A strong cold front will blast
through the area with gusty cold advection likely on Monday.
Inversion height rise rather rapidly and lake-induced instability
maximizes southeast of the lakes on Monday. This will be especially
true over Lake Ontario. Shear in the unstable layer reduces and a
period of maybe 9 or so hours of lake effect snow seems likely
southeast of the lakes. At the moment, with the better instability
and fetch off of Lake Ontario, accumulations were ramped up there,
however model trends will need to be monitored as higher resolution
guidance becomes available, as headlines in briefly moderate/heavy
lake effect snow may be possible.