Jared Smith founded @chswx on Twitter in 2008 as an experiment in disseminating weather data through social media. In the ensuing decade-and-a-half, @chswx has provided live coverage of tropical cyclones, tornadoes, severe weather, and even a couple bouts of winter weather to the good people of Charleston, SC.
The abbreviated work week will feature gradually warming temperatures and chances for showers and thunderstorms each afternoon. We’ll also need to monitor the evening high tides for the potential for minor to moderate coastal flooding with the upcoming full moon.
Labor Day weekend will get off to a hot start with Heat Advisory-level heat indices expected Saturday. From there, we’ll turn more unsettled as we get into Sunday as a front moves through the area.
Summer won’t loosen its grip just yet, especially as we head into Friday and Saturday as a front approaches the area, sending air temperatures back to the mid-90s and heat indices close to heat advisory territory.
Thursday looks to generally be a repeat of Wednesday (weather-wise, anyway). We’ll start the day in the mid-70s once again, warming to the low 90s in the afternoon. Mid-70s dewpoints will help drive the heat index into the upper 90s to around 100° — not quite August, but getting long in the tooth. The day should be primarily quiet with partly cloudy skies expected, though like we saw roll through Moncks Corner on Wednesday, a stray shower can’t be totally ruled out.
The first day of September marks the beginning of climatological fall, but it certainly won’t feel that way with a stretch of 90s coming up. Tuesday starts this streak, with highs expected in the low 90s after a low-to-mid-70s start. Ridging aloft will continue to build over the area, and that should suppress much in the way of shower and thunderstorm development in the afternoon, though a stray popup isn’t out of the question.
A very warm climatological summer — perhaps a top-three warmest on record — comes to an end on Monday as we roll into September. It won’t feel like fall, though, as temperatures head back to the mid-90s as clouds and showers give way to sunnier skies.
Unsettled weather continues this weekend with plenty of moisture remaining available across the area and a front to the west, though we should start to see a downtick in rain coverage starting Sunday as high pressure begins to rebuild aloft and that front falls apart.
A front at the surface and a trough of low pressure aloft will keep things on the unsettled side heading into Friday and the weekend, with the potential for heavy rain especially Friday and Saturday.
Thursday’s weather setup will be similar to what we saw on Wednesday with scattered to numerous thunderstorms affecting some spots while the sun peeks out elsewhere. Temperatures will start in the low to mid-70s once again, warming to around 90° in the afternoon — just a smidge above normal for late August. The severe weather risk is low, but once again, a storm or two could produce gusty winds. There is also the risk for flooding given slow storm motions and potential training of rain across the same spots, so stay alert as you get out and about tomorrow.