Weather
Carolinas Weather: Isaias Dumps Over 9 Inches of Rain in 24 Hours
Greenville, SC – Parts of the Carolinas received more than 9 inches of rain in just 24 hours as the remnants of Isaias moved through the region, according to newly released National Weather Service ra
By Sophie Caldwell · 2026-10-11T20:16:36.369Z
Greenville, SC – Parts of the Carolinas received more than 9 inches of rain in just 24 hours as the remnants of Isaias moved through the region, according to newly released National Weather Service rainfall data Sunday, Oct. 11.
According to the National Weather Service Greenville Spartanburg office, the rainfall analysis covers the 24 hour period ending at 8 a.m. Sunday, capturing the bulk of the precipitation associated with Isaias across western North Carolina, Upstate South Carolina and nearby areas.
Rainfall Totals Exceed 9 Inches
The newly released map shows widespread rainfall totals between 3 and 6 inches, with several areas recording considerably higher amounts.
One of the highest plotted values reaches 9.45 inches, while other reports show totals of 8.82, 8.29 and 8.14 inches.
The heaviest precipitation was concentrated across portions of western North Carolina and the surrounding foothills, although rainfall varied significantly over relatively short distances.
Some locations received less than an inch, highlighting the uneven distribution of precipitation across the region.
Heavy Rain Extends Across the Carolinas
The map includes observations from western North Carolina, Upstate South Carolina and portions of northeastern Georgia.
Numerous locations recorded rainfall exceeding 4 inches, with several reporting totals above 6 inches.
Such substantial rainfall over a short period can increase the potential for localized flooding, especially near streams, creeks and low lying roadways.
However, the rainfall graphic does not establish whether flooding or road closures occurred at specific locations.
Additional Storm Totals Expected Monday
The National Weather Service emphasized that Sunday's rainfall map represents a 24 hour analysis rather than the complete storm total.
An official graphic covering the entire Isaias rainfall event is expected Monday, Oct. 12.
That updated analysis may provide a more complete picture of precipitation totals across the affected region.
Residents should continue monitoring local weather information and avoid driving through any flooded roadways.