Wednesday, Jul 30th

Last updateWed, 30 Jul 2014 8am

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Flooding concerns grow with heavy rain in forecast

Halifax County and surrounding areas are bracing for rising floodwaters as several rounds of showers and thunderstorms with heavy rainfall will result in a potential for flash flooding through Wednesday.

The National Weather Service in Blacksburg issued a flood warning for the Dan River region as flooding is expected to occur along much of the Dan River and the lower Roanoke River over the next several days due to forecast rainfall of two to four inches.

The flood warning is in effect from late Wednesday night until Sunday afternoon.

At 10 a.m. Tuesday the stage was 8.8 feet, according to the National Weather Service. Flood stage is 19 feet.

The forecast calls for moderate flood with waters rising above flooding stage by early Thursday morning and continuing to rise to near 27.2 feet by early Friday afternoon.

The river will fall below flood stage by early Sunday morning, according to Weather Service predictions.

At 29 feet a number of businesses in the Riverdale area are   affected. 

This crest compares to a previous crest of 27.1 feet on Jan. 3, 2007.

According to the National Weather Service, these river forecasts are based almost entirely on forecast rainfall, not observed rainfall. Any deviations that occur from this forecast of rainfall will affect the stages considerably.

Flooding is expected to result from a large and slow moving storm system that is drawing very moist air into the Appalachian Region from the Gulf of Mexico through Wednesday.

The passage of a cold front on Wednesday will result in multiple periods of heavy rain with embedded thunderstorms, according to the forecast.

Motorists are urged not to drive through flooded areas as the water may be much deeper than it appears.