The strongest outbreak of cold air this season so far swept into the state during the evening of the 6th and held its grip into the early morning hours of the 7th.  A strong Arctic cold front moved through the state in the wake of the fresh snowfall that occurred on the 5th.  Temperatures fell to between zero and 10 below zero F over a large part of the state.  The winds were a major factor with northwest winds sustained between 20 and 30 MPH with gusts in the 40 to 45 MPH range.  The combination of winds and sub-zero temperatures produced wind chill values of 30 to near 40 below zero from the early morning hours of the 6th into the early morning hours of the 7th.  Winds became west and diminished during the evening of the 6th, though temperatures fell to around -10 by that time.  It wasn't until after midnight that winds diminished to the point that wind chill values were in the -20's.

Extreme Cold/Wind Chill in WORTH, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in CERRO GORDO, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in HUMBOLDT, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in WRIGHT, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in PALO ALTO, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in KOSSUTH, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in HANCOCK, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in WINNEBAGO, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in POCAHONTAS, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in HARDIN, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in GRUNDY, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in BLACK HAWK, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in POLK, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in JASPER, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in POWESHIEK, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in FRANKLIN, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in BUTLER, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in CRAWFORD, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in CARROLL, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in STORY, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in MARSHALL, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in EMMET, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in GREENE, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in SAC, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in BREMER, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in CALHOUN, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in WEBSTER, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in HAMILTON, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in BOONE, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in TAMA, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in DALLAS, IOWA
From 06-JAN-15 03:00:00 to 07-JAN-15 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet