Alert archive / Colorado / Winter Weather Advisories in 2021

Winter Weather Advisory 10, NWS Pueblo, CO

February 17, 20218 counties in Colorado

NWS Pueblo, CO issued this winter weather advisory at Feb 17, 2021, 4:17 AM MST for 8 counties in Colorado. It took effect at Feb 17, 2021, 2:00 PM MST. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued
Feb 17, 2021, 4:17 AM MST (11:17 UTC)
In effect from
Feb 17, 2021, 2:00 PM MST
Expired
Feb 18, 2021, 5:00 AM MST
In force
15 hr
Issued by
NWS Pueblo, CO

Counties Costilla County, CO, Custer County, CO, El Paso County, CO, Fremont County, CO, Huerfano County, CO, Las Animas County, CO, Pueblo County, CO, Teller County, CO

The radar

The Pueblo radar (KPUX), 77 km from the middle of the area, began a volume at 11:16 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 00:00Z, 11.3 hours before the alert went out and 246 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 00:00Z on 2021-02-17Temperature 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 00:00Z on 2021-02-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 square meters per square second.193958Sfc1 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
1785 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

148 
WWUS45 KPUB 171117
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
417 AM MST Wed Feb 17 2021

COZ075-171930-
/O.NEW.KPUB.WS.W.0003.210217T2100Z-210218T1200Z/
Southern Sangre de Cristo Mountains Above 11000 Feet-
417 AM MST Wed Feb 17 2021

...WINTER STORM WARNING HAS BEEN ISSUED FROM 2 PM THIS AFTERNOON 
TO 5 AM MST THURSDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 7 to 10 
  inches.

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

* WHEN...From 2 PM this afternoon to 5 AM MST Thursday.

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

&&

$$

COZ081-082-084-085-171930-
/O.NEW.KPUB.WW.Y.0010.210217T2100Z-210218T1200Z/
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-
Colorado Springs Vicinity/Southern El Paso County/Rampart Range
Below 7400 Feet-
417 AM MST Wed Feb 17 2021

...WINTER WEATHER ADVISORY HAS BEEN ISSUED FROM 2 PM THIS 
AFTERNOON TO 5 AM MST THURSDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 7 
  inches.

* WHERE...Teller and El Paso Counties. The heaviest snow in El
  Paso County will likely occur over the western half of the
  county. 

* WHEN...From 2 PM this afternoon to 5 AM MST Thursday.

* 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.

&&

$$

COZ074-079-080-087-088-171930-
/O.NEW.KPUB.WW.Y.0010.210217T2100Z-210218T1200Z/
Southern Sangre de Cristo Mountains Between 7500 and 11000 Feet-
Wet Mountains between 6300 and 10000 Feet-
Wet Mountains Above 10000 Feet-
Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Feet-
Trinidad Vicinity/Western Las Animas County Below 7500 Feet-
417 AM MST Wed Feb 17 2021

...WINTER WEATHER ADVISORY HAS BEEN ISSUED FROM 2 PM THIS 
AFTERNOON TO 5 AM MST THURSDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 7 
  inches.

* WHERE...Southern Sangre de Cristo Mountains below 11000 Feet,
  Wet Mountains above 6300 Feet, East Huerfano County, and 
  Western Las Animas County.

* WHEN...From 2 PM this afternoon to 5 AM MST Thursday.

* 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.

&&

$$
6 follow-up statements
361 
WWUS45 KPUB 171839
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
1139 AM MST Wed Feb 17 2021

COZ075-180245-
/O.CON.KPUB.WS.W.0003.210217T2100Z-210218T1200Z/
Southern Sangre de Cristo Mountains Above 11000 Feet-
1139 AM MST Wed Feb 17 2021

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

* WHAT...Heavy snow expected. Total snow accumulations of 7 to 
  10 inches.

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

* WHEN...From 2 PM this afternoon to 5 AM MST Thursday.

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

&&

$$

COZ081-082-084-085-180245-
/O.CON.KPUB.WW.Y.0010.210217T2100Z-210218T1200Z/
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-
Colorado Springs Vicinity/Southern El Paso County/Rampart Range
Below 7400 Feet-
1139 AM MST Wed Feb 17 2021

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

* WHAT...Snow expected. Total snow accumulations of 2 to 7 
  inches.

* WHERE...Teller and El Paso Counties. The heaviest snow in El 
  Paso County will likely occur over the western half of the 
  county.

* WHEN...From 2 PM this afternoon to 5 AM MST Thursday.

* 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.

&&

$$

COZ074-079-080-087-088-180245-
/O.CON.KPUB.WW.Y.0010.210217T2100Z-210218T1200Z/
Southern Sangre de Cristo Mountains Between 7500 and 11000 Feet-
Wet Mountains between 6300 and 10000 Feet-
Wet Mountains Above 10000 Feet-
Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Feet-
Trinidad Vicinity/Western Las Animas County Below 7500 Feet-
1139 AM MST Wed Feb 17 2021

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

* WHAT...Snow expected. Total snow accumulations of 2 to 7 
  inches.

* WHERE...Southern Sangre de Cristo Mountains below 11000 Feet,
  Wet Mountains, Huerfano County, and Western Las Animas County.

* WHEN...From 2 PM this afternoon to 5 AM MST Thursday.

* 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.

&&

$$
904 
WWUS45 KPUB 172233
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
333 PM MST Wed Feb 17 2021

COZ075-180645-
/O.CON.KPUB.WS.W.0003.000000T0000Z-210218T1200Z/
Southern Sangre de Cristo Mountains Above 11000 Feet-
333 PM MST Wed Feb 17 2021

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

* WHAT...Heavy snow expected. Additional snow accumulations of 6
  to 8 inches.

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

* WHEN...From 2 PM this afternoon to 5 AM MST Thursday.

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

&&

$$

COZ081-082-084-085-180645-
/O.CON.KPUB.WW.Y.0010.000000T0000Z-210218T1200Z/
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-
Colorado Springs Vicinity/Southern El Paso County/Rampart Range
Below 7400 Feet-
333 PM MST Wed Feb 17 2021

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

* WHAT...Snow expected. Additional snow accumulations of 2 to 5
  inches, highest along and west of the I-25 corridor.

* WHERE...Teller and El Paso Counties. The heaviest snow in El
  Paso County will likely occur over the western half of the
  county.

* WHEN...From 2 PM this afternoon to 5 AM MST Thursday.

* 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.

&&

$$

COZ074-079-080-087-088-180645-
/O.CON.KPUB.WW.Y.0010.000000T0000Z-210218T1200Z/
Southern Sangre de Cristo Mountains Between 7500 and 11000 Feet-
Wet Mountains between 6300 and 10000 Feet-
Wet Mountains Above 10000 Feet-
Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Feet-
Trinidad Vicinity/Western Las Animas County Below 7500 Feet-
333 PM MST Wed Feb 17 2021

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

* WHAT...Snow expected. Additional snow accumulations of 2 to 6 
  inches.

* WHERE...Southern Sangre de Cristo Mountains below 11000 Feet, 
  Wet Mountains, Huerfano County, and Western Las Animas County.

* WHEN...From 2 PM this afternoon to 5 AM MST Thursday.

* 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.

&&

$$
203 
WWUS45 KPUB 172250
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
350 PM MST Wed Feb 17 2021

COZ075-180700-
/O.CON.KPUB.WS.W.0003.000000T0000Z-210218T1200Z/
Southern Sangre de Cristo Mountains Above 11000 Feet-
350 PM MST Wed Feb 17 2021

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

* WHAT...Heavy snow expected. Additional snow accumulations of 3
  to 6 inches, with locally higher amounts possible.  

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

* WHEN...Until 5 AM MST Thursday.

* IMPACTS...Plan on icy and snow packed roads. 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.

&&

$$

COZ081-082-084-085-180700-
/O.CON.KPUB.WW.Y.0010.000000T0000Z-210218T1200Z/
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-
Colorado Springs Vicinity/Southern El Paso County/Rampart Range
Below 7400 Feet-
350 PM MST Wed Feb 17 2021

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

* WHAT...Snow expected. Additional snow accumulations of 2 to 5 
  inches, highest along and west of the I-25 corridor.

* WHERE...Teller and El Paso Counties. The heaviest snow in El 
  Paso County will likely occur over the western half of the 
  county.

* WHEN...Until 5 AM MST Thursday.

* 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.

&&

$$

COZ074-079-080-087-088-180700-
/O.CON.KPUB.WW.Y.0010.000000T0000Z-210218T1200Z/
Southern Sangre de Cristo Mountains Between 7500 and 11000 Feet-
Wet Mountains between 6300 and 10000 Feet-
Wet Mountains Above 10000 Feet-
Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Feet-
Trinidad Vicinity/Western Las Animas County Below 7500 Feet-
350 PM MST Wed Feb 17 2021

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

* WHAT...Snow expected. Additional snow accumulations of 2 to 6 
  inches.

* WHERE...Southern Sangre de Cristo Mountains below 11000 Feet, 
  Wet Mountains, Huerfano County, and Western Las Animas County.

* WHEN...Until 5 AM MST Thursday.

* 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.

&&

$$
570 
WWUS45 KPUB 180654
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
1154 PM MST Wed Feb 17 2021

COZ075-181200-
/O.CON.KPUB.WS.W.0003.000000T0000Z-210218T1200Z/
Southern Sangre de Cristo Mountains Above 11000 Feet-
1154 PM MST Wed Feb 17 2021

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

* WHAT...Heavy snow. Additional snow accumulations of up to 2 to 5
  inches.

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

* WHEN...Until 5 AM MST Thursday.

* 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 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.

&&

$$

COZ081-082-084-085-181200-
/O.CON.KPUB.WW.Y.0010.000000T0000Z-210218T1200Z/
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-
Colorado Springs Vicinity/Southern El Paso County/Rampart Range
Below 7400 Feet-
1154 PM MST Wed Feb 17 2021

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

* WHAT...Snow. Additional snow accumulations of up to 1 to 2
  inches.

* WHERE...Teller and El Paso Counties.

* WHEN...Until 5 AM MST Thursday.

* IMPACTS...Plan on slippery road conditions. Snow packed roads
  will make for a hazardous morning 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.

&&

$$

COZ074-079-080-087-088-181200-
/O.CON.KPUB.WW.Y.0010.000000T0000Z-210218T1200Z/
Southern Sangre de Cristo Mountains Between 7500 and 11000 Feet-
Wet Mountains between 6300 and 10000 Feet-
Wet Mountains Above 10000 Feet-
Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Feet-
Trinidad Vicinity/Western Las Animas County Below 7500 Feet-
1154 PM MST Wed Feb 17 2021

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

* WHAT...Snow. Additional snow accumulations of up to 1 to 3 
  inches.

* WHERE...Southern Sangre de Cristo Mountains below 11000 Feet,
  Wet Mountains, Huerfano County, and Western Las Animas County.

* WHEN...Until 5 AM MST Thursday.

* IMPACTS...Plan on slippery road conditions. Snow packed roads
  will make for hazardous travel conditions for the morning
  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.

&&

$$
841 
WWUS45 KPUB 181046
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
346 AM MST Thu Feb 18 2021

COZ075-181200-
/O.CON.KPUB.WS.W.0003.000000T0000Z-210218T1200Z/
Southern Sangre de Cristo Mountains Above 11000 Feet-
346 AM MST Thu Feb 18 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST EARLY
THIS MORNING...

* WHAT...Snow was decreasing early this morning and is expected to
  come to an end around sunrise. However, roadways will be
  snowpacked and slippery. 

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

* WHEN...Until 5 AM MST Thursday.

* 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 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.

&&

$$

COZ081-082-084-085-181200-
/O.CON.KPUB.WW.Y.0010.000000T0000Z-210218T1200Z/
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-
Colorado Springs Vicinity/Southern El Paso County/Rampart Range
Below 7400 Feet-
346 AM MST Thu Feb 18 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY
THIS MORNING...

* WHAT...Snow was ending early this morning in and around the
  Pikes Peak region. However, roadways across all of the Pikes
  Peak region are snowpacked and icy. Please leave plenty of time
  to get where you need to go this morning. 

* WHERE...Teller and El Paso Counties.

* WHEN...Until 5 AM MST Thursday.

* IMPACTS...Plan on slippery road conditions. Snow packed roads 
  will make for a hazardous morning commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use extreme caution while traveling. 

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

&&

$$

COZ074-079-080-087-088-181200-
/O.CON.KPUB.WW.Y.0010.000000T0000Z-210218T1200Z/
Southern Sangre de Cristo Mountains Between 7500 and 11000 Feet-
Wet Mountains between 6300 and 10000 Feet-
Wet Mountains Above 10000 Feet-
Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Feet-
Trinidad Vicinity/Western Las Animas County Below 7500 Feet-
346 AM MST Thu Feb 18 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY
THIS MORNING...

* WHAT...Snow was decreasing this morning and is expected to come
  to an end most areas around sunrise. If out and about this
  morning, plan for slick and icy roads. 

* WHERE...Southern Sangre de Cristo Mountains below 11000 Feet, 
  Wet Mountains, Huerfano County, and Western Las Animas County.

* WHEN...Until 5 AM MST Thursday.

* IMPACTS...Plan on slippery road conditions. Snow packed roads 
  will make for hazardous travel conditions for the morning 
  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
500 
WWUS45 KPUB 181134
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
434 AM MST Thu Feb 18 2021

COZ075-181245-
/O.EXP.KPUB.WS.W.0003.000000T0000Z-210218T1200Z/
Southern Sangre de Cristo Mountains Above 11000 Feet-
434 AM MST Thu Feb 18 2021

...WINTER STORM WARNING WILL EXPIRE AT 5 AM MST EARLY THIS
MORNING...

Snow showers will last until around sunrise and then come to an
end. 

$$

COZ081-082-084-085-181245-
/O.EXP.KPUB.WW.Y.0010.000000T0000Z-210218T1200Z/
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-
Colorado Springs Vicinity/Southern El Paso County/Rampart Range
Below 7400 Feet-
434 AM MST Thu Feb 18 2021

...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS
MORNING...

Snow showers will last until around sunrise and then come to an
end. Roadways are all snowpacked across all of the Pikes Peak
region. If you will be commuting this morning, please leave extra
time to get to where you want to go. 

$$

COZ074-079-080-087-088-181245-
/O.EXP.KPUB.WW.Y.0010.000000T0000Z-210218T1200Z/
Southern Sangre de Cristo Mountains Between 7500 and 11000 Feet-
Wet Mountains between 6300 and 10000 Feet-
Wet Mountains Above 10000 Feet-
Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Feet-
Trinidad Vicinity/Western Las Animas County Below 7500 Feet-
434 AM MST Thu Feb 18 2021

...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS
MORNING...

Snow showers will last until around sunrise and then come to an
end. Roadways are all snowpacked across all of the Pikes Peak
region. If you will be commuting this morning, please Leary extra
time to get to where you want to go. 

$$

Hodanish

What forecasters said that day

The local office's own words before this winter weather advisory 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 weather advisory went out at Feb 17, 4:13 AM MST, 4 minutes earlier.

Area forecast discussion, Feb 17, 4:13 AM MST, 4 minutes before
Area Forecast Discussion
National Weather Service Pueblo CO
413 AM MST Wed Feb 17 2021

.SHORT TERM...(Today and tonight)
Issued at 341 AM MST Wed Feb 17 2021

Cold air is currently still in place over parts of the area, and
while things have been clearing out overnight, there are still some
low clouds lingering near the CO-KS border.

Today, cloudy conditions will persist over most of the region.
Latest model trends indicate growing confidence in relatively
unstable conditions today and tonight. Lapse rates are looking not
quite dry adiabatic, but for winter fairly robust. Several of the
models have been showing afternoon CAPE values of 200 J/Kg or more,
indicating that we could actually be seeing some isolated areas of
convection and maybe even some thunder snow this afternoon and
evening. The snow is likely to begin around midday, picking up more
as we head later into the afternoon, with most of these convective
snow showers likely over the southern Sangres and Wet Mountains, as
well as the Pikes Peak region. Agreement on snow amounts was
reasonably consistent between the high-res models, and given those
and the potential impacts a few highlights have been issued. The
peaks of the southern Sangres and Wets could be seeing upwards of 7-
10 inches, while the adjacent lower elevations could be seeing 3-6.
Western El Paso County and Teller are expected to get 4-7 inches as
well, while the eastern half of El Paso is only expected 1-3.
However, a few of the models had some convective snow showers moving
slightly more eastward in that area, so an extra shot of quick snow
is not impossible. The snow will last into the evening, but will
dissipate overnight.

Temperatures today will be seasonably normal, with high 20s to mid-
30s expected over most of the area. Lows tonight will be cool once
again, with low teens to single digits anticipated. Wind chill values
should be on the mild side, compared to last weekend, over the
plains, but the higher elevations will remain cold.

.LONG TERM...(Thursday through Tuesday)
Issued at 341 AM MST Wed Feb 17 2021

Thursday...

Cold with lingering morning snow showers on the plains. Additional
snow showers will be possible over the greater S Sangres during the
afternoon. Max temps this date will be pretty uniform with highs
around 30 both over the plains and valleys, with single digits and
10s mtns.

Friday...

Warming up across the region, especially the I-25 corridor region.
Surface flow will be downslope as a strong jet translates across the
state. This will allow temps to rise around 50 along the east slopes
of the mtns with 40s over the rest of the plains. This will likely
be the first day in quite awhile that all of the plains get above
the freezing mark. It will likely get rather windy in the mtns with
gusts in the 40s most of the higher terrain. Some snow showers will
be possible over the central mtns, especially N of Cottonwood Pass.

Saturday...

Warm over the plains with mid 50s to mid 40s most areas. It will
likely be a bit breezy over the lower terrain. Over the mtns, snow
will be on the increase, especially over the central mtns. This
Pacific system will be moving quickly, but I would not be surprised
if we will need some advisories to the c mtns on this day. Some of
this precip will have the potential to push into all of the Pikes
Peak region in the evening.

Sunday...

Cooler all areas with snow showers decreasing in the morning.

Early next week...

Mild and mainly dry. Ensemble guidance is hinting at a more
significant weather system later in the week. \/Hodanish

&&

.AVIATION...(For the 12Z TAFS through 12Z Thursday morning)
Issued at 341 AM MST Wed Feb 17 2021

KALS...VFR conditions are expected to persist over the next 24
hours. Snow showers will be developing in the area this
afternoon/evening, and while some showers may pass close to the
terminal, confidence on a shower moving directly over the site is
low. Winds will be light today, strengthening slightly tonight and
gaining a southeast component.

KCOS...VFR conditions this morning, but potentially convective snow
showers are expected to impact the terminal beginning around 20Z
this afternoon. The snow could be possible heavy at times, although
given the isolated nature of the expected snow any needed TEMPO
groups will likely be issued with the 18Z TAFs. Besides the isolated
snow showers, snow is still expected to impact KCOS this afternoon
and evening. Winds will also steadily increase during the day,
increasing to around 10-15 kts when the snow begins.

KPUB...VFR conditions are expected at KPUB most of today. Later in
the afternoon/evening, likely around 03Z, snow is expected to move
over the TAF site. While the widespread snow should be light, the
isolated pocket of convective snow showers is possible, which could
result in short periods of heavier snow. The snow is expected to
last until the end of the forecast period. Winds will be fairly
light this morning, before taking on a more easterly component this
evening and strengthening slightly.

&&

.PUB WATCHES/WARNINGS/ADVISORIES...
Winter Weather Advisory from 2 PM this afternoon to 5 AM MST
Thursday for COZ074-079>082-084-085-087-088.

Winter Storm Warning from 2 PM this afternoon to 5 AM MST
Thursday for COZ075.

&&

SHORT TERM...GARBEROGLIO
LONG TERM...HODANISH
AVIATION...GARBEROGLIO
Hazardous weather outlook, Feb 16, 6:16 PM MST, 10 hours 1 minute before
Hazardous Weather Outlook
National Weather Service Pueblo CO
616 PM MST Tue Feb 16 2021

COZ058>089-093>099-180130-
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-
616 PM MST Tue Feb 16 2021

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

.DAY ONE...Tonight

Light snow accumulations will be possible, mainly this evening,
over and near some of the mountains areas, especially the Sangre
de Cristo and Wet mountains.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Locally heavy snow showers will be possible along the I-25
corridor and southern mountains Wednesday afternoon and evening.
These locally heavy snow showers will have to potential to drop
several inches of snow during a short period of time. This snow
shower activity may affect the afternoon commute along the I-25
corridor on Wednesday. Across the mountains and high valleys,
snow showers will be possible with a couple of inches of snow
possible.

Another Pacific weather system will move across the region during
the weekend. This system will have the potential to bring some
accumulating snow to mainly the central mountains.

.SPOTTER INFORMATION STATEMENT...

Weather conditions that meet reporting criteria for spotters will
be possible this evening over and near the Wet mountains and the
Sangre de Cristo mountains.

28/28

In the hours before

Local storm report, Feb 17, 1:09 AM MST, 3 hours 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PUEBLO CO
109 AM MST WED FEB 17 2021

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

0107 AM     SNOW             2 NE LEADVILLE          39.27N 106.27W
02/17/2021  M2.3 INCH        LAKE               CO   TRAINED SPOTTER

            0.16 LWE. SNOW AMOUNT FOR THE 24 HOUR PERIOD
            ON THE 16TH.

&&

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 17, 4:17 AM MSTWinter Storm WarningPUBCostilla, Huerfano, Las Animas25 hr

Nearby

Winter Weather Advisories in Colorado, 2021Every winter weather 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.