Author: Jared Smith

Jared Smith founded @chswx on Twitter in 2008 as an experiment in disseminating weather data through social media. Somehow, it caught on, and he kept doing it.

Friday & the weekend: A nice Saturday sandwiched in by rain chances

/ March 9, 2023 at 6:28 PM

Clouds will be on the increase tonight as a storm system approaches the area from the west. We should remain rain-free through midnight before the atmosphere moistens sufficiently for showers to begin reaching the ground by tomorrow. Rain appears to be most likely from roughly mid-morning into early afternoon before cooler and drier air works into the area. Highs ahead of the front should peak in the low 70s despite the rain. A crack or two of thunder can’t be totally discounted, either.

Saturday is the pick day of the weekend for getting outside: it’ll run a little cooler and skies will be mostly sunny throughout the day. Expect highs to peak in the mid-60s after a start in the mid-40s. We should get Sunday morning in rain-free, especially near the coast, before precipitation chances head back up heading into the afternoon and evening hours. Highs should peak in the low 70s unless showers fire up sooner. The bulk of the rain looks to fall late Sunday into early Monday morning before a reasonably strong cold front punches through the area to send temperatures below normal for a few days next week. Stay tuned for timing changes on the rain as well as potential frost concerns for the middle of next week.

Thursday: More seasonable weather ahead of a stormy Friday

/ March 8, 2023 at 8:09 PM

More seasonable weather for early March continues on Thursday with a few more clouds working their way into the area ahead of a storm system that’ll bring rain our way on Friday. We’ll start the day in the low-to-mid-40s before warming to the upper 60s in the afternoon. Rain chances should hold off until after midnight.

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Rest of the work week: A much different feel to the air

/ March 7, 2023 at 9:59 PM

Today’s high was 87°, breaking the record of 86° set in 1961 while also being the warmest day of the year so far in 2023. Downtown got in on the record warmth action, too: the high of 84° broke the record of 83° set in 1945 and tied in 1961.

This changes drastically starting Wednesday. Lows in the 60s turn into lows in the mid-40s; highs in the 80s drop off 20°+ to the mid-60s in the wake of a front that is ushering in some much more seasonable — if not slightly below normal — temperatures for this point in the year. Winds may be gusty overnight as the cooler air moves in, and we’ll stay a little breezy through a good bit of Wednesday. The ongoing cool advection will counteract the otherwise mostly sunny skies to yield those mid-60s highs.

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Tuesday: One more nearly record warm day, then we cool off

/ March 6, 2023 at 10:17 PM

We’ve got one more day in the 80s coming up for Tuesday before the May-like warmth takes a backseat to more seasonable March temperatures. Temperatures will soar into the mid-80s in most spots except at the immediate coast as winds out of the west and northwest pin the seabreeze. We look to threaten record highs both at the airport and at downtown Charleston one more time — 86° and 83°, respectively, both set in 1961 — before a cold front sweeps through the area in the late afternoon/early evening hours.

Dewpoints will fall throughout the day as low-level moisture mixes out into an increasingly dry airmass. Once the front gets through, temperatures should hold in the upper 70s before falling quickly once daytime heating is lost. The front will pass through with little fanfare other than a wind shift more toward the north and then the northeast as cool high pressure builds in behind it. We’ll bottom out on Wednesday in the mid-to-upper 40s — easily the coolest start to a day since mid-February — and only top out in the mid-to-upper 60s in the afternoon, perhaps as much of a 20° drop from Tuesday’s high!

The week ahead: End of the heat — for now

/ March 5, 2023 at 10:47 PM

If you’ve enjoyed this stretch of exceptionally warm weather for this point in the year, savor the next couple days as we will be cooling off by mid-week, with this cooler weather looking to persist for a while as the pattern flips more favorably for below-normal temperatures for much of the continental US.

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Weekend forecast: Aside from pollen, a beautiful weekend to get outside

/ March 3, 2023 at 11:16 PM

If it weren’t for the pollen, I’d unequivocally endorse this weekend as a great one to get out and about. Once a cold front and its associated thin line of showers clears the area overnight, skies will clear and give us a brilliant couple days. We start Saturday in the mid-60s as some of the slightly cooler and drier air lags a bit, but we’ll see dewpoints mix out nicely as the day goes on, allowing for a comfortably warm day as temperatures approach 80° but with less humidity than the past few days.

A secondary cold front will come through overnight Saturday into early Sunday morning. It will be starved of moisture, so a dry passage is expected. The airmass behind this front is more noticeably cooler and drier. You’ll certainly feel the difference when we start Sunday around 50° — the coolest start to a day since the temperature bottomed out at 48° on February 20 — and only see temperatures rise into the low-to-mid 70s in the afternoon despite pristine skies. We’ll see some occasionally breezy conditions both days, but other than that, really nice weather is in store with a little more seasonable feel on the way.

Friday & the weekend: Windy Friday, clearing Saturday, cooler Sunday

/ March 2, 2023 at 6:41 PM

Changes are coming in the forecast as we get through the weekend as the abnormal warmth for this point in the year finally starts to get blunted a bit.

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Thursday: One last day of record-challenging warmth

/ March 1, 2023 at 8:13 PM

We had another record warm day in the Lowcountry today. The high at the airport reached 86°, breaking the record of 83° set in 2017. Despite the seabreeze making more of an inroads today, Downtown Charleston appears to have tied its record high as well, topping out at 79° to match the mark on March 1, 1918.

We will have one more day of record-challenging temperatures on Thursday before some of the extreme warmth begins to subside. Highs should top out once again in the mid-80s, getting within spitting distance of the record high of 85° set in 1997. This is despite some additional cloud cover and perhaps a few showers and maybe a thunderstorm in the afternoon and evening hours as southwesterly winds ahead of a cold front continue to strengthen across the area. Most of us will get the day in rain-free, though, with the better risk of showers and storms to our north near a frontal boundary. (This might or might not be such a great thing considering the absolute onslaught of pollen that continues across the Lowcountry!)

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Rest of the work week: Record books remain under siege, but changes are coming

/ February 28, 2023 at 10:01 PM

February — and meteorological “winter” — will close on an abnormally warm note. Today’s high of 86° at the airport tied the record high first set in 1962. This stretch of record warmth looks to continue as we kick off March and meteorological spring, but there are signs that cooler weather is on the horizon, both this weekend and in the longer term.

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Tuesday: Another day of record-challenging warmth

/ February 27, 2023 at 10:12 PM

Mostly sunny skies and westerly winds will combine to bring temperatures in striking distance of additional records on Tuesday. Highs across the area will generally top out in the low-to-mid-80s, with the warmest weather away from the coast. The seabreeze is going to have a tough time getting too far inland with the persistent and occasionally breezy west winds, which should spread the 80s onto the barrier islands. The beaches should run much cooler, with temperatures in the low-to-mid-70s right on the coast.

The record high for Tuesday is 86°, set in 1962. While we may not tie or break that record, the record high minimum temperature of 63° set in 2021 certainly looks attainable.

We will continue to get near record highs for a good chunk of the rest of the week before a cold front — and perhaps some strong storms — approach the area Friday.