Tuesday: Cloudy Start, Afternoon Showers
Morning: The day begins with widespread low clouds and fog across the forecast area. Cloud debris from an upstream Mesoscale Convective System (MCS) is tracking towards the region. This system is weakening and the showers likely will not reach the Highway 16 Corridor.
Afternoon: Expect temperatures to be slightly lower than usual due to persistent cloud cover. Showers and thunderstorms may develop as the second of several MCSs approaches. Severe weather with damaging wind gusts may become an issue this afternoon. The SPC has issued a level 2, slight risk, for damaging wind gusts this afternoon for the south and western foothills. The Highway 321 Corridor is under a level 1, marginal risk. I think this looks reasonable but will monitor for any adjustments that may be required midday, once we see how much the atmosphere recovers in the wake of this mornings decaying MCS.
Evening: The second MCS should be pushing toward the Highway 16 Corridor this evening and then racing southeast. In it’s wake, the atmosphere should stabilize and shower and storm activity should wane from West to East.
Wednesday: Hot, Humid, and Stormy
Morning: The East Coast upper trough and Mississippi Valley ridge will dominate. A warm front extending from Iowa to eastern Kentucky will bring disturbances that might trigger an new MCS in the Midwest or Ohio Valley.
Afternoon: The GFS model predicts widespread storms and precipitation, whereas the NAM model suggests isolated impacts in the western and southern zones. Nonetheless, expect a hot and humid day, with temperatures rising as the soupy airmass intensifies.
Evening: Storms could continue into the evening, particularly if that MCS develops and tracks towards the region. Temperatures will remain high, contributing to an uncomfortable night.
Thursday: Continued Heat with a Chance of Storms
Morning: The ridge axis shifts eastward, reducing the likelihood of any MCS but not eliminating it. Temperatures will remain high, with a possibility of excessive heat, especially in the I-85 corridor.
Afternoon: Diurnal convection may occur, with scattered showers and thunderstorms expected. The heat index could reach 105°F in areas along the South Carolina Boarder, so stay hydrated and avoid strenuous activities during peak heat hours.
Friday: Slight Relief from the Heat
Morning: Height falls aloft will lead to better chances of thunderstorm activity. A shortwave passage will enhance storm development, providing some relief from the heat.
Afternoon: Showers and thunderstorms are likely, with temperatures still well above normal. Expect high humidity levels, with heat indices over 100°F in many areas.
Weekend: A Weak Cold Front Brings Change
Saturday: A weak cold front will move through, bringing the highest chances of rain and thunderstorms for the week. Despite the front, temperatures will remain high until it passes, with heat indices still reaching uncomfortable levels.
Sunday: Temperatures will drop slightly, bringing a bit of relief from the intense heat. However, the front will stall over the Coastal Plain, keeping rain chances elevated, particularly in the eastern areas.
Tropical Watch
The National Hurricane Center indicates a 60% chance of tropical development in the eastern Caribbean and Florida through the week. Current models suggest low likelihood of direct impacts across the foothills, but we will monitor closely for any changes.
Summary
- Tuesday: Cloudy with afternoon showers, high temperatures slightly lower than usual.
- Wednesday: Hot and humid with potential storms, heat index around 105°F.
- Thursday: Continued heat with scattered storms, heat index around 105°F.
- Friday: Enhanced storm chances, high temperatures, and humidity.
- Saturday: Best chance for rain and storms, temperatures still high.
- Sunday: Slightly cooler, continued rain chances.
Stay prepared for changing weather conditions this week, especially with the potential for high heat and scattered thunderstorms. Remember to check for updates and stay safe.