598
FXUS65 KBYZ 040901
AFDBYZ

Area Forecast Discussion
National Weather Service Billings MT
201 AM MST Tue Nov 4 2025

.KEY MESSAGES...

- Mild conditions expected through the work week.

- Periods of light showers and breezy conditions at times through
  the week.

- Stronger winds over the western foothills develop late Wednesday
  into Thursday. Impacts to I-90 and US-191 possible.

&&

.DISCUSSION...

Today through Monday...

A progressive pattern with multiple shortwaves moving through the
flow will impact the region this week.

The first short wave arrives today, however, the best chance for
precipitation (40-60%) is limited to the western mountains and
foothills. Above 8,500 ft, precip will fall as snow, with a 60%
chance for at least 1" of snow and up to a few inches expected
over the highest peaks. Over the plains, downslope flow limits
measurable precip, with a less than 15% chance of at least 0.1" of
rain.

Weak ridging builds in Wednesday, keeping conditions mostly dry
for the daytime hours before the next shortwave enters late
Wednesday into Thursday. Precip is once again mostly limited to
the western mountains, with a less than 15% chance of at least
0.1" of rain over the plains. Over the mountains, snow levels fall
a little more, with a 40% chance of a couple inches of snow above
8,000 ft.

Additionally, the Wednesday into Thursday system has the
potential to produce brisk winds across the region, with gusts
around 25-40 mph. Along the US-191 corridor from Big Timber to
Harlowton, there may be westerly gusts over 50 mph (60% chance).
The I-90 corridor in the Livingston vicinity may also see
southwest cross winds gust over 50 mph (70% chance).

Late Friday into Saturday, the best chance for more widespread
precip arrives, although totals still remain light. Currently,
there is a 15-40% chance of at least 0.1" outside of the
mountains, a 50% chance over the Bighorn mountains, and a 60%
chance of a few inches of snow above 7,000 ft in the
Absaroka/Beartooth mountains. Breezy conditions will also
accompany this system, with widespread gusts currently expected
around 25-40 mph.

Late Saturday into Monday, ridging builds in over the region,
bringing mostly dry conditions and warming temperatures.

Highs will be mostly in the 50s to low 60s through Friday.
Saturday is expected to be the coolest day before ridging builds
in, with highs mostly in the 40s. Temperatures then warm into
early next week, returning to 50s to low 60s by Monday. Archer

.AVIATION...

A disturbance and associated cold front are expected to move
through the area today bringing isolated to scattered showers and
a wind shift to the northwest by early afternoon. SW wind gusts
of 25-35 kts are possible at KLVM this morning. VFR is expected to
prevail, though snow will bring obscurations in the mountains. STP
&&

.PRELIMINARY POINT TEMP/POPS...

    Tdy Wed     Thu     Fri     Sat     Sun     Mon
-------------------------------------------------------
BIL 060 035/057 041/060 035/058 035/049 026/050 034/061
    2/W 10/E    00/N    03/W    31/N    00/B    11/B
LVM 058 034/060 039/054 033/054 028/045 024/053 033/061
    5/W 10/E    21/N    15/W    40/B    00/B    11/B
HDN 058 032/061 039/062 032/058 033/047 023/050 029/060
    2/W 10/E    01/B    03/W    51/B    10/B    11/B
MLS 054 027/055 039/061 032/054 033/044 021/046 027/054
    2/B 00/B    00/N    01/B    31/N    00/B    01/B
4BQ 058 031/057 043/060 033/055 034/044 024/046 029/057
    0/B 00/B    00/B    00/B    41/B    00/B    01/B
BHK 052 022/052 035/059 029/052 028/042 018/042 021/051
    1/B 00/B    00/N    00/B    31/N    00/B    00/B
SHR 063 030/062 037/059 029/056 028/045 021/049 028/063
    0/B 00/B    01/B    01/B    52/W    00/B    01/B

&&

.BYZ WATCHES/WARNINGS/ADVISORIES...
MT...None.
WY...None.

&&

$$
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