Area Forecast Discussion
Issued by NWS Boise, ID

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FXUS65 KBOI 151009

Area Forecast Discussion
National Weather Service Boise ID
309 AM MST Thu Nov 15 2018

.SHORT TERM...Today through Friday...
Dry, northwest flow will continue today that will support above
normal temperatures for the mountains and near normal temperatures
for the lower elevations that remain under an inversion. Increasing
mid to high clouds are expected tonight as a trough starts to dig
over the region. High resolution models are hinting at the
beginning of light precipitation over the central Idaho mountains
by late Friday morning. However, the best chance for rain/snow
will be Friday afternoon and evening when the brunt of the trough
pushes southward across the area. With that being said, only
light snowfall amounts are anticipated at this time above 5000
feet for Baker County and central Idaho mountains.

.LONG TERM...Friday night through Wednesday...The aforementioned
trough and accompanying cold front slide south into southeast
Idaho by Friday night. Any light snow shower activity in the
central Idaho mountains will dissipate by Saturday morning. Sunday
is dry and cool as an upper ridge builds in from the coast. It
gradually shifts eastward through Tuesday. Wednesday is looking
drier as the ECMWF model has trended slower with bringing a trough
into the region while the GFS holds onto a weak ridge.
Temperatures are below normal at lower elevations as the
strengthening inversion will cap warming. Mountain locations will
remain above normal, gradually warm through Tuesday.


VFR. Increasing mid to high clouds from the northwest. Surface
winds will remain light and terrain-driven next 24 hours.
Winds aloft through 10 KFT MSL: West-northwest 10-20 kts.





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