A low pressure system developed over Southeast Colorado and moved into Southeast Kansas Friday night.  Abundant moisture surged north into the Upper Mississippi Valley overrunning cold air at the surface.  Initially the precipitation fell as rain in Southeast Iowa, Northeast Missouri and West Central Illinois during the early to middle afternoon.  However, by late afternoon and evening, as the precipitation rapidly overspread the area from south to north, evaporational cooling changed any rain over to a wintery mixture of freezing rain, sleet and snow south of Highway 34, while north of Highway 34 the precipitation fell mainly as snow with some sleet and freezing rain near the Interstate 80 corridor. By Saturday morning the precipitation had changed over to snow as the surface low moved east toward the Ohio Valley allowing colder air to infiltrate the region on brisk north winds. Total snowfall accumulations by Saturday evening were generally in the range of 4 to 8 inches.  Higher amounts of around 10 inches were reported in some locations between Interstate 80 and Highway 34.  Winds of 20 to 30 mph produced considerable blowing and drifting snow, which greatly reduced visibilities in open areas.

Winter Storm in JOHNSON, IOWA
From 14-FEB-03 16:00:00 to 15-FEB-03 12:00:00 (CST)
Reported by: LAW ENFORCEMENT

Winter Storm in BENTON, IOWA
From 14-FEB-03 16:00:00 to 15-FEB-03 12:00:00 (CST)
Reported by: LAW ENFORCEMENT

Winter Storm in JACKSON, IOWA
From 14-FEB-03 16:00:00 to 15-FEB-03 12:00:00 (CST)
Reported by: LAW ENFORCEMENT

Winter Storm in DUBUQUE, IOWA
From 14-FEB-03 16:00:00 to 15-FEB-03 12:00:00 (CST)
Reported by: LAW ENFORCEMENT

Winter Storm in JONES, IOWA
From 14-FEB-03 16:00:00 to 15-FEB-03 12:00:00 (CST)
Reported by: LAW ENFORCEMENT

Winter Storm in BUCHANAN, IOWA
From 14-FEB-03 16:00:00 to 15-FEB-03 12:00:00 (CST)
Reported by: LAW ENFORCEMENT

Winter Storm in JEFFERSON, IOWA
From 14-FEB-03 16:00:00 to 15-FEB-03 12:00:00 (CST)
Reported by: LAW ENFORCEMENT

Winter Storm in DES MOINES, IOWA
From 14-FEB-03 16:00:00 to 15-FEB-03 12:00:00 (CST)
Reported by: LAW ENFORCEMENT

Winter Storm in CLINTON, IOWA
From 14-FEB-03 16:00:00 to 15-FEB-03 12:00:00 (CST)
Reported by: LAW ENFORCEMENT

Winter Storm in CEDAR, IOWA
From 14-FEB-03 16:00:00 to 15-FEB-03 12:00:00 (CST)
Reported by: LAW ENFORCEMENT

Winter Storm in DELAWARE, IOWA
From 14-FEB-03 16:00:00 to 15-FEB-03 12:00:00 (CST)
Reported by: LAW ENFORCEMENT

Winter Storm in HENRY, IOWA
From 14-FEB-03 16:00:00 to 15-FEB-03 12:00:00 (CST)
Reported by: LAW ENFORCEMENT

Winter Storm in IOWA, IOWA
From 14-FEB-03 16:00:00 to 15-FEB-03 12:00:00 (CST)
Reported by: LAW ENFORCEMENT

Winter Storm in LINN, IOWA
From 14-FEB-03 16:00:00 to 15-FEB-03 12:00:00 (CST)
Reported by: LAW ENFORCEMENT

Winter Storm in KEOKUK, IOWA
From 14-FEB-03 16:00:00 to 15-FEB-03 12:00:00 (CST)
Reported by: LAW ENFORCEMENT

Winter Storm in VAN BUREN, IOWA
From 14-FEB-03 16:00:00 to 15-FEB-03 12:00:00 (CST)
Reported by: LAW ENFORCEMENT

Winter Storm in MUSCATINE, IOWA
From 14-FEB-03 16:00:00 to 15-FEB-03 12:00:00 (CST)
Reported by: LAW ENFORCEMENT

Winter Storm in WASHINGTON, IOWA
From 14-FEB-03 16:00:00 to 15-FEB-03 12:00:00 (CST)
Reported by: LAW ENFORCEMENT

Winter Storm in LEE, IOWA
From 14-FEB-03 16:00:00 to 15-FEB-03 12:00:00 (CST)
Reported by: LAW ENFORCEMENT

Winter Storm in SCOTT, IOWA
From 14-FEB-03 16:00:00 to 15-FEB-03 12:00:00 (CST)
Reported by: LAW ENFORCEMENT

Winter Storm in LOUISA, IOWA
From 14-FEB-03 16:00:00 to 15-FEB-03 12:00:00 (CST)
Reported by: LAW ENFORCEMENT