A developing storm system is expected to bring widespread rainfall across the state, with the most significant impacts likely during the Thursday morning commute.
A cold front interacting with a slug of moisture will be responsible for the showers and thunderstorms, which could begin popping up as early as Wednesday evening.
While the initial activity will be widely scattered, coverage is forecast to grow and become more widespread by daybreak on Thursday.
Forecast models indicate that most neighborhoods will receive around half an inch of rain, with localized heavier amounts approaching an inch or possibly even more, particularly across the Upstate and north of Interstate 20.
Thunderstorms are also possible but because of a lack of instability a severe weather outbreak is not anticipated. However, within the stronger storms that develop, gusty winds could still pose hazards.
Additionally, despite the potential for heavy downpours, the threat for flash flooding is low due to the ongoing drought conditions.
According to the latest U.S. Drought Monitor, approximately 80% of the state is currently experiencing “Extreme” drought conditions, with 5% seeing an “Exceptional” drought, the most severe category.
While the round of rainfall will provide some relief from the dry conditions, it is not expected to completely eliminate the drought.
At least 5 to 11 inches of rainfall over an extended period is needed to eliminate current deficits.
Recent rainfall has been sufficient enough for the state’s forestry commission to lift the statewide burn ban, and firefighters in nearby Georgia reported gaining the upper hand on wildfires that recently sent smoke over the Palmetto State.
Weekend rainfall totals are expected to remain lower than Thursday’s event, but any additional precipitation will still be beneficial.