Lake Effect Storm Grasshopper January 19-20, 2007
Maximum Snowfall: Lake Erie 12"
(Ellicottville); Lake Ontario 17" (Constantia)
Duration: 18 hours +/-
intense westerly flow.
January's second event followed closely on the heels of a sharp cold front which crossed the region early on
Friday 19th. A moist westerly flow was primed and even though it was only marginally cold enough,
the moisture in lower levels was enough to set off the activity, which primarily focused on Oswego county for
much of Friday midday and afternoon before settling southward as winds veered. Rates on up to two inches per
hour were noted Friday afternoon along with several reports of thunder. The Erie activity was more spread out
and multiple but did pile up on some of the ridges and ski areas. Ridging and increasing shear broke up the
activity Saturday morning.
Total amounts were as much as 12-18" over much of Oswego County, although the city had closer to 6". A foot
also fell over Ellicottville, much to the delight of the ski community. Rochester also caught a few inches.
The event was a brief but intense one, and did focus on some population areas in Oswego County. It
therefore earns two ** stars.
Off of Lake Erie...
Off of Lake Ontario...