664
FXUS65 KBYZ 192018
AFDBYZ

Area Forecast Discussion
National Weather Service Billings MT
218 PM MDT Thu Sep 19 2024

.KEY MESSAGES...

- Dry and quiet weather through Friday afternoon.

- Small chances (10-20 percent) for precipitation Friday night,
  higher chances (20-50 percent) Sunday night into Monday.

- Turning warmer Tuesday through Thursday.

.DISCUSSION...

Tonight through Saturday...

Surface high pressure is control of the weather pattern tonight into
early Friday with dry and quiet weather expected.  A cold front will
move across the region Friday night bringing a few showers to the
area, significant precipitation is not expected. The main impact
from the front will be much cooler temperatures on Saturday with
high confidence that high temperatures will only be in the 60s on
Saturday, cooler in the mountains.

Saturday night through Wednesday...

A fast moving through approaches the region from the Northwest on
Sunday and is expected to sweep through the forecast area Sunday
night through Monday morning. This system will bring higher
chances (20 to 50 percent) for showers, snow in the higher
elevations, Sunday night through Monday morning. After a brief
rebound in high temperatures on Sunday, with highs edging into the
70s, highs will fall back in to the 60s, cooler in the mountains,
across much of the area on Monday.

WPC cluster analysis is indicating high confidence in a ridge
building across the western CONUS by the middle of next week.
This will bring drier and warmer conditions to the region. There
is a 85 percent chance that high temperatures could reach or
exceed 75 degrees on Thursday.

&&

.AVIATION...

Gusty west/northwest winds will subside early this evening at
KBIL, KMLS and KSHR. Look for winds to subside initially at KLVM
this evening, then increase tonight out of the southeast around
06Z at 10 to 15 kts withs gusts to around 25 kt possible.
Otherwise, expect VFR conditions through the TAF period.


&&

.PRELIMINARY POINT TEMP/POPS...

    Fri     Sat     Sun     Mon     Tue     Wed     Thu
-----------------------------------------------------------
BIL 051/076 043/062 040/072 050/068 047/073 049/080 052/080
    01/U    10/U    00/U    13/W    10/U    00/U    00/U
LVM 044/074 035/063 035/074 044/066 040/074 044/081 047/080
    00/N    00/U    00/U    23/W    10/U    00/U    00/U
HDN 046/077 041/063 038/072 045/069 043/074 045/082 048/080
    01/U    10/U    00/U    12/W    10/U    00/U    00/U
MLS 049/076 044/062 038/071 046/069 045/071 047/080 051/080
    00/U    10/U    00/U    02/W    10/U    00/U    00/U
4BQ 048/079 045/062 038/072 046/068 045/071 046/080 051/081
    00/U    00/U    00/U    01/B    10/B    00/U    00/U
BHK 046/077 042/063 035/071 043/070 043/070 044/078 048/080
    00/U    00/U    00/U    01/B    10/B    00/U    00/U
SHR 043/080 041/064 035/074 043/067 040/073 042/083 046/083
    00/U    00/U    00/U    03/W    20/U    00/U    00/U

&&

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

&&

$$
weather.gov/billings