July 22, 2025

Flood Advisory Issued for Charleston County

News Summary

The National Weather Service has issued a flood advisory for Charleston County due to heavy rainfall leading to minor flooding. Residents in low-lying areas are urged to seek higher ground and heed safety warnings as further rain is expected. Precautions for drivers and those in flood-prone areas are emphasized to ensure public safety amidst these conditions.

Charleston, SC – The National Weather Service (NWS) has issued a flood advisory for Charleston County as a result of heavy rainfall affecting the region. The advisory is in effect until 6 p.m. today, urging residents to remain vigilant as excessive rainfall has already led to minor flooding in certain areas.

The NWS has highlighted that flooding conditions have been caused by the continual downpour, particularly impacting low-lying and poorly drained areas of the county. As a precaution, residents are advised to adhere to the safety guideline “Turn around, don’t drown” when encountering flooded roads. Historically, most flood-related fatalities occur in vehicles, underscoring the importance of this advice.

Current forecasts indicate that Downtown Charleston is expected to experience nuisance flooding, particularly in vulnerable zones such as Market Street, Crosstown, East Bay Street, and Morrison Drive. To mitigate risks, drivers are urged to reduce their speed, increase following distances, and refrain from driving through water of unknown depth.

Residents living in flood-prone areas are recommended to seek higher ground and evacuate if instructed by local authorities. It is critical that if evacuation is necessary, residents take immediate action to secure their homes by locking doors and windows. If time permits, disconnecting utilities and appliances is also advised to prevent damage.

In the event of encountering submerged electrical outlets or evidence of sparks and buzzing sounds, immediate evacuation is crucial. Individuals should avoid walking through or entering floodwaters, as even a mere six inches of moving water can easily displace a person. Should anyone find themselves trapped by fast-moving water, seeking refuge on the highest possible point and contacting emergency services by calling 911 is recommended.

Driving during these conditions poses significant risks. The NWS warns that driving through roads covered with water, regardless of how deep it may appear, can be dangerous. As little as 12 inches of fast-flowing water is capable of carrying away most vehicles, and hydroplaning, which occurs when tires lose contact with the road due to water buildup, further compounds the danger on wet roads.

The phenomenon of hydroplaning results from an increase in water pressure lifting a vehicle and separating it from the road surface. Contributing factors include water depth, tire condition, and the speed of the vehicle. Drivers should remain cognizant of these risks and adjust their driving behavior accordingly.

The flood advisory was initially communicated on July 21, 2025, at 3:02 PM, and has since prompted local emergency management officials to work collaboratively to ensure community safety. Continued monitoring of weather patterns is advised, as further updates may be issued based on evolving conditions.

As Charleston County navigates this adverse weather situation, community members are urged to stay informed, prioritize safety, and heed the guidance from local authorities and the National Weather Service.

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Additional Resources

Author: STAFF HERE CHARLESTON

The CHARLESTON STAFF WRITER represents the experienced team at HEREcharleston.com, your go-to source for actionable local news and information in Charleston, Charleston County, and beyond. Specializing in "news you can use," we cover essential topics like product reviews for personal and business needs, local business directories, politics, real estate trends, neighborhood insights, and state news affecting the area—with deep expertise drawn from years of dedicated reporting and strong community input, including local press releases and business updates. We deliver top reporting on high-value events such as the Spoleto Festival USA, Charleston Wine + Food Festival, and the MOJA Festival. Our coverage extends to key organizations like the Charleston Metro Chamber of Commerce and the Charleston Museum, plus leading businesses in tourism and maritime industries that power the local economy such as South Carolina Ports Authority and the Charleston Visitor Center. As part of the broader HERE network, including HEREaiken.com, HEREbeaufort.com, HEREchapin.com, HEREcharleston.com, HEREclinton.com, HEREcolumbia.com, HEREgeorgetown.com, HEREgreenwood.com, HEREgreenville.com, HEREhiltonhead.com, HEREirmo.com, HEREmyrtlebeach.com, HEREnewberry.com, HERErockhill.com, HEREspartanburg.com, HEREaustin.com, HEREcollegestation.com, HEREdallas.com, HEREhouston.com, and HEREsanantonio.com, we provide comprehensive, credible insights into South Carolina's dynamic landscape.