325
FXUS65 KPUB 041743
AFDPUB

Area Forecast Discussion
National Weather Service Pueblo CO
1043 AM MST Thu Dec 4 2025

.KEY MESSAGES...

- Areas of Dense Fog over parts of El Paso county this morning.

- Snow showers ending over southern half of fcst area early this
morning.

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

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

&&

.UPDATE...
Issued at 946 AM MST Thu Dec 4 2025

Let the Dense Fog advisory expire at 9 AM. Patchy fog will
continue to dissipate along the Arkansas River through Pueblo
county, and there is some fog in the San Luis Valley evident in
KALS airport webcam. This should be diminishing within the hour.
Updated forecast to account for this through 10-11 AM, but due
to limited coverage, any further extensions of advisories is not
anticipated. -KT

&&

.SHORT TERM /THROUGH TONIGHT/...
Issued at 215 AM MST Thu Dec 4 2025

Currently...

Web cams and sfc observations were indicating areas of dense fog in
El Paso county. Worst areas were generally along the Highway 24
corridor from KCOS northeastward towards Peyton. Clouds were also
lowering in Monument per YMCA webcam and Monument hill/Black Forest
area likely in dense fog.

Snow showers at 2 am were still noted over the San Luis valley and
were decreasing.

Today...

Precip over the southern parts of the fcst area will come to an end
later towards sunrise. Areas of fog will likely continue into mid
morning and with conditions gradually improving later in the
morning.

As for sensible weather later today, skies will clear and lots more
sun today. However it will remain cool over the region. Areas with
snow cover will not warm up so much and expect mainly 30s in snow
covered areas. Farther east and south, temps should reach into the
low 40s. Valleys should see highs around 30. A few snow showers may
linger in the San Juans this afternoon.

Tonight...

Cold with mainly clear skies. Expect mainly teens most of plains
with single digits mtns/valleys. Some snow showers possible central
mtns towards sunrise. With the melting snow, some additional fog
cant be ruled out over parts of the region towards sunrise tomorrow
morning.

&&

.LONG TERM /FRIDAY THROUGH WEDNESDAY/...
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. A winter storm
watch has been issued for this general time frame. Most of the snow
will occur north of Cottonwood Pass.

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 /18Z TAFS THROUGH 18Z FRIDAY/...
Issued at 1040 AM MST Thu Dec 4 2025

VFR conditions expected through the day with a good chance of
fog returning over the snowpacked San Luis Valley bringing IFR
conditions to KALS. Odds are quite a bit lower for KCOS and
KPUB as northwest winds aloft increase and drainage winds help
keep any dense fog at bay. Have maintained an MVFR vis for now
in a tempo group for both terminals, but this may be more
confined to the Arkansas River valley before winds increase from
the west Friday morning. -KT

&&

.PUB WATCHES/WARNINGS/ADVISORIES...
Winter Storm Watch from Friday afternoon through Sunday
morning for COZ058-060.

&&

$$

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