Area Forecast Discussion

FXUS65 KBOI 191014
Area Forecast Discussion
National Weather Service Boise ID
314 AM MST Mon Feb 19 2018
.SHORT TERM...Today through Tuesday...Coldest temperatures since 
late December arrive today and will continue through Tuesday. 
Northwest winds of 15 to 25 mph with gusts to 35 mph will make it 
feel even colder with afternoon wind chills in the single digits 
and teens. Diminishing winds and clearing skies tonight will allow
for temperatures will drop to below zero at higher elevations. 
Near-record lows are expected in a few locations, including Burns 
and Baker.
Isolated to scattered snow showers associated with upper trough 
will continue today. Local amounts of a dusting to an inch are 
possible. The showers will decrease tonight and Tuesday in most 
areas as the trough axis shifts east. However, the snow showers 
may continue in south central Idaho tonight near the trough axis 
before exiting to the east on Tuesday. 
.LONG TERM...Tuesday night through Sunday...Slowly moderating 
temperatures but still colder than normal through Sunday. 
Northerly flow aloft will bring several short wave troughs through
our area, each one bringing light snow.  One trough comes in late
Tuesday night and Wednesday morning.  Next trough comes in 
Thursday.  Strongest of the three next weekend. 
.AVIATION...Gusty west/northwest surface winds today through 
20/03Z.  Scattered IFR-MVFR and areas of mountain obscuration in 
snow showers in the mountains, decreasing in eastern Oregon after 
18Z but continuing in Idaho.  Surface winds NW 5-15kt til 18Z 
then 20 to 30 kts from 18Z to 20/03Z.  Gusts to 35kts in the 
Snake Basin from KMUO east.  Winds aloft at 10kft MSL NW 15-20kt.