Heavy rainfall at the end of March brought a brief period of minor flooding to parts of the Vermillion River Basin.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS FSD wrote it up.
Heavy rainfall at the end of March brought a brief period of minor flooding to parts of the Vermillion River Basin.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Sioux Falls, SD wrote its last area forecast discussion before the first event at Mar 31, 5:26 PM CST, 8 hours 34 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
2 flood. Local standard time, as filed.
The Vermillion River near Wakonda (gage site WKAS2) crested 0.3 feet above flood stage on April 1. Main impacts were limited to flooding of agricultural land near the river.
The Vermillion River near Wakonda (gage site WKAS2) crested 0.3 feet above flood stage on April 1. Main impacts were limited to flooding of agricultural land near the river.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Dakota in 2020Every state in 2020This day in weather historyWarnings in South Dakota, April 2020
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 882907, 882908.