Also, downtown Charleston has its coldest temperature in January at 10 degrees. The all-time record lows occur at the Charleston and Savannah airports, with 6 degrees and 3 degrees, respectively.The leading edge of an arctic air mass produces a few snow flurries in parts of Charleston and Berkeley counties.In addition, gale force winds occurred over the Atlantic and in Charleston Harbor, with wind gusts over land of 30-35 mph. There was even a light glaze on cars and grassy surface in a few spots. An arctic cold front moves through the area accompanied by light snow and sleet in several areas, mainly in SC during the evening.Downtown Charleston drops to 20 degrees, its coldest reading since 1996. This includes the coldest of 13 degrees at both Allendale and Walterboro. The polar vortex plunges south into southern Canada and the Great Lakes, causing temperatures locally down into the teens in many areas.This included 53 mph at Sullivans Island, 52 mph at Sapelo Island and at Buoy 41004, with even 50 mph as far inland as Hunter Army Air Field near Savannah and at Fort Stewart in Hinesville. Winds reached 50 mph or more across parts of the area.Dense sea fog closes the Charleston Harbor and also impacts the nearby Atlantic waters, as visibilities fall to near zero during much of this 3 day period.The highest winds were in excess of 50 or 60 mph, and there were numerous reports of wind damage behind the front, along with blowout tides at the coast. Rainfall amounts totalled as much as 3 to 4 inches across parts of inland Georgia and 2 to 3 inches across parts of inland South Carolina. Deepening low pressure that moves through the Southeast and followed by cold advection behind a strong cold front brings heavy rains and then very strong winds to the area.The Charleston Airport recorded snow on the ground for 5 consecutive days which is the most on record. Due to the continued cold air in place after the storm, the snow and ice remained on the ground in spots for many days causing significant disruptions to travel and commerce. This made it the snowiest January on record at Charleston Airport and 2nd snowiest at Savannah Airport (KSAV). Charleston Airport (KCHS) measured 5.3 inches of snow, the 3rd greatest daily snowfall on record. The storm produced a variety of wintry precipitation, including snow, sleet and freezing rain. A rare winter storm affected southeast South Carolina and southeast Georgia on January 3, 2018.The event is even more impressive since less than 19 hours earlier there was shallow coastal flooding in the Charleston area. The highest gusts were 49 mph at Fort Johnson, 48 mph on Tybee Island and the Don Holt Bridge in North Charleston, 47 mph at Buoy 41008 and Fort Pulasksi, and 46 mph at Beaufort. Strong west and northwest winds developed in wake of an arctic cold front, resulting in blowout tides and wind gusts past 40 or 45 mph.Even the beaches experienced a freeze with temperatures in the upper 20s and lower 30s. It was a cold morning across many areas, with readings as low as 14 at Harleyville, Jamestown and Round O in South Carolina.Dense sea fog closes the Charleston Harbor and also impacts the nearby Atlantic waters, as visibilities fall to near zero.It is short-lived however, as an arctic cold front quickly moves through with isolated reports of trees and powerlines down, as winds reach as high as 47 mph on Tybee Island and 42 mph at Hunter Army Airfield in Savannah. Dense fog closes the Charleston Harbor and also impacts the adjacent Charleston County Atlantic waters with visibilities down under 1/2 nm.The highest wind was at the Sabsoon R2 Tower, which recorded 54 mph.
Winds reached as high as 40 to 50 mph across parts of southern South Carolina, southeast Georgia and the adjacent Atlantic waters.An F0 tornado briefly touched down, significantly damaging a mobile home, causing minor damage to another mobile home, and knocking down trees in southern Jenkins County, GA.
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