Patchy dense fog is present across the northern and northeast Piedmont, with visibilities as low as one quarter mile or less. Fog will persist into mid-morning, with visibilities improving by late morning. Use caution when driving this morning. Slow down, use low-beam headlights, and allow extra time to reach your destination.

* WHAT. Flooding caused by excessive rainfall is possible. * WHERE. Portions of southwest Virginia, including the following areas, Appomattox, Buckingham and Campbell, Bedford, Charlotte, Halifax, Henry and Pittsylvania, Craig, Alleghany VA, Botetourt, Franklin and Roanoke. * WHEN. From noon EDT today through this evening. * IMPACTS. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS. - Expect another round of showers, and possibly a few thunderstorms this afternoon and evening. Locally heavy rainfall on saturated soils could lead to flooding. - http://www.weather.gov/safety/flood