A severe quasi-linear convective system (QLCS) moved through southeast South Carolina during the afternoon into early evening hours of April 5, 2022 as a mid-level shortwave ejected rapidly across the region in advance of a surface cold front. The environment ahead of the QLCS was favorable for severe local storms as southerly winds spread mid 60 dewpoint temperatures into a warm sector across the Southeast United States and favorable mid-level lapse rates and lifted index values helped produce mixed layer convective available potential energy (MLCAPE) as high as 1500-2000 J/kg during peak surface heating across southeast South Carolina. Within the warm sector, strong shear associated with 50-70 knot low and mid-level jets beneath the left front quadrant of a 120 knot upper-level jet, 0-6 km bulk shear around 50 knots, and 0-3 km storm relative helicity in excess of 300 m2/s2 were supportive of well organized convection and potentially embedded supercell thunderstorms in a QLCS capable of producing a prolonged path of damaging winds and strong long-track tornadoes. As the QLCS swept through southeast South Carolina, a few discrete supercell thunderstorms became exceptionally strong near or just ahead of the main line of thunderstorms, producing damaging winds, moderate size hail, and strong tornadoes.
A total of 5 confirmed tornadoes occurred across southeast South Carolina in the Charleston County Warning Area, including two long track EF-3 tornadoes, one which developed in Allendale County southwest of Allendale, SC and ended near Sycamore, SC with an approximately 13.3 mile path, and a second tornado which began in Allendale County near Ulmar, SC, then crossed into the Columbia County Warning Area in Bamberg County at peak strength, before continuing and ending in Orangeburg County with an approximately 34.8 mile path. The South Carolina Forestry Commission estimated 3,389 forest acres damaged by strong winds and tornadoes in Allendale County alone during the severe weather outbreak.

Tornado in ALLENDALE, SOUTH CAROLINA
From 05-APR-22 17:03:00 to 05-APR-22 17:06:00 (EST-5)
Location: ULMERS
Tornado F-scale: EF1
Reported by: NWS Storm Survey

A National Weather Service Storm Survey Team confirmed an EF-1 tornado with an estimated maximum wind speed of 95 MPH in Allendale County, South Carolina, which eventually tracked northeast for nearly 35 miles, becoming a strong EF-3 tornado with an estimated maximum wind speed of 160 mph across Bamberg County, South Carolina before dissipating in Orangeburg County, South Carolina (see Storm Data from Columbia, South Carolina for Bamberg and Orangeburg Counties).
The long-track tornado initially developed in Allendale County, approximately 1/3 mile north of Highway 301 across a farm just west of Well Branch Road around 503 PM. Near this location, the tornado threw a grain silo and flipped and threw a few farm trailers and vehicles, consistent with an EF-1 tornado rating. The tornado continued northeast across Wells Branch Road, where it widened to approximately 465 yards and downed many trees before crossing into Bamberg County near the intersection of Highway 321 and Highway 301 at 506 PM.

Lightning in DORCHESTER, SOUTH CAROLINA
From 05-APR-22 18:20:00 to 05-APR-22 18:20:00 (EST-5)
Location: ROSINVILLE
Property damage: 60.00K
Reported by: 911 Call Center

The Dorchester County Warning Point reported a mobile home at the 300 Block of Spring Branch Road destroyed by a fire likely caused by a lightning strike.

Thunderstorm Wind in COLLETON, SOUTH CAROLINA
From 05-APR-22 17:30:00 to 05-APR-22 17:31:00 (EST-5)
Location: RUFFIN
Magnitude: 50.00 EG
Reported by: Law Enforcement

The South Carolina Highway Patrol reported a tree down near the intersection with Southern Charm Road and Azalea Patch Road.

Thunderstorm Wind in COLLETON, SOUTH CAROLINA
From 05-APR-22 17:37:00 to 05-APR-22 17:38:00 (EST-5)
Location: STOKES
Magnitude: 50.00 EG
Reported by: Law Enforcement

The South Carolina Highway Patrol reported a tree down near the intersection of Ruffin Road and Jones Swamp Road.

Thunderstorm Wind in COLLETON, SOUTH CAROLINA
From 05-APR-22 17:54:00 to 05-APR-22 17:55:00 (EST-5)
Location: SNIDERS XRDS
Magnitude: 50.00 EG
Reported by: Emergency Manager

Colleton County Emergency Management reported a tree down at Lowcountry Highway and Cane Branch Road.

Thunderstorm Wind in COLLETON, SOUTH CAROLINA
From 05-APR-22 18:01:00 to 05-APR-22 18:02:00 (EST-5)
Location: SMOAKS
Magnitude: 50.00 EG
Reported by: Emergency Manager

Colleton County Emergency Management reported a road blocked due to a tree near the intersection of Lowcountry Highway and Buckhead Road.

Thunderstorm Wind in COLLETON, SOUTH CAROLINA
From 05-APR-22 18:02:00 to 05-APR-22 18:03:00 (EST-5)
Location: SMOAKS
Magnitude: 50.00 EG
Reported by: Emergency Manager

Colleton County Emergency Management reported a tree and power lines down near the intersection of Lowcountry Highway and Phoenix Circle.

Thunderstorm Wind in DORCHESTER, SOUTH CAROLINA
From 05-APR-22 18:10:00 to 05-APR-22 18:11:00 (EST-5)
Location: REEVESVILLE
Magnitude: 50.00 EG
Reported by: 911 Call Center

The Dorchester Warning Point reported a tree down at the 500 Block of Cross Creek Road.

Thunderstorm Wind in DORCHESTER, SOUTH CAROLINA
From 05-APR-22 18:15:00 to 05-APR-22 18:16:00 (EST-5)
Location: BADHAM
Magnitude: 50.00 EG
Reported by: 911 Call Center

The Dorchester Warning Point reported a tree down at the 500 Block of Mount Zion Road.

Thunderstorm Wind in DORCHESTER, SOUTH CAROLINA
From 05-APR-22 18:15:00 to 05-APR-22 18:16:00 (EST-5)
Location: BYRD
Magnitude: 50.00 EG
Reported by: 911 Call Center

The Dorchester County Warning Point reported a tree down at the 100 Block of Gum Branch Road.

Thunderstorm Wind in DORCHESTER, SOUTH CAROLINA
From 05-APR-22 18:16:00 to 05-APR-22 18:17:00 (EST-5)
Location: ROSINVILLE
Magnitude: 50.00 EG
Reported by: 911 Call Center

The Dorchester County Warning Point reported a tree down near the intersection of Enoch Lane and Wagers Drive.

Thunderstorm Wind in DORCHESTER, SOUTH CAROLINA
From 05-APR-22 18:18:00 to 05-APR-22 18:19:00 (EST-5)
Location: GROVER
Magnitude: 50.00 EG
Reported by: 911 Call Center

The Dorchester County Warning Point reported a tree down at the 1800 Block of Highway 15 South.

Thunderstorm Wind in DORCHESTER, SOUTH CAROLINA
From 05-APR-22 18:18:00 to 05-APR-22 18:19:00 (EST-5)
Location: ST GEORGE MUNI ARPT
Magnitude: 50.00 EG
Reported by: 911 Call Center

The Dorchester County Warning Point reported a tree down at the 800 Block of Saint Paul Road.

Thunderstorm Wind in DORCHESTER, SOUTH CAROLINA
From 05-APR-22 18:22:00 to 05-APR-22 18:23:00 (EST-5)
Location: HARLEYVILLE
Magnitude: 50.00 EG
Reported by: 911 Call Center

The Dorchester County Warning Point reported a tree down near the intersection of 2nd Bend Road and Addison Road.

Thunderstorm Wind in BEAUFORT, SOUTH CAROLINA
From 05-APR-22 18:09:00 to 05-APR-22 18:10:00 (EST-5)
Location: PRITCHARDVILLE
Magnitude: 45.00 EG
Property damage: 1.00K
Reported by: 911 Call Center

The Beaufort County Warning Point reported power lines down at the 3700 Block of Okatie Highway.

Thunderstorm Wind in BEAUFORT, SOUTH CAROLINA
From 05-APR-22 18:10:00 to 05-APR-22 18:11:00 (EST-5)
Location: PRITCHARDVILLE
Magnitude: 50.00 EG
Reported by: 911 Call Center

The Beaufort County Warning Point reported a tree and power lines down near the intersection of Okatie Highway and Evan Way.

Thunderstorm Wind in BEAUFORT, SOUTH CAROLINA
From 05-APR-22 18:12:00 to 05-APR-22 18:13:00 (EST-5)
Location: GARDENS CORNER
Magnitude: 50.00 EG
Reported by: 911 Call Center

The Beaufort County Warning Point reported a tree down on power lines at 64 Butler Farm Road.

Thunderstorm Wind in BEAUFORT, SOUTH CAROLINA
From 05-APR-22 18:15:00 to 05-APR-22 18:16:00 (EST-5)
Location: BURTON
Magnitude: 50.00 EG
Reported by: 911 Call Center

The Beaufort County Warning Point reported a tree down near the intersection of Roseida Road and Stroman Lane.

Thunderstorm Wind in COLLETON, SOUTH CAROLINA
From 05-APR-22 18:15:00 to 05-APR-22 18:15:00 (EST-5)
Location: WALTERBORO MUNI ARPT
Magnitude: 52.00 MG
Reported by: AWOS

A 60 mile per hour wind gust was recorded at the Lowcountry Regional Airport.

Thunderstorm Wind in DORCHESTER, SOUTH CAROLINA
From 05-APR-22 18:25:00 to 05-APR-22 18:26:00 (EST-5)
Location: HARLEYVILLE
Magnitude: 50.00 EG
Reported by: Amateur Radio

A spotter reported debris on Interstate 26 and in the air.

Thunderstorm Wind in CHARLESTON, SOUTH CAROLINA
From 05-APR-22 18:39:00 to 05-APR-22 18:40:00 (EST-5)
Location: MEGGETT
Magnitude: 50.00 EG
Reported by: Fire Department/Rescue

A fire department reported a large tree blocking State Route 165 near the intersection with Long Island Road.

Thunderstorm Wind in CHARLESTON, SOUTH CAROLINA
From 05-APR-22 19:00:00 to 05-APR-22 19:00:00 (EST-5)
Location: PHILIP
Magnitude: 50.00 EG
Reported by: Fire Department/Rescue

The Awendaw-McClellanville Fire Department reported trees down on the 1200 Block of Hamlin Road.

Thunderstorm Wind in CHARLESTON, SOUTH CAROLINA
From 05-APR-22 18:48:00 to 05-APR-22 18:49:00 (EST-5)
Location: MORRIS ACRES
Magnitude: 50.00 EG
Reported by: Social Media

Trees were reported down on Brownswood Road.

Thunderstorm Wind in DORCHESTER, SOUTH CAROLINA
From 05-APR-22 18:25:00 to 05-APR-22 18:26:00 (EST-5)
Location: GROVER
Magnitude: 50.00 EG
Reported by: Law Enforcement

The South Carolina Highway Patrol reported a tree down on Interstate 95 near mile marker 73 north bound.

Thunderstorm Wind in BERKELEY, SOUTH CAROLINA
From 05-APR-22 19:03:00 to 05-APR-22 19:04:00 (EST-5)
Location: WANDO
Magnitude: 50.00 EG
Reported by: Fire Department/Rescue

The Awendaw-McClellanville Fire Department reported a tree down on Halfway Creek Road.

Thunderstorm Wind in BEAUFORT, SOUTH CAROLINA
From 05-APR-22 18:16:00 to 05-APR-22 18:17:00 (EST-5)
Location: SHELL PT
Magnitude: 45.00 EG
Property damage: 1.25K
Reported by: 911 Call Center

The Beaufort County Warning Point reported power lines down near the intersection of Pleasant Farm Drive and Saluda Way.

Thunderstorm Wind in BEAUFORT, SOUTH CAROLINA
From 05-APR-22 18:19:00 to 05-APR-22 18:20:00 (EST-5)
Location: (NBC)MCAS BEAUFORT
Magnitude: 50.00 EG
Reported by: 911 Call Center

The Beaufort County Warning Point reported a tree down near the intersection of Darby Drive and Sycamore Street and another tree and power lines down at the 1800 Block of Morris Street.

Thunderstorm Wind in CHARLESTON, SOUTH CAROLINA
From 05-APR-22 18:46:00 to 05-APR-22 18:47:00 (EST-5)
Location: MORRIS ACRES
Magnitude: 50.00 EG
Reported by: Social Media

A report received via social media indicated a one foot diameter limb down along Chisholm Road on Johns Island.

Thunderstorm Wind in CHARLESTON, SOUTH CAROLINA
From 05-APR-22 18:52:00 to 05-APR-22 18:53:00 (EST-5)
Location: CROGHAN
Magnitude: 50.00 EG
Reported by: Social Media

A large water oak tree snapped off in Riverland Terrace.

Thunderstorm Wind in DORCHESTER, SOUTH CAROLINA
From 05-APR-22 18:09:00 to 05-APR-22 18:10:00 (EST-5)
Location: REEVESVILLE
Magnitude: 60.00 EG
Reported by: 911 Call Center

The Dorchester County 911 Call Center reported several trees down on Highway 78 near Reevesville.

Thunderstorm Wind in CHARLESTON, SOUTH CAROLINA
From 05-APR-22 19:01:00 to 05-APR-22 19:02:00 (EST-5)
Location: SNOWDEN
Magnitude: 65.00 EG
Reported by: NWS Employee

A National Weather Service employee reported several trees and branches down along Hungryneck Boulevard near the Isle Of Palms Connector. The employee also reported part of a gas station awning collapsed.

Thunderstorm Wind in CHARLESTON, SOUTH CAROLINA
From 05-APR-22 18:56:00 to 05-APR-22 18:57:00 (EST-5)
Location: CHARLESTON
Magnitude: 55.00 EG
Reported by: Public

The public reported several aircraft on the USS Yorktown moved by high winds and three trees down at the Cold War Memorial.

Thunderstorm Wind in CHARLESTON, SOUTH CAROLINA
From 05-APR-22 18:56:00 to 05-APR-22 18:57:00 (EST-5)
Location: SCANLONVILLE
Magnitude: 50.00 EG
Reported by: Public

The public reported the west stand of the Charleston Battery Soccer Stadium at Patriots Point damaged by wind.

Thunderstorm Wind in CHARLESTON, SOUTH CAROLINA
From 05-APR-22 19:00:00 to 05-APR-22 19:00:00 (EST-5)
Location: SNOWDEN
Magnitude: 50.00 EG
Reported by: NWS Employee

A National Weather Service employee reported trees down along Tea Planters Lane near the intersection with Six Mile Road.

Thunderstorm Wind in CHARLESTON, SOUTH CAROLINA
From 05-APR-22 18:44:00 to 05-APR-22 18:45:00 (EST-5)
Location: MORRIS ACRES
Magnitude: 70.00 EG
Reported by: Public

The public reported numerous trees and limbs down along Chisholm Road, including damage to a back porch. Wind also damaged a dock.

Thunderstorm Wind in CHARLESTON, SOUTH CAROLINA
From 05-APR-22 18:30:00 to 05-APR-22 18:30:00 (EST-5)
Location: WILLTOWN BLUFF
Magnitude: 53.00 MG
Reported by: Mesonet

The Ace Basin RAWS recorded a wind gust of 61 miles per hour.

Thunderstorm Wind in DORCHESTER, SOUTH CAROLINA
From 05-APR-22 18:15:00 to 05-APR-22 18:15:00 (EST-5)
Location: BADHAM
Magnitude: 50.00 EG
Reported by: Law Enforcement

The South Carolina Highway Patrol reported a tree down and in the roadway near the intersection of Hudson Road and Windham Road.

Thunderstorm Wind in CHARLESTON, SOUTH CAROLINA
From 05-APR-22 18:59:00 to 05-APR-22 19:04:00 (EST-5)
Location: CHARLESTON
Magnitude: 58.00 MG
Reported by: Mesonet

The Shutes Folly Weatheflow sensor recorded a peak wind gust of 67 mph at 659 PM.

Tornado in DORCHESTER, SOUTH CAROLINA
From 05-APR-22 18:12:00 to 05-APR-22 18:19:00 (EST-5)
Location: BYRD
Tornado F-scale: EF0
Reported by: NWS Storm Survey

A National Weather Service Storm Survey Team confirmed an EF-0 tornado with an estimated maximum wind speed of 73 mph in Dorchester County, South Carolina.
The tornado touched down near the intersection of U.S. Route 78 and Horne Taylor Rd, then continued northeast across a mostly wooded area, producing sporadic tree damage. The tornado ended just northeast of East Main Street, in Harleyville, SC.

Tornado in HAMPTON, SOUTH CAROLINA
From 05-APR-22 17:20:00 to 05-APR-22 17:24:00 (EST-5)
Location: VARNVILLE
Tornado F-scale: EF0
Reported by: NWS Storm Survey

A National Weather Service Storm Survey Team confirmed an EF-0 tornado with an estimated maximum wind speed of 82 mph in Hampton County, South Carolina. The weak tornado initially touched down just west of Pepper Street, then tracked northeast across U.S. 278, snapping and uprooting trees and causing minor roof damage to one home near the intersection of Oak Street and Howard Street. The tornado then continued a northeast path across a mostly wooded area, where it snapped and uprooted trees, before ending in an open field just east of the intersection of Papas Road and Mill Pond Road, where it snapped and uprooted a few more trees, overturned utility trailers, and threw a small grain bin.

Tornado in ALLENDALE, SOUTH CAROLINA
From 05-APR-22 14:50:00 to 05-APR-22 15:10:00 (EST-5)
Location: ALLENDALE OSWALD ARP
Tornado F-scale: EF3
Reported by: NWS Storm Survey

A National Weather Service Storm Survey Team confirmed an EF-3 tornado with an estimated maximum wind speed of 137 mph in Allendale County, South Carolina. The tornado touched down just north of the intersection of Bluff Road and Best Loop Road at 250 PM, then tracked rapidly northeast across Fitts Road and St. Mark Road, where it completely destroyed a few mobile homes, and injured one person. The mobile home damage in this area was sufficient to justify a low-end EF-3 rating. The tornado then continued to the northeast across Burton Road and Allendale-Fairfax Highway, where it produced significant damage to a building and many trees. From here, the tornado continued a path across Confederate Highway and then across the northern end of Sycamore, ending on the northeast side of Sycamore near Williams Road at 310 PM. Most of the damage around the Sycamore area was to trees, as well as minor damage to some structures.

Tornado in ALLENDALE, SOUTH CAROLINA
From 05-APR-22 17:03:00 to 05-APR-22 17:05:00 (EST-5)
Location: ULMERS
Tornado F-scale: EF1
Reported by: NWS Storm Survey

A National Weather Service Storm Survey Team confirmed an EF-1 tornado with an estimated maximum wind speed of 109 mph in Allendale County, South Carolina. High resolution satellite data combined with survey information
indicated the tornado touched down just west of Wells Branch Road, near the Allendale/Barnwell County Line. In this area, the tornado was strongest, snapping and uprooting many trees. The tornado then weakened while continuing an east path across a remote area, before dissipating near the CSX Railroad line, still within Allendale County, South Carolina.

Thunderstorm Wind in CHARLESTON, SOUTH CAROLINA
From 05-APR-22 19:05:00 to 05-APR-22 19:05:00 (EST-5)
Location: MT PLEASANT
Magnitude: 53.00 MG
Reported by: Mesonet

The Weatherflow sensor at Fort Sumter Range Front Light measured a peak wind gust of 61 mph.

Thunderstorm Wind in CHARLESTON, SOUTH CAROLINA
From 05-APR-22 19:07:00 to 05-APR-22 19:07:00 (EST-5)
Location: ISLE OF PALMS
Magnitude: 51.00 MG
Reported by: Mesonet

The Weatherflow sensor at Isle of Palms Pier measured a peak wind gust of 59 mph.

Thunderstorm Wind in CHARLESTON, SOUTH CAROLINA
From 05-APR-22 18:44:00 to 05-APR-22 18:54:00 (EST-5)
Location: RANTOWLES
Magnitude: 83.00 EG
Reported by: NWS Storm Survey

A National Weather Service Storm Survey Team confirmed strong straight-line winds associated with a thunderstorm microburst producing an estimated maximum wind speed of 90 to 95 mph along Chisholm Road on Johns Island, South Carolina. Strong straight-line winds associated with a line of thunderstorms passed across the Wadmalaw River and New Cut area, entering western portions of Johns Island along the 5000 block of Chisholm Road, then continued east with a swath approximately 650 yards wide along a path approximately 800 yards long. During the event, approximately 50 full size pine trees were downed, 25 of them being uprooted, along with a few full size oak trees uprooted and several large limbs damaged. The greatest damage to trees occurred across a wooded area north of the intersection of Chisolm Road and Ravens Bluff Road on a 22 acre property where minor damage also occurred to an open shed structure near a home.