Lake Effect Summary - December 7-8, 2006
Maximum Snowfall: Lake Erie 9"
(Mayville, Stockton); Lake Ontario 11" (Palermo)
Duration: 30 hours +/-
state WNW flow.
The coldest air of the young 2006-07 season set off the lake effect machine once again for this event. A sharp cold frontal passage overnight on
6-7th was followed by the typical upslope flow which brought a few inches to higher elevations of the western southern tier during the
morning and midday of 7th. The activity became a bit more cellular in the afternoon as a secondary trof crossed, but activity
consolidated along the southeast shore of Lake Ontario during the evening of the 7th when snowfall rates of 2-3" per hour were noted in
a single intense band which drifted slowly south across Oswego, Cayuga and eastern Wayne counties. This activity drifted even further south and west
into the Rochester metro area for awhile Friday morning (8th) and dropped a few inches, snarling rush hour traffic. It should also be
noted that a single intense NNW band off Lake Huron dropped up to three feet on London, Ontario, but this band meandered enough as it reached far
western Chaut County and NW Pa to preclude huge accumulations on this side of the border. All activity shut down later Friday as high pressure
moved in and lowered the cap.
The event was marginal but briefly intense and affected a decent amount of population including a Rochester rush hour. It therefore earns
two ** stars.
Off of Lake Erie...
Off of Lake Ontario...
||2 to 4 inches