Intense rainstorms are becoming more frequent in most of the U.S. — though experts say where they occur and whether they cause catastrophic flooding is largely a matter of chance.

Flooding from Tropical Storm Chantal caused damage across several counties in central North Carolina, including some issues with wastewater treatment facilities. It has prompted officials in some ...

Tropical Depression Chantal flooded Eastgate Crossing in Chapel Hill, leaving stores gutted and debris strewn. Crews worked ...