522
FXUS65 KBYZ 211901
AFDBYZ

Area Forecast Discussion
National Weather Service Billings MT
101 PM MDT Sat Sep 21 2024

.DISCUSSION...

Through Monday night...

A quiet weather pattern expected for the next 48 hours. Residual
low level cloud cover this afternoon will dissipate after 6pm,
along with wind speeds. Can`t rule out patchy fog development for
area river valleys after midnight. Frost potential also exists for
area foothills and portions of SE Montana around sunrise, so make
plans to protect tender vegitation tonight. Flow aloft tomorrow
will be zonal and fairly light keeping skies mostly sunny and
temperatures in the low-mid 70s. Sunday night a weak disturbance
drops in from the northwest and pushes a dry cold front through
the region. This feature will drop temperatures Monday afternoon
to around the 70 degree mark and bring breezy to locally gusty
northwest winds to the region. Chambers

Tuesday through Saturday...

Uneventful weather pattern continues for the extended period.
Main sensible weather change will be temperatures warming into the
mid-80s by Wednesday as a strong ridge aloft builds over the
region. The warm temperatures look to persist into the end of the
work week, though there is some hint that a Pacific cold front may
make it into the area by Thursday afternoon taking the edge off
of temperatures for Thu into the weekend (back into the 70s). Even
the solutions showing the front moving in late week do not show
much if any precipitation. Chambers

&&

.AVIATION...

VFR conditions will prevail through tonight. That said there are
low chances (20-30percent) for fog development along area river
valleys tonight. Have kept this mention out of TAF locations due
to their elevated locations, but will keep an eye on this tonight.
Northwest winds gusting 15 to 25 kts @18z over SE Montana will
diminish through the afternoon. All areas will see light and
variable winds around 00z this evening. Strata- Cu will lift from
3-4kft AGL to 5 to 7kft AGL as the afternoon goes on, with clear
skies expected by 02z. Chambers

&&

.PRELIMINARY POINT TEMP/POPS...

    Sun     Mon     Tue     Wed     Thu     Fri     Sat
-----------------------------------------------------------
BIL 040/074 053/073 048/077 052/085 055/085 051/082 050/071
    00/U    01/B    00/U    00/U    00/U    00/U    11/U
LVM 034/075 044/071 042/079 048/085 050/083 047/082 043/070
    00/U    11/B    00/U    00/U    00/U    00/U    11/U
HDN 037/074 047/073 044/078 047/087 050/087 048/083 047/073
    00/U    01/B    00/U    00/U    00/U    00/U    11/U
MLS 038/073 049/071 045/076 050/086 055/086 051/082 052/073
    00/U    00/B    00/U    00/U    00/U    00/U    00/U
4BQ 037/073 046/071 045/075 049/085 055/087 052/084 053/074
    00/U    00/B    00/U    00/U    00/U    00/U    00/U
BHK 035/070 045/070 043/076 047/084 051/086 049/081 048/074
    00/U    00/B    00/U    00/U    00/U    00/U    00/U
SHR 034/076 044/071 041/077 045/088 050/088 048/085 046/074
    00/U    02/W    00/U    00/U    00/U    00/U    01/U

&&

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

&&

$$
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