Scientific Forecaster Discussion
Area forecast discussion
National Weather Service Boise Idaho
252 PM MDT Wednesday Oct 1 2014
Short term...tonight through Friday...northwest flow aloft on the east
side of a ridge will help keep the area dry through Friday and
beyond. We will see temperatures warm slightly each day. Skies will be
mostly clear through the period with light to moderate winds.
There is no chance of precipitation. In the agricultural areas...
we issue a frost advisory when the forecast minimum temperatures get to
36 degrees or less. We are very close to that point over parts of
the Snake River Valley tonight...but expect only isolated spots of
frost at best. Therefore no advisory is warranted in this
Long term...Friday night through Wednesday...a strong ridge of
high pressure /with axis along the West Coast/ will remain quasi-
stationary through the upcoming weekend. Expect mostly sunny skies
and temperatures in the upper 60s to upper 70s Friday through
Sunday. Ridge will shift inland early next week for a continuation
of warm and dry weather. Upper level pattern will weaken by middle-
week...with upper level flow trending zonal late Wednesday.
Aviation...widespread VFR. Few-to-sct cumulus clouds /bases
around 9k feet mean sea level/ across higher terrain through evening. Shallow
fog possible between 10z and 14z Thursday morning. West-northwest surface
winds between 5 and 15 kts 03z...then trending light and terrain-
driven after 03z. Northwesterly winds aloft will average 20 kts
through 10k feet mean sea level.
Short term...snow pellets