A strong upper level jet pushing across the Rockies resulted in development of low pressure across southeast Colorado late on April 2, which intensified rapidly moving across Kansas and into Illinois on April 3. A broad swath of snow and gusty winds developed north of the low track across the area, with heaviest snowfall amounts in excess of 6 inches generally corresponding to highest terrain areas in south central and southeast South Dakota, northern portions of northwest Iowa and areas of southwest Minnesota. As unseasonably cold high pressure spread in behind the system on the morning of April 4, a few low temperature records were broken by as much as 5 to 15 degrees.

Winter Weather in O'BRIEN, IOWA
From 02-APR-18 23:00:00 to 03-APR-18 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A period of snowfall developed in the early morning hours of April 3, continuing at times through the afternoon. Winds shifted northwest and increased substantially with gusts of 30 to 40 mph at times through the afternoon. Snowfall totaled 4.0 inches at Sheldon and 3.0 inches at Primghar and Sanborn.

Winter Weather in CLAY, IOWA
From 02-APR-18 22:00:00 to 03-APR-18 21:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A period of snowfall developed in the early morning hours of April 3, continuing at times through the afternoon. Winds shifted northwest and increased substantially with gusts of 30 to 40 mph at times through the afternoon with visibility under one mile 1200-1700CST. Snowfall totaled 5.0 inches at Spencer and 2.0 inches 3 miles west northwest of Everly.

Winter Weather in PLYMOUTH, IOWA
From 03-APR-18 03:00:00 to 03-APR-18 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A period of snowfall developed in the early morning hours of April 3, continuing at times through the afternoon. Winds shifted northwest and increased substantially with gusts of 30 to 40 mph at times through the afternoon. Snowfall totaled 3.8 inches at Remsen and 3.7 inches at Le Mars.

Winter Weather in CHEROKEE, IOWA
From 03-APR-18 04:00:00 to 03-APR-18 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A period of snowfall developed in the early morning hours of April 3, continuing at times through the afternoon. Winds shifted northwest and increased substantially with gusts of 30 to 40 mph at times through the afternoon. Snowfall totaled 5.0 inches 4 miles north of Cleghorn and 2.5 inches at Cherokee.

Winter Weather in BUENA VISTA, IOWA
From 03-APR-18 05:00:00 to 03-APR-18 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A period of snowfall developed in the early morning hours of April 3, continuing at times through the afternoon. Winds shifted northwest and increased substantially with gusts of 30 to 40 mph at times through the afternoon. Snowfall totaled 3.0 inches at Storm Lake and 2.7 inches 4 miles east of Sioux Rapids.

Winter Weather in WOODBURY, IOWA
From 03-APR-18 04:00:00 to 03-APR-18 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A period of snowfall developed in the early morning hours of April 3, continuing at times through the afternoon. Winds shifted northwest and increased substantially with gusts of 30 to 40 mph at times through the afternoon with visibility of around a mile or less from 1100-1500CST. Snowfall totaled 1.0 inch at Sioux City and near Holly Springs.

Winter Weather in IDA, IOWA
From 03-APR-18 05:00:00 to 03-APR-18 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A period of snowfall developed in the early morning hours of April 3, continuing at times through the afternoon. Winds shifted northwest and increased substantially with gusts of 30 to 40 mph at times through the afternoon. Snowfall totaled 2.0 inches at Holstein and 1.0 inch 3 miles northeast of Battle Creek.