A warm front lifted north through southeast Ohio on the 3rd with a quarter to a half inch of rain. Late afternoon and evening temperatures rose into the 40s and 50s.  Winds and dew points also increased.  This combination helped accelerate the melting of the leftover snow pack.
Rains increased again overnight, with 1 to 1.7 inches of rain falling by dawn on the 4th in mainly north of the Hocking River Valley.  An automatic gauge near Lower Salem in Washington County measured 1.69 inches. Beverly had 1.48 inches of rain through dawn. This caused small stream flooding to begin.
Small stream flooding became more common along the Ohio River counties as a steady rain fell.  Rain rates were mostly 1 to 2 tenths of an inch per hour.  Total rainfall of 1.5 to 2 inches became common by that evening.
As the small stream flooding continued, the rain changed to sleet and wet snow during the late afternoon and early evening of the 4th.  Heavy wet snow quickly accumulated along the Ohio River counties during the late evening on the 4th and into the morning hours of Thursday the 5th. As the heavy snow was falling, several high water signs and barricades were stolen across Lawrence County.  Further north, the snow was lighter over Morgan and Perry Counties.
The snow diminished by early afternoon of the 5th.  A total snow accumulation of 10 to 13 inches was common from Jackson and Lawrence Counties on up the Ohio River to Washington County. For example, Waterloo of northern Lawrence County measured a 13 inch accumulation.  The snow depth at Gallipolis also went from zero to 13 inches during the storm.  Marietta reported a snow accumulation of a foot.  Further north snow accumulations were mostly 4 to 8 inches across Morgan, and 3 to 5 inches in Perry County.  An unofficial report of 17 inches was received north of Waterloo near the border with Gallia County.  A spotter in Thurman of Gallia County measured 14 inches of snow.
After transitioning from rain to snow, the wet snow accumulated on trees, especially evergreen trees.  Prolonged power outages were common in the counties adjacent to the Ohio River.
After the storm, clearing resulted in a cold dawn on the 6th for so late in the season.  The coldest minimum temperatures was 8 below zero at New Lexington of Perry County.  Waterloo of Lawrence County had 6 below zero, while Jackson had minus 3.  Near the Ohio River readings were closer to zero degrees.  Newport in Washington County was 2 below zero.
Eventually, the Ohio River had minor flooding from Gallia County on down the river through Ironton on the 6th into the 7th.  Overall, both the stream and river flooding mainly blocked roads with little damage to structures.

Heavy Snow in ATHENS, OHIO
From 04-MAR-15 18:00:00 to 05-MAR-15 12:00:00 (EST-5)
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in GALLIA, OHIO
From 04-MAR-15 18:00:00 to 05-MAR-15 12:00:00 (EST-5)
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in JACKSON, OHIO
From 04-MAR-15 16:30:00 to 05-MAR-15 12:00:00 (EST-5)
Property damage: 20.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy Snow in LAWRENCE, OHIO
From 04-MAR-15 19:00:00 to 05-MAR-15 12:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy Snow in MEIGS, OHIO
From 04-MAR-15 18:00:00 to 05-MAR-15 12:00:00 (EST-5)
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in MORGAN, OHIO
From 04-MAR-15 18:00:00 to 05-MAR-15 12:00:00 (EST-5)
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in PERRY, OHIO
From 04-MAR-15 18:00:00 to 05-MAR-15 11:00:00 (EST-5)
Property damage: 10.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy Snow in WASHINGTON, OHIO
From 04-MAR-15 18:00:00 to 05-MAR-15 12:00:00 (EST-5)
Property damage: 25.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy Snow in VINTON, OHIO
From 04-MAR-15 16:30:00 to 05-MAR-15 11:00:00 (EST-5)
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flood in WASHINGTON, OHIO
From 04-MAR-15 07:45:00 to 05-MAR-15 12:00:00 (EST-5)
Location: COALRUN
Flood cause: Heavy Rain / Snow Melt
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Newspaper

Many streams, including Duck Creek and the Little Muskingum River flooded and closed roads.   At Whipple, Duck Creek rose 12 feet in the vertical and crested around 0100E on the 5th.  Near Bloomfield, the Little Muskingum rose 20 feet and crested during the evening of the 4th.

Flood in ATHENS, OHIO
From 04-MAR-15 07:45:00 to 05-MAR-15 12:00:00 (EST-5)
Location: ALBANY
Flood cause: Heavy Rain / Snow Melt
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Department of Highways

Several roads were closed by overflowing streams.  This included portions of State Route 681 and 56.

Flood in MEIGS, OHIO
From 04-MAR-15 07:45:00 to 05-MAR-15 12:00:00 (EST-5)
Location: LANGSVILLE
Flood cause: Heavy Rain / Snow Melt
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Department of Highways

Several roads were closed due to flooding streams, including portions of State Route 124 and 143.

Flood in GALLIA, OHIO
From 04-MAR-15 10:00:00 to 06-MAR-15 22:00:00 (EST-5)
Location: RIO GRANDE
Flood cause: Heavy Rain / Snow Melt
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Department of Highways

Small streams overflowed and blocked roads on the 4th into the 5th. Backwater from the Ohio River continued minor flooding into the 6th.

Cold/Wind Chill in ATHENS, OHIO
From 06-MAR-15 00:00:00 to 06-MAR-15 10:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Cold/Wind Chill in GALLIA, OHIO
From 06-MAR-15 00:00:00 to 06-MAR-15 10:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Cold/Wind Chill in JACKSON, OHIO
From 06-MAR-15 00:00:00 to 06-MAR-15 10:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Cold/Wind Chill in LAWRENCE, OHIO
From 06-MAR-15 00:00:00 to 06-MAR-15 10:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Cold/Wind Chill in MEIGS, OHIO
From 06-MAR-15 00:00:00 to 06-MAR-15 10:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Cold/Wind Chill in MORGAN, OHIO
From 06-MAR-15 00:00:00 to 06-MAR-15 10:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Cold/Wind Chill in PERRY, OHIO
From 06-MAR-15 00:00:00 to 06-MAR-15 10:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Cold/Wind Chill in VINTON, OHIO
From 06-MAR-15 00:00:00 to 06-MAR-15 10:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Cold/Wind Chill in WASHINGTON, OHIO
From 06-MAR-15 00:00:00 to 06-MAR-15 10:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Flood in LAWRENCE, OHIO
From 04-MAR-15 10:00:00 to 07-MAR-15 12:00:00 (EST-5)
Location: IRONTON
Flood cause: Heavy Rain / Snow Melt
Property damage: 150.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Several small streams, including Symmes Creek flooded on the 4th into the 5th.  The Ohio River caused minor flooding and road closures to continue into the 7th.