Emmett Weather

054
FXUS65 KBOI 151635
AFDBOI

Area Forecast Discussion
National Weather Service Boise ID
935 AM MST Mon Dec 15 2025

.DISCUSSION...Weak Pacific cold front will pass through our CWA
today with minimal pcpn (snow level 8000-9000 feet), and mainly
north of the Snake Basin in ID. The front will slightly stir
the stagnant air in the valleys but the Air Stagnation Advisory
will stay in effect until 5 AM MST Tuesday. Tuesday will be
several degrees warmer than today as southeast winds increase
ahead of the next Pacific cold front, and Tuesday night will
also be windy and very mild. The cold front Wednesday morning
looks very strong, and we are already considering a High Wind
Watch as it passes through with a rapid wind-shift to west or
northwest. The front will also bring heavier pcpn as described
in the previous discussion (see below). Current forecast aligns
well with latest models. No updates for now.

&&

.AVIATION...Periods of MVFR-IFR in precipitation/low ceilings
beginning this morning for SE OR and this afternoon for SW ID.
Scattered showers will move in from NW to SE today, decreasing
by Tue AM. Snow levels roughly 5-7 kft MSL this AM will rise
from W to E to 7-9 kft MSL by evening. Pockets of freezing rain
at precip onset, mainly around KBKE, KBNO, and KMYL. Mountains
becoming obscured today. Periods of LLWS in E Oregon. Surface
winds: light/variable, then SW-SE 5-15 kt this PM. Gusts of
20-25 kt in SE Oregon and near NV/ID border. Winds aloft at
10kft MSL: W-SW 25-45 kt.

KBOI...VFR. A 15-30% chance of light rain this afternoon and
evening. Surface winds: SE 4-9 kt, periodically becoming light
and variable this afternoon.

&&

.PREV DISCUSSION...
SHORT TERM...Today through Wednesday night...The ridge will
begin to weaken today as a significant pattern shift takes
hold with two distinct rounds of precipitation in the short
term period. First, a weak cold front will move into southeast
Oregon early this afternoon, bringing cooler temperatures,
increasing clouds, and light rain with ridgetop snow to much of
the area. Freezing rain remains a limited threat (014-016-028-033.
OR...Air Stagnation Advisory until 5 AM MST /4 AM PST/ Tuesday
     ORZ061>064.

&&

$$

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DISCUSSION...LC
AVIATION.....CH
SHORT TERM...SA
LONG TERM....SH