233
FXUS65 KBOI 260300
AFDBOI

Area Forecast Discussion
National Weather Service Boise ID
900 PM MDT Wed Sep 25 2024

.DISCUSSION...A mostly dry cold front (with the exception of
scattered light rain showers from Baker City to McCall) has
entered SW Idaho this evening and will continue to progress
eastward overnight. The strongest gusts have been from Ontario
to Baker City, but expect gusts to around 30 mph as it moves
across SW Idaho overnight and then subside by early Thursday
morning. A dry westerly flow aloft follows on Thursday, along
with cooler temperatures and generally light winds. No updates.

&&

.AVIATION...VFR. Cold front will continue to move across
SW ID tonight. Scattered -SHRA north of KBKE-KMYL overnight.
Surface winds: S-SW 5-15 kt shifting to the NW with gusts to 25
kt behind the front.

KBOI...VFR. Scattered mid-level clouds. Surface wind S 5-15 kt,
shifting to NW 03Z-04Z behind a cold front.

&&

.PREV DISCUSSION...
SHORT TERM...Tonight through Friday night...Pacific cold front
now inland over the Cascades as of 2 PM MDT. Ahead of it are
gusty southwest winds in eastern Oregon, especially in Harney
County. The front will pass through eastern Oregon this evening
and western Idaho late tonight, weakening as it moves. Front will
still be strong enough for scattered showers and isolated
thunderstorms in northern Baker County this evening, then
scattered showers but no thunderstorms in northern Valley
County/ID overnight. Sunny Thursday and about 8 degrees cooler
than today, with light west/northwest winds. Sunny and several
degrees warmer Friday as a 500 mb high gradually builds northward
from the Great Basin.

LONG TERM...Saturday through Wednesday...Warming will peak
Saturday under southwest flow aloft between the Great Basin
high and the next upper trough from the north Pacific. A dry
cold front will lower temps 5 to 10 degrees Sunday followed
by breezy west/northwest winds. After the upper trough moves
east Sunday night another warming trend with clear skies will
begin under a broad upper ridge over the western states.

&&

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

&&

$$

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DISCUSSION...BW
AVIATION.....BW
SHORT TERM...LC
LONG TERM....LC