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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.

Beautiful weather continues for Tuesday

/ April 5, 2021 at 8:26 PM

There’s really not much to say about tomorrow other than it’s going to feel pretty good outside with high pressure at the surface and ridging continuing to build aloft, putting the kibosh on any cloud that even thinks about getting going. Highs in the 80s with low humidity and full sunshine will make you wish it wasn’t Tuesday. This great stretch of weather continues Wednesday with a few more clouds. Thursday looks dry, but clouds will thicken back up as the day goes on ahead of our next storm system, which brings shower and storm chances into the area for Friday. But for now, soak it in as you can! Before you know it, we’ll have six months of humidity.

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The week ahead: Warmer and starting dry, but storm chances return late week

/ April 4, 2021 at 9:33 PM

After quite a cold snap closed out last week, temperatures will be back at or a little above normal as we get into the first full week of April. There will be plenty of sunshine in the offing particularly Monday through Wednesday as high pressure maintains firm control over our weather. Lows will start out in the upper 40s on Monday but will warm into the mid-50s by Wednesday morning. Highs will generally run in the upper 70s to low 80s.

Changes begin to show up in the form of at least a few more clouds for Thursday as a storm system starts shoving the surface high offshore, allowing for some more moisture return. There’s an outside shot at a few showers Thursday evening, but the better rain chances will be ahead of the storm system’s cold front on Friday. We could see a few thunderstorms in the mix as well. The front will get through Saturday, but lingering moisture keeps rain chances in the forecast for most of the weekend. It doesn’t look like a washout, though, and as always, we’ll have time to fine-tune the details throughout the week. For now, enjoy the warm sun!

Chilly night ahead, but we trend warmer into Easter and beyond

/ April 2, 2021 at 8:31 PM

After very likely setting a new record low maximum temperature today with a high so far of just 53°, our cold snap continues into tonight and tomorrow. A Freeze Warning is in effect for the Tri-County tonight as temperatures are expected to dip below freezing for at least a little while particularly inland and in sheltered areas. The record low of 33° at the airport, set in 1962, certainly seems in jeopardy to fall. Even where temperatures don’t drop below freezing, there is some potential for frost. Wherever you are, protect plants and pets tonight!

Saturday afternoon should see high temperatures run about 9-10° warmer as the trough that brought us this cold snap moves well away from the area and the April sun angle is able to modify the airmass. We’ll keep high pressure firmly in place at the surface, and that should yield an exceptionally nice spring day with highs in the low 70s in the afternoon.

Beyond the weekend, temperatures will gradually warm to the low 80s by the middle of next week. We’ve got a pretty decent dry stretch ahead of us before our next storm risk arrives for next weekend. Enjoy, and stay warm!

Friday and the weekend: Brrr

/ April 1, 2021 at 8:23 PM

Get ready for what is probably Winter’s final hurrah starting tonight into this weekend. Overnight tonight, temperatures look to fall to the mid-30s in the Charleston Metro Area, with the potential for those temperatures to fall even a bit more inland. I’d protect plants and pets tonight to be on the safe side. Wind chills tomorrow morning will run as low as the mid-20s at times — bone-chilling for January, somewhat absurd for April. In addition to possibly setting a record low in the morning (the record is 36° set in 1942), Friday’s forecast high of 54° would break the record low maximum temperature of 56° set in 2019. All this and we will have full, unfettered sunshine throughout the day. Quite a potently cold airmass, for sure.

The chill continues into Saturday morning. Winds look to back off a little bit, but that may just allow for better radiational cooling conditions with the potential for a freeze inland from the coast and patchy frost elsewhere. Friday night into Saturday morning will be another time to protect your plants and pets from the chilly conditions. Saturday afternoon does look a little warmer with highs getting into the low 60s, but this is still well below normal for early April.

By Sunday, though, we begin to lift out of the cold snap with lows in the low 40s in the morning, followed by highs getting back into the 70s in the afternoon. Just a few clouds will be around, and it looks to be a rather pleasant day.

Bundle up and enjoy the weekend!

After a raucous evening, we turn much cooler

/ March 31, 2021 at 9:49 PM

It was a busy weather evening, with numerous reports of hail inland from the coast, a lot of lightning, and a lot of heavy rain. The storms will give way to a cold front swinging through overnight, and by Thursday morning, we will begin to see quite a cooldown. We’ll go from a high of 82° on Wednesday to highs struggling into the mid-60s for Thursday. (No fooling.) It’ll be breezy in the wake of the front, too. However, the sun will be out, and the early April sun angle will feel pretty good when balanced with the cooler air temperatures.

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Update on this afternoon and evening’s severe weather threat

/ at 12:48 PM

We’ll have a risk of some strong to severe thunderstorms later this afternoon into this evening as a sharp cold front swings through the area. We’ve had plenty of sunshine thus far, and that is certainly helping the atmosphere destabilize ahead of said front. Damaging wind gusts are the primary concern, but a tornado cannot be ruled out somewhere on the leading edge of the line as well. The greatest risk of severe weather generally lies along and west of 17-A as daytime heating and marine influences stabilize things closer to the coast, but severe storms will be possible pretty much anywhere in the Tri-County this evening; NWS is thinking between 6PM and midnight for our neck of the woods.

Stay close to reliable weather sources this afternoon and be ready to take action in case warnings are issued.

Cold front brings storms for Wednesday and chilly weather thereafter

/ March 30, 2021 at 10:53 PM

A cold front will approach the area from the west throughout the day Wednesday, with shower and thunderstorm chances increasing later in the day as the front gets closer. A couple showers or storms can’t be ruled out in the afternoon well ahead of it, but the best rain chances will start early in the evening through the overnight. One or two storms could turn strong with gusty winds and hail, especially for those of you who are further inland. However, widespread severe weather is not expected.

We’ll be at the apex of this week’s temperature rollercoaster with highs topping out around 80° in the afternoon. Afterward, it’s a much different story…

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A few showers possible for Tuesday

/ March 29, 2021 at 9:37 PM

We’ll put scattered showers into the weather mix for tomorrow as a trough of low pressure sets up offshore, perhaps allowing a little rain to head up into our neck of the woods primarily in the morning to midday timeframe (with slight chances in the afternoon). Temperatures will warm into the lower 70s in the afternoon.

Tuesday night, a warm front will lift north of the area, which will prevent temperatures from falling much below the low 60s as we get into Wednesday morning. Highs will top out in the low 80s on Wednesday afternoon, with the risk of a few thunderstorms coming along for the ride as we are well into the warm sector of our next storm system. A couple strong to severe storms are not out of the question, either, so we’ll want to watch that potential. After the front gets through, the bottom falls out of the mercury, but at least the sun stays out into the weekend!

The week ahead: All aboard the temperature rollercoaster

/ March 28, 2021 at 9:50 PM

Spring, being a transitional season, will often give you its share of weather whiplash. This is going to be one of those weeks where your jacket and shorts should stay within equal reach.

We start the week with high pressure asserting control over our weather, albeit briefly. It’ll be much cooler — we’ll start Monday in the low 50s. Late-March sunshine will be enough to push temperatures into the upper 60s, but that is still a little cooler than normal for this time of year. Temperatures moderate a bit on Tuesday as high pressure slips offshore, but we’ll also see shower chances return to the picture as well.

Our best thunderstorm chances this week come Wednesday into early Thursday as a warm front lifts north across the area followed by a strong cold front. We could warm to around 80° on Wednesday post-warm frontal passage before the mercury comes crashing back down to earth for Thursday, when temperatures will struggle to 60°. Frost and freeze issues could very well come into play Friday morning as temperatures dip to the mid-30s in the immediate Charleston Metro Area with colder temperatures, perhaps flirting with freezing, further inland. The high on Friday should only top out in the mid-50s despite ample sunshine, owing to the abnormally chilly airmass working its way into the area to help get April started out on a chilly note. The early April sun angle will help modify this airmass, though, with temperatures warming back to around normal by Sunday. It’ll be a nice weekend to get outside with plenty of sunshine and comfortable humidity levels expected.

Sunday: Approaching another record high, then storms for this evening

/ at 8:29 AM

After two days of record warmth, we look once again to approach record highs ahead of a cold front. The NWS forecast high of 87° is one degree off the record of 88° set in 2017 — it’ll be close.

We are already seeing a few downpours pop off in the I-95 corridor near St. George and Holly Hill this morning. However, the better rain chances arrive this afternoon and evening as a line of thunderstorms ahead of a cold front approaches the area. I’d expect thunderstorms to be approaching the I-95 corridor around 4-6 PM, with the line — perhaps in a more broken, weakened state — moving through the Charleston metro area by early to mid-evening. Our risk for severe weather today is low, but not necessarily zero, as a couple storms could still produce damaging wind gusts as they move by (especially if they arrive early enough to interact with the seabreeze circulation). Water temperatures remain generally in the mid-60s, which should lend a stabilizing influence as the storms approach the coast.

As always, keep an eye on forecast updates throughout the day as arrival time estimates are fine-tuned and we see how trends evolve with the strength of these storms.