Scientific Forecaster Discussion
Area forecast discussion
National Weather Service Boise Idaho
839 PM MST Tuesday Mar 3 2015
Discussion...winds have dropped off with sunset and will remain
light the rest tonight for most places...the exception being the
western Magic Valley. Here...drainage winds will keep breezy
conditions into Wednesday morning with wind chills in the teens.
Forecast is on track for tonight so no updates planned.
Aviation...VFR under mostly clear skies. Surface winds...west to
northwest 5-15 kts becoming variable less than 10 kts after 06z.
Winds aloft...northwest 15-25 kts up through 10k feet mean sea level.
short term...tonight through Thursday...cool and dry northerly
flow will continue through Wednesday. Lingering convergence will
produce cloudiness and isolated showers in the Magic Valley
mainly southeast of Twin Falls through this evening. Pressure
gradients will slacken after sunset tonight and winds will
subside. Tonight will be the coldest night of the extended period
with dry air in place and current surface dewpoints 5-15f. Warmer
temperatures aloft will move into the region as a ridge of high
pressure off the West Coast begins to move inland starting
Wednesday. Temperatures each day will warm as the upper level
ridge moves inland over the region with mostly clear skies.
Long term...Thursday night through Tuesday...an upper level ridge
will sit fixed over California though the middle-long term bringing dry
air and increasingly warm temperatures...will see temperatures about
10 degrees above normal by the end of the weekend.
previous short term...ka
previous long term....ab/bw/dd