Thursday night into Friday, an area of low pressure will track
northeast across the Central Great Lakes, occluding in the process.
Precipitation will overspread the region as the area of low pressure
tracks across the Great Lakes. First the warm front associated with
the system will track northeast across the area through Friday
morning, followed by the cold front for the late morning into the
afternoon.
Temperatures on Friday will be a bit warmer in the lower elevations,
resulting in rain or a mix of rain and snow. The higher elevations
should stay mostly snow for the day on Friday. As the cold front
passing over the area, and cold air advection brings temps down, any
remaining rain will change over to snow.
Behind the passing cold front, 850H temps in the -10C to -15C range
will help support the potential for a lake response off of both
lakes. Potential lake enhanced and then lake effect would continue
through most of Saturday.
A wave of low pressure and trailing cold front will track across the
area on Sunday, bringing a return to cold temperatures once again.
Lake effect behind this passing system also looks possible with 850H
temps dropping to -15C Sunday night, and cooling even more so from
there.
Temperatures on Friday will be above normal with highs in the mid to
upper 30s, and a low 40s across the lower elevations. Temperatures
for Friday will be heavily dependent on timing of the cold frontal
passage.Temperatures on Saturday and Sunday will be in the low 20s
to near 30.