Area Forecast Discussion
Issued by NWS Boise, ID

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FXUS65 KBOI 280900

Area Forecast Discussion
National Weather Service Boise ID
300 AM MDT Fri Apr 28 2017

.SHORT TERM...Gusty west/northwest winds again today but not quite
as windy as yesterday.  Northwesterly flow aloft will become
northerly today keeping temperatures down.  Chance of snow showers
again in the central Idaho Mountains and along the Idaho/Nevada
border today as an upper low takes shape in Wyoming and moves south
toward the Four Corners area.  Weak instability in central Idaho
this afternoon but air mass looks too dry for thunderstsorms. Mostly
sunny, warmer, and less windy Saturday as Pacific upper ridge moves

.LONG TERM...Sunday through Saturday.  Sunday through Tuesday looks
to be dominated by a mild northwest flow with a ridge trying to
build off the Pacific coast. Shortwaves passing over the divide will
bring a slight chance of showers to the Idaho Central Mountains, but
otherwise, the area looks mostly dry.  For Wednesday and beyond,
there is much uncertainty as models diverge on how to evolve the
ridge off the coast. Temperatures are expected to be increasing to
near normal with Thursday possibly being much above normal.


.AVIATION...VFR with passing mid-high level clouds. Isolated
mountain showers after 28/18Z through sunset. Surface winds:
West/northwest 5-15 kts with gusts to 25 kts in the afternoon. Winds
aloft near 10 KFT MSL:  North 10-15 kts.

Weekend Outlook...Mostly dry and VFR with another round of mountain
showers possible Sunday afternoon.





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