Charleston, August 25, 2025
News Summary
Heavy rainfall caused severe flash flooding in Charleston over the weekend, with neighborhoods experiencing 6 to 12 inches of rain. The torrential downpour overwhelmed drainage systems, leading to road closures and disruptions. Charleston International Airport reported significant precipitation, which, combined with high tides, exacerbated the flooding situation. Although flash flood warnings expired, concerns about moderate flooding continue as the community shifts focus towards recovery with drier weather anticipated in the coming week.
Charleston
Heavy rainfall brought severe flash flooding to communities in the Lowcountry, including Charleston, over the weekend of August 22 and 23, resulting in widespread road closures and significant disruptions. The National Weather Service (NWS) reported that between 6 to 9 inches of rain fell in various parts of the area from 8 a.m. on Friday until 2 a.m. on Saturday.
An estimated total of 8 to 12 inches of rain inundated many areas in Charleston during this storm, surpassing previous rainfall records for the month. Charleston International Airport recorded 4.16 inches of precipitation on Friday alone, while gauges on Charleston’s peninsula measured 4.10 inches on Friday and 3.95 inches on Saturday. These figures contributed to a troubling scenario, particularly as the rainfall coincided with high tides, complicating drainage efforts.
The excessive rainfall overwhelmed the local drainage systems, with Steven Taylor, a meteorologist from the Charleston NWS, explaining that “the water literally has nowhere to drain to.” The ongoing moderate flood-level tides further exacerbated the situation, leading to clogged drainage systems and heightened risk for flooding throughout the area.
As a result of the severe weather conditions, numerous roads faced closures in Charleston late Friday and into Saturday morning, creating challenges for residents and emergency services alike. Although flash flood warnings were issued, they expired at 12:15 p.m. on Saturday. However, moderate flooding remained a concern as multiple flood-related warnings continued to be in effect as the situation developed.
Adding to the weather challenges, the total precipitation recorded in the Lowcountry during August ranged between 15 to 25 inches, indicating an already saturated ground prior to the storm. Fortunately, the National Weather Service predicts drier conditions ahead in the upcoming week, with temperatures expected to remain in the mid-80s.
Overview of the Event
- Date: August 22-23, 2023
- Rainfall Amount: 6 to 12 inches in affected areas
- Charleston International Airport Rainfall: 4.16 inches on August 22
- Flood Warnings: Flash flood warning expired on August 23 at 12:15 p.m.; moderate flooding concerns persisted
Background Context
Flooding in Charleston is not uncommon, as the area frequently experiences heavy rainfall and marshy land conditions. With the additional complication of high tides, similar weather phenomena often lead to challenges in draining excess water. The rainfall record for August thus far has indicated a clear trend of heightened precipitation, raising concerns amongst residents and local officials regarding infrastructure and preparedness for extreme weather events.
The everyone is monitoring the drainage systems closely, ensuring they are able to handle such exceptional weather conditions moving forward. As weather forecasts suggest a respite from the rain and a warmer outlook, the focus for the Lowcountry will likely shift toward recovery efforts.
FAQ
What caused the flooding in Charleston?
The flooding was caused by a stalled cold front that brought heavy rains of 6 to 12 inches across the area from August 22-23, 2023.
How much rainfall was recorded at Charleston International Airport?
Charleston International Airport recorded 4.16 inches of rain on Friday, August 22.
What time did flash flood warnings expire?
The flash flood warnings expired at 12:15 p.m. on Saturday, August 23, though moderate flooding was still expected.
Will the weather improve in Charleston?
Yes, drier weather is predicted for the upcoming week, with temperatures in the mid-80s.
How did high tides affect the flooding situation?
High tides complicated drainage efforts, resulting in clogged drainage systems and increased flooding risks.
Key Features Chart
| Feature | Details |
|---|---|
| Event Date | August 22-23, 2023 |
| Rainfall Amount | 6 to 12 inches |
| Charleston International Airport Record | 4.16 inches on August 22 |
| Flood Warning Expiry | 12:15 p.m. on August 23 |
| Expected Weather | Drier conditions and mid-80s temperatures for the following week |
Deeper Dive: News & Info About This Topic
HERE Resources
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Charleston Faces Record-Breaking Flooding Challenges
Charleston’s Initiative for 3,500 Affordable Housing Units
Flooding Causes Road Closures in Charleston Area
Charleston’s Mayor Announces Plan for 3,500 New Affordable Housing Units
Charleston Prepares for Major Rainfall Amid Tropical Storm Debby
Charleston County Council Approves Major Road Safety Enhancements
Charleston City Council Approves $73 Million Bond for Infrastructure
Myrtle Beach Woman Arrested for Arson and Burglary
Final Federal Reimbursement Received for Charleston Harbor Deepening Project
Additional Resources
- Live 5 News
- Wikipedia: Flash Flood
- Count On 2 News
- Google Search: Charleston flooding
- ABC News 4
- Encyclopedia Britannica: Flood
- Count On 2 News
- Google News: Charleston rainfall
- Post and Courier
Author: STAFF HERE CHARLESTON
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