A cold front shifted south through the region on January 20th, allowing cool and dry air from a polar air mass to begin filtering into the region.  The front stalled to our south on January 21st, while upper level energy approached the region, and a wave of low pressure moved NE along the stalled front offshore.  This allowed precipitation to spread into, or develop over, our region during the afternoon of January 21st.  The precipitation generally started out as light rain then it transitioned to freezing rain, sleet, and/or snow, or a combination thereof, as low level temperatures continued to fall. The precipitation continued through the evening and night of January 21st, then shifted out of the region late that night.  Total snow amounts generally ranged from 3-4 inches across the NE Midlands of SC, to 2-3 inches over other portions of the northern and central Midlands, to lesser amounts elsewhere.  Freezing rain amounts ranged from a trace to about 1/8 of an inch across much of the region.  No reports of significant damage or downed trees/power lines were received, though there were reports of vehicle accidents.  The fact that the snow and ice fell on a Friday evening through early on a Saturday morning may have minimized impact.

Winter Weather in NORTHWESTERN ORANGEBURG, SOUTH CAROLINA
From 21-JAN-22 17:00:00 to 22-JAN-22 02:00:00 (EDT-4)
Reported by: Emergency Manager

Emergency Manager reported freezing rain amounts up to around 1/8 inch (0.13 inch).  Light amounts of snow and/or sleet, less than 0.5 inch, were also reported by CoCoRaHS observers.

Winter Weather in CENTRAL ORANGEBURG, SOUTH CAROLINA
From 21-JAN-22 17:30:00 to 22-JAN-22 03:00:00 (EDT-4)
Reported by: Emergency Manager

Emergency Manager reported freezing rain amounts up to around 1/8 inch (0.13 inch).   Around 0.5 inch of sleet was also reported.

Winter Weather in SOUTHEASTERN ORANGEBURG, SOUTH CAROLINA
From 21-JAN-22 18:00:00 to 22-JAN-22 04:00:00 (EDT-4)
Reported by: Emergency Manager

Emergency Manager reported freezing rain amounts up to around 1/8 inch (0.13 inch).

Winter Storm in NORTHERN LANCASTER, SOUTH CAROLINA
From 21-JAN-22 19:00:00 to 22-JAN-22 01:00:00 (EST-5)
Reported by: CoCoRaHS

A CoCoRaHS observer on Johnna Ln, in the northern tip of Lancaster Co,  reported 1.7 inches of snow. A public report of around 1.7 inches of snow near Van Wyck was also received via social media.

Winter Weather in CLARENDON, SOUTH CAROLINA
From 21-JAN-22 17:00:00 to 22-JAN-22 04:00:00 (EST-5)
Reported by: Emergency Manager

Emergency Manager reported snow amounts up to 0.5 inch across the southern and central part of the county, to around 1 inch over the northern part of the county.  A CoCoRaHS observer reported 0.4 inches of snow near Manning. Very little ice accumulation reported.

Winter Storm in SOUTHERN LANCASTER, SOUTH CAROLINA
From 21-JAN-22 17:00:00 to 22-JAN-22 01:30:00 (EST-5)
Reported by: Trained Spotter

Several reports of snow accumulations around 2 inches came from the public, via social media, and from trained spotters, in Lancaster and Buford and vicinity.  The highest snow amount reported was 2.4 inches in the Buford area near SC Hwy 9 and SC Hwy 522.

Winter Storm in CHESTERFIELD, SOUTH CAROLINA
From 21-JAN-22 16:00:00 to 22-JAN-22 02:30:00 (EST-5)
Reported by: Trained Spotter

Reports of total snow accumulations around 3 to 4 inches came in from multiple sources across the county.  The highest snow amount reported was 4 inches in Cheraw. Other reports included around 3.5 inches near Chesterfield and Patrick, and 3 inches in Jefferson. Before the snow fell, light amounts of freezing rain and sleet were reported in Jefferson and Chesterfield.

Winter Storm in FAIRFIELD, SOUTH CAROLINA
From 21-JAN-22 17:00:00 to 22-JAN-22 01:30:00 (EST-5)
Reported by: Public

Reports of total snow accumulations around 2 to 3 inches came in from multiple sources across the county. The highest snow amount reported was 3.4 inches in Longtown.

Winter Storm in KERSHAW, SOUTH CAROLINA
From 21-JAN-22 16:00:00 to 22-JAN-22 02:00:00 (EST-5)
Reported by: Public

Numerous reports of total snow accumulations around 2 to 3 inches came in from multiple sources across the county.

Winter Storm in NEWBERRY, SOUTH CAROLINA
From 21-JAN-22 18:00:00 to 22-JAN-22 01:00:00 (EST-5)
Reported by: Public

Reports of total snow accumulations around 1 to nearly 2 inches came in from multiple sources across the county, mainly near Newberry, Prosperity, and Little Mountain and vicinities.  The highest snow amount reported was 1.9 inches near Newberry, with 1.8 inches in Prosperity and Little Mountain.

Winter Storm in LEE, SOUTH CAROLINA
From 21-JAN-22 16:00:00 to 22-JAN-22 03:00:00 (EST-5)
Reported by: Public

Reports of total snow accumulations of around 1.5 to 2.5 inches came in from multiple sources across the county. The highest snow amount reported was 2.5 inches in Lee State Park southeast of Bishopville. Before the snow fell, light amounts of freezing rain were reported in Bishopville.

Winter Storm in LEXINGTON, SOUTH CAROLINA
From 21-JAN-22 16:00:00 to 22-JAN-22 02:00:00 (EST-5)
Reported by: Public

Reports of total snow accumulations around 2 to 3 inches came in from multiple sources across the county, mainly across the northern and central portions of the county. The highest snow amount reported was 3 inches in Irmo. Before the snow fell, freezing rain amounts ranging from a trace to about one tenth of an inch were received across the county, and some light amounts of sleet were also reported.

Winter Storm in RICHLAND, SOUTH CAROLINA
From 21-JAN-22 16:00:00 to 22-JAN-22 02:00:00 (EST-5)
Reported by: Public

Reports of total snow accumulations of around 2 to 3 inches came in from multiple sources, mainly across northern and central portions of the county.   Before the snow fell, light amounts of freezing rain, ranging from a trace to around one tenth of an inch, were received along with light amounts of sleet also reported.

Winter Storm in SUMTER, SOUTH CAROLINA
From 21-JAN-22 16:00:00 to 22-JAN-22 03:00:00 (EST-5)
Reported by: Public

Reports of total snow accumulations ranging from 0.5 inch to 2 inches came in from multiple sources across the county, mainly central and northern portions of the county.   The highest snow amount reported was 2 inches from a CoCoRaHS observer north of Shaw AFB.  Before the snow fell, reports of light amounts of freezing rain, ranging from a trace to around 0.05 inch, were received around Sumter and vicinity.

Winter Storm in SALUDA, SOUTH CAROLINA
From 21-JAN-22 18:00:00 to 22-JAN-22 00:30:00 (EST-5)
Reported by: CoCoRaHS

A CoCoRaHS observer in Saluda reported 1.7 inches of snow.  A CO-OP observer in Saluda reported 1.5 inches of snow.  A CoCoRaHS observer 6 miles SW of Saluda reported 1.5 inches of snow.

Winter Weather in CALHOUN, SOUTH CAROLINA
From 21-JAN-22 17:00:00 to 22-JAN-22 03:00:00 (EST-5)
Reported by: CoCoRaHS

A CoCoRaHS observer reported 0.5 inch of snow in the NW part of the county.  A light amount of freezing rain, around 0.01 inch, was reported by the public in St. Matthews.

Winter Weather in EDGEFIELD, SOUTH CAROLINA
From 21-JAN-22 17:00:00 to 22-JAN-22 00:00:00 (EST-5)
Reported by: CoCoRaHS

Snow amounts of a little over an inch were reported north of Edgefield, and in the northern part of the county near US Hwy 378 and Faulkner Mountain Rd.  Snow amounts around 0.5 inch were reported near Trenton and vicinity.

Winter Weather in AIKEN, SOUTH CAROLINA
From 21-JAN-22 16:00:00 to 22-JAN-22 02:00:00 (EST-5)
Reported by: Public

Light snow amounts of 0.5 inches or less were reported across the county.  Light amounts of freezing rain and sleet were reported near Graniteville.

Winter Weather in BARNWELL, SOUTH CAROLINA
From 21-JAN-22 18:00:00 to 22-JAN-22 03:00:00 (EST-5)
Reported by: Public

Light snow amount of 0.3 inch reported near Williston.

Winter Weather in BAMBERG, SOUTH CAROLINA
From 21-JAN-22 18:00:00 to 22-JAN-22 04:00:00 (EST-5)
Reported by: Public

Freezing rain amounts of around 0.05 inch, and light sleet amounts of 0.10 inch,  reported in Bamberg.

Winter Weather in MCCORMICK, SOUTH CAROLINA
From 21-JAN-22 18:00:00 to 22-JAN-22 00:00:00 (EST-5)
Reported by: COOP Observer

A snow amount of 1.3 inches was received from a CO-OP observer in McCormick.  Other reports of snow amounts around 1 inch in McCormick and vicinity, along with some light sleet, were received via CoCoRaHS.