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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.

Thursday: A windy and unsettled day

/ April 10, 2024 at 9:07 PM

Thursday will be a busy weather day as showers and thunderstorms move across the area in association with a cold front. It’ll be a breezy day — expect gusts approaching, if not exceeding, 40 MPH at times especially on bridges and overpasses. We’ll have a Wind Advisory in effect starting at 8am as a result.

Rain will likely greet us in the morning and should be around for much of the day. Embedded thunderstorms will be possible as well, and if enough instability can be realized, a few damaging wind gusts will be possible. The better risk for severe weather will stay to our south, though, where more quality moisture will be available. Still, even without severe storms, wet soils may allow for some tree damage at lower wind speeds. Sporadic power outages could be an issue, so be ready just in case. Before it’s over, we can generally expect an inch to an inch and a half of rain in most spots, with locally heavier amounts possible.

Temperatures will be quite mild and muggy; expect to start the day in the upper 60s with highs peaking in the mid-to-upper 70s, tempered by rainfall.

Showers and thunderstorms should exit by evening, and the weather will continue to improve from there, with a nice stretch of sunny and increasingly warm weather for Friday and the weekend.

Rest of the work week: Turning unsettled late Wednesday night into Thursday, then improving

/ April 9, 2024 at 9:08 PM

We have a great weekend of weather ahead, but we’re going to need to get through an unsettled Thursday to get there first.

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Tuesday’s forecast: A few more clouds, a little warmer

/ April 8, 2024 at 11:07 PM

Tuesday will turn a little warmer as winds continue to blow southerly on the backside of high pressure. We start the day in the mid-50s, warming to around 80° in the afternoon as clouds mix in more prominently into the sky character. No rain, though we will likely see some evening coastal flooding once again with high tide around 9:34 PM thanks to the recent new moon and continued onshore flow.

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The week ahead: A few storms Thursday, but otherwise quiet — and warmer

/ at 12:09 AM

Viewing conditions look good for Monday’s partial solar eclipse across the Charleston area. It’ll be a warmer than the past few days, too. Expect to start the day in the upper 40s before warming to the mid-70s in the afternoon. The eclipse starts just before 2 PM, peaks around 3:10 PM with about 70% of the sun obscured by the new moon, and ends just before 4:30 PM. You’ll need eclipse glasses to experience this one — don’t look directly into the sun! If you don’t have your eclipse glasses from 2017, you can use a pasta strainer to project the shadow of the eclipse down onto another surface; the shadows will have a curved look, especially as we head toward peak eclipse.

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Weekend forecast: No concerns with high pressure in control

/ April 5, 2024 at 11:03 PM

A great weekend of weather awaits for all sorts of outdoorsy things, including the Bridge Run and Flowertown. Expect plenty of sunshine with just a few clouds at times as high pressure remains in control across the area.

A weak front dropping southward across SC as of this writing will reinforce some cooler temperatures for Saturday. We’ll start the day in the mid-40s, warming to just the upper 60s to around 70° in the afternoon, which is a few clicks below normal. However, this should be optimal for Bridge Runners as the drier air will allow for efficient cooling via perspiration. Winds out of the north could bring a bit of a crosswind at times, but otherwise, no concerns.

Temperatures moderate some for Sunday, as we’re solidly back in the low 70s in the afternoon after another low-to-mid-40s start. Mostly sunny skies will remain the rule, and winds will be generally light. It’ll be another outstanding day to get outside before Spring Break ends.

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Rest of the work week: Stormy Wednesday, then cooling off

/ April 2, 2024 at 9:46 PM

This stretch of warmer-than-normal temperatures comes to an end on Wednesday as a cold front moves through the area. Showers and thunderstorms will be ongoing ahead of the front, and there will be a risk for a few of those storms to be on the strong to severe side. Damaging wind gusts will be the main concern, but a tornado or two can’t be totally ruled out as the line pushes eastward. If storms take a little longer to get here, that could increase the severe weather threat as well. I’d be prepared for a somewhat stormy morning commute. The good news is that the front should clear the area by evening, sweeping showers and storms offshore and allowing cooler and drier air to work into the area. Windy conditions will be expected so be careful on the bridges.

From there, temperatures run several degrees below normal for the next few days, including Bridge Run weekend. Thursday will be a much sunnier day than Wednesday, but will run almost 10° cooler in the wake of the front. Expect highs to top out in the upper 60s to around 70° in the afternoon. Friday will start even cooler, with lows in the mid-40s yielding to highs in the upper 60s once again under mostly sunny skies.

We’ll start the Bridge Run in the mid-40s and warm to the mid-60s in the afternoon under mostly sunny skies. Dewpoints will run in the low 30s in the morning, dropping to the upper 20s in the afternoon as daytime heating mixes down even drier air. All in all, sweat should be a rather efficient cooling mechanism, and there are otherwise no weather concerns.

The week ahead: Very warm start to April followed by a below-normal cooldown

/ March 31, 2024 at 10:59 PM

We’ll get April off to an almost early June-like start before a front comes through Wednesday and knocks temperatures down to more comfortable levels heading into Bridge Run weekend. (In fact, many of y’all might find it a little chilly!)

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Friday & Easter weekend: Picture-perfect

/ March 28, 2024 at 10:35 PM

We’ve got no weather concerns for Good Friday and the Easter weekend. High pressure will be in control, and skies will be predominantly sunny for the next few days as a result. Temperatures will be on a warming trend throughout the period. We start Friday in the mid-40s and warm to the low 70s in the afternoon with full sunshine and low humidity. As high pressure at the surface shifts offshore a bit, temperatures will moderate. Expect Saturday to start around 50° and warm to the mid-to-upper 70s, while Easter Sunday will feature lows in the mid-50s and highs in the low 80s in the afternoon. All in all, a great weekend to get outside a bit (just mind the pollen!)

Thursday: Improving weather heading into Easter weekend

/ March 27, 2024 at 9:56 PM

Showers will be coming to an end Thursday morning, yielding a quiet and increasingly warm period for Good Friday and Easter weekend. We should see the rain exit the area by midday, and from there, cloud cover will diminish. It’ll be a cool day in the wake of a cold front; expect highs to only top out in the mid-60s in the afternoon. The breeze will kick up at times as cooler air moves into the area behind the front as well, but it shouldn’t be too terribly gusty, either.

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Rest of the work week: Stormy Hump Day, then improving heading into Easter weekend

/ March 26, 2024 at 9:23 PM

Rain chances peak on Wednesday as a front stalls nearby before moving through overnight. Showers and a few thunderstorms will generally be the rule for much of the day, though it may not rain all day at any one spot. Cloud cover will be prevalent, which will keep lows in the low 60s in the morning. Warm air pumping in ahead of the front will allow temperatures to top out in the mid-70s despite the thick cloud cover and rain in the area. The best chance of any heavier rain looks to be later Wednesday evening into the overnight as the front presses in. Right now, a major flooding threat doesn’t seem to be in the cards, but some ponding of water is certainly possible in spots.

Showers diminish as we head through Thursday, and we should be mostly clear by the end of the day. Post-cold front, temperatures will peak just in the upper 60s, a few degrees below normal for late March. This yields an absolutely beautiful Good Friday across the Lowcountry — we start in the mid-40s and warm to the low 70s in the afternoon under full sunshine. A warming trend follows into Easter weekend, and we should be in the low 80s for a spell starting Easter Sunday.