*Source - Storm Data Publication published by the National Climatic Data Center and severe weather reports issued by the National Weather Service.
| Date | County | Description | Length (miles) | Width (yards) | |
|---|---|---|---|---|---|
| 1 | February 19, 1999 | Woodford | (F0) Sheriff reported tornado touchdown southwest of Woodford. Damage survey confirmed a tornado touched down three miles west-southwest of Woodford near a church and then went into the woods. | 1 | 20 |
| 2 | April 1, 1999 | Florence | (F0) Six people witnessed a small funnel cloud decending near Effingham, moving a double-wide manufactured home off its foundation and damaging a tobacco barn at the corner of Hyman Rd and Friendfield Rd. Property damge: $6000. | <1 | 15 |
| 3 | April 8, 1999 | Barnwell | (F0) Spotter and damage survey confirmed an F0 tornado took down trees and powerlines 11 miles southeast of Barnwell. | 1 | 50 |
| 4 | April 8, 1999 | Allendale | (F1)A tornado touched down two miles west of Allendale. Roof damage to several buildings, numerous trees and powerlines down. Property damage: $25,000 | 9 | 50 |
| 5 | April 15, 1999 | Colleton | (F1) Tornado touch down one mile west of Ritter. Roof damage occurred to a house and several outdoor buildings, along with several trees uprooted or snapped off 15 to 20 feet above the ground.Property damge: $10,000. | 2 | 80 |
| 6 | April 15, 1999 | Barnwell | (F1) KC4JMV and damage survey confirmed an F1 tornado took down numerous trees and powerlines along a 2 mile path starting seven miles south-southwest of Williston. Minor damage was also done to a home. Property damage:$3000. | 2 | 100 |
| 7 | April 15, 1999 | Barnwell | (F0) An F0 touched down on the east side of Hilda and damaged a small farm. One shed was destroyed, some equipment, and a few trees were down. Property damage: $3000. | <1 | 75 |
| 8 | April 15, 1999 | Bamberg | (F0) Damage survey confirmed an F0 tornado took down some trees and powerlines near Midway. | <1 | 35 |
| 9 | April 15, 1999 | Allendale | (F2) An F2 tornado touched down one mile northwest of Ulmers and destroyed 20 acres of watermelons and rolled a large tractor over several times. Numerous trees and powerlines were down along the track.Property damage: $2000. Crop damage: $20,000. | 3 | 150 |
| 10 | April 24, 1999 | Newberry | (F0) Storm survey confirmed an F0 touched down one mile east of Chappells and took some trees down. | 1 | 50 |
| 11 | April 24, 1999 | Saluda | (F0) An F0 tornado initially touched down 13 miles north-northwest of Saluda and intermittently touched down in wooded areas and fields, narrowly missing some homes. Damage was limited to trees down. | 9 | 100 |
| 12 | April 28, 1999 | Berkeley | (F1) A tornado touched down one mile south of Huger. One home had a large portion of the center of the roof removed, much of the stucco brick peeled off the north wall, and several windows blown out. Another house had minor damage with the tin roof damaged and the back door blown out. Also, there were several large trees uprooted or twisted off along the three mile path. Property damage: $50,000. | 3 | 100 |
| 13 | May 6, 1999 | Darlington | (F1) A tornado touched down at Darlington County Airport @ 1540EST with wind gusts near 110 mph that damaged an aircraft hangar. Property damage: $80,000. | <1 | 20 |
| 14 | May 6, 1999 | Florence | (F1) Tornado touched down in New Hope @ 1545 EST and did damage to a roof on a house and to a mobile home. Property damage: $60,000. | <1 | 20 |
| 15 | May 6, 1999 | Horry | (F1) A tornado touched down one mile south of Aynor and toppled a tree onto a house Property damage $25,000. | 1 | 20 |
| 16 | June 15, 1999 | Edgefield | (F0) Initial tornado touchdown was seven miles south-southeast of Colliers. The tornado took some tops out of trees and took down a fence at a horse farm. | 1 | 30 |
| 17 | September 29, 1999 | Darlington | (F1) A tornado touched down at Clyde, just west of the HB Robinson nuclear power plant, and tracked across the Pine Ridge area. The storm continued east-northeast, north of Hartsville across mostly rural areas, to near the Darlington County Jetport ending two miles north of Dovesville. 11 mobile homes were destroyed and 15 more were damaged. One house had major damage. Six businesses were listed as destroyed. Six people received minor injuries. Property damage $240,000. | 15 | 20 |
| 18 | October 4, 1999 | Oconee | (F0) A F0 Tornado was spotted in Tokeena Xrds @ 845 EST. Minimal damage occurred. Numerous 3 to 4 inch branches were torn off trees. A nearby store owner heard a roaring sound pass overhead, which in combination with radar imagery, leads the National Weather Service to log this event as a small, weak tornado. | <1 | 25 |
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