318
FXUS65 KBOI 060255
AFDBOI

Area Forecast Discussion
National Weather Service Boise ID
855 PM MDT Sat Oct 5 2024

.DISCUSSION...An upper ridge will continue to dominate through
Sunday, accompanied by mostly clear skies, light winds, and a
warming trend. Smoke will be primarily confined to areas near
wildfires in central Idaho. No updates.

&&

.AVIATION...VFR. Areas of smoke reducing visibility. Surface
winds: 5 kt or less overnight. Winds aloft at 10kft MSL: W
10-20 kt.

KBOI...VFR. Surface winds: variable less than 5 kt becoming SE
around 5 kt after midnight.

&&

.PREV DISCUSSION...
SHORT TERM...Tonight through Monday night...A ridge of high
pressure will continue to build over the region this weekend, with a
steady warming trend beginning this afternoon. Winds will be mostly
light, except in the Magic Valley with afternoon westerly winds
kicking up today and tomorrow. Smoke from area wildfires will drain
into the Snake River and Long Valleys tomorrow, with intensity
depending on fire activity. Some hi-res models are hinting at light
high elevation precipitation with a very weak trough moving through
late Monday, but confidence is low with less than a 10% chance of
precipitation.

LONG TERM...Tuesday through Saturday...Southwest flow will keep the
area in a dry and mild air mass through Thursday. Temperatures will
remain 10-15 degrees above normal with valley highs in the low 80s.
Operational models bring a trough into the Pac NW Thursday, crossing
the interior on Friday. There is good agreement with its timing, and
the ensemble mean increases precipitation chances to 15-30% across
the mtns of e-central Oregon and w-central Idaho on Friday. The wave
passes east bringing dry weather back to the region on Saturday.
&&

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

&&

$$

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DISCUSSION...BW
AVIATION.....SP
SHORT TERM...SA
LONG TERM....DG