The clockwise surface wind flow around that high pressure will pump moisture-laden air from the Gulf of Mexico into the Ohio Valley beginning late Sunday into Monday.
Meantime, a cold front will push from the Upper Midwest into the Ohio Valley on President's Day and then stall as it runs into the high pressure system parked off the East Coast.
The front will "ring-out" the moisture in the form of rain, perhaps heavy, beginning Monday and lasting through at least Wednesday of next week.
Rainfall amounts could exceed 2 to 3 inches, which could lead to flooding. If you live in flood-prone areas, you should monitor local water levels as rain returns to the region.
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