109
FXUS65 KBOI 132036
AFDBOI

Area Forecast Discussion
National Weather Service Boise ID
236 PM MDT Mon May 13 2024

.SHORT TERM...Tonight through Wednesday night...An upper level
trough will move east of our area tonight, bringing an end to
showers and thunderstorms by early this evening. However, a
second upper level trough will move southeast through central
Idaho late tonight into Tuesday and clip our forecast area. This
will bring a 20-30% chance of showers to the eastern half of
Valley County, but elsewhere it will remain dry. Gusty northwest
winds will develop on the back side of the trough, strongest
from Mountain Home east through the Magic Valley where gusts
around 30 mph are expected. Temperatures will be a few degrees
cooler, but will still be around 5 degrees above normal. An
upper level ridge will build overhead on Wednesday. This will
bring dry conditions and a few degrees of warming, with locally
breezy conditions continuing.

.LONG TERM...Thursday through Monday...An upper level ridge centered
off the coast will continue to bring well above normal temperatures
(5-10 degrees) and dry conditions to the forecast area Thursday and
Friday. Temperatures will moderate closer to normal over the weekend
as an upper trough moves across the Pacific NW and Northern Rockies.
Little moisture expected with this trough with only about a 15-20%
chance of precipitation across Valley County and near the Nevada
border Saturday/Sunday afternoon. There is general agreement that a
more significant trough will move into the Pacific NW region Monday
of next week with a 15-20% chance of precipitation across much of
the higher terrain of SE Oregon and SW Idaho.

&&

.AVIATION...VFR. Isolated to scattered showers and thunderstorms
(15-40% chance) across SW Idaho this afternoon, diminishing by
sunset. Greatest coverage near the Nevada border. Surface winds: SW
to NW 10-20 kt with local gusts to 25 kt decreasing to 10kt or less
after sunset. Winds at 10kft MSL: W-NW 10-20 kt.

KBOI...VFR. There is a 15-20% chance of a shower or thunderstorm
until about 23Z this afternoon. Surface winds: NW around 10 kt with
gusts to 19 kt becoming W-NW less than 10 kt after sunset.

&&

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

&&

$$

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SHORT TERM...ST
LONG TERM....TL
AVIATION.....TL