Lake Effect Summary - January 25-26, 2007

Maximum Snowfall: Lake Erie 6" (Sherman); Lake Ontario 10" (Rochester) 

Duration: 24 hours +/- 

Prime Feature: Northwest flow multiple band event.

Events continued to come fast and furious in the cold pattern change. Successive subtle trofs continued to drop southeast across the region, with one just after midnight on Thursday 25th dropping a general inch or so across most areas. However, as the cold air deepened, a narrow band of heavier snow developed right along the lakeshore of Monroe county and extended southeast into western Wayne County. This dropped 6 to 9 inches in just a few hours from the lakeshore of Irondequoit southeast across Penfield Webster and Pittsford. There was a sharp cut off as the city received only an inch or two. The activity weakened during the day until a 320 flow of arctic air set off multiple bands in the evening, but these only dropped a few more inches all along the lakeshore from Niagara to Oswego County. Off Erie, less activity was observed. A few inches fell during the late morning and early afternoon Thursday but this was at least partially related to a synoptic (frontal) feature.

The event was marginal but id affect a heavily populated area, the first significant snow in the Rochester metro in two years. It therefore earns two ** stars.

Here are some representative reports. 

Off of Lake Erie...

Location Snowfall
Sherman 6 inches
Perrysburg 6 inches
Warsaw 5 inches

Off of Lake Ontario...

Location Snowfall
Rochester lakefront 10 inches
Webster 10 inches
Penfield 9 inches
Pittsford 7 inches
Ontario 7 inches
Sodus 5 inches
Geneva 4 inches


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