Alert archive / Colorado / Snow Squall Warnings in 2023

Snow Squall Warning 24, NWS Pueblo, CO

December 8, 2023Alamosa County, Costilla County, Huerfano County, Colorado

NWS Pueblo, CO issued this snow squall warning at Dec 8, 2023, 3:46 PM MST for Alamosa County, Costilla County, Huerfano County, Colorado. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Dec 8, 2023, 3:46 PM MST (22:46 UTC)
Expired
Dec 8, 2023, 4:30 PM MST
In force
44 min
Issued by
NWS Pueblo, CO
Area
Storm-based polygon

Counties Alamosa County, CO, Costilla County, CO, Huerfano County, CO

The radar

The Pueblo radar (KPUX), 150 km from the middle of the area, began a volume at 22:48 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

Albuquerq/Krtlnd, NM (KABQ), launched 12:00Z, 10.8 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, Albuquerq/Krtlnd, NM at 12:00Z on 2023-12-08Temperature 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, Albuquerq/Krtlnd, NM at 12:00Z on 2023-12-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 123 square meters per square second.1939587897Sfc1 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
2075 m above ground
0-6 km bulk shear
71 kt
0-1 km storm-relative helicity
123 m²/s²
0-3 km storm-relative helicity
162 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this snow squall warning 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 snow squall warning went out at Dec 8, 3:34 PM MST, 12 minutes earlier.

Area forecast discussion, Dec 8, 3:34 PM MST, 12 minutes before
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Hazardous weather outlook, Dec 8, 4:14 AM MST, 11 hours 32 minutes before
Hazardous Weather Outlook
National Weather Service Pueblo CO
414 AM MST Fri Dec 8 2023

COZ058>089-093>099-091115-
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-
414 AM MST Fri Dec 8 2023

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

.DAY ONE...Today and Tonight

A potent weather system will affect the region today and tonight.
This system will come across the region in two pieces. The first
piece of energy will move across this morning and early afternoon
and bring snow to the central mountains and Pikes Peak region. Some
of the snow may be briefly heavy. and this will impact the latter
part of the morning rush hour in the Pikes Peak region.

A second, and much more potent, piece of energy will move across the
region very late this afternoon and push south across the area
tonight. This system will impact all of the I-25 corridor region,
bringing period of heavy snow and strong north winds to the area.
Intense snow squalls will be possible, especially early this evening
in the Pikes Peak region. Several additional inches of snow will be
possible in the Pike Peak region this evening into tonight. Steady
moderate to possibly heavy snow will affect the southern I-25
corridor region during the early morning hours Saturday.

Some of the snow will push out onto the plains, and local areas of
one to two inch amounts will be possible

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Ongoing snowfall and gusty northerly winds could produce hazardous
travel conditions across the southern I-25 Corridor and portions
of the southeast plains early Saturday morning, before snow winds
down through mid morning and gusty northerly winds of 20 to 40
mph diminish into Saturday afternoon.

.SPOTTER INFORMATION STATEMENT...

Weather conditions that meet reporting criteria for spotters will
be likely over portions of the region.

23/23

In the hours before

Special weather statement, Dec 8, 11:17 AM MST, 4 hours 29 minutes before
Special Weather Statement
National Weather Service Pueblo Co
1117 AM MST Fri Dec 8 2023

COZ085-086-082000-
Colorado Springs Vicinity/Southern El Paso County/Rampart Range
Below 7400 Feet-Pueblo Vicinity/Pueblo County Below 6300 Feet-
INCLUDING Colorado Springs, Peterson AFB, and Pueblo
1117 AM MST Fri Dec 8 2023

Light, to at times moderate, snow is ongoing across parts of
southern El Paso County and Pueblo County. Visibility may drop to
around 1/2 to 1 mile in any areas of heavier snow. Roads are
expected to remain wet given current temperatures, but slushy
areas are still possible.

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 8, 8:53 AM MSTSnow Squall WarningPUBChaffee, Fremont22 min
Dec 8, 9:15 AM MSTSnow Squall WarningPUBChaffee, Fremont, Teller30 min
Dec 8, 9:47 AM MSTSnow Squall WarningPUBFremont, Teller28 min
Dec 8, 11:11 AM MSTSnow Squall WarningPUBCostilla, Huerfano, Las Animas34 min
Dec 8, 2:16 PM MSTWinter Storm WarningPUBEl Paso15 hr
Dec 8, 2:50 PM MSTSnow Squall WarningPUBChaffee, Lake25 min
Dec 8, 3:01 PM MSTSnow Squall WarningPUBAlamosa, Rio Grande, Saguache29 min

Nearby

Snow Squall Warnings in Colorado, 2023Every snow squall warning in 2023

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.