999 first-hand accounts of flood events in South Dakota, ranked by impact. Each is a NOAA-written narrative of the moment.
A mesoscale convective complex moved out of central South Dakota and across northeast South Dakota late night, spurred by a strong low-level jet and elevated instability up to 3000 J/kg.
Read the full account →Snow melt water from a deep snow pack and ice jamming brought Oak Creek above flood stage at the end of March. Oak Creek near Wakpala rose to major flood stage to nearly 17 feet or about 7 feet above flood stage.
Read the full account →Continued high dam releases, along with another period of very heavy rainfall in the middle of the month, maintained river flooding along much of the Missouri River between Fort Randall and Gavins Point Dams.
Read the full account →Continued high dam releases, along with another period of very heavy rainfall in the middle of the month, maintained river flooding along much of the Missouri River between Fort Randall and Gavins Point Dams.
Read the full account →Continued high dam releases, along with another period of very heavy rainfall in the middle of the month, maintained river flooding along much of the Missouri River between Fort Randall and Gavins Point Dams.
Read the full account →Spurred by a period of excessive precipitation from September 10-12 that resulted in 5 to 10 inches of rainfall in the upper reaches of the Big Sioux River Basin and 2 to 5 inches from Sioux Falls southward, rises occurred mid-month that routed downstream to cause minor flooding…
Read the full account →Winds backing ahead of a strong upper level wave along with approach of a upper level jet streak increased late-day shear and supported development of an initially isolated severe thunderstorm across central South Dakota.
Read the full account →Winds backing ahead of a strong upper level wave along with approach of a upper level jet streak increased late-day shear and supported development of an initially isolated severe thunderstorm across central South Dakota.
Read the full account →Snow melt runoff caused the James River near Columbia to go above the flood stage of 13 feet on the 21st. The river reached a high point of 15.74 feet on February 24th. The river continued to flood into March.
Read the full account →Snow melt runoff caused the James River near Columbia to go above the flood stage of 13 feet on the 21st. The river reached a high point of 15.74 feet on February 24th. The river continued to flood into March.
Read the full account →Nocturnal thunderstorms developed in a narrow band between 0100 and 0500CST across Rock and eastern Minnehaha counties. The storms produced from 1 to 2 inches of rain in a two hour period, which fell on fully frozen ground.
Read the full account →Two rounds of severe weather developed across central South Dakota during the afternoon and late evening hours. The first round of thunderstorms developed during the early afternoon hours of June 19th and quickly produced hail up to two inches in diameter.
Read the full account →Two rounds of severe weather developed across central South Dakota during the afternoon and late evening hours. The first round of thunderstorms developed during the early afternoon hours of June 19th and quickly produced hail up to two inches in diameter.
Read the full account →Two rounds of severe weather developed across central South Dakota during the afternoon and late evening hours. The first round of thunderstorms developed during the early afternoon hours of June 19th and quickly produced hail up to two inches in diameter.
Read the full account →Two rounds of severe weather developed across central South Dakota during the afternoon and late evening hours. The first round of thunderstorms developed during the early afternoon hours of June 19th and quickly produced hail up to two inches in diameter.
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