Area Forecast Discussion
Issued by NWS Boise, ID

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FXUS65 KBOI 231028

Area Forecast Discussion
National Weather Service Boise ID
328 AM MST Wed Jan 23 2019

.SHORT TERM...Today through Friday...Rain and snow will continue
today as a moist northwest flow aloft remains over the region.
Snow levels will be near valley floors this morning and rise to
around 4000-5000 feet in the afternoon. Additional light snow
accumulations of up to a half inch are expected in the valleys
this morning. Another 1-3 inches (locally 4 inches) are expected
in the northern mountains today. A Winter Weather Advisory is in
effect today for the Upper Weiser Basin and West Central
Mountains. The northwest flow will become drier tonight resulting
in decreasing showers overnight. The drier northwest flow aloft
will continue through Friday. An upper disturbance will generally
remain to our east on Friday, but will track close enough for a
chance of snow showers east of McCall Friday afternoon.
Temperatures will be around 5 degrees above normal each day.

.LONG TERM....Friday night through Tuesday...Upper level ridge
will remain off the West Coast through the extended period with
temperatures around 5-10 degrees above normal. A cold front in BC
will move southeastward along the Continental Divide on Sunday
afternoon, with snow showers generally staying east of McCall and
Stanley. Temperatures will lower to near normal or slightly below
normal behind the front with continued dry conditions.


.AVIATION...MVFR to IFR conditions in snow this morning generally
from BNO MUO JER and areas north. Mountains obscured. Snow will
become less widespread and showery in nature by 12z/Wed and
continue through the afternoon along the higher terrain in Idaho.
Surface winds variable 5-10kt becoming westerly 5-15kt during the
afternoon. Winds aloft at 10kft MSL: NW 30-40kt increasing to NW
50-60kt by 15z/Wed and decreasing to NW 20-30kt by 00z/Thu.


ID...Winter Weather Advisory until 5 PM MST this afternoon IDZ011-033.



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