A flood watch goes in effect at 10 pm tonight and expires at 11 am Thursday as a strong low-pressure system over the Ohio Valley will move east today and will push a cold front through the Mid Atlantic region on Thursday. This system will produce widespread moderate to heavy rainfall tonight into Thursday morning. 1 to 2 inches of rain is expected. The highest amounts will be along the Blue Ridge.
Much of the expected rainfall will runoff into local streams and creeks since the ground is frozen or still saturated from rainfall last weekend. Small streams and creeks may overflow their banks. Areas of poor drainage will also be prone to flooding. Roads near streams and creeks. Tributaries of the Roanoke and Dan Rivers may also flood. These rivers may rise above action or flood stage Thursday or Friday.
You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.