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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.

The week ahead: Warmest week of 2025 thus far, with sea fog and a slight shower chance Friday

/ February 2, 2025 at 11:48 PM

A mostly quiet week of weather lies ahead across the Tri-County area with high pressure aloft contributing to some of the warmest weather thus far in 2025.

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Weekend forecast: Plenty of sunshine, pleasant temperatures

/ January 31, 2025 at 6:03 PM

This weekend’s weather is looking pretty good in the wake of a front that will move by early Saturday. A few showers are possible late Friday into early Saturday, but they will clear the area well before sunrise.

With the front out of the way, we’ve got a nice day ahead on Saturday as lows around 50° warm to the upper 60s to around 70° in the afternoon with just a few clouds at times. Breezy conditions on Friday night will calm down by Saturday, too.

We’ll run a little cooler on Sunday as high pressure wedges into the area from the north, but we’ll still be well above normal for this point in the year. Expect mid-40s lows to warm to the mid-to-upper 60s in the afternoon with generally partly cloudy skies expected.

We’ll turn even warmer next week, with some of the warmest weather so far this year expected as highs soar well into the 70s across much of the area with no rain chances expected — a very, very far cry from how January went, which looks like it will go down as the coldest on average since 1988!

Friday & the weekend: Staying on the warm side to greet February

/ January 30, 2025 at 6:16 PM

We stay well on the warm side of normal as we finally say goodbye to January and welcome February. Friday will be a mostly cloudy and breezy day ahead of a cold front. Despite the cloud cover, warm air pumping in from the south will drive highs back into the 70s in the afternoon. There will be a risk of showers primarily after sunset through the overnight across the metro area. If you have late Friday plans, be ready to possibly run into some rain. Amounts should generally be light as these showers should be booking it, and they should be gone before sunrise Saturday.

The front clears the area Saturday with some drier air moving in, though we should still see highs top out in the low 70s with much more sunshine. Sunday turns a little cooler as winds turn a little more onshore with high pressure wedging southward into the area. Still, expect highs in the upper 60s under partly cloudy skies — not too shabby, especially if we get caught in a classic Groundhog Day temporal loop. Enjoy!

Thursday: A touch cooler, but still a nice late-January day

/ January 29, 2025 at 9:34 PM

After the warmest day of 2025 so far, in which we reached 72° at the airport and 70° downtown, a dry cold front knocks our temperatures down a few degrees for Thursday, but it’ll still feel quite good outside. Expect mostly sunny skies to help low temperatures in the low-to-mid-40s warm to the mid-60s in the afternoon. An easterly wind at 10 MPH will keep things a touch on the breezy side, but otherwise, no concerns for Thursday.

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Rest of the work week: Warmer-than-normal temperatures prevail

/ January 28, 2025 at 9:05 PM

Warmer-than-normal temperatures will be the headline for the rest of the work week as high pressure ridges in a bit aloft. We’re still on track to see our first 70°+ reading of 2025 on Friday, too.

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Tuesday: Sunny & warmer; 70s by the end of the week

/ January 27, 2025 at 11:05 PM

Tuesday will feel a lot better than Monday did as a front swings through with mostly a drier airmass, but not nearly as cold as the one we dealt with last week. We start the day in the upper 30s and warm to around 60° in the afternoon under mostly sunny skies. The black ice threat has ended, especially after Monday’s rain melted much of the rest of the snowpack and any lingering ice patches. If you have some snow left, it won’t be much longer, especially as we get into a warming trend this week.

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The week ahead: After a taste of winter weather, spring-like conditions close January

/ January 26, 2025 at 10:48 PM

January will end much differently than how it has gone thus far as temperatures head around and even above normal to close out the month and bring in February with just a few rain chances mixed in to start and end the week.

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Weekend forecast: End of black ice in sight

/ January 24, 2025 at 10:22 PM

Snowmelt will accelerate this weekend with warmer temperatures and more sunshine each afternoon. We will still deal with freezing temperatures each morning, though, which brings the specter of black ice back to the forecast for a couple more days. Saturday morning looks particularly frigid, with clear skies, calm winds, and existing snowpack contributing to temperatures falling into the low 20s. Winds go southwesterly during the day Saturday, though, and temperatures will head to around 50° in the afternoon. With mostly sunny skies expected, we should get another solid day of melting.

Whatever’s left of the snowpack on Saturday probably won’t make it too far past Sunday. We start Sunday in the upper 20s, but once we head above freezing on Sunday morning, we’ll stay above for the foreseeable future. Temperatures will head to the mid-50s in the afternoon with a few more clouds in the mix. Despite a few more clouds, melting will continue apace. And with lows not expected to get below freezing overnight Sunday into Monday morning, the risk for black ice will come to an end.

The warming trend continues next week, especially starting Tuesday as highs return to the 60s for a few days for mid-week — a far cry from where we’ve been, that’s for sure!

Friday & the weekend: Slow warming trend as snowpack continues to melt

/ January 23, 2025 at 9:11 PM

Snowpack is heading into its third day here in the Lowcountry, with many roads still a little on the sketchy side and black ice being a concern once again overnight Thursday into Friday morning. It’s kept us on the chilly side, too: the high today hit 40° at the airport, while the high of 38° at downtown Charleston was a record cold high temperature for January 23. We’re already back into the 20s as of this writing (8:45 PM-ish) with temperatures expected to fall into the low 20s given much less cloud cover than last night and the continued snowpack. Winds a little more out of the west should kick in on Friday, though, and we should see highs peak in the mid-40s along with more sunshine than we saw Thursday. Still, melting during the day Friday should once again contribute to a black ice threat overnight into Saturday morning, so keep that in mind if you head out.

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Thursday: Record cold in the morning with single-digit wind chills possible

/ January 22, 2025 at 8:34 PM

With plenty of snowpack still on the ground, expect a very, very cold night that should set daily records on Thursday morning as lows could fall to as low as 15°. Mix in the persistent northerly wind and wind chills may fall into the single digits. If you’re headed outside tomorrow morning, be bundling up in lots of layers and be very careful for re-frozen ice on steps, sidewalks, and roads.

Additional cloud cover on Thursday isn’t gonna do us a lot of good in the melting department; highs should once again only peak in the upper 30s with mostly cloudy skies generally expected. Wind will remain a bit of a factor, and it’ll feel like the 20s for much of the daytime period.

Getting into Thursday night, I’d expect another round of refreezing and black ice concerns. If you don’t have to travel, it’s probably best to stay hunkered in one more day.

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