999 first-hand accounts of flood events in South Dakota, ranked by impact. Each is a NOAA-written narrative of the moment.
After a snow storm on May 9-10 left a liquid equivalent of one to three inches of precipitation over southwestern South Dakota and northwestern Nebraska, additional rain combined with the melting snow to cause flooding in the White River, Cheyenne River, and Bad River basins.
Read the full account →Several supercell thunderstorms rolled southeast from northwest South Dakota into central South Dakota bringing large hail, damaging winds, and flash flooding during the late afternoon and evening hours.
Read the full account →March flooding of the James River continued from Columbia to Ashton throughout April. The James River went above flood stage at Redfield on April 18th and continued through the end of the month.
Read the full account →A strong inflow of moist and unstable air into and over a surface warm front resulted in training thunderstorms and very heavy rain across parts of northeast South Dakota. Rainfall amounts of 2 to 6 inches occurred across much of the area resulting in widespread flash flooding.
Read the full account →Very heavy rains of 3 to 7 inches caused extensive flooding throughout Dewey County. Many roads, bridges, dams, culverts, along with some buildings were damaged or destroyed by the flooding. One man, west of Promise, used a boat to get back and forth from his ranch.
Read the full account →Heavy rain falling on snow remaining from the October 3-5 blizzard caused flooding over portions of western South Dakota. One to three inches of rain fell on October 10 and 11.
Read the full account →Flooding of the Vermillion River was caused by snowmelt, heavy rain, and ice jams. The ice jams significantly aggravated the flooding in Davis, where several houses were damaged and parkland was flooded. Residents of at least six homes in Davis were evacuated.
Read the full account →Five inches of rain fell in a one and a half hour period during the evening over Beaver Creek, just west of Buffalo Gap. The creek flooded Custer County highway 101 in several places and eroded the road near a large culvert, making it impassible to traffic.
Read the full account →A strong warm front along with very unstable air and strong deep layer winds brought several supercell thunderstorns along with a damaging line of thunderstorms/bow echo to parts of central and northeast South Dakota during the afternoon hours.
Read the full account →March flooding of the James River continued from Columbia to Ashton throughout April. The James River went above flood stage at Redfield on April 18th and continued through the end of the month.
Read the full account →A very moist and unstable atmosphere was present in the wake of earlier day convection, as another stronger mid-level wave and associated frontal boundary pushed through southeast South Dakota and southwest Minnesota during the evening and early overnight hours.
Read the full account →A very moist and unstable atmosphere was present in the wake of earlier day convection, as another stronger mid-level wave and associated frontal boundary pushed through southeast South Dakota and southwest Minnesota during the evening and early overnight hours.
Read the full account →A very moist and unstable atmosphere was present in the wake of earlier day convection, as another stronger mid-level wave and associated frontal boundary pushed through southeast South Dakota and southwest Minnesota during the evening and early overnight hours.
Read the full account →A very moist and unstable atmosphere was present in the wake of earlier day convection, as another stronger mid-level wave and associated frontal boundary pushed through southeast South Dakota and southwest Minnesota during the evening and early overnight hours.
Read the full account →A very moist and unstable atmosphere was present in the wake of earlier day convection, as another stronger mid-level wave and associated frontal boundary pushed through southeast South Dakota and southwest Minnesota during the evening and early overnight hours.
Read the full account →A very moist and unstable atmosphere was present in the wake of earlier day convection, as another stronger mid-level wave and associated frontal boundary pushed through southeast South Dakota and southwest Minnesota during the evening and early overnight hours.
Read the full account →Thunderstorms with heavy rainfall produced flooding across a broad swath of Lyman, Buffalo and Hand counties. In Lyman county, 7.46 inches was observed at a weather station 6 miles south southwest of Oacoma, while the South Dakota State University mesonet station near Oacoma…
Read the full account →Low pressure crossing from west to east across the state provided the support for numerous, widespread severe thunderstorms. The main threat from these storms was large hail, with several reports of hail at or greater than golfball size.
Read the full account →Low pressure crossing from west to east across the state provided the support for numerous, widespread severe thunderstorms. The main threat from these storms was large hail, with several reports of hail at or greater than golfball size.
Read the full account →Low pressure crossing from west to east across the state provided the support for numerous, widespread severe thunderstorms. The main threat from these storms was large hail, with several reports of hail at or greater than golfball size.
Read the full account →Clusters of thunderstorms with very high rainfall rates from 2 to 4 inches per hour developed by midday on June 20, and despite being transient, continued to redevelop through the evening and into the overnight hours.
Read the full account →Clusters of thunderstorms with very high rainfall rates from 2 to 4 inches per hour developed by midday on June 20, and despite being transient, continued to redevelop through the evening and into the overnight hours.
Read the full account →Clusters of thunderstorms with very high rainfall rates from 2 to 4 inches per hour developed by midday on June 20, and despite being transient, continued to redevelop through the evening and into the overnight hours.
Read the full account →Clusters of thunderstorms with very high rainfall rates from 2 to 4 inches per hour developed by midday on June 20, and despite being transient, continued to redevelop through the evening and into the overnight hours.
Read the full account →