Alert archive / Colorado / Winter Storm Watches in 2021

Winter Storm Watch 16, NWS Pueblo, CO

December 29, 20217 counties in Colorado

NWS Pueblo, CO issued this winter storm watch at Dec 29, 2021, 2:45 PM MST for 7 counties in Colorado. It took effect at Dec 31, 2021, 5:00 AM MST. It was in force for .

The area

The counties it named.

The facts

Issued
Dec 29, 2021, 2:45 PM MST (21:45 UTC)
In effect from
Dec 31, 2021, 5:00 AM MST
Expired
Dec 30, 2021, 2:47 PM MST
In force
Issued by
NWS Pueblo, CO

Counties Alamosa County, CO, Costilla County, CO, Custer County, CO, Fremont County, CO, Huerfano County, CO, Las Animas County, CO, Saguache County, CO

The radar

The Pueblo radar (KPUX), 125 km from the middle of the area, began a volume at 21:44 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, 9.8 hours before the alert went out and 294 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 2021-12-29Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2021-12-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 87 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
1757 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
87 m²/s²
0-3 km storm-relative helicity
155 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

080 
WWUS45 KPUB 292145
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
245 PM MST Wed Dec 29 2021

COZ058-060-066-068-300545-
/O.UPG.KPUB.WS.A.0015.211230T1200Z-220101T1200Z/
/O.NEW.KPUB.WS.W.0014.211230T1200Z-220101T1200Z/
Western Mosquito Range/East Lake County Above 11000 Feet-
Eastern Sawatch Mountains Above 11000 Feet-
La Garita Mountains Above 10000 Feet-
Eastern San Juan Mountains Above 10000 Feet-
245 PM MST Wed Dec 29 2021

...WINTER STORM WARNING IN EFFECT FROM 5 AM THURSDAY TO 5 AM MST
SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 6 to 10
  inches possible in the La Garitas, and 1 to 2 feet over the
  Sawatch Range and eastern San Juan Mountains. Winds gusting as 
  high as 50 mph.

* WHERE...Western Mosquito Range, East Lake County Above 11000
  Feet, Eastern Sawatch Mountains Above 11000 Feet, La Garita
  Mountains Above 10000 Feet and Eastern San Juan Mountains Above
  10000 Feet.

* WHEN...From 5 AM Thursday to 5 AM MST Saturday.

* IMPACTS...Travel could be very difficult to impossible. Patchy
  blowing snow could significantly reduce visibility. 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...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

COZ073-075-300545-
/O.NEW.KPUB.WS.A.0016.211231T1200Z-220101T1800Z/
Northern Sangre de Cristo Mountains Above 11000 Feet-
Southern Sangre de Cristo Mountains Above 11000 Feet-
245 PM MST Wed Dec 29 2021

...WINTER STORM WATCH IN EFFECT FROM LATE THURSDAY NIGHT THROUGH
SATURDAY MORNING...

* WHAT...Heavy snow possible. Total snow accumulations of 6 to 12
  inches possible. Winds could gust as high as 50 mph.

* WHERE...Northern Sangre de Cristo Mountains Above 11000 Feet and
  Southern Sangre de Cristo Mountains Above 11000 Feet.

* WHEN...From late Thursday night through Saturday morning.

* IMPACTS...Travel could be very difficult. Areas of blowing snow
  could significantly reduce visibility. 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...

Monitor the latest forecasts for updates on this situation. 

&&

$$
4 follow-up statements
533 
WWUS45 KPUB 300513
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
1013 PM MST Wed Dec 29 2021

COZ058-060-066-068-301315-
/O.CON.KPUB.WS.W.0014.211230T1200Z-220101T1200Z/
Western Mosquito Range/East Lake County Above 11000 Feet-
Eastern Sawatch Mountains Above 11000 Feet-
La Garita Mountains Above 10000 Feet-
Eastern San Juan Mountains Above 10000 Feet-
1013 PM MST Wed Dec 29 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM THURSDAY TO
5 AM MST SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 6 to 10
  inches possible in the La Garitas, and 1 to 2 feet over the
  Sawatch and Mosquito Ranges and 1 to 3 feet for the eastern San
  Juan Mountains. Winds gusting as high as 50 mph.

* WHERE...Western Mosquito Range, East Lake County Above 11000 
  Feet, Eastern Sawatch Mountains Above 11000 Feet, La Garita 
  Mountains Above 10000 Feet and Eastern San Juan Mountains 
  Above 10000 Feet.

* WHEN...From 5 AM Thursday to 5 AM MST Saturday.

* IMPACTS...Travel could be very difficult to impossible. Patchy 
  blowing snow could significantly reduce visibility. 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...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

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

&&

$$

COZ073-075-301315-
/O.CON.KPUB.WS.A.0016.211231T1200Z-220101T1800Z/
Northern Sangre de Cristo Mountains Above 11000 Feet-
Southern Sangre de Cristo Mountains Above 11000 Feet-
1013 PM MST Wed Dec 29 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE THURSDAY NIGHT
THROUGH SATURDAY MORNING...

* WHAT...Heavy snow possible. Total snow accumulations of 6 to 
  12 inches possible. Winds could gust as high as 50 mph.

* WHERE...the Sangre de Cristo Mountains Above 11000 Feet.

* WHEN...From late Thursday night through Saturday morning.

* IMPACTS...Travel could be very difficult. Areas of blowing 
  snow could significantly reduce visibility. 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...

Monitor the latest forecasts for updates on this situation.

&&

$$
978 
WWUS45 KPUB 301048
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
348 AM MST Thu Dec 30 2021

COZ066-068-301900-
/O.EXT.KPUB.WS.W.0014.211230T1200Z-220101T1800Z/
La Garita Mountains Above 10000 Feet-
Eastern San Juan Mountains Above 10000 Feet-
348 AM MST Thu Dec 30 2021

...WINTER STORM WARNING NOW IN EFFECT UNTIL 11 AM MST SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 12 to 
  31 inches. Winds gusting as high as 65 mph.

* WHERE...Eastern San Juan Mountains Above 10000 Feet and La
  Garita Mountains Above 10000 Feet.

* WHEN...Until 11 AM MST Saturday.

* IMPACTS...Travel could be very difficult to impossible.
  Widespread blowing snow could significantly reduce visibility.
  The hazardous conditions could impact the morning or evening
  commute. Dangerously cold wind chills as low as 25 below zero 
  could cause frostbite on exposed skin in as little as 30 
  minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

COZ058-060-301900-
/O.CON.KPUB.WS.W.0014.211230T1200Z-220101T1200Z/
Western Mosquito Range/East Lake County Above 11000 Feet-
Eastern Sawatch Mountains Above 11000 Feet-
348 AM MST Thu Dec 30 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST
SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 5 to 
  19 inches. Winds gusting as high as 80 mph.

* WHERE...Western Mosquito Range, East Lake County and the Eastern
  Sawatch Mountains Above 11000 Feet.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Travel could be very difficult to impossible.
  Widespread blowing snow could significantly reduce visibility.
  The hazardous conditions could impact the morning or evening
  commute. 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...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

COZ059-064-301900-
/O.NEW.KPUB.WW.Y.0035.211231T0000Z-220101T1200Z/
Leadville Vicinity/Lake County Below 11000 Feet-
Saguache County West of Continental Divide Below 10000 Feet-
348 AM MST Thu Dec 30 2021

...WINTER WEATHER ADVISORY HAS BEEN ISSUED FROM 5 PM THIS 
AFTERNOON TO 5 AM MST SATURDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 9 
  inches. Winds gusting as high as 45 mph.

* WHERE...Leadville Vicinity, Lake County Below 11000 Feet, and
  Saguache County West of Continental Divide Below 10000 Feet.

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

* IMPACTS...Travel could be very difficult. Patchy blowing snow
  could significantly reduce visibility. The hazardous conditions
  could impact the morning or evening commute. Gusty winds could
  bring down tree branches.


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.

&&

$$

COZ073-075-301900-
/O.CON.KPUB.WS.A.0016.211231T1200Z-220101T1800Z/
Northern Sangre de Cristo Mountains Above 11000 Feet-
Southern Sangre de Cristo Mountains Above 11000 Feet-
348 AM MST Thu Dec 30 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
SATURDAY MORNING...

* WHAT...Heavy snow possible. Total snow accumulations of 6 to 10 
  inches possible. Winds could gust as high as 55 mph.

* WHERE...Northern and Southern Sangre de Cristo Mountains Above 
  11000 Feet.

* WHEN...From late tonight through Saturday morning.

* IMPACTS...Travel could be very difficult. Areas of blowing snow
  could significantly reduce visibility. The hazardous conditions
  could impact the morning or evening commute. Strong winds could
  cause tree damage. 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...

Monitor the latest forecasts for updates on this situation. 

&&

$$
138 
WWUS45 KPUB 301730
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
1030 AM MST Thu Dec 30 2021

COZ058-060-310130-
/O.CON.KPUB.WS.W.0014.000000T0000Z-220101T1200Z/
Western Mosquito Range/East Lake County Above 11000 Feet-
Eastern Sawatch Mountains Above 11000 Feet-
1030 AM MST Thu Dec 30 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST
SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 10 to 
  20 inches. Winds gusting as high as 80 mph.

* WHERE...Western Mosquito Range, East Lake County and the 
  Eastern Sawatch Mountains Above 11000 Feet.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Travel could be very difficult to impossible.
  Widespread blowing snow could significantly reduce visibility.
  The cold wind chills as low as 25 below zero could cause
  frostbite on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, make sure you have a winter survival kit in
your vehicle.

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

&&

$$

COZ066-068-310130-
/O.CON.KPUB.WS.W.0014.000000T0000Z-220101T1800Z/
La Garita Mountains Above 10000 Feet-
Eastern San Juan Mountains Above 10000 Feet-
1030 AM MST Thu Dec 30 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 15 to 30 
  inches. Winds gusting as high as 65 mph.

* WHERE...Eastern San Juan Mountains Above 10000 Feet and La 
  Garita Mountains Above 10000 Feet.

* WHEN...Until 11 AM MST Saturday.

* IMPACTS...Travel could be very difficult to impossible.
  Widespread blowing snow could significantly reduce visibility.
  The cold wind chills as low as 25 below zero could cause
  frostbite on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

COZ059-064-310130-
/O.CON.KPUB.WW.Y.0035.211231T0000Z-220101T1200Z/
Leadville Vicinity/Lake County Below 11000 Feet-
Saguache County West of Continental Divide Below 10000 Feet-
1030 AM MST Thu Dec 30 2021

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

* WHAT...Snow expected. Total snow accumulations of 4 to 8 
  inches. Winds gusting as high as 45 mph.

* WHERE...Leadville Vicinity, Lake County Below 11000 Feet, and 
  Saguache County West of Continental Divide Below 10000 Feet.

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

* IMPACTS...Travel could be difficult at times due to areas of
  blowing snow. 

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.

&&

$$

COZ073-075-310130-
/O.CON.KPUB.WS.A.0016.211231T1200Z-220101T1800Z/
Northern Sangre de Cristo Mountains Above 11000 Feet-
Southern Sangre de Cristo Mountains Above 11000 Feet-
1030 AM MST Thu Dec 30 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
SATURDAY MORNING...

* WHAT...Heavy snow possible. Total snow accumulations of 6 to 
  10 inches possible. Winds could gust as high as 55 mph.

* WHERE...Northern and Southern Sangre de Cristo Mountains Above 
  11000 Feet.

* WHEN...From late tonight through Saturday morning.

* IMPACTS... 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...

Monitor the latest forecasts for updates on this situation. 

&&

$$

Hodanish
209 
WWUS45 KPUB 302147
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
247 PM MST Thu Dec 30 2021

COZ066-310600-
/O.CAN.KPUB.WS.W.0014.000000T0000Z-220101T1800Z/
/O.EXB.KPUB.WW.Y.0035.211230T2147Z-220101T1800Z/
La Garita Mountains Above 10000 Feet-
247 PM MST Thu Dec 30 2021

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST SATURDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow. Additional snow accumulations of 3 to 6 inches. 
  Winds gusting as high as 50 mph.

* WHERE...La Garita Mountains Above 10000 Feet County.

* WHEN...Until 11 AM MST Saturday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing snow
  could significantly reduce visibility. The cold wind chills as 
  low as 20 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 the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

COZ075-310600-
/O.UPG.KPUB.WS.A.0016.211231T1200Z-220101T1800Z/
/O.EXB.KPUB.WS.W.0014.211231T1200Z-220102T0000Z/
Southern Sangre de Cristo Mountains Above 11000 Feet-
247 PM MST Thu Dec 30 2021

...WINTER STORM WARNING IN EFFECT FROM 5 AM FRIDAY TO 5 PM MST
SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 7 to 
  14 inches. Winds gusting as high as 60 mph.

* WHERE...Southern Sangre de Cristo Mountains Above 11000 Feet 
  County.

* WHEN...From 5 AM Friday to 5 PM MST Saturday.

* IMPACTS...Travel could be very difficult. Widespread blowing
  snow could significantly reduce visibility. Strong winds could
  cause tree damage, especially in burn scar areas. The cold wind
  chills as low as 25 below zero could cause frostbite on exposed
  skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

COZ073-310600-
/O.UPG.KPUB.WS.A.0016.211231T1200Z-220101T1800Z/
/O.EXB.KPUB.WS.W.0014.211231T1200Z-220101T1800Z/
Northern Sangre de Cristo Mountains Above 11000 Feet-
247 PM MST Thu Dec 30 2021

...WINTER STORM WARNING IN EFFECT FROM 5 AM FRIDAY TO 11 AM MST
SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 5 to 10 
  inches. Winds gusting as high as 60 mph.

* WHERE...Northern Sangre de Cristo Mountains Above 11000 Feet 
  County.

* WHEN...From 5 AM Friday to 11 AM MST Saturday.

* IMPACTS...Travel could be very difficult. Widespread blowing
  snow could significantly reduce visibility.  Strong winds could
  cause tree damage. The cold wind chills as low as 20 below zero
  could cause frostbite on exposed skin in as little as 30 
  minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

COZ058-060-310600-
/O.CON.KPUB.WS.W.0014.000000T0000Z-220101T1200Z/
Western Mosquito Range/East Lake County Above 11000 Feet-
Eastern Sawatch Mountains Above 11000 Feet-
247 PM MST Thu Dec 30 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST
SATURDAY...

* WHAT...Heavy snow. Additional snow accumulations of 10 to 20 
  inches. Winds gusting as high as 55 mph.

* WHERE...Eastern Sawatch Mountains Above 11000 Feet and Western 
  Mosquito Range/East Lake County Above 11000 Feet Counties.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Travel could be very difficult to impossible.
  Widespread blowing snow could significantly reduce visibility.
  The cold wind chills as low as 25 below zero could cause
  frostbite on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

COZ068-310600-
/O.CON.KPUB.WS.W.0014.000000T0000Z-220101T1800Z/
Eastern San Juan Mountains Above 10000 Feet-
247 PM MST Thu Dec 30 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST
SATURDAY...

* WHAT...Heavy snow. Additional snow accumulations of one to three
  feet. The heaviest snow will fall on the southwest slopes. Winds
  gusting as high as 50 mph.

* WHERE...Eastern San Juan Mountains Above 10000 Feet County.

* WHEN...Until 11 AM MST Saturday.

* IMPACTS...Travel could be very difficult to impossible.
  Widespread blowing snow could significantly reduce visibility. The
  cold wind chills as low as 15 below zero could result in 
  hypothermia if precautions are not taken.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

COZ072-310600-
/O.EXB.KPUB.WW.Y.0035.220101T0000Z-220101T1800Z/
Northern Sangre de Cristo Mountains Between 8500 And 11000 Feet-
247 PM MST Thu Dec 30 2021

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

* WHAT...Snow expected. Total snow accumulations of 3 to 6 
  inches. Winds gusting as high as 40 mph.

* WHERE...Northern Sangre de Cristo Mountains Between 8500 and 
  11000 Feet County.

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

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the evening commute.

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.

&&

$$

COZ074-310600-
/O.EXB.KPUB.WW.Y.0035.220101T0000Z-220102T0000Z/
Southern Sangre de Cristo Mountains Between 7500 and 11000 Feet-
247 PM MST Thu Dec 30 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM FRIDAY TO 5 PM MST
SATURDAY...

* WHAT...Snow expected. Total snow accumulations of 4 to 8 
  inches. Winds gusting as high as 40 mph.

* WHERE...Southern Sangre de Cristo Mountains Between 7500 and 
  11000 Feet County.

* WHEN...From 5 PM Friday to 5 PM MST Saturday.

* IMPACTS...Plan on slippery road conditions. The cold wind 
  chills as low as 15 below zero could result in hypothermia if 
  precautions are not taken.

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.

&&

$$

COZ081-082-084-310600-
/O.EXB.KPUB.WW.Y.0035.220101T0000Z-220101T1800Z/
Teller County/Rampart Range Above 7500 Feet/Pikes Peak Between
7500 And 11000 Feet-Pikes Peak Above 11000 Feet-
Northern El Paso County/Monument Ridge/Rampart Range Below
7500 Feet-
247 PM MST Thu Dec 30 2021

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

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

* WHERE...Teller county and northern El Paso county.

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

* IMPACTS...Plan on slippery road conditions. The cold wind chills
  as low as 20 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.

&&

$$

COZ064-310600-
/O.CON.KPUB.WW.Y.0035.211231T0000Z-220101T1200Z/
Saguache County West of Continental Divide Below 10000 Feet-
247 PM MST Thu Dec 30 2021

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

* WHAT...Snow expected. Total snow accumulations of 3 to 5 
  inches. Winds gusting as high as 40 mph.

* WHERE...Saguache County West of Continental Divide Below 10000 
  Feet County.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.

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.

&&

$$

COZ059-310600-
/O.CON.KPUB.WW.Y.0035.211231T0000Z-220101T1200Z/
Leadville Vicinity/Lake County Below 11000 Feet-
247 PM MST Thu Dec 30 2021

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

* WHAT...Snow expected. Total snow accumulations of 4 to 8 
  inches. Winds gusting as high as 40 mph.

* WHERE...Leadville Vicinity/Lake County Below 11000 Feet County.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Travel could be very difficult. Patchy blowing snow 
  could significantly reduce visibility. The hazardous 
  conditions could impact the morning or evening commute.

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.

&&

$$

Hodanish/Simcoe

What forecasters said that day

The local office's own words before this winter storm watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Pueblo, CO wrote its last area forecast discussion before this winter storm watch went out at Dec 29, 11:09 AM MST, 3 hours 36 minutes earlier.

Area forecast discussion, Dec 29, 11:09 AM MST, 3 hours 36 minutes before
Area Forecast Discussion
National Weather Service Pueblo CO
1109 AM MST Wed Dec 29 2021

.UPDATE...
Issued at 1105 AM MST Wed Dec 29 2021

Let warnings/advisories along the Continental Divide expire, watch
for late tonight into Sat remains in place, though will likely
upgrade a few locations to warnings with the new forecast later
this afternoon.

&&

.SHORT TERM...(Today and tonight)
Issued at 315 AM MST Wed Dec 29 2021

...Key Messages

1. Winter storm along the southwest mountains and Continental Divide
wanes a bit today.

2. Breezy to windy conditions with elevated fire weather concerns
across the plains this afternoon...

Still keeping an eye on the on-going moderate snowfall over the
southwest mountains this morning though it looks like it has waned a
bit on CDOT cameras. The continued trend throughout the day will be
for improvement and the late morning ending time for the current
winter storm warning and advisories looks good. This being said, the
lull in activity will be fairly short lived. More on that below.

Farther east, the dry days continue under mostly sunny skies. We'll
change it up a bit, compared to Tuesday, and back the winds more
from the west-southwest and knock off a couple of degrees too. The
slight temperature decrease will keep relative humidity values just
high enough to not warrant Red Flag Warnings today, but as we've
seen lot recently the stronger winds can make up for the higher
RH's. Elevated fire weather conditions persist from I-25 eastward
today.

.LONG TERM...(Thursday through Tuesday)
Issued at 315 AM MST Wed Dec 29 2021

...Key Messages

1. Continued elevated to near critical fire weather conditions over
the plains on Thursday and Friday with gustier winds.

2. Messy yet moisture laden and very welcomed pattern continues,
especially along the Divide and westward, maybe even the plains,
into the Holiday weekend.

3. New Year's Eve Night and Day likely to have snow across a broad
region...

Thursday - Friday...The next wave in the wave train enters pushing
more moisture into the southwest mountains and the Continental
Divide. Winter Storm Watches remain in effect for these regions at
this time as we would like to conclude the current on-going moderate
snowfall over these same regions before introducing another lengthy
Winter Storm Warning. This looks to be another 36-48 hour moderate
to heavy snowfall event with 1-2.5 inches of liquid producing
another foot or two of snow. We're definitely making up for lost
time, that's for sure!

Elsewhere, warmer and drier conditions persist which has been an
unfortunate theme since September? Given all the activity taking
place over the southwest and central mountains, we continue to get
better downsloping in the lee of the eastern mountains as
temperatures warm back to above late December averages. Still not
seeing a widespread red flag kind of day out east but locally
critical conditions are very possible each afternoon, I-25 and
eastward.

Friday Night - Saturday...So it's the new year, and what have we
done? Changed the pattern, that's what! We finally see some light at
the end of the snow drought across much of the Front Range and
eastern Colorado plains. Not trying to spike the football while
still on the 10-yard line, but wow finally a little excitement that
isn't just straight wind and moving dirt across state lines. Even if
this wave ends up being a really quick hitter, which looks likely,
lee cyclogenesis producing weak upslope flow with some low-level
baroclinicity has our attention. There are some positives going for
the system regarding snow potential, overnight arrival, good
moisture origin, and mid-level trough south of previous troughs. The
negatives, quick moving system, positively tilter mid-level trough,
and the fact that we're still in a nasty drought. Fairly cold
temperatures expected with and behind this wave as highs will be
well below average. All-in-all, let's just ring in the new year with
some good thoughts and vibes and finally put some snow down across a
broad region.

Sunday - Tuesday...Ridging kicks back in and the fun and excitement
of the snow potential comes to a swift end. A rather large break,
relatively speaking, in action all across the region commences with
ridging becoming more flat and a pseudo-zonal flow aloft takes
place. We should quickly rebound temperature-wise as well and bump
us back up several degrees above early January averages.

&&

.AVIATION...(For the 18Z TAFS through 18Z Thursday afternoon)
Issued at 1026 AM MST Wed Dec 29 2021

VFR at all taf sites the next 24 hrs. At KALS, west winds will
gust 20-25 kts into early evening then diminish. At KCOS,
prevailing wind will be s-se this afternoon, though there could be
a few brief periods of gusty sw winds 19z-23z. Winds then diminish
overnight, becoming w-nw Thu morning. At KPUB, prevailing winds
will be w-sw, with potential for brief shifts to e-se through the
afternoon. Overnight, winds will remain generally w-nw. On Thur,
gusty west winds develop at all sites after 19z.

&&

.PUB WATCHES/WARNINGS/ADVISORIES...
Winter Storm Watch from late tonight through late Friday night
for COZ058-060-066-068.

&&

UPDATE...PETERSEN
SHORT TERM...HEAVENER
LONG TERM...HEAVENER
AVIATION...PETERSEN
Hazardous weather outlook, Dec 29, 11:16 AM MST, 3 hours 29 minutes before
Hazardous Weather Outlook
National Weather Service Pueblo CO
1116 AM MST Wed Dec 29 2021

COZ058>089-093>099-301830-
Western Mosquito Range/East Lake County Above 11000 Feet-
Leadville Vicinity/Lake County Below 11000 Feet-
Eastern Sawatch Mountains Above 11000 Feet-
Western Chaffee County Between 9000 and 11000 Feet-
Central Chaffee County Below 9000 Feet-
Western Mosquito Range/East Chaffee County Above 9000 Feet-
Saguache County West of Continental Divide Below 10000 Feet-
Saguache County East of Continental Divide Below 10000 Feet-
La Garita Mountains Above 10000 Feet-
Upper Rio Grande Valley/Eastern San Juan Mountains Below
10000 Feet-Eastern San Juan Mountains Above 10000 Feet-
Del Norte Vicinity/Northern San Luis Valley Below 8500 Feet-
Alamosa  Vicinity/Central San Luis Valley Below 8500 Feet-
Southern San Luis Valley-
Northern Sangre de Cristo Mountains Between 8500 And 11000 Feet-
Northern Sangre de Cristo Mountains Above 11000 Feet-
Southern Sangre de Cristo Mountains Between 7500 and 11000 Feet-
Southern Sangre de Cristo Mountains Above 11000 Feet-
Northwestern Fremont County Above 8500 Feet-
Western/Central Fremont County Below 8500 Feet-
Wet Mountain Valley Below 8500 Feet-
Wet Mountains between 6300 and 10000 Feet-
Wet Mountains Above 10000 Feet-
Teller County/Rampart Range Above 7500 Feet/Pikes Peak Between
7500 And 11000 Feet-Pikes Peak Above 11000 Feet-
Canon City Vicinity/Eastern Fremont County-
Northern El Paso County/Monument Ridge/Rampart Range Below
7500 Feet-
Colorado Springs Vicinity/Southern El Paso County/Rampart Range
Below 7400 Feet-Pueblo Vicinity/Pueblo County Below 6300 Feet-
Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Feet-
Trinidad Vicinity/Western Las Animas County Below 7500 Feet-
Crowley County-La Junta Vicinity/Otero County-
Eastern Las Animas County-Western Kiowa County-
Eastern Kiowa County-Las Animas Vicinity/Bent County-
Lamar Vicinity/Prowers County-Springfield Vicinity/Baca County-
1116 AM MST Wed Dec 29 2021

This hazardous weather outlook is for portions of central...east
central...south central and southeast Colorado.

.DAY ONE...This Afternoon and Tonight

Snow showers and flurries are expected along the Continental
Divide today and tonight, though any accumulations will be minor.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Heavier mountain snow, Continental Divide and southwest
mountains, commences early Thursday morning and continues through
Saturday morning. A light accumulation is also possible late
Friday night into Saturday morning along the I-25 corridor and
points east.

Elevated to locally critical fire weather conditions are expected
Thursday and Friday over the plains.

.SPOTTER INFORMATION STATEMENT...

Weather spotters will not be needed today or tonight.

10/55

In the hours before

Local storm report, Dec 29, 9:18 AM MST, 5 hours 27 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PUEBLO CO
918 AM MST WED DEC 29 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0917 AM     SNOW             2 NE LEADVILLE          39.27N 106.27W
12/29/2021  M1.3 INCH        LAKE               CO   TRAINED SPOTTER

            24 HOUR SNOW TOTAL FOR 12/28/21.

&&

The office that day

Everything else NWS Pueblo, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 29, 2:45 PM MSTWinter Storm WarningPUBAlamosa, Chaffee, Conejos, Costilla, Custer, Fremont and 6 more3 days

Nearby

Winter Storm Watches in Colorado, 2021Every winter storm watch 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.