Flood Advisory

* WHAT...Flooding caused by excessive rainfall is expected.

* WHERE...Southwestern Cabarrus County in the piedmont of North Carolina...

* WHEN...Until 1215 AM EDT Wednesday.

* IMPACTS...Nuisance flooding of low-lying areas adjacent to streams and other poor-drainage areas, including farmland, parks, greenways, boat-access areas, golf courses, underpasses, and parking lots. Isolated, shallow flows over roadways is possible. A few flood-prone, low-water crossings may become impassible. A small culvert washout or two is possible.

* ADDITIONAL DETAILS... - At 609 PM EDT, Doppler radar and automated rain gauges indicated torrential rain due to a stationary thunderstorm south of Mount Pleasant and east of Harrisburg near Midland. Between 1 and 2 inches of rain have fallen so far, but an additional inch or more of rainfall is possible before the causative thunderstorm weakens or drifts away from the area. Given wet antecedent conditions across southern Cabarrus County from multiple rounds of thunderstorms over the past week, excessive runoff is likely to cause rapid small stream rises and areas of adjacent lowland flooding. Poorly draining intersections and low spots along roadways are likely to flood. Exercise caution when encountering ponding and avoid flooded roadways. Areas of greatest concern include along Reedy Creek near Lower Rocky River Rd, Anderson Creek near Bethel Church Rd, Horton Branch near Robert Bost Rd, and Caldwell Creek near Rebel Dr.

Additional showers are developing over Harrisburg. While the rainfall over Harrisburg has not been significant enough yet to cause excessive runoff, the slow-moving nature of this line of storms may result in excessive runoff within the next 60 minutes. Therefore, the Flood Advisory will extend upstream within the Rocky River watershed across the southern third of Cabarrus County.

- Some locations that may experience flooding include... Harrisburg, Mt Pleasant, and Midland. - http://www.weather.gov/safety/flood