Saturday clipper..
Saturday, models continue to be in good agreement with a strong
shortwave and associated low passing across our region. While the
low will be filling, there will be a strong wind field with this
low, such that with cold air advection behind the front the
increased mixing heights will allow for gusts to at least 40 mph
across much of the region through the day. This cold front, passing
across the region midday, will also produce a burst of snow though
accumulations will be minor with just an inch or two. Though amounts
will be minor, the quick burst of snow with lowering visibilities
could impact travel early Saturday. Temperatures peaking ahead of
the front will likely fall through the afternoon hours.
There will be a brief window for lake effect snow Saturday Night as
the temperatures at 850 hPa plummet to the low negative teens
Celsius. Moisture and convergence looks to be greatest downwind of
Lake Ontario, though there will still be a fair amount of wind shear
through the boundary layer. Areas across the southern Tug Hill and
then southeast of Lake Ontario could receive several inches to
possibly near advisory level snows Saturday Night. Surface high
pressure will ridge across the Lakes later Saturday Night, ending
the lake snows now to the south of the Lakes as winds become
northerly.
Still snowing after this frame..