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FXUS65 KBOI 270927
AFDBOI

Area Forecast Discussion
National Weather Service Boise ID
327 AM MDT Tue Jun 27 2017

.SHORT TERM...Today through Wednesday...Nocturnal thunderstorms
were aided by an outflow boundary as it tracked southeastward,
but were mostly supported by an upper trough tracking through
eastern Oregon. Isolated showers continue in SE Oregon, with
isolated showers and thunderstorms in SW Idaho. The activity will
continue to shift out of the area as the upper disturbance and
trough move to the east by midday. A stalled frontal boundary
will maintain scattered showers and isolated thunderstorms in the
West Central Mountains (mainly north of McCall) this afternoon and
evening. A weak and (mostly) dry cold front will move through the
region tonight. Cooler temperatures will follow on Wednesday,
with highs slightly below normal. Northwest winds will be locally
breezy both afternoons, mainly east of Mountain Home.

.LONG TERM...Wednesday night through Monday...The upper level
trough will exit the region Thursday with another upper level
ridge moving in for Friday. The ridge weakens though as another
upper level trough approaches the northwest coast Saturday moving
across the Pacific northwest Saturday night. There is a slight
chance of afternoon showers/thunderstorms Saturday night with the
trough passage. The ridge rebuilds Sunday over the Northern
Rockies as another large trough pushes southward along the Western
Canadian coast reaching the Pacific Northwest on Tuesday.
Temperatures will remain around normal through the Holiday
weekend.

&&

.AVIATION...VFR. Isolated thunderstorms will continue across the
West Central and Boise Mountains through this evening. The
remainder of the region will be dry with mostly clear skies.
Surface winds, west-northwest 10-20 kts with gusts 25-35 kts in
and around thunderstorms. Winds aloft to 10k feet MSL, westerly
15-30 kts.

&&

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

&&

$$

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SHORT TERM...BW
LONG TERM....JS
AVIATION.....JS
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