Columbia, South Carolina, is facing another dangerous weather day this Wednesday, June 25, with a heat advisory issued for the second consecutive day and the potential for destructive thunderstorms later this afternoon and evening.
Severe weather expected again in the Columbia area
According to the National Weather Service, temperatures in the Midlands are forecast to soar past 100°F (38°C), just one day after reaching 97°F (36°C) in Columbia. A heat advisory remains in effect until 8 p.m. today as the heat index could climb to a sweltering 110°F (43°C). Extreme humidity, combined with triple-digit heat, is creating conditions that pose serious health risks.
Though no other watches or warnings have been issued so far, that could change as storms begin to develop and move closer to the area. The Columbia forecast includes the threat of strong to severe thunderstorms this afternoon, accompanied by dangerous lightning, large hail, and intense wind gusts.
Damaging wind gusts and hail a major concern
The primary threat today is from scattered to widespread wind gusts, which are forecast to reach 60 mph (97 km/h) in many areas, with isolated gusts possibly exceeding 80 mph (129 km/h) in the strongest storms. These powerful winds could lead to extensive damage, particularly to trees, power lines, mobile homes, outbuildings, and roofs.
Thunderstorms capable of these destructive winds are likely to begin as early as 2 p.m., with the greatest impact across the Midlands expected between 3 p.m. and 11 p.m.. For Columbia, the most intense weather is forecast between 5 p.m. and 9 p.m., according to the National Weather Service.
Heat continues to endanger public health
The brutal heat remains a major hazard on its own. With humidity levels high, heat-related illnesses such as heat cramps, heat exhaustion, and heatstroke are all likely today, especially with prolonged exposure or strenuous activity outdoors.
The National Weather Service notes that heat illnesses can escalate quickly under these conditions. Overnight temperatures may drop into the low 70s°F (21–23°C), but triple-digit daytime heat is expected to persist throughout much of the day, regardless of any rain-cooled air from incoming thunderstorms.
Thunderstorms may bring hail and localized flooding
In addition to the wind and heat, large hail is likely in the strongest thunderstorms, although it will be less widespread than the wind threat. There is also potential for minor hail damage to vehicles.
Rainfall totals could reach 1 inch (25 mm) in Columbia, with localized heavier amounts during the strongest storms. Despite this, tornadoes are not expected with today’s weather setup.
Storm aftermath: Tuesday’s lightning strike injures 20
The severe weather pattern already caused significant disruption on Tuesday, when a lightning bolt struck near Lake Murray in Lexington County, injuring 20 people, including 12 children. Fortunately, all injuries were non-life-threatening, according to local officials.
Midweek outlook
Temperatures will ease slightly later in the week, with highs in the mid 90s°F (34–36°C) and a continued chance for isolated thunderstorms across South Carolina. However, today’s extreme weather conditions present the most immediate concern for residents in and around Columbia.
Stay tuned for ongoing updates as this developing weather story continues to unfold.


