Greenville, S.C. – Showers and thunderstorms will keep the Carolinas on alert Tuesday as cooler air meets heavy downpours capable of triggering flash flooding, especially in mountain and foothill communities.
According to the National Weather Service in Greenville-Spartanburg, storm chances will climb through the day, with the heaviest rain expected across western North Carolina and northeast Georgia. Areas including Franklin, Brevard, Hendersonville, and Clayton face the greatest risk, where storms could drop 1 to 2 inches of rain in less than an hour.
Poorly drained urban neighborhoods and low water crossings are most vulnerable, with emergency officials urging drivers to avoid flooded roadways. Even brief downpours could overwhelm storm drains in Asheville, while mountain routes such as U.S. 64 and U.S. 276 may see standing water and rapid runoff.
Temperatures will ease slightly from Monday’s heat, with highs in the mid-80s across Greenville, Spartanburg, and Charlotte, but humidity will remain high. Afternoon storms could also slow commutes around Rock Hill, Anderson, and Gastonia as rain spreads eastward.
The threat of flash flooding lingers into Tuesday night, with more scattered storms possible midweek. Additional advisories may be issued if rainfall intensifies.
