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
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.