We’ll say goodbye to 2020 with quite a few choice words, warm temperatures, and perhaps a few showers mixed in at times. Showers will be possible at any point during the day Thursday, including up to midnight, so keep rain gear close if you are out and about.
Temperatures will turn noticeably warmer, with highs recovering into the 70s as we enter the warm sector ahead of our next storm system, which will hang around for a few days before clearing the area Sunday.
Details are coming into focus around what will be quite a strong storm for the Eastern Seaboard for Christmas Eve. Model guidance is in unanimous agreement for a strong band of showers and thunderstorms ahead of the cold front that could produce occasional damaging wind gusts during the afternoon and early evening hours. The good news is that this activity should get out of here by the time Santa is ready to make his rounds in the Lowcountry.
Wednesday will be the last rain-free shopping day before Christmas. Cloud cover will be filling in as the day goes on ahead of what looks to be a fairly potent storm system for Christmas Eve. Temperatures around the area will start out chilly — low 40s, with wind chills around 37-38° possible with a light breeze — before warming into the mid-60s despite the cloud cover. A shower or two can’t be ruled out closer to midnight Wednesday as well.
We have a rather gorgeous Tuesday ahead as high pressure moves along to our northeast. Downslope flow will continue, allowing temperatures to warm back into the low 60s for the afternoon after starting out in the low 40s under full sunshine.
This evening, a coastal low is beginning to develop off the Georgia coast. This low will move northward tonight into tomorrow, eventually turning into quite the nor’easter for New England. Locally, expect periods of showers to continue tonight into Wednesday as the low lifts northward and a cold front approaches from the west. Temperatures will remain chilly, only topping out in the low 50s in the afternoon. The front will clear the area during the evening, giving way to drier air for Thursday.
Clouds will increase overnight into Tuesday morning, giving the day a mostly cloudy look with just a few peeks of sun possible in the morning and early afternoon hours. It’ll feel noticeably colder in the wake of today’s cold front — highs should only top out in the mid-50s.
As low pressure organizes off the coast and begins to move northward, some overrunning should take place, generating scattered light showers across the area by mid-afternoon. Showers will continue into the evening, with the best rain chances arriving with the cold front Wednesday.
Mostly sunny skies and warmer temperatures will make for a very nice Thursday across the Lowcountry. Expect temperatures to start out in the upper 30s to low 40s in the morning, followed by highs topping out in the mid-60s — just a touch above normal for December 10.
After a fun evening of rain mixed with graupel, we return to clear and chilly conditions for Tuesday. Temperatures will fall to freezing in a few spots well inland, with low to mid-30s across much of the Charleston metro. Factor in a decent northwest breeze and it’ll feel closer to the mid-20s in the morning.
We’ll remain under full sunshine throughout the day, but temperatures will struggle to the low 50s as cool air continues to filter into the area.
Bring in your pets and plants again tonight as temperatures will be headed toward the freezing mark once more, generally along and inland of Highway 17. The freeze won’t be quite as widespread as we saw this morning, but expect temperatures to fall into the 30s close to the coast, including into downtown Charleston.
After the chilly start, temperatures will rebound back into the 60s for the afternoon as winds turn more onshore throughout the day. Expect clouds to increase as well from the west ahead of our next storm system, which brings rain back to the area for Friday.
Bring in plants and pets tonight as temperatures will be dropping into the upper 20s in many spots away from the coast. Temperatures will dip into the 30s even near the coast, with an outside shot at freezing at downtown Charleston.
At least the afternoon will be warmer than today’s 48° — the airmass will slowly modify starting Wednesday, allowing for highs in the mid-50s. We’ll be back in the 60s by Thursday with increasing clouds ahead of our next storm system.