Low pressure tracked northeast through the Tennessee Valley late Friday evening, January 20th, 2012. It combined with another low pressure system over the Great Lakes to produce precipitation across the Ohio Valley. Along and north of the I-70 corridor in Ohio, the precipitation was primarily snow. South of the I-70 corridor, snow mixed with sleet and freezing rain. closer to the Ohio River in south central Ohio, warmer air was pulled in and significantly cut the amount of freezing rain found there.

Winter Weather in DARKE, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 06:00:00 (EST-5)
Reported by: Public

A member of the public reported 3.5 inches of snow west of Greenville. The cooperative observer in Versailles and the highway department in Greenville measured 3 inches of snow. The rainfall observer northwest of Bradford measured 1.2 inches of snow.

Winter Weather in DELAWARE, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 06:00:00 (EST-5)
Reported by: Department of Highways

The county garage in Delaware measured 3 inches of snow.

Winter Weather in FRANKLIN, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 06:00:00 (EST-5)
Reported by: Department of Highways

The county garage 4 miles north of Gahanna measured 2 inches of snow. The rainfall observer and the Columbus airport both measured an inch. A spotter in Columbus reported .2 inches of snowfall.

Winter Weather in GREENE, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 06:00:00 (EST-5)
Reported by: Department of Highways

The county garage south of Xenia measured a half inch of snow. A public report of .3 inches came out of Fairborn.

Winter Weather in MADISON, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 06:00:00 (EST-5)
Reported by: Department of Highways

The county garage in London measured a half inch of snow.

Winter Weather in HARDIN, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 06:00:00 (EST-5)
Reported by: Department of Highways

The county garage in Kenton and a spotter in Kenton Vale measured 4 inches of snowfall.

Winter Weather in LICKING, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 06:00:00 (EST-5)
Reported by: COOP Observer

The cooperative observer 4 miles west-southwest of Utica measured 2.2 inches of snow. The county garage 5 miles south-southeast of Heath measured 2 inches of snow.

Winter Weather in LOGAN, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 06:00:00 (EST-5)
Reported by: COOP Observer

The cooperative observer in Bellefontaine measured 4 inches of snow. The county garage 2 miles north of Bellefontaine measured 3.3 inches of snow. A cooperative observer north of Huntsville measured 2 inches of snow.

Winter Weather in MERCER, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 06:00:00 (EST-5)
Reported by: Department of Highways

The county garage in Celina measured 3.5 inches of snow.

Winter Weather in MIAMI, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 06:00:00 (EST-5)
Reported by: Trained Spotter

A spotter and the county garage in Troy measured 2 inches of snow. A spotter in Tipp City measured a tenth of an inch of ice accumulation.

Winter Weather in MONTGOMERY, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 06:00:00 (EST-5)
Reported by: Department of Highways

The county garage in Clayton measured 1.5 inches of snow. The Dayton airport reported .7 inches of snow.

Winter Weather in PIKE, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 06:00:00 (EST-5)
Reported by: Department of Highways

The county garage in Piketon measured a tenth of an inch of ice accumulation.

Winter Weather in PREBLE, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 06:00:00 (EST-5)
Reported by: Department of Highways

The county garage near West Alexandria measured a half inch of snow.

Winter Weather in UNION, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 06:00:00 (EST-5)
Reported by: Department of Highways

The highway department in Marysville measured 5.5 inches of snow. A public report of 4 inches of snow came out of Richwood.

Winter Weather in SCIOTO, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 06:00:00 (EST-5)
Reported by: CoCoRaHS

The rainfall observer in Rosemount measured two tenths of an inch of ice. The county emergency manager measured a tenth of an inch of ice in Portsmouth.

Winter Weather in SHELBY, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 06:00:00 (EST-5)
Reported by: Department of Highways

The highway department in Sidney measured 4 inches of snow.

Winter Storm in BUTLER, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 08:00:00 (EST-5)
Reported by: Trained Spotter

A half inch of ice accumulation was reported west of Mason. Two other spotters measured a quarter inch in both Oxford and 2 miles southeast of Fairfield. In addition, .4 inches of snow topped any icy accumulations south of Trenton and in Liberty Township.

Winter Storm in CLERMONT, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 08:00:00 (EST-5)
Reported by: Trained Spotter

A tenth of an inch of ice accumulation was measured 3 miles east of Batavia. It is estimated that the northern portion of the county received up to a quarter inch of icy accumulations.

Winter Storm in CLINTON, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 08:00:00 (EST-5)
Reported by: Department of Highways

An inch of snow was measured by the highway department south of Wilmington. A NWS employee 4 miles west of Wilmington, the cooperative observer in Wilmington, and the NWS office all measured .4 snowfall on top of icy accumulations. The NWS employee west of town measured .2 ice accumulation, while the NWS office measured .15 inches of glaze.

Winter Storm in FAIRFIELD, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 08:00:00 (EST-5)
Reported by: Department of Highways

The highway department in Lancaster measured a quarter inch of ice and .3 inches of snow on top of it.

Winter Storm in FAYETTE, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 08:00:00 (EST-5)
Reported by: Trained Spotter

A spotter in Washington Court House measured a tenth of an inch of ice accumulation. The cooperative observer in town measured two tenths of an inch of snow on top of the ice. Other parts of the county are estimated to have a quarter inch of ice.

Winter Storm in HAMILTON, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 08:00:00 (EST-5)
Reported by: COOP Observer

The cooperative observer 4 miles southeast of Cleves measured a quarter inch of ice, as did one of the television stations in Cincinnati. A spotter in Cheviot reported two tenths of ice accrual, as did the rainfall observer 9 miles northwest of Cincinnati.

Winter Storm in HIGHLAND, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 08:00:00 (EST-5)
Reported by: Department of Highways

The highway department in Hillsboro measured a quarter inch of ice accumulation.

Winter Storm in HOCKING, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 08:00:00 (EST-5)
Reported by: Department of Highways

The highway department in Logan measured a quarter inch of ice accumulation, as did the cooperative observer in Laurelville.

Winter Storm in ROSS, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 08:00:00 (EST-5)
Reported by: Department of Highways

The highway department in Chillicothe measured a quarter inch of ice and 1.5 inches of snow on top of it.

Winter Storm in PICKAWAY, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 08:00:00 (EST-5)
Reported by: Department of Highways

The highway department in Circleville measured 1.5 inches of snow. It is estimated that other portions of the county got a quarter inch of ice.

Winter Storm in WARREN, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 08:00:00 (EST-5)
Reported by: NWS Employee

An employee northwest of Clarksville reported .15 ice accrual with .6 snow on top. An employee in Maineville measured a tenth of an inch of ice and a half inch of snow. Another employee southeast of Lebanon measured a tenth of an inch of ice and .4 snowfall.

Winter Weather in ADAMS, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 06:00:00 (EST-5)
Reported by: COOP Observer

The cooperative observer 6 miles east-northeast of West Union measured .05 inches of glaze. The Highway department reported a tenth of an inch of snow in West Union.

Winter Weather in AUGLAIZE, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 06:00:00 (EST-5)
Reported by: Department of Highways

The Highway department in Wapakoneta measured 4 inches of snow.

Winter Weather in BROWN, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 06:00:00 (EST-5)
Reported by: Department of Highways

The Highway department in Georgetown measured .04 inches of ice accumulation.

Winter Weather in CHAMPAIGN, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 06:00:00 (EST-5)
Reported by: Department of Highways

The Highway department in Urbana measured 3.5 inches of snow. The cooperative observer 2 miles northeast of St. Paris measured 2.3 inches.

Winter Weather in CLARK, OHIO
From 20-JAN-12 20:00:00 to 21-JAN-12 06:00:00 (EST-5)
Reported by: CoCoRaHS

The rainfall observer northwest of Springfield measured 1.3 inches of snow. The Highway department in Springfield measured an inch of snow. The cooperative observer in New Carlisle measured a half inch of snow.