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Charleston Weather Blog

Forecast explanations, atmospheric science, and other cool weather-related stuff for Charleston, SC

The week ahead: January 28-February 3

/ January 27, 2019 at 5:54 PM
Seven-day forecast from the National Weather Service in Charleston.

We will be closing January with another Arctic cold snap making its way across the eastern half of the U.S. We won’t be immune from this cold snap, but it will not be a terribly severe or long-lasting cold for us in Charleston.

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Regarding rumors of snow on Tuesday night

/ January 26, 2019 at 4:45 PM
GEFS probability for snow through February 3. “So you’re saying there’s a chance.”
Source: NWS Environmental Modeling Center

I’ve received a few questions around the potential for snow on Tuesday night based on the output from a prominent weather app which will remain unnamed. Long story short: I wouldn’t bet on it.

Read on for details…

Blustery start to a quiet and chilly weekend

/ January 24, 2019 at 5:29 PM
Three-day forecast from the National Weather Service. Friday: High 55, low 36, mostly sunny. Saturday: High 55, low 30, mostly sunny. Sunday: High 57, low 32, partly cloudy.
Three-day forecast for Friday and the weekend (January 25-27) from the National Weather Service.

After a rainy and windy start to Thursday, we’ll settle in to a cool and mostly sunny weekend with high pressure firmly in control of our weather.

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The (rest of the) week ahead: January 22-27

/ January 22, 2019 at 1:21 PM
National Weather Service forecast for Charleston from January 22-28, 2019.

The temperature rollercoaster rides on. This morning, we were in the 20s in many spots in the Lowcountry, but as winds begin to turn more easterly and then southerly, the warm air (and moisture) pump will be back in place for a couple days. (We’re already up to the low 50s as of 1PM.) This will be followed by a more prolonged period of below-normal temperatures after a frontal passage Friday.

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Looking ahead: Jumping aboard the Pneumonia Express

/ January 17, 2019 at 1:55 PM
NWS forecast temperatures from Friday, January 18 to Wednesday, January 23.

Buckle up: We’ve got quite a temperature rollercoaster (and an unsettled pattern in general) headed our way over the next couple weeks.

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The week ahead: January 14-20

/ January 14, 2019 at 8:24 AM
Seven-day forecast from the National Weather Service. Chilly start, but it gets warmer as the week progresses. Next rain chances by Friday and the weekend. (Sorry.)

The latter half of January looks to usher in a more unsettled pattern that seems reminiscent of December, at least in its timing: Unsettled weekends followed by mostly dry (and occasionally chilly) work weeks. Indeed, that’s how this week looks to go down.

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After a return to winter, another unsettled weekend lies ahead

/ January 10, 2019 at 1:46 PM
Three-day forecast from the National Weather Service in Charleston, updated at 3 PM on January 10. Chilly weather continues into Sunday before a wedge of high pressure lifts northward.
Three-day forecast from the National Weather Service in Charleston, updated at 3 PM on January 10. Chilly weather continues into Sunday before a wedge of high pressure lifts northward.

We’ve been fortunate to catch a bit of a break from the wet weather over the last few days. Unfortunately, this respite looks to come to an end this weekend as a storm system approaches from the west.

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The week ahead: January 7-13

/ January 7, 2019 at 12:28 AM
The seven-day forecast from the National Weather Service in Charleston shows mostly dry conditions until the weekend.

I hope everybody enjoyed this absolutely fantastic weekend of weather. Our stretch of dry weather should continue through the rest of the work week before unsettled conditions return to the forecast for the weekend.

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2018, reviewed: Another top-5 warm year, and more numbers

/ January 3, 2019 at 8:30 AM

Despite January’s frigid start, 2018 landed within the top-five warmest years on record at the airport, tying 1998 with an average temperature of 67.9°. This is the fourth consecutive year that average temperatures have landed within the top five warmest on record. 1990 still reigns supreme, though, as the warmest recorded year with an average temperature of 69.3°.

Data for this post is sourced from a compilation of records by the Southeast Regional Climate Center as well as the National Weather Service forecast office in Charleston, SC. Records at the North Charleston climate site begin in 1938.

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2018, reviewed: A relatively quiet severe weather year

/ January 2, 2019 at 8:30 AM
Severe weather warning counts since 1986 for the NWS Charleston, SC county warning and forecast area. Storm-based warnings for tornadoes and severe thunderstorms began in October 2007, replacing warnings issued for whole counties.
Source: Iowa Environmental Mesonet

2018 was highly irregular in one fairly beneficial way: There was an overall lack of severe weather (at least as far as tornadoes, straight-line damaging winds, and hail go) during the year.

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