Low pressure formed over the Texas Panhandle during the afternoon of the 12th.  This was one of the few systems that formed in the southern stream during this winter season.  The low drew moisture north from the Gulf of Mexico overnight with dew points in the 40s and 50s feeding the system.  A large cloud shield formed with Iowa located in the deformation zone of the storm.  Snow broke out over the state during the late evening hours and picked up overnight.  A strong feed of Arctic air fed into the system from the north.  The drier air from the north, combined with strong convection to the south, resulted in a limitation of snowfall amounts.  As the low moved east overnight it intensified over Arkansas, then continued moving northeast into eastern Kentucky by the afternoon of the 13th.  The pressure gradient increased over the state with northeast to north winds of 20 to 25 mph, gusting to 35 mph, common over the state by the early morning hours of the 13th.  The snow was quite dry and accumulated to 3 to 6 inches across much of the southeast half of the state.  Heaviest snow was along the Missouri border with Centerville and Corydon both reporting about 6 inches of accumulation.  The gusty winds produced considerable drifting of the snow and areas of blowing snow developed.  Travel was not recommended over areas south of Interstate 80 and east of Interstate 35 by daybreak on the 13th.  Car wrecks were numerous with some roads drifting shut.  The combination of the fluffy snow, gusty winds, and temperatures falling into the teens resulted in a very hazardous situation.

Winter Storm in MARION, IOWA
From 12-FEB-07 22:30:00 to 13-FEB-07 17:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in CLARKE, IOWA
From 12-FEB-07 22:30:00 to 13-FEB-07 17:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in LUCAS, IOWA
From 12-FEB-07 22:30:00 to 13-FEB-07 17:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in RINGGOLD, IOWA
From 12-FEB-07 22:30:00 to 13-FEB-07 17:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in POWESHIEK, IOWA
From 12-FEB-07 22:30:00 to 13-FEB-07 17:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in MADISON, IOWA
From 12-FEB-07 22:30:00 to 13-FEB-07 17:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in DECATUR, IOWA
From 12-FEB-07 22:30:00 to 13-FEB-07 17:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in DAVIS, IOWA
From 12-FEB-07 22:30:00 to 13-FEB-07 17:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in MAHASKA, IOWA
From 12-FEB-07 22:30:00 to 13-FEB-07 17:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in UNION, IOWA
From 12-FEB-07 22:30:00 to 13-FEB-07 17:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in MONROE, IOWA
From 12-FEB-07 22:30:00 to 13-FEB-07 17:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in POLK, IOWA
From 12-FEB-07 22:30:00 to 13-FEB-07 17:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in JASPER, IOWA
From 12-FEB-07 22:30:00 to 13-FEB-07 17:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in WAPELLO, IOWA
From 12-FEB-07 22:30:00 to 13-FEB-07 17:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in WAYNE, IOWA
From 12-FEB-07 22:30:00 to 13-FEB-07 17:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in WARREN, IOWA
From 12-FEB-07 22:30:00 to 13-FEB-07 17:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in APPANOOSE, IOWA
From 12-FEB-07 22:30:00 to 13-FEB-07 17:30:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter