FXUS65 KBOI 122022
AFDBOI

Area Forecast Discussion
National Weather Service Boise ID
222 PM MDT Sat Apr 12 2025

.SHORT TERM...Tonight through Monday night...A cold front has
moved east with decreasing clouds and breezy west to northwest
winds up to 40 mph. Winds will continue until sunset and ease
thereafter. Temperatures tonight will be in the 10s and 20s in
the mountains and upper 20s to low 30s in the valleys. Sunday
will remain cool and dry, with northwest winds 10-15 mph during
the afternoon, and temperatures similiar to today. A ridge will
build over the area on Monday with the start of a warming
trend. Temperatures warm around 10 degrees on Monday with winds
shifting to the south-southeast.

.LONG TERM...Tuesday through Saturday...A weak 500mb closed low off
of the SoCal coast and a ridge axis just east of our CWA will allow
dry southwest flow to prevail through Wednesday evening. This will
warm temperatures to 5-10 degrees above normal. The closed low is
generating a lot of run-to-run model variability, however the
afternoon deterministic runs haven't changed too much from this
morning's forecast. The closed low is slated to move inland Thursday
morning and amplify the southern periphery of a longwave trough that
the GFS/EC suggest could move directly through our area. As the
trough strengthens and moves south by Friday evening, it becomes a
closed low, stalls over NV/UT, and finally moves east. Despite the
tricky synoptic forecast; current impacts seem minimal outside of
temps cooling to about normal and a 10-30% chance of precip in Idaho
Thursday/Friday.

&&

.AVIATION...VFR through Sunday. Surface winds: NW 15-25 kt with
gusts to 35 kts this afternoon, calming to NW 5-15 kt around sunset.
Winds aloft at 10kft: W-NW 20-35 kt.

KBOI...VFR. Surface winds NW 10-20 kt with gusts 20-30 kt, becoming
5-15 kt after sunset.

&&

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

&&

$$

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SHORT TERM...KA
LONG TERM....JM
AVIATION.....JM