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Author: Jared Smith

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.

Rest of the work week: A few more clouds, maybe a few showers

/ September 3, 2024 at 7:01 PM

Tuesday ended up being a rather nice day across the area as the low-level cloud cover that was originally anticipated didn’t quite materialize. Unfortunately, that reprieve may not last as the stationary front offshore buckles back toward the coast a bit more starting Wednesday. This should help spread some cloud cover back into the area, though the best shower and storm chances will reside closer to the coast. Northeasterly flow will keep temperatures well in check, with lows in the upper 60s Wednesday followed by low 70s Thursday into Friday. We’ll see highs continue to peak in the mid-80s, which remains a few degrees below normal for this point in the year.

Rain chances will tick up heading into Friday as a little more moisture works back into the area. We’ll see rain chances peak Saturday into Sunday before another front moves by for Monday, which should bring another round of cooler and drier air into the region for next week.

Rest of the work week: Cooler, cloudier, occasionally stormy

/ September 2, 2024 at 9:39 PM

A front will get through the area overnight into Tuesday morning, bringing with it a cooldown that will last for the rest of the week as high pressure wedges southward into the area. Lingering showers should end Tuesday morning, and we should get much of the rest of the day in without any additional measurable rainfall. Clouds will hang around, though, and this will be commonplace for much of the week with the nearby front and ongoing high pressure wedge.

Tuesday’s temperatures will be fairly representative of what we have in store for the rest of the week. Expect lows around 70°, with perhaps some 60s further inland. We’ll warm to the mid-80s in the afternoon, tempered by the northeasterly winds and cloud cover. Dewpoints on Tuesday will run just in the mid-60s, making it the driest-feeling day of the rest of the week as they’ll trend back up to the upper 60s on Wednesday and back to around 70-71° on Thursday and Friday as the stalled front buckles back northward. Shower chances with some rumbles of thunder head up starting Wednesday afternoon and get a little higher Thursday and Friday thanks to the aforementioned front and the return of more quality surface moisture. We’ll keep this going into the weekend, too, before another front sweeps through the area with a reinforcing shot of cooler and drier air to kick off next week.

Labor Day: Storm chances tick up as a front approaches

/ September 1, 2024 at 5:54 PM

I hope everyone has gotten to enjoy the last few quiet weather days — it’s been warm, but aside from a brief shower in spots, mostly quiet. This begins to change on Labor Day as a cold front moves into the area from the north. We’ll see the risk for showers and thunderstorms increase ahead of the front, with rain chances peaking in the afternoon and evening. Severe storms are not expected, but some brief periods of heavy rain will be possible.

We’ll have one more day of seasonably warm temperatures before high pressure wedging southward drives some cooler air into the area for much of the upcoming week. Expect to start Labor Day in the mid-70s, warming to the upper 80s in the afternoon before showers and thunderstorms fire up. Heat indices should run around 100° given dewpoints in the mid-70s.

The rest of the week will feature below-normal highs in the low to mid-80s each day within a persistent northeast flow. Unsettled weather will continue, though, with the front stalled to our south and a coastal trough hanging around for the foreseeable future. It won’t rain all the time, but the risk will certainly be there. I’ll have more details tomorrow evening.

Labor Day weekend: Sending off summer with warm temperatures, then storms

/ August 30, 2024 at 8:13 PM

It’s a Meat Loaf-like Labor Day weekend this year: Two out of three ain’t bad. We’ll continue this stretch of warm but mostly quiet weather (aside from a stray shower on the seabreeze) for Saturday and Sunday. Expect to start each day in the mid-70s, warming to the low 90s in the afternoon. Heat indices will generally run in the upper 90s — certainly still hot, but it could (and has!) been much worse.

Attention then turns to a front that will move into the area on Monday. We’ll see the risk for showers and thunderstorms increase throughout the day as the front sags south into the region. Temperatures will peak around 90° one more time before the front ushers in cooler air and continued unsettled weather as we get into the working portion of next week. Severe weather doesn’t look to be a major concern, but we could see brief periods of heavy rain and lightning from any thunderstorm that fires. Remember: when thunder roars, go indoors!

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Friday & Labor Day Weekend: Seasonably warm, mostly sunny before a front on Monday

/ August 29, 2024 at 10:55 PM

The good news is that much of the upcoming Labor Day weekend is looking pretty good: expect highs generally to run in the low 90s each afternoon, with heat indices in the upper 90s expected after taking into account dewpoints in the low to mid-70s. A stray shower or storm can’t be completely ruled out, especially as you head inland, but otherwise we should stay mostly quiet across the area.

A pattern change is in the offing, though, that will help drive a front toward the area for Monday. We’ll start Labor Day in the mid-70s once again, warming to the low 90s in the afternoon. As the front pushes southward, the risk for showers and thunderstorms will increase, with a decent shot at some storms arriving by Monday evening. This will kick off a stretch of unsettled — but cooler — weather as the front stalls to our south and high pressure wedges southward across the area. A nearby coastal trough should keep rain chances in place for much of next week, though we have a few more summery days to enjoy before then!

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Thursday: Mostly sunny skies continue; turning more unsettled around Labor Day

/ August 28, 2024 at 7:47 PM

Our stretch of high-pressure-dominated weather continues on Thursday as warm temperatures and mostly sunny skies continue. We start the day in the mid-70s, warming to the mid-90s in the afternoon. Dewpoints in the low 70s will ultimately yield heat indices around 100-101°. A few patches of fog will be possible in the morning, but otherwise, another generally quiet weather day is expected.

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Rest of the work week: Warm, muggy, and mostly sunny

/ August 27, 2024 at 6:01 PM

Warm and muggy conditions continue for the rest of the work week as high pressure ridges aloft and at the surface. This should help keep showers to a dull roar, though I suppose with the airmass we can’t ever totally rule out a rogue popup shower (like we saw today).

We may start Wednesday with some fog once again, but that should mix out by 9-10am to yield a mostly sunny day with highs in the low to mid-90s. Dewpoints in the low to mid-70s will combine with those air temperatures to make it feel closer to 105° in the height of the afternoon, so be sure you’re taking frequent breaks and getting plenty of water if you’re outside during that time.

We’ll keep this going Thursday into Friday, with lows in the mid-70s each morning yielding to highs in the low 90s each afternoon with just a few clouds from time to time. The stacked high pressure will give any enterprising updraft trying to become a shower a very, very hard time, and rain-free conditions are expected as a result.

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Tuesday: High pressure assumes control

/ August 26, 2024 at 5:42 PM

High pressure will bring a pause in the rain and a further uptick in temperatures starting Tuesday. We start the day in the low to mid-70s (warmer near the coast), warming to the low 90s in the afternoon under partly cloudy to mostly sunny skies. With 70s dewpoints continuing their comeback, expect heat indices in the low 100s to return to the area as well — a fair bit warmer than we’ve been used to recently, but staying below the heat advisory thresholds we got to know very well during July.

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The week ahead: Storms pause, heat returns

/ August 25, 2024 at 10:31 PM

The final week of August will end on a warm and more humid note than the past 7-10 days have offered across the area. Storms will take a pause, though, as high pressure aloft puts a lid on widespread cloud cover, much less thunderstorm development, for much of the week.

The stationary front that’s kept shower chances in the neighborhood over the weekend still lingers nearby, and a shower or two will be possible (though unlikely) on Monday. Dewpoints will continue their steady climb, peaking in the mid-70s, which will make the upper 80s feel more like the mid-90s.

High pressure aloft will become more entrenched across the area starting Tuesday, setting us up for a rain-free stretch through Friday that will feature warmer-than-normal temperatures for late August. We should see highs peak in the low-to-mid-90s each afternoon, and with dewpoints peaking in the mid-70s, heat indices should head back into the 100s especially Wednesday-Friday. We’ll fall short of the Heat Advisory threshold of 108°, but it’ll still be plenty warm with just a few clouds to hide the sun from time to time. The high pressure pattern will keep winds generally light, too, so there won’t be much of a breeze, either.

As we head into Labor Day weekend, the high pressure ridge aloft gets shunted south and west as a trough digs in a bit to our north. This will kick up the chance for a few afternoon thunderstorms and take some of the bite out of the heat, but it’ll still be plenty warm as we bid farewell to summer as meteorological fall begins on Sunday.

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Weekend forecast: Turning warmer with coastal shower chances

/ August 23, 2024 at 6:00 PM

Cool high pressure will hang tough over much of the Carolinas heading into the weekend, though coastal areas could run a little warmer and more humid depending on the position of a stationary front/coastal trough nearby. The trough keeps cloud cover in the forecast for Saturday in particular, and that combined with northeasterly winds will keep temperatures down into the mid-80s in the afternoon after another mid-60s start. A stray shower or thunderstorm will be possible Saturday, particularly closest to the coast, with the nearby trough. A little more humidity creeps into the area for Sunday as winds just off the deck turn more onshore. It remains to be seen just how deep the moisture becomes with some fairly serious differences in model guidance showing up, but ultimately be ready for an isolated storm or two Sunday afternoon. We will see dewpoints return to the low 70s; as high temperatures head to the mid-to-upper 80s, that will yield heat indices in the low 90s. Nothing terribly heinous, though certainly not as comfortable as it has been.

While northeasterly winds continue around the high pressure wedge, the risk for coastal flooding around times of high tide has ended as the tidal departures will stay below flood stage (though they will creep into action stage from time to time). One less thing to worry about, at least. Enjoy the weekend!