Area Forecast Discussion
Issued by NWS Boise, ID

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FXUS65 KBOI 031559
AFDBOI

Area Forecast Discussion
National Weather Service Boise ID
959 AM MDT Mon Aug 3 2020

.DISCUSSION...Gusty winds and not as hot today behind last night`s
cold frontal passage. Strongest winds will blow along the I84
corridor from the Baker Valley through the Snake Plain where gusts
of 25 to 35 mph are expected. High temperatures will be 5 to 8
degrees cooler than yesterday. Current forecast is on track so no
updates.

&&

.AVIATION...VFR under clear skies, but some reduction in
visibility due to haze/smoke. Gusty W-NW surface winds across
open terrain today of 10-20kts with gusts to 30kts. Winds aloft
to 10k feet MSL, west 10-20kts.

&&

.PREV DISCUSSION...
SHORT TERM...Today through Wednesday night...Breezy winds through
the Snake River Plain will accompany cooler conditions today
behind the cold front. Temperatures across the region today will
peak a degree or two below normal. The incoming pacific air will
generate some cloud cover this morning over the Blue and West
Central Mountains and mostly clear out by the afternoon. A
transitory low amplitude ridge will pass over the area on
Tuesday as a low pressure system begins to drop along the Pacific
coast. This will allow for clear skies and temperatures right
around normal. Things will warm up again on Wednesday as the low
digs towards the southeast, causing southerly flow aloft.
Wednesday will be the warmest day of the period, with temperatures
surpassing normal by several degrees with some lower valley
locations nearing 100 degrees. Moisture from the incoming trough
paired with sufficient instability may stir up showers and
thunderstorms over higher elevations of E-central Oregon Wednesday
afternoon.

LONG TERM...Thursday through Monday...There is good agreement among
the models that a large scale trough of low pressure will work its
way eastward over the area for late in the week. The trough will
help cool temperatures to at or below normal, and increase the
chance of precipitation in the mountains. The best chance for high
elevation storminess appears to be Thursday afternoon/evening and
again during next weekend.

&&

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

&&

$$

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DISCUSSION...DG
AVIATION.....DG
PREV SHORT TERM...AL
PREV LONG TERM....MC



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