There remains uncertainty to the track and timing of this storm
system for Thursday and Friday. The 12Z deterministic run of the GFS
is now in better agreement with the 12Z Canadian in maintaining the
eastward track of of the deepening coastal low, which will aid in
pulling colder air southward across our region. Though model
guidance continues to trend a tad colder, will continue to mention
the possibility of mixed precip with this system Thursday - early
Friday. Regardless, any mixed precip that may clip the CWA will
change over to all snow by Friday as colder air filters in. While
it`s still too early to pin down any specifics, and with the
exception of any mixed precipitation that may nudge into the region,
significant snowfall accumulations for the majority of the area are
possible Thursday morning and into Friday.
In terms of temperatures, the cold streak will continue with highs
remaining below normal.
&&
.LONG TERM /FRIDAY NIGHT THROUGH MONDAY/...
Northwest flow behind exiting system will transition synoptic-scale
precipitation over to lake enhanced/lake effect snow Friday night
into Saturday. High pressure and drier air will build in and
diminish the lake effect snows Sunday.