Snow developed ahead of an area of low pressure and an upper level trough. Plentiful moisture combined with strong frontogenetical forcing produced an narrow area of heavy snow. To the southwest of the heavy snow, rain fell along with a few thunderstorms. To the northeast of the snow band, very dry air caused a sharp cut-off to the snow. A narrow band of intense snow produced amounts of 8 to 12 inches, with some locations receiving over 2 inches per hour. The 10.2 inches of snow at Indianapolis set the daily snowfall record and became the second highest one day total for the month of March. Visibility at the Indianapolis International Airport was a quarter of a mile or less from about 2:30 PM to 4:30 PM EDT.

Heavy Snow in MARION, INDIANA
From 24-MAR-18 01:00:00 to 24-MAR-18 20:00:00 (EST-5)
Reported by: Trained Spotter

Snowfall of 7 to 10.5 inches was reported from Marion County. The highest amount reported came in from one mile north-northeast of Clermont at 10.5 inches. Owing partially to the event being well forecast and on a Saturday, no other impacts were reported.

Heavy Snow in JOHNSON, INDIANA
From 24-MAR-18 01:00:00 to 24-MAR-18 20:00:00 (EST-5)
Reported by: Public

Snowfall of 5 to just over 10 inches was reported from Johnson County. The highest amount reported came in from New Whiteland at 10.2 inches. Owing partially to the event being well forecast and on a Saturday, no other impacts were reported.

Heavy Snow in HAMILTON, INDIANA
From 24-MAR-18 01:00:00 to 24-MAR-18 20:00:00 (EST-5)
Reported by: Public

A public report of 6.2 inches of snow came in from the Carmel area. Owing partially to the event being well forecast and on a Saturday, no other impacts were reported.

Heavy Snow in PUTNAM, INDIANA
From 24-MAR-18 01:00:00 to 24-MAR-18 20:00:00 (EST-5)
Reported by: Public

A public report of 7.0 inches of snow came in from the Groveland area. Owing partially to the event being well forecast and on a Saturday, no other impacts were reported.

Heavy Snow in MORGAN, INDIANA
From 24-MAR-18 01:00:00 to 24-MAR-18 20:00:00 (EST-5)
Reported by: CoCoRaHS

Snowfall of 2 to 11 inches was reported from Morgan County. The highest amount reported came in from one mile east-northeast of Mooresville at 10.6 inches. Owing partially to the event being well forecast and on a Saturday, no other impacts were reported.

Heavy Snow in BOONE, INDIANA
From 24-MAR-18 01:00:00 to 24-MAR-18 20:00:00 (EST-5)
Reported by: CoCoRaHS

Snowfall of 5 to 10 inches was reported from Boone County. The highest amount reported came in from one mile east of New Ross at 9.7 inches. Owing partially to the event being well forecast and on a Saturday, no other impacts were reported.

Heavy Snow in PARKE, INDIANA
From 24-MAR-18 01:00:00 to 24-MAR-18 20:00:00 (EST-5)
Reported by: Trained Spotter

A trained spotter's report of 7.0 inches of snow was received from two miles north-northeast of Bloomingdale. The Rockville area also saw snow of over 6.0 inches. Owing partially to the event being well forecast and on a Saturday, no other impacts were reported.

Heavy Snow in VERMILLION, INDIANA
From 24-MAR-18 01:00:00 to 24-MAR-18 20:00:00 (EST-5)
Reported by: COOP Observer

An observer's report of 6.5 inches of snow was received from four miles west-northwest of Perrysville. Owing partially to the event being well forecast and on a Saturday, no other impacts were reported.

Heavy Snow in FOUNTAIN, INDIANA
From 24-MAR-18 01:00:00 to 24-MAR-18 20:00:00 (EST-5)
Reported by: CoCoRaHS

A CoCoRaHS report of 6.5 inches was received from the Covington area. A 6.0 inch report was reported from a trained spotter in Attica. Owing partially to the event being well forecast and on a Saturday, no other impacts were reported.

Heavy Snow in SHELBY, INDIANA
From 24-MAR-18 03:00:00 to 24-MAR-18 21:00:00 (EST-5)
Reported by: COOP Observer

An observer's report of 7.1 inches of snow came in from the Morristown area. Owing partially to the event being well forecast and on a Saturday, no other impacts were reported.

Heavy Snow in RUSH, INDIANA
From 24-MAR-18 03:00:00 to 24-MAR-18 21:00:00 (EST-5)
Reported by: CoCoRaHS

A few snowfall reports of 6.0 inches came in from the Rushville area. Owing partially to the event being well forecast and on a Saturday, no other impacts were reported.

Heavy Snow in HANCOCK, INDIANA
From 24-MAR-18 03:00:00 to 24-MAR-18 21:00:00 (EST-5)
Reported by: CoCoRaHS

Snowfall of 3 to 8.5 inches was reported from Hancock County. The highest amount reported came in from one mile west-northwest of New Palestine at 8.5 inches. Owing partially to the event being well forecast and on a Saturday, no other impacts were reported.

Heavy Snow in MONTGOMERY, INDIANA
From 24-MAR-18 01:00:00 to 24-MAR-18 20:00:00 (EST-5)
Reported by: COOP Observer

An observer's report of 9.4 inches of snow was received from five miles south of Crawfordsville. Owing partially to the event being well forecast and on a Saturday, no other impacts were reported.

Heavy Snow in HENDRICKS, INDIANA
From 24-MAR-18 01:00:00 to 24-MAR-18 20:00:00 (EST-5)
Reported by: CoCoRaHS

Snowfall of 8 to 13 inches was reported from Hendricks County. The highest amount reported came in from three miles south of Brownsburg at 12.6 inches. Owing partially to the event being well forecast and on a Saturday, no other impacts were reported.