720
FXUS65 KBYZ 170941
AFDBYZ

Area Forecast Discussion
National Weather Service Billings MT
341 AM MDT Wed Jul 17 2024

.DISCUSSION...
Through Thursday Night...

Today and tomorrow will see rising heights with temperatures in
the high 80s to mid 90s today climbing into the mid to high 90s
for tomorrow. During the day today there will be a 20-40% chance
of showers and thunderstorms mainly for the Beartooth and Bighorn
mountains. Tomorrow a wave will move over the top of the ridge and
bring widespread 30-50% precipitation chances. Chances in the
west will start in the afternoon and exit into the Dakotas during
the overnight. Storms are not expected to be severe as shear
values are generally in the 20-30kt range with little CAPE.
Persistent easterly winds will keep decent moisture in the area
keeping our MinRH values in the 20s for most. Torgerson


Friday through Tuesday...

Upper level ridging will dominate through the extended forecast
period leading to above normal temperatures. Highs will generally
be in the 90s...which is somewhat muted for such a strong ridge
due to weak perturbations and moisture. PWAT values will often be
as much as 120-125% of normal for this time of year...drying out a
bit early next week. This will lead to a chance for showers and
thunderstorms each day...primarily over the mountains and along
the MT/Dakota border region. This time of year strong wind gusts
and significant lightning activity are the main threats with
storms, but with the higher PWAT values we may see a few storms
with locally heavy rain. BT


&&

.AVIATION...

VFR conditions will prevail. Slantwise visibility reductions due
to wildfire smoke are possible from KLVM to KBIL and KSHR.
Isold/Sct showers or thunderstorms are expected mainly over and
near mountains after 18Z. BT

&&

.PRELIMINARY POINT TEMP/POPS...

    Tdy Thu     Fri     Sat     Sun     Mon     Tue
-------------------------------------------------------
BIL 096 064/098 065/094 065/094 063/092 063/092 062/094
    1/U 11/U    31/U    01/U    00/U    00/U    01/U
LVM 092 056/095 056/094 057/092 056/092 055/091 055/094
    1/H 12/T    21/U    11/U    11/U    01/U    11/U
HDN 096 061/099 063/095 062/094 060/092 059/093 058/096
    0/U 11/U    31/U    11/U    10/U    00/U    00/U
MLS 091 064/096 066/091 065/091 064/089 063/090 064/093
    0/U 00/U    42/T    11/U    10/U    00/U    00/U
4BQ 092 064/097 066/092 063/090 062/089 062/090 063/092
    0/U 00/U    32/T    11/U    10/U    00/U    00/U
BHK 088 059/093 062/088 059/088 059/087 059/087 059/090
    0/U 00/U    33/T    11/U    11/U    10/U    00/U
SHR 093 057/096 059/093 057/090 056/089 056/089 055/092
    1/U 11/H    32/T    11/U    01/U    01/U    01/U

&&

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

&&

$$
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