322 
FXUS65 KBOI 071010
AFDBOI

Area Forecast Discussion
National Weather Service Boise ID
310 AM MST Wed Nov 7 2018

.SHORT TERM...Today through Friday...A weak upper trough will
bring another round of light snow showers to the West Central
Mountains today. Little additional accumulation is expected.
The showers will taper off this evening as the trough exits to 
the east. Enough clearing exists in the north for patchy valley 
fog this morning, which will lift by noon. A north-northwest flow 
aloft tonight and Thursday will be followed by a weak upper ridge 
Thursday night and Friday for dry conditions across southeast
Oregon and southwest Idaho. Temperatures will remain below 
normal. Lows will be in the teens and 20s, with highs mainly in
the 40s. Record lows in the single digits are possible in Burns 
on Thursday and Friday.

.LONG TERM...Friday night through Wednesday...Good model 
agreement for the weekend as an upper ridge remains off the west 
coast. This allows another cold front to drop into the Pacific 
Northwest in a northwest flow. Little in the way of 
impacts/precipitation are expected with this front as model qpf 
remains light and generally across the Franks Church Wilderness 
Area and the Salmon River. The flow shifts northerly Sunday as the
ridge off the coast amplifies northward. Below normal 
temperatures are expected through most of the extended period. 
This ridge, with 588dm values over California, slides inland 
Monday and Tuesday. Model soundings showing strong inversions 
developing...therefore cooler temperatures than previous forecast 
package can be expected. Models diverge in solutions Wednesday as 
the GFS flattens this ridge, whereas the ECM keeps the ridge in 
place. 

&&

.AVIATION...Generally VFR conditions south and west of a KMYL- 
KSNT line. North and east, expect IFR/MVFR conditions in low 
clouds and fog. Fog dissipating after 07/18z, but afternoon snow 
showers along with mtns obscd will keep IFR/MVFR conditions in the
forecast. Surface winds light and variable through 07/16z, 
becoming W-NW 5 to 15kts. Winds near 10kft, NW5 to 10 kts through 
07/21z, the shift N 10 to 20 kts. 

&&

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

&&

$$

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SHORT TERM...BW
LONG TERM....CR
AVIATION.....CR