892
FXUS65 KBYZ 282157
AFDBYZ

Area Forecast Discussion
National Weather Service Billings MT
257 PM MST Fri Nov 28 2025

.KEY MESSAGES...

- Post-Thanksgiving travel will be impacted into Saturday. Much of
  the area can expect to see 2-6 inches of snow. Be prepared for
  wintry travel conditions.

- Much colder temperatures Saturday through Monday, highs in the
  teens and 20s. Tonight and Saturday night lows in the single
  digits above and below zero for many areas.

- Another system may bring rain/snow showers, Tuesday into
  Wednesday (moderate chance).

- Increased winds for western gap locations ahead of the system
  Monday night into Tuesday.

&&

.DISCUSSION...

Through Thursday...

Snow, moderate to heavy at times was spreading south and east over
the area this afternoon as a shortwave and associated cold front
drop through the region. Temperatures as of 2pm had fallen into
the teens and 20s for many areas, with temperatures expected to
continue to drop. Snow will spread over the area through the
evening, gradually diminishing from west to east overnight into
Saturday morning. Snowfall forecasts remain on track, with a
widespread 2 to 5 inches of snow expected over much of the area
through Saturday morning. Increasing lapse rates and banding off
of the Crazy and Snowy mountains could bring locally higher totals
for areas downwind of the mountains, including the Big Timber
area, and Golden Valley County into southwest Yellowstone County.
Something to watch as we head through the remainder of the
afternoon and evening. Along with the snow, gusty northerly winds
will bring areas of blowing snow, which could significantly reduce
visibility at times. Wet or slushy surfaces will freeze by this
evening, so slow down and take extra time if you have to travel
this evening and tonight. The winter weather advisories remain in
good shape. Temperatures overnight will drop into the single
digits below zero over the west, to the teens over the east into
Saturday morning.

Highs on Saturday will be in the teens to lower 20s most areas
behind the system responsible for the snow. The coldest
temperatures of the season will be over most of the area Sunday
morning. Current forecast has lows in the single digits below and
above zero, coldest over the northeast, though clouds increasing
from the southwest could prevent areas from dropping further.
Highs on Sunday in the teens to 20s can be expected for most
areas. A low dropping south and east through Idaho into Wyoming
may bring a few snow showers to the southwest mountains (20%
chance) on Sunday.

Temperatures will gradually warm back towards normal, with highs into
the 30s to near 40 degrees by mid week. A klondike chinook setup
will bring increasing winds to the western foothills Monday night
into Tuesday. Will need to monitor how much snow is available, and
what temperatures do Monday afternoon, for the potential for any
blowing snow over the western foothills. Another potential upper
trough is progged to cross the Northern Rockies Tuesday/Wednesday
bringing rain/snow chances (40-70%). Still a ton of uncertainty
with timing and precipitation mounts. Northwest flow looks to
keep near to slightly below normal temperatures in place for the
second half of next week. STP


.AVIATION...

A winter weather system continues to bring snow, wind, lower
ceilings, and reduced visibility to all TAF sites through late
tonight/early Saturday morning. MVRF to IFR conditions remain
common, with occasional reductions to LIFR under heavier snow and
blowing snow. Expect mountain obscuration. Surface wind gusts of
20 to 35 kts will continue into tonight, gradually decreasing
Saturday morning. Archer

&&

.PRELIMINARY POINT TEMP/POPS...

    Sat     Sun     Mon     Tue     Wed     Thu     Fri
-----------------------------------------------------------
BIL 007/020 004/020 008/034 023/038 022/033 020/038 028/041
    90/U    00/B    00/B    14/O    42/S    12/S    32/O
LVM 906/027 009/028 011/036 024/038 020/036 019/039 026/043
    80/U    00/B    00/B    36/S    41/B    12/S    33/O
HDN 010/020 902/020 003/035 015/039 020/032 015/039 024/041
    +2/S    00/B    00/B    16/O    63/S    12/O    43/O
MLS 013/016 902/016 001/027 015/035 015/025 012/035 024/037
    92/S    00/B    00/B    13/S    51/E    12/S    42/O
4BQ 014/018 001/021 007/033 018/036 020/028 016/037 026/038
    +2/S    00/B    00/U    02/S    51/E    12/S    42/O
BHK 008/016 909/016 902/026 011/033 009/023 009/034 020/035
    92/S    00/B    00/B    02/S    41/E    12/S    42/S
SHR 006/020 001/025 005/037 015/040 018/033 013/041 022/043
    +2/B    01/B    00/U    14/S    63/S    12/O    43/O

&&

.BYZ WATCHES/WARNINGS/ADVISORIES...
MT...Winter Weather Advisory in effect until 5 AM MST Saturday FOR
      ZONES
      29>32-34-40-42-56-57-63>66-139-141-169-170-172-173-228-235.
     Winter Weather Advisory in effect until 11 AM MST Saturday
      FOR ZONES 33-36-37-58-138.
WY...Winter Weather Advisory in effect until 11 AM MST Saturday
      FOR ZONE 199.

&&

$$
weather.gov/billings