Exceptional Drought Conditions Persist in South Carolina
• South Carolina is currently experiencing significant drought conditions, as indicated by the U.S. Drought Monitor. The state is facing exceptional drought (D4) in some areas, with a 9-month Standardized Precipitation Index (SPI) of -2.0 or less. Other regions are classified under extreme drought (D3), with SPI values ranging from -1.9 to -1.
• These classifications are based on changes in precipitation and moisture over the past three months, as well as historical data from 1979 to the present. The drought map integrates multiple indices and is produced collaboratively by NOAA, USDA, NASA, and the National Drought Mitigation Center. The data is used for disaster declarations and water supply planning.
Impact & Risks
The ongoing drought is affecting non-irrigated agriculture, topsoil moisture, and pasture conditions across South Carolina. Exceptional drought (D4) conditions, the most severe classification, can lead to significant agricultural losses and water shortages. Extreme drought (D3) also poses risks to crop yields and livestock. These conditions are drier than 70% to 80% of historical records, highlighting the severity of the current situation. Long-term droughts could exacerbate these impacts, affecting local economies and water resource management.
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