Heavy rains associated with Isbell and a nearby non-tropical low resulted in heavy rains across The Carolinas on October 15 and 16. In and around the Columbia, South Carolina area, of rain fell, with a peak of in the city itself. Significant flooding took place along all rivers in the state; the Broad River crested at , its highest level since 1940, in Blair. The Pee Dee River rose to at Cheraw by October 18, roughly above flood-stage. The cotton crop sustained the greatest losses during the event, with damage estimated in excess of $1 million. Along the coast, tides rose to , above normal, in Charleston Harbor. What little coastal flooding took place mostly resulted from wave run-up rather than tidal flooding. Some beach erosion occurred in exposed areas.