A very tight pressure gradient was in place across the Northern Plains, which resulted in strong northwest winds across the western South Dakota plains during the day. Northwest winds of 35 to 45 mph, with gusts to 67 mph, were recorded across much of northwest South Dakota.
Every event with a place to put it; 9 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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 UNR wrote it up.
A very tight pressure gradient was in place across the Northern Plains, which resulted in strong northwest winds across the western South Dakota plains during the day. Northwest winds of 35 to 45 mph, with gusts to 67 mph, were recorded across much of northwest South Dakota.
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 Rapid City, SD wrote its last area forecast discussion before the first event at Dec 14, 6:52 AM MST, 1 hour 8 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
9 high wind. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Dakota in 2005Every state in 2005This day in weather historyWarnings in South Dakota, December 2005
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: 5483998, 5483991, 5483992, 5483993, 5483994, 5483995, 5483997, 5483990, 5483996.