A relatively broad upper, maturing upper level trough, moved across the upper Plains on the 16th and 17th, providing the opportunity for widespread winter weather. Further down the atmosphere, and 850mb low pressure center tracked across southwest and southern Iowa, predominantly in the Saturday night through Sunday evening time frame. At the surface, a rather diffuse surface low tracked across central Missouri and on through central and southern Illinois. Surface and low-level temperatures were of little issue with both well below freezing. Winds were of little to no issue as well with sustained wind values around 10 mph or less during much of the event.
All together, conditions, while not extreme, provided the opportunity for prolonged light to moderate snow across much of the southern half to two thirds of Iowa due to persistent warm air advection/wrap-around precipitation around the surface and mid-level low pressure centers. Resulting snowfall amounts generally ranged from around 4 to 10 inches, with heaviest bands between the Highway 30 and Highway 34 corridors.

Winter Storm in CASS, IOWA
From 16-FEB-19 20:00:00 to 17-FEB-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in WRIGHT, IOWA
From 16-FEB-19 23:00:00 to 17-FEB-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in BLACK HAWK, IOWA
From 16-FEB-19 23:00:00 to 17-FEB-19 15:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in GRUNDY, IOWA
From 16-FEB-19 23:00:00 to 17-FEB-19 15:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in HARDIN, IOWA
From 16-FEB-19 23:00:00 to 17-FEB-19 15:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in HAMILTON, IOWA
From 16-FEB-19 23:00:00 to 17-FEB-19 15:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in BUTLER, IOWA
From 16-FEB-19 23:00:00 to 17-FEB-19 15:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in AUDUBON, IOWA
From 16-FEB-19 22:00:00 to 17-FEB-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in FRANKLIN, IOWA
From 16-FEB-19 23:00:00 to 17-FEB-19 15:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in POLK, IOWA
From 16-FEB-19 22:00:00 to 17-FEB-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in DALLAS, IOWA
From 16-FEB-19 22:00:00 to 17-FEB-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in ADAIR, IOWA
From 16-FEB-19 20:00:00 to 17-FEB-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in STORY, IOWA
From 16-FEB-19 22:00:00 to 17-FEB-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in MARSHALL, IOWA
From 16-FEB-19 22:00:00 to 17-FEB-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in MADISON, IOWA
From 16-FEB-19 20:00:00 to 17-FEB-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in ADAMS, IOWA
From 16-FEB-19 20:00:00 to 17-FEB-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in JASPER, IOWA
From 16-FEB-19 22:00:00 to 17-FEB-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in WEBSTER, IOWA
From 16-FEB-19 22:00:00 to 17-FEB-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in UNION, IOWA
From 16-FEB-19 20:00:00 to 17-FEB-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in CLARKE, IOWA
From 16-FEB-19 20:00:00 to 17-FEB-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in BOONE, IOWA
From 16-FEB-19 22:00:00 to 17-FEB-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in CARROLL, IOWA
From 16-FEB-19 22:00:00 to 17-FEB-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in GREENE, IOWA
From 16-FEB-19 22:00:00 to 17-FEB-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in GUTHRIE, IOWA
From 16-FEB-19 22:00:00 to 17-FEB-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in WARREN, IOWA
From 16-FEB-19 22:00:00 to 17-FEB-19 18:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter