A low pressure system moved off the Rockies Monday night into Tuesday and proceeded east and then northeast towards Iowa.  It traversed the southeastern portions of the state on Tuesday evening and into early Wednesday.  roughly the northwestern half of the state was put under either a blizzard warning (northwest third) or a winter storm warning (central third) effective at Midnight Tuesday through 6am Wednesday.
Snow and rain entered western reaches of the state by 6am Tuesday and continued to spread eastward across the state through the day.  In addition to the rain and snow, strong winds were accompanied with the system and resulted in widespread sustained winds in excess of 35 mph and wind gusts in excess of 50 mph in number of locations across northwest Iowa and into portions of central Iowa.  Snowfall amounts quickly increased north and northwest of a line from Des Moines to Waterloo, with numerous reports in excess of 8 inches and peak amounts around a foot.

Blizzard in CARROLL, IOWA
From 02-FEB-16 07:00:00 to 03-FEB-16 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Blizzard in CRAWFORD, IOWA
From 02-FEB-16 07:00:00 to 03-FEB-16 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Blizzard in HAMILTON, IOWA
From 02-FEB-16 08:00:00 to 03-FEB-16 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Blizzard in WEBSTER, IOWA
From 02-FEB-16 08:00:00 to 03-FEB-16 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Blizzard in CALHOUN, IOWA
From 02-FEB-16 08:00:00 to 03-FEB-16 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Blizzard in SAC, IOWA
From 02-FEB-16 08:00:00 to 03-FEB-16 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Blizzard in FRANKLIN, IOWA
From 02-FEB-16 08:00:00 to 03-FEB-16 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Blizzard in WRIGHT, IOWA
From 02-FEB-16 08:00:00 to 03-FEB-16 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Blizzard in HUMBOLDT, IOWA
From 02-FEB-16 08:00:00 to 03-FEB-16 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Blizzard in POCAHONTAS, IOWA
From 02-FEB-16 08:00:00 to 03-FEB-16 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Blizzard in CERRO GORDO, IOWA
From 02-FEB-16 09:00:00 to 03-FEB-16 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Blizzard in HANCOCK, IOWA
From 02-FEB-16 09:00:00 to 03-FEB-16 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Blizzard in WORTH, IOWA
From 02-FEB-16 09:00:00 to 03-FEB-16 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Blizzard in WINNEBAGO, IOWA
From 02-FEB-16 09:00:00 to 03-FEB-16 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Blizzard in KOSSUTH, IOWA
From 02-FEB-16 09:00:00 to 03-FEB-16 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Blizzard in PALO ALTO, IOWA
From 02-FEB-16 09:00:00 to 03-FEB-16 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Blizzard in EMMET, IOWA
From 02-FEB-16 09:00:00 to 03-FEB-16 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Winter Storm in MADISON, IOWA
From 02-FEB-16 02:00:00 to 02-FEB-16 15:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in ADAIR, IOWA
From 02-FEB-16 02:00:00 to 02-FEB-16 15:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in CASS, IOWA
From 02-FEB-16 02:00:00 to 02-FEB-16 15:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in TAMA, IOWA
From 02-FEB-16 03:00:00 to 02-FEB-16 15:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in MARSHALL, IOWA
From 02-FEB-16 03:00:00 to 02-FEB-16 15:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in BUTLER, IOWA
From 02-FEB-16 04:00:00 to 03-FEB-16 04:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in GUTHRIE, IOWA
From 02-FEB-16 02:00:00 to 03-FEB-16 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in AUDUBON, IOWA
From 02-FEB-16 02:00:00 to 03-FEB-16 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in STORY, IOWA
From 02-FEB-16 03:00:00 to 03-FEB-16 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in BOONE, IOWA
From 02-FEB-16 03:00:00 to 03-FEB-16 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in DALLAS, IOWA
From 02-FEB-16 03:00:00 to 03-FEB-16 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in BREMER, IOWA
From 02-FEB-16 04:00:00 to 03-FEB-16 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in BLACK HAWK, IOWA
From 02-FEB-16 04:00:00 to 03-FEB-16 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in GRUNDY, IOWA
From 02-FEB-16 04:00:00 to 03-FEB-16 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in HARDIN, IOWA
From 02-FEB-16 04:00:00 to 03-FEB-16 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Blizzard in GREENE, IOWA
From 02-FEB-16 07:00:00 to 03-FEB-16 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS