As far as big weather events go, the set up for this rain storm is fairly uncomplicated, at least at its onset. Tuesday night, a cold front pushed south through the Finger Lakes. After spending the day over Pennsylvania on Wednesday, this front will start to work back north Wednesday night. Areas of low pressure will move along the front, bringing rain into the Finger Lakes.
There will be two main periods of rain. The first will be Thursday morning as the front pushes through. Some of the rain may start before the sun rises, but most of the region will see rain during the daylight hours Thursday morning. The eastern Finger Lakes will dry out Thursday afternoon, but showers will linger further west as low pressure moves over the area. This low will slow down and become absorbed by the front, spreading rain back across the Finger Lakes by Thursday night.
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