301
FXUS65 KBOI 250325
AFDBOI

Area Forecast Discussion
National Weather Service Boise ID
825 PM MST Sun Nov 24 2024

.DISCUSSION...Skies were clear this evening south and east of
Boise, with partly cloudy skies to the north and west.
Precipitation will move in to eastern Oregon late tonight and
then spread into the mountains of central Idaho Monday. All this
is handled well by the current forecast and no update is planned
at this time.

&&

.AVIATION...VFR with areas of mountain obscuration. Snow
showers developing in mountains of eastern OR early monday
morning. Surface winds: S through E 5-15 kt. Winds aloft at
10 kft MSL: SW 15-30 kt.

KBOI...VFR with SE winds around 10 kt.

&&

.PREV DISCUSSION...
SHORT TERM...Tonight through Tuesday night...A shortwave ridge
continues to move over the area today as a trough remains off
the Pacific NW coast. Southwest flow continues into Monday with
slightly warmer temperatures Monday afternoon. As the trough
slowly moves southeastward, snow showers develop over the higher
terrain of eastern OR on Monday. The trough finally moves inland
on Tuesday and shower chances increase to 60-90 percent. Snow
levels will be around 3500-4500 feet during the precipitation.
Snow amounts will be variable due to the showery nature, but
general snow accumulations of 2 to 4 inches across the
mountains, with higher amounts of 4 to 8 inches over the Elkhorn
and Wallowa Mountains in eastern OR. Showers taper off on
Tuesday evening with cool northwest flow, except near the NV
border where snow showers continue into Wednesday morning.

LONG TERM...Wednesday through Sunday...Cool northwest flow
continues over the long term, keeping temperatures around 5
degrees below normal. A cold front moves across the area on
Friday bringing breezy conditions and light snow showers to the
mountains. Most of the energy will remain to the north, so
accumulations will be minimal. Stagnant conditions expected
Saturday through the following week with poor mixing as a ridge
amplifies over the western US and inversion conditions
developing.

&&

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

&&

$$

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DISCUSSION...SP
AVIATION.....SP
SHORT TERM...KA
LONG TERM....KA