945
FXUS65 KBOI 192011
AFDBOI

Area Forecast Discussion
National Weather Service Boise ID
211 PM MDT Sat Oct 19 2024

.SHORT TERM...Tonight through Monday night...A warming and
drying trend will continue across the region through Sunday as
an upper-level ridge develops over the region. Temperatures will
be warmer tonight with the warmer air mass in place and thus
expect temperatures to remain above freezing across the lower
valley.

The next upper level trough will approach the area on
Sunday. This will bring temperatures about 5-8 degrees above
normal. The trough will continue across the region overnight
into Monday though it significantly weakens as it moves east
across the Northern Rocky Mountains. Precipitation totals remain
on the low end as amounts look to average less than a tenth of
an inch across our northern zones Monday. Ensembles showing
about a 30% chance of a quarter of inch or more of precipitation
above 7000 feet. Snow levels lower through late Monday,
although only the highest peaks (above 9000 feet) would receive
any light accumulations. Locally breezy southwest winds develop
Monday afternoon ahead of the front in the higher elevations
while temperatures remain above normal. Temperatures remain
about 4-6 degrees above normal across much of the area on
Monday. Northern zones will see temperatures near normal.

.LONG TERM...Tuesday through Saturday...An upper ridge will
build over the region as an upper low develops off the west
coast. This will hold temperatures 5-10 degrees above normal and
keep winds fairly typical. As the trough axis of the low moves
inland on Friday, it will provide just enough forcing and
moisture to support a 15-25% chance of precipitation to the
northern portion of our area. The trough will make Friday
afternoon a little windier. A brief period of southwest flow
aloft develops before another low is slated to impact our
weather after the long term.

&&

.AVIATION...VFR. Scattered mid-high clouds, mainly in
the north. Surface winds: variable less than 10 kt. Winds aloft at
10kft MSL: generally N 10-20 kt.

KBOI...VFR with variable winds less than 10 kt.

Sunday Outlook...VFR with scattered mid and high clouds.
Variable surface winds 10 kt or less.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...None.
OR...None.

&&

$$

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SHORT TERM...JDS
LONG TERM....JM
AVIATION.....JM