Temperatures will continue to be generally seasonable if not slightly cooler than normal for Friday and the weekend as high pressure continues to wedge southward into the area, though we will see an uptick in moisture and, eventually, rain chances heading into Sunday.
With Imelda departing to our east, high pressure will wedge down across the area, ushering in some cooler and drier air that’ll be particularly noticeable on Thursday. Shower chances return for Friday heading into the weekend, though.
More sunshine will show itself starting Friday and lasting into the weekend courtesy of continued high pressure and northeasterly winds keeping a feed of cooler and drier air coming in. All in all, we can expect lows in the mid-60s each morning, with highs peaking in the low to mid-80s in the afternoon. Fun fact: This looks like the first weekend since July 26-27 without at least a trace of rain at either of the climate sites, so suffice it to say, we are very, very due for a quiet weekend of weather.
Another quiet weather day is ahead as high pressure wedges across the area from the northeast. Expect a mix of sun and clouds with comfortable temperatures. We start the day in the mid-60s, warming to about 80° in the afternoon. It’ll be a bit breezy, with winds gusting around 15-20 MPH especially near the coast. These northeasterly winds will continue to drive tidal departures in Charleston Harbor above flood stage, and we should see minor to moderate flooding with the 9:35 AM high tide. Some flooding may have impacts on the tail end of the commute, so be prepared for delays if downtown is your destination.
A front which helped stir up another round of heavy rain and flooding in downtown Charleston on Sunday will clear the area overnight into early Monday, yielding a week of comfortable temperatures with occasional slight shower and storm chances.
Warmer and a little more humid air will return to the area Friday as winds go more southerly. With high pressure remaining in control for a few more days, though, we’ll stay largely quiet weather-wise this weekend before a front starts to affect the area later Sunday.
The rest of the work week will remain generally quiet (weather-wise, anyway), as high pressure remains in control at the surface. Temperatures will be on a warming trend as we get over the hump and into the second half of the work week as the mid-level trough that’s kept us on the cool side flattens out and retreats a bit north. We’ll also start to see high pressure build back in from the Atlantic for a few days, which turns the flow at the surface more southerly and starts to bring that more warm and humid air back to the area. We’re in the mid-80s Wednesday, upper 80s Thursday, and likely back to around 90° on Friday, with lows steadily climbing with the dewpoints back to around 70° by Friday morning. However, we look to stay rain-free through about Saturday before another front approaches for late weekend/early next week.
After record-breaking rainfall on Friday, more heavy rain appears likely for Saturday and to a lesser extent on Sunday as waves of low pressure along a stalled front continue to traverse the area, which has been well-moistened by an influx of tropical air.
The main story for the next couple days will be Hurricane Erin’s impacts on the Lowcountry. While not a direct hit — the storm will pass hundreds of miles offshore — the strong, dangerous rip currents and high surf will cause beach erosion and coastal flooding issues over the next few days.
High pressure will be the main weather feature for the next few days, with comfortable warmth and plenty of sunshine expected through Thursday before the next isolated storm chance arrives Friday.