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

* WHERE…A portion of central Pennsylvania, including the following areas, Columbia, Montour, Northern Clinton, Northern Lycoming, Northumberland, Potter, Snyder, Southern Clinton, Southern Lycoming, Sullivan, Tioga and Union. *

WHEN…From this afternoon through Tuesday morning.

* IMPACTS…Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations.

* ADDITIONAL DETAILS… – Heavy rain rates 1-2 inches per hour are possible with training thunderstorms and could result in localized rainfall amounts in excess of 3 inches over a short duration. http://www.weather.gov/safety/flood

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.