 ;templatestyles src="Template:Infobox weather event/styles.css"/ ;
On Monday, April 8, 1957, a widespread tornado outbreak struck the Southeastern United States, particularly the Carolinas, and was responsible for seven deaths and 203 injuries across the region. Most of the activity occurred on either side of the Piedmont, including portions of the Cumberland Plateau. At least 18 tornadoes occurred, including several long-tracked tornado families, one of which included a violent tornado that was retroactively rated F4 on the Fujita scale; activity lasted 21 ;templatestyles src="Fraction/styles.css" / ;1⁄12 hours. Besides tornadoes, the outbreak also generated other severe weather phenomena such as large hail.
Confirmed tornadoes.
Prior to 1990, there is a likely undercount of tornadoes, particularly E/F0–1, with reports of weaker tornadoes becoming more common as population increased. A sharp increase in the annual average E/F0–1 count by approximately 200 tornadoes was noted upon the implementation of NEXRAD Doppler weather radar in 1990–1991. 1974 marked the first year where significant tornado (E/F2+) counts became homogenous with contemporary values, attributed to the consistent implementation of Fujita scale assessments. Numerous discrepancies on the details of tornadoes in this outbreak exist between sources. The total count of tornadoes and ratings differs from various agencies accordingly. The list below documents information from the most contemporary official sources alongside assessments from tornado historian Thomas P. Grazulis.
Flat Creek–Jefferson–Cheraw–Wallace–McColl, South Carolina/Johns–Maxton–Roseboro–Parkersburg, North Carolina.
 ;templatestyles src="Template:Infobox weather event/styles.css"/ ;
This long-lived tornado family comprised at least two separate tornadoes, both of which may have been tornado families themselves. The first member of the tornado family touched down near Flat Creek and moved into the town of Jefferson, where it destroyed or damaged 141 homes, along with 156 other structures. It also tore apart 23 of 25 buildings on Main Street. As it left Jefferson, the tornado generated a swath of near-continuous damage, indicative of F2 and F3 intensity, that extended from Jefferson to near Cheraw and Wallace. The tornado destroyed or damaged 25 homes in Wallace. Parts of a cotton gin were found distant. 16 injuries occurred in South Carolina, all in Chesterfield County, and losses statewide totaled $750,000 (Grazulis listed damages as $1 million). The second member of the tornado family, described as a wide funnel, touched down near McColl and crossed into North Carolina near Johns and east of Maxton. In this area the tornado destroyed several barns, a gas station, and small homes, but was not of violent intensity. The tornado later tracked near St. Pauls en route to Roseboro. Its only confirmable F4 damage occurred in a pair of small communities between Roseboro and Parkersburg, where four people died and approximately 20 homes were destroyed. More than 387 homes, businesses, and other structures were damaged or destroyed along the path, including more than 100 in Sampson County alone. In all, 80 people were injured and losses totaled $1 ;templatestyles src="Fraction/styles.css" / ;3⁄4 million.
Other effects.
Severe thunderstorm winds gusted to at Bristol, Virginia. Additionally, hail was recorded in Anderson County, South Carolina.
Notes.
 ;templatestyles src="Reflist/styles.css" / ;
References.
 ;templatestyles src="Reflist/styles.css" / ;