Low pressure was working its way off the Rockies and eastward along the Nebraska/Kansas border through the day Friday (20th).  Ahead of the surface low pressure, the state primarily remained in easterly to southeasterly flow, but was able to boost dewpoints up into the upper 20s and low 30s.  Mid-morning Friday the low pressure center remained in south-central Nebraska, but snowfall was beginning in northwest Iowa in conjunction with a theta-e push.  Through the day the low pressure center moved eastward near the Nebraska-Kansas border before taking a southeast turn in the late afternoon and across northeast Kansas.  All the while, snowfall spread eastward across the northern half of Iowa.  Heaviest snowfall  generally fell between 18z Friday and 06z Saturday.   By late morning Saturday snowfall had exited the state.
In the end, a swath of snowfall of 6-12 inches ran across the northern third to half of the state.  Greatest amounts resided in northwest Iowa, but within our CWA greatest amounts were 13 inches.

Winter Storm in POLK, IOWA
From 20-NOV-15 14:00:00 to 21-NOV-15 06:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in STORY, IOWA
From 20-NOV-15 14:00:00 to 21-NOV-15 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in WORTH, IOWA
From 20-NOV-15 14:00:00 to 21-NOV-15 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in CERRO GORDO, IOWA
From 20-NOV-15 14:00:00 to 21-NOV-15 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in FRANKLIN, IOWA
From 20-NOV-15 14:00:00 to 21-NOV-15 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in HARDIN, IOWA
From 20-NOV-15 14:00:00 to 21-NOV-15 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in BUTLER, IOWA
From 20-NOV-15 14:00:00 to 21-NOV-15 06:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in GRUNDY, IOWA
From 20-NOV-15 14:00:00 to 21-NOV-15 06:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in MARSHALL, IOWA
From 20-NOV-15 14:00:00 to 21-NOV-15 06:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in JASPER, IOWA
From 20-NOV-15 14:00:00 to 21-NOV-15 06:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in BREMER, IOWA
From 20-NOV-15 14:00:00 to 21-NOV-15 06:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in BLACK HAWK, IOWA
From 20-NOV-15 14:00:00 to 21-NOV-15 06:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in TAMA, IOWA
From 20-NOV-15 14:00:00 to 21-NOV-15 06:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in WINNEBAGO, IOWA
From 20-NOV-15 11:00:00 to 21-NOV-15 00:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in MADISON, IOWA
From 20-NOV-15 14:00:00 to 21-NOV-15 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in WARREN, IOWA
From 20-NOV-15 14:00:00 to 21-NOV-15 06:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in EMMET, IOWA
From 20-NOV-15 10:00:00 to 20-NOV-15 22:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in PALO ALTO, IOWA
From 20-NOV-15 10:00:00 to 20-NOV-15 22:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in POWESHIEK, IOWA
From 20-NOV-15 14:00:00 to 21-NOV-15 06:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in POCAHONTAS, IOWA
From 20-NOV-15 10:00:00 to 20-NOV-15 22:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in SAC, IOWA
From 20-NOV-15 10:00:00 to 20-NOV-15 22:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in CALHOUN, IOWA
From 20-NOV-15 10:00:00 to 21-NOV-15 00:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in KOSSUTH, IOWA
From 20-NOV-15 10:00:00 to 21-NOV-15 00:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in HUMBOLDT, IOWA
From 20-NOV-15 10:00:00 to 21-NOV-15 00:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in WEBSTER, IOWA
From 20-NOV-15 10:00:00 to 21-NOV-15 00:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in HANCOCK, IOWA
From 20-NOV-15 11:00:00 to 21-NOV-15 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in WRIGHT, IOWA
From 20-NOV-15 11:00:00 to 21-NOV-15 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in HAMILTON, IOWA
From 20-NOV-15 14:00:00 to 21-NOV-15 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in GREENE, IOWA
From 20-NOV-15 11:00:00 to 21-NOV-15 00:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in BOONE, IOWA
From 20-NOV-15 14:00:00 to 21-NOV-15 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in DALLAS, IOWA
From 20-NOV-15 14:00:00 to 21-NOV-15 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer