Area Forecast Discussion
Issued by NWS Boise, ID

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FXUS65 KBOI 202033

Area Forecast Discussion
National Weather Service Boise ID
233 PM MDT Thu Jul 20 2017

.SHORT TERM...Tonight through Saturday...Mostly clear skies
through Saturday as dry westerly flow remain over the region. An
upper level low moving east across southwestern Canada today will
will shift the flow aloft from southwest to west. A dry weak
cold front will move across the forecast area this afternoon.
Winds will be locally breezy but for most areas the winds will be
less than 15 mph through this evening. Temperatures will remain
around normal through Saturday.

.LONG TERM...Saturday night through Thursday...Warm dry
conditions will continue through Sunday. A trough off the
California coast will begin to shift the westerly flow into
southerly flow on Sunday afternoon, warming temperatures slightly.
Monsoon moisture will move northward over the Great Basin Sunday
afternoon, increasing the chances of thunderstorms thereafter.
Precipitable water values will increase to around 1.00in, or in
the 90th percentile for this time of year. The trough slowly moves
inland on Monday and across SW Idaho sometime on Tuesday
afternoon, keeping a chance of showers and thunderstorms.
Temperatures will be around 5 degrees above normal. After that,
forecast confidence is low for Wednesday and Thursday, although
temperatures should remain slightly above normal.


.AVIATION...VFR. Mostly clear skies with smoke layers. Surface
winds W-NW 5-15kt becoming light after sunset. Winds aloft to 10kft
MSL SW 10-20kt.





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