In the wake of the cold front, renewed cold air advection will
result in another round of lake-effect showers east of both lakes
rest of Saturday night. Unlike the regime we have been in since last
night, it is colder in the mid-levels with this upper low later this
weekend. Result is higher lake equilibrium levels of 25-30 kft and
sufficient lake induced CAPE for possible thunder with the lake
effect. Lows Saturday night will be in the 40s again for the
Southern Tier and around 50 to the lower 50s on the lake plains.
In the wake of a cold front from the evening/night prior, cooler air
will spill across the region from the northwest (temperatures at
850mb dropping to single digits Celsius). Meanwhile aloft, the
trough responsible for the cold frontal passage will have its
negatively tilted trough axis across the region Sunday. This axis
will then sweep across the lower Great Lakes and into New England
through the end of the weekend and the start of the work week,
causing the winds to shift from southwesterly to northwesterly.
Residual moisture, combined with the cool temperatures aloft will
support general chances for lake and orographic enhanced rain
showers across the region with the best chances lying east/southeast
of both lakes from Sunday through Monday. Drier air will begin to
filter across the region Monday night causing shower chances to
peter out.