Latest high-res
guidance suggests the eastern end of this band will come onshore
across Oswego and Northern Cayuga counties, producing local
accumulating snow. These types of bands often drop their heaviest
snow right near the shoreline given the strong land breeze forcing,
and can have notoriously high snow-water ratios. That said, in the
weak flow environment there is always a good deal of uncertainty as
to whether the heavy snow will fall over the lake or just onshore.
Given this uncertainty, have not raised any additional headlines
yet, but did increase POPS and snow amounts to 3-6 inches in a small
area from Fair Haven to Oswego for tonight. If the heavier portion
of the band stays offshore, amounts will be lower. On the flip side,
if the heaviest portion of the band extends to the shoreline for an
extended period of time, warning criteria amounts are within the
realm of possibility.