763
FXUS65 KPUB 050010
AFDPUB

Area Forecast Discussion
National Weather Service Pueblo CO
510 PM MST Thu Dec 4 2025

.KEY MESSAGES...

- More wind driven snow for the central mtns late Friday into
  Saturday.

- Gradual warming trend (and mainly dry except central mtns) in
  the extended

&&

.UPDATE...
Issued at 507 PM MST Thu Dec 4 2025

Went ahead and issued a Dense Fog Advisory for Crowley, Otero
and Bent counties, with dense fog already being reported in La
Junta and an area of fog growing on satellite imagery. Areas
with the lowest visibilities should be right along Highway 50
and the Arkansas River through those counties. Will continue to
monitor since expansion east and west may be needed later this
eve. Moore

&&

.SHORT TERM /THROUGH FRIDAY/...
Issued at 224 PM MST Thu Dec 4 2025

Temperatures have been slow to recover due to light winds over
the snow covered areas. Current temperatures are still hovering
in the mid to upper 20s along the Arkansas River through Pueblo
and in the San Luis Valley while in the 30s to low 40s
elsewhere. With clear skies over the region tonight, it will be
cold over the snow covered areas due to efficient radiational
cooling for the first half of the night, and have leaned
towards the colder side of the model blend solutions. Areas of
fog will be likely across the San Luis Valley where strong
inversions will develop. It is a little more amorphous as far as
fog formation for Pueblo and Colorado Springs as north to
northwesterly drainage winds increase (especially just off the
surface) towards morning under strengthening northwest flow
aloft ahead of the next system. Some patchy ground fog could
develop early then erode as winds aloft increase. Have kept fog
in the grids across the San Luis Valley and the lower Arkansas
River valley for now.

Otherwise, temperatures will rebound a few degrees tomorrow,
especially near the mountains were westerly winds will increase.
High clouds could wreak havoc on the warm up where winds remain
light and mixing more limited over the snow covered areas
farther from the mountains. Overall a mix of 30s and mid 40s for
the plains with 20s and 30s for the mountains and valleys. Snow
starts to spread into the central mountains during the afternoon
as the next system approaches from the northwest. -KT

&&

.LONG TERM /FRIDAY NIGHT THROUGH THURSDAY/...
Issued at 215 AM MST Thu Dec 4 2025

A couple of disturbances will move southeast in the northwest flow
pattern aloft, and this will bring additional snow to the central
mtns during the Friday/Saturday time frame. Best chance of wind
driven snow will be overnite Friday into Saturday. The winter
storm watch has been upgraded to a winter storm warning for the
central mountains with the Leadville area included in a Winter
Weather Advisory for this time period. Most of the heavier snow
will occur north of Cottonwood Pass though there will still be
the potential for significant impacts to travel due to blowing
snow over Monarch Pass as well.

Thereafter, northwest flow will continue aloft, but heights will
gradually rise and the gradient will slacken. This will allow for a
gradual warming trend over the entire fcst area with mainly dry
weather. The only exception will be for some passing snow showers
over the central mtns. /Hodanish

&&

.AVIATION /00Z TAFS THROUGH 00Z SATURDAY/...
Issued at 433 PM MST Thu Dec 4 2025

Mostly clear skies expected across the state as dry northwest flow
aloft settles in. VFR conditions forecast through approx. 10z for
the forecast area, which includes the three main TAF sites of KCOS,
KPUB and KALS. Starting around 10z there is a chance for fog to
redevelop due to the snowpack, especially for KALS so maintained IFR
to LIFR conditions there through 16z. Maintained TEMPO group for
KCOS and KPUB from 10z to 14z for MVFR vsby due to patchy fog, but
less confidence for those sites. VFR conditions for all area by 19z
tomorrow.

&&

.PUB WATCHES/WARNINGS/ADVISORIES...
Winter Storm Warning from 11 PM Friday to 11 PM MST Saturday
for COZ058-060.
Winter Weather Advisory from 11 PM Friday to 11 PM MST
Saturday for COZ059.
Dense Fog Advisory until 7 AM MST Friday for COZ089-093-097.

&&

$$

UPDATE...MOORE
SHORT TERM...KT
LONG TERM...HODANISH
AVIATION...MOORE