The National Weather Service has issued an alert about a stalled cold front near our region that is expected to bring increasingly unsettled weather this afternoon through Monday.
Multiple rounds of moderate to heavy rainfall are forecast, significantly increasing the risk of flash flooding. A Flood Watch may be issued for portions of our area. Additionally, NWS Charleston is implementing its new flash flood warning criteria starting today.
Timing & Hazards:
Heavy Rain/Flash Flooding:
- The greatest risk is from Friday afternoon through Monday
- Expected rainfall totals: Inland: 2–4”; Coastal areas: 4–6” with localized amounts >6”
- Urban and low-lying areas may experience flooding and impassable roads, particularly near high tide
Severe Thunderstorms:
- Potential for isolated strong wind gusts up to 60 mph this afternoon/evening
Heat:
- Heat indices of 108–112°F are expected this afternoon
- Heat Advisory in effect for the entire area
Forecast Confidence:
- Moderate confidence for flash flood potential
- Low confidence for precise location and timing of rainfall totals
Reminders & Resources:
- Be prepared for rapidly changing conditions over the weekend
- Monitor the NWS Charleston Briefing Page and local alerts for the latest updates
- Additional resources: Excessive Rainfall Outlooks, Tide Forecasts for Charleston Harbor
If you come across flooded roads, remember the safety rule: Turn around, don’t drown.
–Tidelines Editors