A low pressure system moved from the Colorado Rockies during the evening of March 6 and across the Central Plains through mid-day on March 7. A band of precipitation developed along strong mid-level frontogenesis to the north of the low track.
Every event with a place to put it; 6 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 FSD wrote it up.
A low pressure system moved from the Colorado Rockies during the evening of March 6 and across the Central Plains through mid-day on March 7. A band of precipitation developed along strong mid-level frontogenesis to the north of the low track. With temperatures initially above freezing, precipitation fell as rain, but quickly transitioned to snow and accumulated a broad swath of 2 to 4 inches mainly along and south of Interstate 90. Higher totals from 5 to 7 inches fell across south-central South Dakota. Winds were relatively light and the wet snow minimized overall reductions in visibility.
The national radar mosaic for the moment the first event began.
6 winter weather. Local standard time, as filed.
Snowfall totaled 3.9 inches at Inwood, 3.5 inches 1.2 miles north-northeast of Larchwood, and 3.3 inches at Rock Rapids.
Snowfall totaled 3.3 inches at Hull, 3.0 inches 2.6 miles north of Sioux Center, and 2.0 inches at Rock Valley.
Snowfall totaled 3.9 inches at Sanborn and 2.0 inches at Sheldon.
Snowfall totaled 2.0 inches at Spencer.
Snowfall totaled 3.0 inches at Ocheyedan and 2.6 inches at Sibley.
Snowfall totaled 2.0 inches 0.2 miles north of Lake Park.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Iowa in 2025Every state in 2025This day in weather historyWarnings in Iowa, March 2025
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: 1246416, 1246420, 1246422, 1246427, 1246417, 1246430.