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.
Wednesday could be a busy weather day here in the Lowcountry as a very dynamic storm system moves into the eastern half of the continental US, dragging a cold front through the Southeast throughout the day with showers and thunderstorms ahead of it.
There’s not too much to write home about in the weather department for Tuesday. We’ll get off to a near-freezing start in the metro area, with temperatures dipping below 32° further inland as well as in more rural spots. Plenty of sunshine, though, will help drive temperatures to around 60° in the afternoon. Overall, a bright, brilliant late January day.
The week ahead will feature temperatures generally at or slightly below normal for this point of the year aside from Wednesday, when temperatures will head into the low 70s ahead of a cold front.
Sunday will be an active weather day across the area as a somewhat complex storm system moves through the Southeast US. Needed rain will fall throughout the day, but some of that rain might be heavy at times near a morning high tide that would cause flooding on a sunny day.
Despite thickening cloud cover and a cool wedge of high pressure building in Saturday, it’ll be the day to do anything outside as Sunday looks more active with some heavy rain at times and maybe some coastal flooding in the morning to boot.
Thursday will be quite a warm day ahead of a cold front that will swing through late night/early Friday morning. We’ll start the day some 15+° above normal as lows only bottom out in the mid-50s. Temperatures will head into the mid-70s in the afternoon, with some upper 70s possible in spots.
It’ll be a bit of a windy day: expect winds to kick up to 15-20 MPH sustained with gusts 25-30+ MPH particularly in the afternoon hours. Higher speeds will be possible on bridges, and a Lake Wind Advisory is in effect for Lake Moultrie tomorrow as well. Hold on to your hats and steering wheels if navigating the bridges is in your travel plans tomorrow.
There will be a slight chance of showers as the front gets closer Thursday evening. Some of the high-res guidance sparks some additional showers as a remnant boundary ahead of the front itself perhaps intersects a seabreeze, but widespread heavy rain is not expected and no thunderstorms are forecast.
Temperatures look to stay well on the warm side of normal heading into the weekend, especially Wednesday and Thursday before a front late Thursday brings temperatures back down a little bit.
The rest of the work week will be punctuated with a warming trend through Thursday before a cold front knocks temperatures down slightly for Friday. There will be a few shower chances, but mostly after dark.
We have another round of subfreezing lows ahead for tonight, with clear skies and calm winds allowing temperatures to fall to the low 30s to start the day away from the warmer coastline. It won’t be a terribly long-duration freeze, but regardless, make sure pets are in and plants are covered again tonight.
After that chilly start on Monday, we’ll see temperatures head into the low 60s in the afternoon as shortwave ridging aloft and more southerly winds kick in. We’ll see an increase in high clouds as the day goes on, but overall, expect plenty of sunshine for any outdoor Martin Luther King, Jr. commemorations.
The weather turns quieter but much cooler this weekend as we get the first real taste of January weather almost mid-way through the month. After showers depart overnight, clouds will break up and temperatures will bottom out generally in the mid-30s; northwest winds 10-15 MPH will make it feel closer to the upper 20s. Despite clearing skies, the high will struggle to about 50° on Saturday with breezy northwest winds ongoing.
Winds slacken some, but not completely, Saturday evening into Sunday. We should see freezing temperatures in the metro for at least a few hours Sunday morning as lows drop to around 30-31°. The continued cool advection from the northwest will help bring these colder temperatures to the coast, though we should stay just above freezing there. This isn’t a December 2022 freeze by any stretch, but be sure to have your pets inside and loved ones accounted for. A little ridging begins to nose in aloft, which will allow highs to head a little more north of 50° than we will see on Saturday.
Monday will start in the mid-30s once again, with calm to light winds expected, taking the bite off the wind chill. Continued mostly sunny skies will allow the high to reach up around 60°, making for fairly nice conditions for outdoors Martin Luther King, Jr. commemorations.