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000
FXUS65 KBYZ 081955
AFDBYZ

Area Forecast Discussion
National Weather Service Billings MT
155 PM MDT Sat Aug 8 2020

.DISCUSSION...

Tonight through Monday...
Surface high pressure will shift east of Montana this evening
allowing another dry Canadian cold front to push through the area
overnight. Return moisture fetch over far southeastern Montana may
be enough for an isolated thunderstorm or two to develop late
this afternoon, possibly lingering into the early morning hours.
Otherwise a few more clouds and a shift of winds to the north will
be the only impacts from the frontal passage.

Behind the front on Sunday temperatures will be about 10 degrees
cooler with highs in the upper 70s to lower 80s, with plenty of
sun. Northwest winds will be gusty over the eastern plains
through at least early afternoon, diminishing into the evening.
Return moisture pushes back into SE Montana Sunday night for
another chance of isolated overnight thunderstorms, mainly
impacting Carter county.

Upper system over southern Canada shifts well northeast of the
area Monday, with building heights and downslope oriented winds
pushing temperatures back toward 90 degrees under sunny skies. An
isolated thunderstorm over the higher terrain can`t be ruled out,
but otherwise generally dry conditions will continue. Chambers

Tuesday through Saturday...

Zonal flow aloft will start the week off dry and warmer with
highs back in the 90s Tuesday and Wednesday. Precipitation chances
look very low until late Wednesday as another Canadian system
drops into the Pacific Northwest and pushes a series of weak cold
fronts through the area. Even then the precipitation chances will
be below 40 percent and confined mainly to the afternoon/evening
periods Wednesday and Thursday. Highs Thursday through Saturday
look to trend back into the 80s as upper trof remains in place
over the area. Under the trof instability should be enough for a
bit better shower/thunderstorm coverage. Chambers

&&

.AVIATION...
VFR conditions will prevail through tonight. Isolated light
showers/thunderstorms are possible across northern Wyoming into SE
Montana late this afternoon through the overnight hours. Local
MVFR conditions are possible near precipitation with this
activity. Chambers

&&

.PRELIMINARY POINT TEMP/POPS...

    Sun     Mon     Tue     Wed     Thu     Fri     Sat
-----------------------------------------------------------
BIL 058/080 055/086 057/093 061/092 057/088 056/083 055/083
    00/U    00/U    00/U    11/B    21/T    12/T    21/?
LVM 050/084 047/087 050/091 053/089 049/086 048/082 047/083
    00/U    00/U    00/U    12/T    22/T    22/T    22/?
HDN 058/080 055/087 055/094 060/093 057/090 055/084 053/084
    00/U    00/U    00/U    11/U    11/B    11/T    21/?
MLS 063/080 055/086 057/093 064/093 060/089 059/082 055/081
    10/U    10/U    00/U    11/U    21/B    22/T    21/?
4BQ 061/081 056/086 057/093 062/094 059/090 058/084 055/083
    10/U    20/U    11/U    01/U    11/U    11/T    21/?
BHK 058/079 051/085 053/091 060/093 057/089 057/084 052/080
    20/N    10/U    00/U    11/U    21/U    22/T    21/?
SHR 056/082 051/086 055/093 057/093 056/090 054/085 051/084
    11/U    11/U    21/U    11/U    21/T    21/T    22/?

&&

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

&&

$$
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