781
FXUS65 KBOI 171552
AFDBOI

Area Forecast Discussion
National Weather Service Boise ID
952 AM MDT Tue Jun 17 2025

.DISCUSSION...Clear skies today as a dry and more stable air
moves into the region. Westerly flow will bring breezy winds to
open terrain which will see gusts of 15 to 25 mph this
afternoon with slightly higher gusts across s-central Idaho.
Temperatures are within a couple degrees of yesterday`s highs
(cooler in SW Idaho and generally warmer for SE Oregon). Current
forecast is on track for today.

&&

.AVIATION...VFR with some intermittent high clouds. Surface
winds: W-NW 5-15 kt, with higher gusts up to 30 kt over the
Camas Prairie and Magic Valley becoming variable less than 10
kt. Winds aloft at 10kft MSL: SW-NW 10-20 kt.

KBOI...VFR. Surface winds W-NW 5-10 kt with gusts to 15 kt
becoming variable less than 5 kt overnight.

&&

.PREV DISCUSSION...
SHORT TERM...Today through Thursday night...Weak ridging will
develop today as Monday`s trough continues east. Temperatures
will be slightly cooler today in the wake of the trough, but
still above normal. The ridge will strengthen and amplify over
the Intermountain West Wednesday and Thursday, positioning the
forecast area under warm southwest flow aloft. Temperatures both
Wednesday and Thursday will range 5 to 10 degrees above normal.
Meanwhile, a notable Gulf of Alaska low will track south along
the Pacific Northwest Coast on Thursday, helping to further
amplify the ridge while nudging it toward the east.

LONG TERM...Friday through Tuesday...As the aforementioned low
finally moves onshore Friday, windy conditions will emerge over
east Oregon and southwest Idaho. The trough and associated cold
front should arrive by mid-day Friday, cooling the max
temperatures by approximately 5 to 10 degrees from Thursday.
Shower and thunderstorm chances will trend upward (20-40%) for
northeast OR and west-central ID with the cold front. Cooler
air will become re-inforced on Saturday as the low center moves
overhead. Gusty winds will continue, with max temperatures
dropping by an additional 10 to 20 degrees area-wide. Shower
chances are forecast to increase to 50-75% for northern areas
and 20-45% for southern areas. Snow levels may dip as low as
5500-7500 feet MSL over the weekend and allow the potential for
light snow to fall on high terrain. Currently, the most
favorable area for light snow will be the mountains of w-central
Idaho Saturday into Sunday.

The main low center will begin to weaken as it moves
northeastward Sunday, but troughing will persist over the
Northwest U.S. Lighter winds are anticipated Sunday, while max
temps rebound by a couple of degrees for the afternoon. With
this pattern lingering into early next week, mid level
instability may keep shower activity around. The temperature
forecast becomes less certain Tuesday as models diverge with
depicting the trough evolution.

&&

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

&&

$$

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DISCUSSION...DG
AVIATION.....SA
SHORT TERM...SH
LONG TERM....SH