Z/
Northeast Weld County-Morgan County-North and Northeast Elbert
County Below 6000 Feet/North Lincoln County-Logan County-
Washington County-Sedgwick County-Phillips County-
Including the cities of Wiggins, Fort Morgan, Hugo, Otis,
Julesburg, Sedgwick, Briggsdale, Sterling, Pawnee Buttes, Cope,
Akron, Raymer, Amherst, Ovid, Matheson, Peetz, Grover, Agate,
Haxtun, Last Chance, Goodrich, Stoneham, Crook, Holyoke, Brush,
Limon, and Merino
1122 AM MST Fri Feb 12 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST MONDAY...

* WHAT...Very cold wind chills expected. Wind chills as low as 25 
  below zero.

* WHERE...Portions of east central and northeast Colorado.

* WHEN...Until 11 AM MST Monday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 10 minutes. Frostbite and 
  hypothermia are possible if precautions are not taken.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The combination of wind and cold temperatures will create 
dangerously low wind chill values. If you go outside, cover all 
parts of your body, especially your head, face, and hands.

Pets are also susceptible to the extremely cold weather. Keep pets 
indoors as much as possible. If this is not possible, make sure 
outdoor pets have a warm, dry shelter, and provide sufficient food 
and fresh water.

&&

$$

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

Cooper
654 
WWUS45 KBOU 130025
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver CO
525 PM MST Fri Feb 12 2021

COZ047-130830-
/O.EXA.KBOU.WC.Y.0002.000000T0000Z-210215T1800Z/
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Including the cities of Forder, Karval, Kutch, and Punkin Center
525 PM MST Fri Feb 12 2021

...WIND CHILL ADVISORY IN EFFECT UNTIL 11 AM MST MONDAY...

* WHAT...Very cold wind chills ongoing. Wind chills as low as 25 
  below zero.

* WHERE...Southern Lincoln County.

* WHEN...Until 11 AM MST Monday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 10 minutes. Frostbite and 
  hypothermia are possible if precautions are not taken.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The combination of wind and cold temperatures will create 
dangerously low wind chill values. If you go outside, cover all 
parts of your body, especially your head, face, and hands.

Pets are also susceptible to the extremely cold weather. Keep pets 
indoors as much as possible. If this is not possible, make sure 
outdoor pets have a warm, dry shelter, and provide sufficient food 
and fresh water.

&&

$$

COZ031-130830-
/O.CON.KBOU.WW.Y.0010.000000T0000Z-210213T1200Z/
West Jackson and West Grand Counties Above 9000 Feet-
Including the cities of Mt Zirkel
525 PM MST Fri Feb 12 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST 
SATURDAY...

* WHAT...Snow ongoing. Total snow accumulations between 10 to 18 
  inches. Winds gusting as high as 35 mph.

* WHERE...Rabbit Ears Pass.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Travel could be very difficult. Roads will become 
  slippery in spots, especially through mountain passes. 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

&&

$$

COZ033-130830-
/O.CON.KBOU.WW.Y.0010.000000T0000Z-210213T1200Z/
South and East Jackson/Larimer/North and Northeast
Grand/Northwest Boulder Counties Above 9000 Feet-
Including the cities of Laramie and Medicine Bow Mountains,
Rabbit Ears Range, Cameron Pass, Rocky Mountain National Park,
and Willow Creek Pass
525 PM MST Fri Feb 12 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST 
SATURDAY...

* WHAT...Snow ongoing. Total snow accumulations between 6 to 12 
  inches. Winds gusting as high as 40 mph.

* WHERE...Rocky Mountain National Park and the Medicine Bow Range.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Plan on slippery road conditions. Snow covered roads 
  will make travel hazardous.

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

Slow down and use caution while traveling. Allow extra time to reach 
your destination.

&&

$$

COZ042-044-046-048>051-130830-
/O.CON.KBOU.WC.Y.0002.000000T0000Z-210215T1800Z/
Northeast Weld County-Morgan County-North and Northeast Elbert
County Below 6000 Feet/North Lincoln County-Logan County-
Washington County-Sedgwick County-Phillips County-
Including the cities of Wiggins, Fort Morgan, Hugo, Otis,
Julesburg, Sedgwick, Briggsdale, Sterling, Pawnee Buttes, Cope,
Akron, Raymer, Amherst, Ovid, Matheson, Peetz, Grover, Agate,
Haxtun, Last Chance, Goodrich, Stoneham, Crook, Holyoke, Brush,
Limon, and Merino
525 PM MST Fri Feb 12 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST MONDAY...

* WHAT...Very cold wind chills expected. Wind chills as low as 25 
  below zero.

* WHERE...Portions of east central and northeast Colorado.

* WHEN...Until 11 AM MST Monday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 10 minutes. Frostbite and 
  hypothermia are possible if precautions are not taken.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The combination of wind and cold temperatures will create 
dangerously low wind chill values. If you go outside, cover all 
parts of your body, especially your head, face, and hands.

Pets are also susceptible to the extremely cold weather. Keep pets 
indoors as much as possible. If this is not possible, make sure 
outdoor pets have a warm, dry shelter, and provide sufficient food 
and fresh water.

&&

$$

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

RPK
522 
WWUS45 KBOU 130340
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver CO
840 PM MST Fri Feb 12 2021

COZ031-131145-
/O.CON.KBOU.WW.Y.0010.000000T0000Z-210213T1200Z/
West Jackson and West Grand Counties Above 9000 Feet-
Including the cities of Mt Zirkel
840 PM MST Fri Feb 12 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST 
SATURDAY...

* WHAT...Snow ongoing. Total snow accumulations between 10 to 18 
  inches. Winds gusting as high as 35 mph.

* WHERE...Rabbit Ears Pass.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Plan on slippery road conditions. Roads will become 
  slippery in spots, especially through mountain passes. 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

&&

$$

COZ033-131145-
/O.CON.KBOU.WW.Y.0010.000000T0000Z-210213T1200Z/
South and East Jackson/Larimer/North and Northeast
Grand/Northwest Boulder Counties Above 9000 Feet-
Including the cities of Laramie and Medicine Bow Mountains,
Rabbit Ears Range, Cameron Pass, Rocky Mountain National Park,
and Willow Creek Pass
840 PM MST Fri Feb 12 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST 
SATURDAY...

* WHAT...Snow ongoing. Total snow accumulations between 6 to 12 
  inches. Winds gusting as high as 40 mph.

* WHERE...Rocky Mountain National Park and the Medicine Bow Range.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Plan on slippery road conditions. Snow covered roads 
  will make travel hazardous.

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

Slow down and use caution while traveling. Allow extra time to reach 
your destination.

&&

$$

COZ042-044-046>051-131145-
/O.CON.KBOU.WC.Y.0002.000000T0000Z-210215T1800Z/
Northeast Weld County-Morgan County-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-
Including the cities of Wiggins, Fort Morgan, Hugo, Forder,
Julesburg, Sedgwick, Briggsdale, Sterling, Pawnee Buttes, Punkin
Center, Akron, Raymer, Amherst, Ovid, Matheson, Peetz, Grover,
Agate, Kutch, Haxtun, Last Chance, Goodrich, Stoneham, Karval,
Cope, Otis, Crook, Holyoke, Brush, Limon, and Merino
840 PM MST Fri Feb 12 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST MONDAY...

* WHAT...Very cold wind chills ongoing. Wind chills as low as 40 
  below zero.

* WHERE...Portions of east central and northeast Colorado.

* WHEN...Until 11 AM MST Monday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 10 minutes. Frostbite and 
  hypothermia are possible if precautions are not taken.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The combination of wind and cold temperatures will create 
dangerously low wind chill values. If you go outside, cover all 
parts of your body, especially your head, face, and hands.

Pets are also susceptible to the extremely cold weather. Keep pets 
indoors as much as possible. If this is not possible, make sure 
outdoor pets have a warm, dry shelter, and provide sufficient food 
and fresh water.

&&

$$

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

RPK
431 
WWUS45 KBOU 130346
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver CO
846 PM MST Fri Feb 12 2021

COZ042-044-046>051-131200-
/O.NEW.KBOU.WW.Y.0011.210214T0000Z-210214T1800Z/
/O.CON.KBOU.WC.Y.0002.000000T0000Z-210215T1800Z/
Northeast Weld County-Morgan County-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-
Including the cities of Wiggins, Fort Morgan, Hugo, Forder,
Julesburg, Sedgwick, Briggsdale, Sterling, Pawnee Buttes, Punkin
Center, Akron, Raymer, Amherst, Ovid, Matheson, Peetz, Grover,
Agate, Kutch, Haxtun, Last Chance, Goodrich, Stoneham, Karval,
Cope, Otis, Crook, Holyoke, Brush, Limon, and Merino
846 PM MST Fri Feb 12 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST MONDAY...
...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM SATURDAY TO 11 AM MST 
SUNDAY...

* WHAT...Very cold wind chills ongoing. Wind chills as low as 25 
  below zero.  Snowfall accumulations of 3 to 6 inches.

* WHERE...Portions of east central and northeast Colorado.

* WHEN...For the Winter Weather Advisory, from 5 PM Saturday to 11 
  AM MST Sunday. For the Wind Chill Advisory, until 11 AM MST Monday.

* IMPACTS...Plan on slippery road conditions. The dangerously cold 
  wind chills could cause frostbite on exposed skin in as little as 
  10 minutes. Roads will likely become slick and hazardous. 
  Frostbite and hypothermia are possible if precautions are not 
  taken.

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

The combination of wind and cold temperatures will create 
dangerously low wind chill values. If you go outside, cover all 
parts of your body, especially your head, face, and hands.

Pets are also susceptible to the extremely cold weather. Keep pets 
indoors as much as possible. If this is not possible, make sure 
outdoor pets have a warm, dry shelter, and provide sufficient food 
and fresh water.

&&

$$

COZ038>041-043-045-131200-
/O.NEW.KBOU.WW.Y.0011.210214T0000Z-210214T1800Z/
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-Central and South Weld County-Central
and East Adams and Arapahoe Counties-
Including the cities of Elbert, Roggen, Arvada, Byers, Larkspur,
Leader, Boulder, City of Denver, Aurora, Littleton, Brighton,
Highlands Ranch, Fort Lupton, Loveland, Kiowa, Eaton, Deer Trail,
Longmont, Fondis, Denver International Airport, Golden, Parker,
Castle Rock, Lakewood, Fort Collins, Greeley, Bennett, Nunn, and
Hereford
846 PM MST Fri Feb 12 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM SATURDAY TO 11 AM MST 
SUNDAY...

* WHAT...Snow expected. Total snow accumulations between 3 to 6 
  inches.

* WHERE...Portions of north central and northeast Colorado.

* WHEN...From 5 PM Saturday to 11 AM MST Sunday.

* IMPACTS...Plan on slippery road conditions. Roads will likely 
  become slick and hazardous.

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

&&

$$

COZ031-131200-
/O.CON.KBOU.WW.Y.0010.000000T0000Z-210213T1200Z/
West Jackson and West Grand Counties Above 9000 Feet-
Including the cities of Mt Zirkel
846 PM MST Fri Feb 12 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST 
SATURDAY...

* WHAT...Snow ongoing. Additional snow accumulations between 2 to 4 
  inches. Winds gusting as high as 35 mph.

* WHERE...Rabbit Ears Pass.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Snow covered roads will make travel difficult at times. 
  Use caution when traveling, especially over mountain passes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

COZ033-131200-
/O.CON.KBOU.WW.Y.0010.000000T0000Z-210213T1200Z/
South and East Jackson/Larimer/North and Northeast
Grand/Northwest Boulder Counties Above 9000 Feet-
Including the cities of Laramie and Medicine Bow Mountains,
Rabbit Ears Range, Cameron Pass, Rocky Mountain National Park,
and Willow Creek Pass
846 PM MST Fri Feb 12 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST 
SATURDAY...

* WHAT...Snow ongoing. Additional snow accumulations between 2 to 4 
  inches. Winds gusting as high as 40 mph.

* WHERE...Rocky Mountain National Park and the Medicine Bow Range.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Snow covered roads will make travel difficult at times. 
  Use caution when traveling, especially over mountain passes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

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

RPK
121 
WWUS45 KBOU 131225
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver/Boulder CO
525 AM MST Sat Feb 13 2021

COZ031-033-131330-
/O.EXP.KBOU.WW.Y.0010.000000T0000Z-210213T1200Z/
West Jackson and West Grand Counties Above 9000 Feet-
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
Including Mt Zirkel, Cameron Pass, 
Laramie and Medicine Bow Mountains, Rabbit Ears Range, 
Rocky Mountain National Park, and Willow Creek Pass
525 AM MST Sat Feb 13 2021

...WINTER WEATHER ADVISORY HAS EXPIRED...

Snow has decreased for the morning, but it will increase again
this afternoon. Most of the northern Colorado mountains received 
5 to 15 inches of snow in the last 24 hours, with even heavier
amounts in the backcountry north of Rabbit Ears Pass. Drivers should
still check the latest road conditions, and backcountry travelers
should check the avalanche forecast before heading out.

$$

COZ042-044-046>051-132030-
/O.CON.KBOU.WC.Y.0002.000000T0000Z-210215T1800Z/
/O.CON.KBOU.WW.Y.0011.210214T0000Z-210214T1800Z/
Northeast Weld County-Morgan County-
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-
Including Briggsdale, Grover, Pawnee Buttes, Raymer, Stoneham, 
Brush, Fort Morgan, Goodrich, Wiggins, Agate, Hugo, Limon, 
Matheson, Forder, Karval, Kutch, Punkin Center, Crook, Merino, 
Sterling, Peetz, Akron, Cope, Last Chance, Otis, Julesburg, Ovid,
Sedgwick, Amherst, Haxtun, and Holyoke
525 AM MST Sat Feb 13 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST MONDAY...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 11 AM MST SUNDAY...

* WHAT...Very cold wind chills, as low as 20 below zero today and
  30 below zero on Sunday. Total snow accumulations tonight and
  Sunday morning of 4 to 6 inches.

* WHERE...The northeast and east central Colorado plains.

* WHEN...For the Wind Chill Advisory, until 11 AM MST Monday. 
  For the Winter Weather Advisory, from 5 PM this afternoon to 
  11 AM MST Sunday.

* IMPACTS...Plan on slippery road conditions. The dangerously 
  cold wind chills could cause frostbite on exposed skin in as 
  little as 10 minutes.

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

The combination of wind and cold temperatures will create
dangerously low wind chill values. If you go outside, cover all
parts of your body, especially your head, face, and hands.

Pets are also susceptible to the extremely cold weather. Keep
pets indoors as much as possible. If this is not possible, make
sure outdoor pets have a warm, dry shelter, and provide
sufficient food and fresh water.

&&

$$

COZ038>041-043-045-132030-
/O.CON.KBOU.WW.Y.0011.210214T0000Z-210214T1800Z/
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-
Central and South Weld County-
Central and East Adams and Arapahoe Counties-
Including Fort Collins, Hereford, Loveland, Nunn, Arvada, 
Boulder, Golden, Lakewood, Longmont, Aurora, Brighton, 
City of Denver, Denver International Airport, Highlands Ranch, 
Littleton, Parker, Castle Rock, Elbert, Fondis, Kiowa, Larkspur, 
Eaton, Fort Lupton, Greeley, Roggen, Bennett, Byers, Deer Trail, 
and Leader
525 AM MST Sat Feb 13 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 11 AM MST SUNDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 5 
  inches.

* WHERE...The Front Range urban areas from Fort Collins to Denver
  and Castle Rock.

* WHEN...From 5 PM this afternoon to 11 AM MST Sunday.

* IMPACTS...Plan on slippery road conditions. The cold wind 
  chills as low as 25 below zero could cause frostbite on 
  exposed skin in as little as 30 minutes.

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

&&

$$

Gimmestad/Meier
702 
WWUS45 KBOU 131414
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver CO
714 AM MST Sat Feb 13 2021

COZ042-044-046>051-132215-
/O.CON.KBOU.WC.Y.0002.000000T0000Z-210215T1800Z/
/O.CON.KBOU.WW.Y.0011.210214T0000Z-210214T1800Z/
Northeast Weld County-Morgan County-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-
Including the cities of Wiggins, Fort Morgan, Hugo, Forder,
Julesburg, Sedgwick, Briggsdale, Sterling, Pawnee Buttes, Punkin
Center, Akron, Raymer, Amherst, Ovid, Matheson, Peetz, Grover,
Agate, Kutch, Haxtun, Last Chance, Goodrich, Stoneham, Karval,
Cope, Otis, Crook, Holyoke, Brush, Limon, and Merino
714 AM MST Sat Feb 13 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST MONDAY...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS 
AFTERNOON TO 11 AM MST SUNDAY...

* WHAT...Very cold wind chills ongoing. Wind chills as low as 25 
  below zero.  Snowfall accumulations of 3 to 6 inches.

* WHERE...Portions of east central and northeast Colorado.

* WHEN...For the Wind Chill Advisory, until 11 AM MST Monday. For 
  the Winter Weather Advisory, from 5 PM this afternoon to 11 AM MST 
  Sunday.

* IMPACTS...Plan on slippery road conditions. The dangerously cold 
  wind chills could cause frostbite on exposed skin in as little as 
  10 minutes. Frostbite and hypothermia are possible if precautions 
  are not taken. Roads will likely become slick and hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The combination of wind and cold temperatures will create 
dangerously low wind chill values. If you go outside, cover all 
parts of your body, especially your head, face, and hands.

Pets are also susceptible to the extremely cold weather. Keep pets 
indoors as much as possible. If this is not possible, make sure 
outdoor pets have a warm, dry shelter, and provide sufficient food 
and fresh water.

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

&&

$$

COZ038>041-043-045-132215-
/O.CON.KBOU.WW.Y.0011.210214T0000Z-210214T1800Z/
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-Central and South Weld County-Central
and East Adams and Arapahoe Counties-
Including the cities of Elbert, Roggen, Arvada, Byers, Larkspur,
Leader, Boulder, City of Denver, Aurora, Littleton, Brighton,
Highlands Ranch, Fort Lupton, Loveland, Kiowa, Eaton, Deer Trail,
Longmont, Fondis, Denver International Airport, Golden, Parker,
Castle Rock, Lakewood, Fort Collins, Greeley, Bennett, Nunn, and
Hereford
714 AM MST Sat Feb 13 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS 
AFTERNOON TO 11 AM MST SUNDAY...

* WHAT...Snow expected. Total snow accumulations between 3 to 6 
  inches.

* WHERE...Portions of north central and northeast Colorado.

* WHEN...From 5 PM this afternoon to 11 AM MST Sunday.

* IMPACTS...Plan on slippery road conditions. Roads will likely 
  become slick and hazardous.

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

&&

$$

For more information from the National Weather Service, visit 
https://weather.gov/bou
363 
WWUS45 KBOU 131418
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver CO
718 AM MST Sat Feb 13 2021

COZ042-044-046>051-132230-
/O.CON.KBOU.WC.Y.0002.000000T0000Z-210215T1800Z/
/O.CON.KBOU.WW.Y.0011.210214T0000Z-210214T1800Z/
Northeast Weld County-Morgan County-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-
Including the cities of Wiggins, Fort Morgan, Hugo, Forder,
Julesburg, Sedgwick, Briggsdale, Sterling, Pawnee Buttes, Punkin
Center, Akron, Raymer, Amherst, Ovid, Matheson, Peetz, Grover,
Agate, Kutch, Haxtun, Last Chance, Goodrich, Stoneham, Karval,
Cope, Otis, Crook, Holyoke, Brush, Limon, and Merino
718 AM MST Sat Feb 13 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST MONDAY...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS 
AFTERNOON TO 11 AM MST SUNDAY...

* WHAT...Very cold wind chills ongoing. Wind chills as low as 25 
  below zero.  Snowfall accumulations of 3 to 6 inches.

* WHERE...Portions of east central and northeast Colorado.

* WHEN...For the Wind Chill Advisory, until 11 AM MST Monday. For 
  the Winter Weather Advisory, from 5 PM this afternoon to 11 AM MST 
  Sunday.

* IMPACTS...Plan on slippery road conditions. The dangerously cold 
  wind chills could cause frostbite on exposed skin in as little as 
  10 minutes. Frostbite and hypothermia are possible if precautions 
  are not taken. Roads will likely become slick and hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The combination of wind and cold temperatures will create 
dangerously low wind chill values. If you go outside, cover all 
parts of your body, especially your head, face, and hands.

Pets are also susceptible to the extremely cold weather. Keep pets 
indoors as much as possible. If this is not possible, make sure 
outdoor pets have a warm, dry shelter, and provide sufficient food 
and fresh water.

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

&&

$$

COZ038>041-043-045-132230-
/O.CON.KBOU.WW.Y.0011.210214T0000Z-210214T1800Z/
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-Central and South Weld County-Central
and East Adams and Arapahoe Counties-
Including the cities of Elbert, Roggen, Arvada, Byers, Larkspur,
Leader, Boulder, City of Denver, Aurora, Littleton, Brighton,
Highlands Ranch, Fort Lupton, Loveland, Kiowa, Eaton, Deer Trail,
Longmont, Fondis, Denver International Airport, Golden, Parker,
Castle Rock, Lakewood, Fort Collins, Greeley, Bennett, Nunn, and
Hereford
718 AM MST Sat Feb 13 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS 
AFTERNOON TO 11 AM MST SUNDAY...

* WHAT...Snow expected. Total snow accumulations between 3 to 6 
  inches.

* WHERE...Portions of north central and northeast Colorado.

* WHEN...From 5 PM this afternoon to 11 AM MST Sunday.

* IMPACTS...Plan on slippery road conditions. Roads will likely 
  become slick and hazardous.

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

&&

$$

For more information from the National Weather Service, visit 
https://weather.gov/bou
557 
WWUS45 KBOU 131524
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver/Boulder CO
824 AM MST Sat Feb 13 2021

COZ031-033-034-132330-
/O.EXB.KBOU.WW.Y.0011.210213T1900Z-210214T1800Z/
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 Mt Zirkel, Cameron Pass, 
Laramie and Medicine Bow Mountains, Rabbit Ears Range, 
Rocky Mountain National Park, Willow Creek Pass, 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
824 AM MST Sat Feb 13 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TODAY TO 11 AM MST
SUNDAY...

* WHAT...Snow expected. Total snow accumulations of 4 to 9 
  inches.

* WHERE...East Slopes Park and Northern Gore Ranges, Gore Pass, 
  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 noon today to 11 AM MST Sunday.

* IMPACTS...Plan on slippery road conditions. Roads will likely 
  become slick and hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

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

&&

$$

COZ042-044-046>051-132330-
/O.CON.KBOU.WC.Y.0002.000000T0000Z-210215T1800Z/
/O.CON.KBOU.WW.Y.0011.210214T0000Z-210214T1800Z/
Northeast Weld County-Morgan County-
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-
Including Briggsdale, Grover, Pawnee Buttes, Raymer, Stoneham, 
Brush, Fort Morgan, Goodrich, Wiggins, Agate, Hugo, Limon, 
Matheson, Forder, Karval, Kutch, Punkin Center, Crook, Merino, 
Sterling, Peetz, Akron, Cope, Last Chance, Otis, Julesburg, Ovid,
Sedgwick, Amherst, Haxtun, and Holyoke
824 AM MST Sat Feb 13 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST MONDAY...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 11 AM MST SUNDAY...

* WHAT...Very cold wind chills ongoing. Wind chills as low as 25 
  below zero. Snowfall accumulations of 3 to 6 inches. 

* WHERE...Portions of east central and northeast Colorado.

* WHEN...For the Wind Chill Advisory, until 11 AM MST Monday. 
  For the Winter Weather Advisory, from 5 PM this afternoon to 
  11 AM MST Sunday.

* IMPACTS...Plan on slippery road conditions. The dangerously 
  cold wind chills could cause frostbite on exposed skin in as 
  little as 10 minutes. Frostbite and hypothermia are possible 
  if precautions are not taken. Roads will likely become slick 
  and hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The combination of wind and cold temperatures will create
dangerously low wind chill values. If you go outside, cover all
parts of your body, especially your head, face, and hands.

Pets are also susceptible to the extremely cold weather. Keep
pets indoors as much as possible. If this is not possible, make
sure outdoor pets have a warm, dry shelter, and provide
sufficient food and fresh water.

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

&&

$$

COZ038>041-043-045-132330-
/O.CON.KBOU.WW.Y.0011.210214T0000Z-210214T1800Z/
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-
Central and South Weld County-
Central and East Adams and Arapahoe Counties-
Including Fort Collins, Hereford, Loveland, Nunn, Arvada, 
Boulder, Golden, Lakewood, Longmont, Aurora, Brighton, 
City of Denver, Denver International Airport, Highlands Ranch, 
Littleton, Parker, Castle Rock, Elbert, Fondis, Kiowa, Larkspur, 
Eaton, Fort Lupton, Greeley, Roggen, Bennett, Byers, Deer Trail, 
and Leader
824 AM MST Sat Feb 13 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 11 AM MST SUNDAY...

* WHAT...Snow expected. Total snow accumulations between 3 to 6 
  inches.

* WHERE...Portions of north central and northeast Colorado.

* WHEN...From 5 PM this afternoon to 11 AM MST Sunday.

* IMPACTS...Plan on slippery road conditions. Roads will likely 
  become slick and hazardous.

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

&&

$$
808 
WWUS45 KBOU 131918
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver/Boulder CO
1218 PM MST Sat Feb 13 2021

COZ038>041-043-045-140600-
/O.EXA.KBOU.WC.Y.0002.000000T0000Z-210215T1800Z/
/O.CON.KBOU.WW.Y.0011.210214T0000Z-210214T1800Z/
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-
Central and South Weld County-
Central and East Adams and Arapahoe Counties-
Including Fort Collins, Hereford, Loveland, Nunn, Arvada, 
Boulder, Golden, Lakewood, Longmont, Aurora, Brighton, 
City of Denver, Denver International Airport, Highlands Ranch, 
Littleton, Parker, Castle Rock, Elbert, Fondis, Kiowa, Larkspur, 
Eaton, Fort Lupton, Greeley, Roggen, Bennett, Byers, Deer Trail, 
and Leader
1218 PM MST Sat Feb 13 2021

...WIND CHILL ADVISORY IN EFFECT UNTIL 11 AM MST MONDAY...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 11 AM MST SUNDAY...

* WHAT...For the Winter Weather Advisory, snow expected. Total
  snow accumulations of 3 to 6 inches. For the Wind Chill
  Advisory, very cold wind chills. Wind chills as low as 25 below
  zero.

* WHERE...Portions of north central and northeast Colorado.

* WHEN...For the Wind Chill Advisory, until 11 AM MST Monday. 
  For the Winter Weather Advisory, from 5 PM this afternoon to 
  11 AM MST Sunday.

* IMPACTS...Plan on slippery road conditions. The dangerously 
  cold wind chills could cause frostbite on exposed skin in as 
  little as 10 minutes. Frostbite and hypothermia are possible 
  if precautions are not taken. Roads will likely become slick 
  and hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

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

&&

$$

COZ042-044-046>051-140600-
/O.CON.KBOU.WC.Y.0002.000000T0000Z-210215T1800Z/
/O.CON.KBOU.WW.Y.0011.210214T0000Z-210214T1800Z/
Northeast Weld County-Morgan County-
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-
Including Briggsdale, Grover, Pawnee Buttes, Raymer, Stoneham, 
Brush, Fort Morgan, Goodrich, Wiggins, Agate, Hugo, Limon, 
Matheson, Forder, Karval, Kutch, Punkin Center, Crook, Merino, 
Sterling, Peetz, Akron, Cope, Last Chance, Otis, Julesburg, Ovid,
Sedgwick, Amherst, Haxtun, and Holyoke
1218 PM MST Sat Feb 13 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST MONDAY...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 11 AM MST SUNDAY...

* WHAT...Very cold wind chills ongoing. Wind chills as low as 25 
  below zero. Snowfall accumulations of 3 to 6 inches.

* WHERE...Portions of east central and northeast Colorado.

* WHEN...For the Wind Chill Advisory, until 11 AM MST Monday. 
  For the Winter Weather Advisory, from 5 PM this afternoon to 
  11 AM MST Sunday.

* IMPACTS...Plan on slippery road conditions. The dangerously 
  cold wind chills could cause frostbite on exposed skin in as 
  little as 10 minutes. Frostbite and hypothermia are possible 
  if precautions are not taken. Roads will likely become slick 
  and hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The combination of wind and cold temperatures will create
dangerously low wind chill values. If you go outside, cover all
parts of your body, especially your head, face, and hands.

Pets are also susceptible to the extremely cold weather. Keep
pets indoors as much as possible. If this is not possible, make
sure outdoor pets have a warm, dry shelter, and provide
sufficient food and fresh water.

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

&&

$$

COZ031-033-034-140600-
/O.CON.KBOU.WW.Y.0011.000000T0000Z-210214T1800Z/
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 Mt Zirkel, Cameron Pass, 
Laramie and Medicine Bow Mountains, Rabbit Ears Range, 
Rocky Mountain National Park, Willow Creek Pass, 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
1218 PM MST Sat Feb 13 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
SUNDAY...

* WHAT...Snow expected. Total snow accumulations of 4 to 9 
  inches.

* WHERE...East Slopes Park and Northern Gore Ranges, Gore Pass, 
  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 noon today to 11 AM MST Sunday.

* IMPACTS...Plan on slippery road conditions. Roads will likely 
  become slick and hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

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

&&

$$
868 
WWUS45 KBOU 140350
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver/Boulder CO
850 PM MST Sat Feb 13 2021

COZ038>051-141200-
/O.CON.KBOU.WC.Y.0002.000000T0000Z-210215T1800Z/
/O.CON.KBOU.WW.Y.0011.000000T0000Z-210214T1800Z/
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-
Including Fort Collins, Hereford, Loveland, Nunn, Arvada, 
Boulder, Golden, Lakewood, Longmont, Aurora, Brighton, 
City of Denver, Denver International Airport, Highlands Ranch, 
Littleton, Parker, Castle Rock, Elbert, Fondis, Kiowa, Larkspur, 
Briggsdale, Grover, Pawnee Buttes, Raymer, Stoneham, Eaton, 
Fort Lupton, Greeley, Roggen, Brush, Fort Morgan, Goodrich, 
Wiggins, Bennett, Byers, Deer Trail, Leader, Agate, Hugo, Limon, 
Matheson, Forder, Karval, Kutch, Punkin Center, Crook, Merino, 
Sterling, Peetz, Akron, Cope, Last Chance, Otis, Julesburg, Ovid,
Sedgwick, Amherst, Haxtun, and Holyoke
850 PM MST Sat Feb 13 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST MONDAY...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
SUNDAY...

* WHAT...Very cold wind chills ongoing. Wind chills as low as 25 
  below zero. Snowfall accumulations of 3 to 6 inches.

* WHERE...Portions of east central and northeast Colorado.

* WHEN...For the Wind Chill Advisory, until 11 AM MST Monday. For
  the Winter Weather Advisory, until to 11 AM MST Sunday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning commute. The dangerously 
  cold wind chills could cause frostbite on exposed skin in as 
  little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

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

&&

$$

COZ031-033-034-141200-
/O.CON.KBOU.WW.Y.0011.000000T0000Z-210214T1800Z/
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 Mt Zirkel, Cameron Pass, 
Laramie and Medicine Bow Mountains, Rabbit Ears Range, 
Rocky Mountain National Park, Willow Creek Pass, 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
850 PM MST Sat Feb 13 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
SUNDAY...

* WHAT...Snow expected. Total snow accumulations of 4 to 8 
  inches.

* WHERE...East Slopes Park and Northern Gore Ranges, Gore Pass, 
  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...Until 11 AM MST Sunday.

* IMPACTS...Plan on slippery road conditions. The dangerously 
  cold wind chills as low as 30 below zero could cause frostbite 
  on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

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

&&

$$
690 
WWUS45 KBOU 141110
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver/Boulder CO
410 AM MST Sun Feb 14 2021

COZ039-040-141900-
/O.CAN.KBOU.WW.Y.0011.000000T0000Z-210214T1800Z/
/O.CON.KBOU.WC.Y.0002.000000T0000Z-210215T1800Z/
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-
Including Arvada, Boulder, Golden, Lakewood, Longmont, Aurora, 
Brighton, City of Denver, Denver International Airport, 
Highlands Ranch, Littleton, and Parker
410 AM MST Sun Feb 14 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST MONDAY...
...WINTER WEATHER ADVISORY IS CANCELLED...

* WHAT...Very cold wind chills. Wind chills as low as 25 below
  zero. Additional snow today will be around an inch.

* WHERE...Denver and Boulder and the western suburbs of Denver.

* WHEN...Until 11 AM MST Monday.

* IMPACTS...The cold wind chills could cause frostbite on 
  exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$

COZ031-033-034-141215-
/O.CAN.KBOU.WW.Y.0011.000000T0000Z-210214T1800Z/
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 Mt Zirkel, Cameron Pass, 
Laramie and Medicine Bow Mountains, Rabbit Ears Range, 
Rocky Mountain National Park, Willow Creek Pass, 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
410 AM MST Sun Feb 14 2021

...WINTER WEATHER ADVISORY IS CANCELLED...

Additional snowfall today will be light, with accumulations of an
inch or two. Some roads will remain icy or snowpacked in spots.
Check the latest road conditions by calling 5 1 1 or visiting
www.cotrip.org.

$$

COZ038-041>051-141900-
/O.CON.KBOU.WC.Y.0002.000000T0000Z-210215T1800Z/
/O.CON.KBOU.WW.Y.0011.000000T0000Z-210214T1800Z/
Larimer County Below 6000 Feet/Northwest Weld 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-
Including Fort Collins, Hereford, Loveland, Nunn, Castle Rock, 
Elbert, Fondis, Kiowa, Larkspur, Briggsdale, Grover, 
Pawnee Buttes, Raymer, Stoneham, Eaton, Fort Lupton, Greeley, 
Roggen, Brush, Fort Morgan, Goodrich, Wiggins, Bennett, Byers, 
Deer Trail, Leader, Agate, Hugo, Limon, Matheson, Forder, Karval,
Kutch, Punkin Center, Crook, Merino, Sterling, Peetz, Akron, 
Cope, Last Chance, Otis, Julesburg, Ovid, Sedgwick, Amherst, 
Haxtun, and Holyoke
410 AM MST Sun Feb 14 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST MONDAY...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

* WHAT...Additional snow accumulations of up to two inches. Very
  cold wind chills. Wind chills as low as 30 below zero.

* WHERE...The plains of northeast and east central Colorado
  excluding the Denver metro area.

* WHEN...For the Winter Weather Advisory, until 11 AM MST this 
  morning. For the Wind Chill Advisory, until 11 AM MST Monday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning commute. The dangerously 
  cold wind chills could cause frostbite on exposed skin in as 
  little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Wear appropriate 
clothing, a hat, and gloves. 

The latest road conditions can be obtained by calling 5 1 1 or
visiting www.cotrip.org.

&&

$$

Gimmestad
782 
WWUS45 KBOU 141715
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver/Boulder CO
1015 AM MST Sun Feb 14 2021

COZ038-041>045-048-050-051-150115-
/O.CAN.KBOU.WW.Y.0011.000000T0000Z-210214T1800Z/
/O.CON.KBOU.WC.Y.0002.000000T0000Z-210215T1800Z/
Larimer County Below 6000 Feet/Northwest Weld 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-Logan County-
Sedgwick County-Phillips County-
Including Fort Collins, Hereford, Loveland, Nunn, Castle Rock, 
Elbert, Fondis, Kiowa, Larkspur, Briggsdale, Grover, 
Pawnee Buttes, Raymer, Stoneham, Eaton, Fort Lupton, Greeley, 
Roggen, Brush, Fort Morgan, Goodrich, Wiggins, Bennett, Byers, 
Deer Trail, Leader, Crook, Merino, Sterling, Peetz, Julesburg, 
Ovid, Sedgwick, Amherst, Haxtun, and Holyoke
1015 AM MST Sun Feb 14 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST MONDAY...
...WINTER WEATHER ADVISORY IS CANCELLED...

* WHAT...Additional snow accumulations of up to two inches. Very 
  cold wind chills. Wind chills as low as 30 below zero.

* WHERE...Portions of north central and northeast Colorado.

* WHEN...Until 11 AM MST Monday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning commute. The dangerously 
  cold wind chills could cause frostbite on exposed skin in as 
  little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$

COZ046-047-049-150115-
/O.EXT.KBOU.WW.Y.0011.000000T0000Z-210214T2000Z/
/O.CON.KBOU.WC.Y.0002.000000T0000Z-210215T1800Z/
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Washington County-
Including Agate, Hugo, Limon, Matheson, Forder, Karval, Kutch, 
Punkin Center, Akron, Cope, Last Chance, and Otis
1015 AM MST Sun Feb 14 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 1 PM MST THIS
AFTERNOON...
...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST MONDAY...

* WHAT...Additional snow accumulations of up to two inches. Very 
  cold wind chills. Wind chills as low as 30 below zero.

* WHERE...The plains of northeast and east central Colorado 
  excluding the Denver metro area.

* WHEN...For the Winter Weather Advisory, until 1 PM MST this 
  afternoon. For the Wind Chill Advisory, until 11 AM MST Monday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning commute. The dangerously 
  cold wind chills could cause frostbite on exposed skin in as 
  little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

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

&&

$$

COZ039-040-150115-
/O.CON.KBOU.WC.Y.0002.000000T0000Z-210215T1800Z/
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-
Including Arvada, Boulder, Golden, Lakewood, Longmont, Aurora, 
Brighton, City of Denver, Denver International Airport, 
Highlands Ranch, Littleton, and Parker
1015 AM MST Sun Feb 14 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST MONDAY...

* WHAT...Very cold wind chills. Wind chills as low as 25 below 
  zero. Additional snow today will be around an inch.

* WHERE...Denver and Boulder and the western suburbs of Denver.

* WHEN...Until 11 AM MST Monday.

* IMPACTS...The cold wind chills could cause frostbite on 
  exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$
025 
WWUS45 KBOU 142004
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver/Boulder CO
104 PM MST Sun Feb 14 2021

COZ046-047-049-150415-
/O.EXP.KBOU.WW.Y.0011.000000T0000Z-210214T2000Z/
/O.CON.KBOU.WC.Y.0002.000000T0000Z-210215T1800Z/
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Washington County-
Including Agate, Hugo, Limon, Matheson, Forder, Karval, Kutch, 
Punkin Center, Akron, Cope, Last Chance, and Otis
104 PM MST Sun Feb 14 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST MONDAY...
...WINTER WEATHER ADVISORY HAS EXPIRED...

* WHAT...Very cold wind chills. Wind chills as low as 40 below 
  zero.

* WHERE...The plains of northeast and east central Colorado 
  excluding the Denver metro area.

* WHEN...For the Winter Weather Advisory, until 1 PM MST this 
  afternoon. For the Wind Chill Advisory, until 11 AM MST Monday.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$

COZ038>045-048-050-051-150415-
/O.CON.KBOU.WC.Y.0002.000000T0000Z-210215T1800Z/
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-Logan County-
Sedgwick County-Phillips County-
Including Fort Collins, Hereford, Loveland, Nunn, Arvada, 
Boulder, Golden, Lakewood, Longmont, Aurora, Brighton, 
City of Denver, Denver International Airport, Highlands Ranch, 
Littleton, Parker, Castle Rock, Elbert, Fondis, Kiowa, Larkspur, 
Briggsdale, Grover, Pawnee Buttes, Raymer, Stoneham, Eaton, 
Fort Lupton, Greeley, Roggen, Brush, Fort Morgan, Goodrich, 
Wiggins, Bennett, Byers, Deer Trail, Leader, Crook, Merino, 
Sterling, Peetz, Julesburg, Ovid, Sedgwick, Amherst, Haxtun, 
and Holyoke
104 PM MST Sun Feb 14 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST MONDAY...

* WHAT...Additional snow accumulations of up to two inches. Very 
  cold wind chills. Wind chills as low as 30 below zero.

* WHERE...Portions of north central and northeast Colorado.

* WHEN...Until 11 AM MST Monday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning commute. The dangerously 
  cold wind chills could cause frostbite on exposed skin in as 
  little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$
788 
WWUS45 KBOU 142148
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver/Boulder CO
248 PM MST Sun Feb 14 2021

COZ041>051-150600-
/O.UPG.KBOU.WC.Y.0002.000000T0000Z-210215T1800Z/
/O.NEW.KBOU.WC.W.0001.210214T2148Z-210215T1800Z/
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-
Including Castle Rock, Elbert, Fondis, Kiowa, Larkspur, 
Briggsdale, Grover, Pawnee Buttes, Raymer, Stoneham, Eaton, 
Fort Lupton, Greeley, Roggen, Brush, Fort Morgan, Goodrich, 
Wiggins, Bennett, Byers, Deer Trail, Leader, Agate, Hugo, Limon, 
Matheson, Forder, Karval, Kutch, Punkin Center, Crook, Merino, 
Sterling, Peetz, Akron, Cope, Last Chance, Otis, Julesburg, Ovid,
Sedgwick, Amherst, Haxtun, and Holyoke
248 PM MST Sun Feb 14 2021

...WIND CHILL WARNING IN EFFECT UNTIL 11 AM MST MONDAY...

* WHAT...Dangerously cold wind chills. Wind chills as low as 40 
  below zero.

* WHERE...Portions of east central and northeast Colorado.

* WHEN...Until 11 AM MST Monday.

* IMPACTS...The dangerously cold wind chills could cause frostbite
  on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you
wear appropriate clothing, a hat, and gloves. 

&&

$$

COZ038>040-150600-
/O.CON.KBOU.WC.Y.0002.000000T0000Z-210215T1800Z/
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-
Including Fort Collins, Hereford, Loveland, Nunn, Arvada, 
Boulder, Golden, Lakewood, Longmont, Aurora, Brighton, 
City of Denver, Denver International Airport, Highlands Ranch, 
Littleton, and Parker
248 PM MST Sun Feb 14 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST MONDAY...

* WHAT...Very cold wind chills. Wind chills as low as 30 below 
  zero.

* WHERE...Denver, Boulder and the western suburbs of Denver and 
  Larimer County below 6000 feet and Northwest Weld County.

* WHEN...Until 11 AM MST Monday.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$
357 
WWUS45 KBOU 150253
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver/Boulder CO
753 PM MST Sun Feb 14 2021

COZ038-151100-
/O.UPG.KBOU.WC.Y.0002.000000T0000Z-210215T1800Z/
/O.EXA.KBOU.WC.W.0001.000000T0000Z-210215T1800Z/
Larimer County Below 6000 Feet/Northwest Weld County-
Including Fort Collins, Hereford, Loveland, and Nunn
753 PM MST Sun Feb 14 2021

...WIND CHILL WARNING IN EFFECT UNTIL 11 AM MST MONDAY...

* WHAT...Dangerously cold wind chills. Wind chills as low as 35 
  below zero .

* WHERE...Larimer County below 6000 feet and Northwest Weld 
  County.

* WHEN...Until 11 AM MST Monday.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you
wear appropriate clothing, a hat, and gloves. 

&&

$$

COZ041>051-151100-
/O.CON.KBOU.WC.W.0001.000000T0000Z-210215T1800Z/
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-
Including Castle Rock, Elbert, Fondis, Kiowa, Larkspur, 
Briggsdale, Grover, Pawnee Buttes, Raymer, Stoneham, Eaton, 
Fort Lupton, Greeley, Roggen, Brush, Fort Morgan, Goodrich, 
Wiggins, Bennett, Byers, Deer Trail, Leader, Agate, Hugo, Limon, 
Matheson, Forder, Karval, Kutch, Punkin Center, Crook, Merino, 
Sterling, Peetz, Akron, Cope, Last Chance, Otis, Julesburg, Ovid,
Sedgwick, Amherst, Haxtun, and Holyoke
753 PM MST Sun Feb 14 2021

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST MONDAY...

* WHAT...Dangerously cold wind chills. Wind chills as lows as 40 
  below zero.

* WHERE...Portions of east central and northeast Colorado.

* WHEN...Until 11 AM MST Monday.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you
wear appropriate clothing, a hat, and gloves. 

&&

$$

COZ039-040-151100-
/O.CON.KBOU.WC.Y.0002.000000T0000Z-210215T1800Z/
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-
Including Arvada, Boulder, Golden, Lakewood, Longmont, Aurora, 
Brighton, City of Denver, Denver International Airport, 
Highlands Ranch, Littleton, and Parker
753 PM MST Sun Feb 14 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST MONDAY...

* WHAT...Very cold wind chills. Wind chills as low as 30 below 
  zero.

* WHERE...Denver, Boulder and the western suburbs of Denver.

* WHEN...Until 11 AM MST Monday.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$
305 
WWUS45 KBOU 150956
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver CO
256 AM MST Mon Feb 15 2021

COZ038-151800-
/O.CON.KBOU.WC.W.0001.000000T0000Z-210215T1800Z/
Larimer County Below 6000 Feet/Northwest Weld County-
Including the cities of Fort Collins, Loveland, Nunn, and
Hereford
256 AM MST Mon Feb 15 2021

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS 
MORNING...

* WHAT...Dangerously cold wind chills ongoing. Wind chills as low as 
  35 below zero.

* WHERE...Fort Collins.

* WHEN...Until 11 AM MST this morning.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The combination of wind and cold temperatures will create 
dangerously low wind chill values. Avoid outside activities if 
possible. When outside, make sure you wear appropriate clothing, a 
hat, and gloves.

&&

$$

COZ041>051-151800-
/O.CON.KBOU.WC.W.0001.000000T0000Z-210215T1800Z/
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-
Including the cities of Wiggins, Fort Morgan, Elbert, Hugo,
Roggen, Forder, Julesburg, Larkspur, Agate, Briggsdale, Leader,
Sterling, Pawnee Buttes, Sedgwick, Crook, Akron, Raymer, Amherst,
Fort Lupton, Cope, Ovid, Matheson, Peetz, Kiowa, Grover, Eaton,
Deer Trail, Byers, Fondis, Kutch, Haxtun, Last Chance, Castle
Rock, Goodrich, Stoneham, Karval, Greeley, Bennett, Otis, Punkin
Center, Holyoke, Brush, Limon, and Merino
256 AM MST Mon Feb 15 2021

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS 
MORNING...

* WHAT...Dangerously cold wind chills ongoing. Wind chills as low as 
  45 below zero.

* WHERE...Portions of east central and northeast Colorado.

* WHEN...Until 11 AM MST this morning.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The combination of wind and cold temperatures will create 
dangerously low wind chill values. Avoid outside activities if 
possible. When outside, make sure you wear appropriate clothing, a 
hat, and gloves.

&&

$$

COZ031-151800-
/O.NEW.KBOU.WW.Y.0012.210215T2100Z-210217T0100Z/
West Jackson and West Grand Counties Above 9000 Feet-
Including the cities of Mt Zirkel
256 AM MST Mon Feb 15 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 6 
PM MST TUESDAY...

* WHAT...Snow expected. Total snow accumulations between 5 to 10 
  inches. Winds gusting as high as 40 mph over the ridges.

* WHERE...Rabbit Ears Pass.

* WHEN...From 2 PM this afternoon to 6 PM MST Tuesday.

* IMPACTS...Travel could be very difficult. Roads will likely become 
  slick and hazardous.

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

&&

$$

COZ039-040-151800-
/O.CON.KBOU.WC.Y.0002.000000T0000Z-210215T1800Z/
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-
Including the cities of Boulder, Golden, Highlands Ranch, City of
Denver, Lakewood, Aurora, Arvada, Littleton, Parker, Longmont,
Denver International Airport, and Brighton
256 AM MST Mon Feb 15 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS 
MORNING...

* WHAT...Very cold wind chills ongoing. Wind chills as low as 25 
  below zero.

* WHERE...Boulder and the western suburbs of Denver, and Denver.

* WHEN...Until 11 AM MST this morning.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The combination of wind and cold temperatures will create 
dangerously low wind chill values. If you go outside, cover all 
parts of your body, especially your head, face, and hands.

&&

$$

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

Meier
703 
WWUS45 KBOU 151741
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver CO
1041 AM MST Mon Feb 15 2021

COZ050-051-160145-
/O.EXP.KBOU.WC.W.0001.000000T0000Z-210215T1800Z/
/O.NEW.KBOU.WC.Y.0003.210216T0100Z-210216T1700Z/
Sedgwick County-Phillips County-
Including the cities of Ovid, Holyoke, Julesburg, Amherst,
Sedgwick, and Haxtun
1041 AM MST Mon Feb 15 2021

...WIND CHILL ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 10 AM MST 
TUESDAY...
...WIND CHILL WARNING WILL EXPIRE AT 11 AM MST THIS MORNING...

* WHAT...Very cold wind chills expected. Wind chills as low as 25 
  below zero.

* WHERE...Julesburg, and Holyoke.

* WHEN...From 6 PM this evening to 10 AM MST Tuesday.

* IMPACTS...The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The combination of wind and cold temperatures will create 
dangerously low wind chill values. If you go outside, cover all 
parts of your body, especially your head, face, and hands.

&&

$$

COZ038-041>049-151845-
/O.EXP.KBOU.WC.W.0001.000000T0000Z-210215T1800Z/
Larimer County Below 6000 Feet/Northwest Weld 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-
Including the cities of Wiggins, Fort Morgan, Elbert, Hugo,
Roggen, Forder, Larkspur, Agate, Briggsdale, Leader, Sterling,
Pawnee Buttes, Crook, Akron, Raymer, Fort Lupton, Cope, Matheson,
Loveland, Peetz, Kiowa, Grover, Eaton, Deer Trail, Byers, Fondis,
Kutch, Last Chance, Castle Rock, Goodrich, Stoneham, Fort
Collins, Greeley, Bennett, Otis, Punkin Center, Nunn, Brush,
Karval, Limon, Hereford, and Merino
1041 AM MST Mon Feb 15 2021

...WIND CHILL WARNING WILL EXPIRE AT 11 AM MST THIS MORNING...

$$

COZ039-040-151845-
/O.EXP.KBOU.WC.Y.0002.000000T0000Z-210215T1800Z/
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-
Including the cities of Boulder, Golden, Highlands Ranch, City of
Denver, Lakewood, Aurora, Arvada, Littleton, Parker, Longmont,
Denver International Airport, and Brighton
1041 AM MST Mon Feb 15 2021

...WIND CHILL ADVISORY WILL EXPIRE AT 11 AM MST THIS MORNING...

$$

COZ031-160145-
/O.CON.KBOU.WW.Y.0012.210215T2100Z-210217T0100Z/
West Jackson and West Grand Counties Above 9000 Feet-
Including the cities of Mt Zirkel
1041 AM MST Mon Feb 15 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 2 PM THIS 
AFTERNOON TO 6 PM MST TUESDAY...

* WHAT...Snow expected. Total snow accumulations between 5 to 10 
  inches with locally higher amounts. Winds gusting as high as 40 
  mph over the ridges.

* WHERE...Rabbit Ears Pass.

* WHEN...From 2 PM this afternoon to 6 PM MST Tuesday.

* IMPACTS...Travel could be very difficult. Roads will likely become 
  slick and hazardous.

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

&&

$$

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

Barjenbruch

The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 11, 4:10 AM MSTWinter Weather AdvisoryBOUBoulder, Grand, Jackson, Larimer49 hr
Feb 11, 1:17 PM MSTWind Chill AdvisoryBOUElbert, Lincoln, Logan, Morgan, Phillips, Sedgwick and 2 more28 min

Nearby

Wind Chill Advisories in Colorado, 2021Every wind chill advisory in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.