Beginning with Thursday, a complex low pressure developing somewhere
in the vicinity of the upper Great Lakes will steam off towards the
Hudson Bay with its cold front plowing eastward towards Western NY.
Most precip from the approaching system will likely not arrive until
Thursday night and then continue into Friday. Have nudged several
variables up (wind, temps, and POP) over the blended guidance with
this update to reflect the system approaching and then entering the
Lower Lakes on Friday. After Friday, a progressive pattern develops
which sends the deep mid-level trough over the region quickly off to
the east. Ridging building in aloft and at the surface then takes
over for Saturday into Saturday night. Any left over snow showers or
residual lake snows will more than likely diminish during the day
Saturday and end Saturday night.