Alert archive / Iowa / Winter Storm Warnings in 2025

Winter Storm Warning 4, NWS Sioux Falls, SD

December 6, 20254 counties in South Dakota; 8 counties in Iowa; Jackson County, Nobles County, Rock County, Minnesota

NWS Sioux Falls, SD issued this winter storm warning at Dec 6, 2025, 3:08 AM CST for 4 counties in South Dakota; 8 counties in Iowa; Jackson County, Nobles County, Rock County, Minnesota. It took effect at Dec 6, 2025, 9:00 AM CST. It was in force for 15 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Dec 6, 2025, 3:08 AM CST (09:08 UTC)
In effect from: Dec 6, 2025, 9:00 AM CST
Expired: Dec 7, 2025, 12:00 AM CST
In force: 15 hr
Issued by: NWS Sioux Falls, SD

Counties Buena Vista County, IA, Cherokee County, IA, Clay County, IA, Dickinson County, IA, Lyon County, IA, O'Brien County, IA, Osceola County, IA, Sioux County, IA, Jackson County, MN, Nobles County, MN, Rock County, MN, Lincoln County, SD, McCook County, SD, Minnehaha County, SD, Turner County, SD

The radar

The Sioux Falls radar (KFSD), 66 km from the middle of the area, began a volume at 09:08 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What forecasters said that day

The local office's own words before this winter storm warning went out, 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 this winter storm warning went out at Dec 6, 3:04 AM CST, 4 minutes earlier.

Area forecast discussion, Dec 6, 3:04 AM CST, 4 minutes before

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Hazardous weather outlook, Dec 5, 9:05 PM CST, 6 hours 3 minutes before

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Nearby

Winter Storm Warnings in Iowa, 2025 Winter Storm Warnings in South Dakota, 2025 Winter Storm Warnings in Minnesota, 2025 Every winter storm warning in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.