Flood Watch

* WHAT...Flash flooding caused by excessive rainfall is possible.

* WHERE...A portion of central Pennsylvania, including the following areas, Cameron, McKean, Northern Clinton, Northern Lycoming, Potter, Tioga and Warren.

* WHEN...Through late tonight.

* IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas.

* ADDITIONAL DETAILS... - Scattered slow moving thunderstorms and locally heavy downpours will develop this afternoon and linger into this evening. Rainfall amounts could approach 2 to 3 inches in localized areas where slow moving storms persist the longest. - http://www.weather.gov/safety/flood