Thunderstorms resulted in a lightning caused grass fire in Moody County, and produced nickel size hail in Lake County in southeast South Dakota during the evening of September 30th.
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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.
Thunderstorms resulted in a lightning caused grass fire in Moody County, and produced nickel size hail in Lake County in southeast South Dakota during the evening of September 30th.
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 Sep 30, 8:25 PM CST, 5 minutes earlier.
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</html>The Sioux Falls radar (KFSD), 66 km away, was scanning. The volume nearest the first event began at 02:32 UTC.
1 lightning, 1 hail. Local standard time, as filed.
Lightning started a grass fire which burned over two acres, before being contained by the Brookings Fire Department.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Dakota in 2009Every state in 2009This day in weather historyWarnings in South Dakota, September 2009
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 2026-09-30. Each event’s entry at NCEI: 196212, 195881.