Io - Storm Summary

Io was a rather benign lake effect snow event that produced a maximum of 11 inches across the north portion of Oswego county off Lake Ontario and about a half foot over the southern half of Erie and the western portion of Wyoming counties off Lake Erie. This event occurred after the passing of a relatviely sharp and quick moving upper level short wave that crossed the Great Lakes Region. The surface weather pattern did not really fit the textbook example necessary to produce lake snow. In fact, the night befor the event developed the surface weather pattern featured an inverted trough over the Appalachians just south of New York State. The pattern eventually evolved into a coastal low off New Jersey. In the wake of the low a westerly flow developed over Lakes Erie and Ontario for about a 6 to 12 hour period of time. After all of the snow that had fallen thus far into the season, the impact that this event had on the area as a whole was not that big.
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