LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/...
This period will start off with a deepening cold airmass with 850
hPa temperatures dropping down to around -10 to -14C by Tuesday
morning. This colder airmass will aid in the generation of weak lake
effect snow, primarily east and southeast of the Lakes Sunday night
through Monday night, and possibly into Tuesday. Moisture over the
Lakes will be limited as deeper synoptic moisture remains near a
passing shortwave traveling across the Southeastern States. Another
shortwave will arrive Wednesday of next week with this shortwave
taking a track much closer to our region. This will bring an
increasing chance for widespread, but light snow showers Wednesday
and into Wednesday night. By Thursday the main upper level shortwave
will be pushing eastward with a west to east drying trend.
Temperatures will be near normal this period