A low pressure system tracked from Arkansas to the Upper Ohio Valley and spread heavy snow north into Michigan. This Valentine's snowstorm marked the season's first snowfall over 2 inches for much of the affected area. Northeasterly winds frequently gusted to 30 MPH and created extensive blowing and drifting snow. In addition, temperatures were in the single digits with wind chill values around 15 below zero. The snow began Tuesday afternoon of the 13th and became heavy at times through the evening and into the early morning hours of the 14th. The winds made it extremely difficult to measure the snow, but trained spotters estimated 6 to 9 inches of snow fell on areas along and east of a line from Port Huron to Adrian. Snow drifts from 3 to 5 feet were reported across this same area. A number of county roads were impassable, prompting officials to close some roads. Several motorists had to be rescued when their vehicles became stuck in snow drifts in Lenawee County. Although lesser amounts of snow (3 to 5 inches) fell across Livingston, Genesee, and Lapeer Counties, numerous accidents and multiple cars in ditches were reported in those counties as well. Nearly all schools along and south of M-59, including Livingston County schools, closed on Valentine's Day due to the very poor road conditions. A 70 year old man from Roseville died (indirectly) of a heart attack while shoveling snow. The snow ended by sunrise on the 14th, but poor visibilities persisted for several more hours as the wind continued to blow the snow around. Here are some of the higher snowfall totals from each county:
Morenci (Lenawee) 5.8 inches.
Dundee (Monroe) 8.4 inches.
Monroe (Monroe)  7.0 inches.
Ann Arbor (Washtenaw) 7.0 inches.
Wyandotte (Wayne) 8.5 inches.
Troy (Oakland)  7.0 inches.
Sterling Heights (Macomb)  8.2 inches.
Ruby (St Clair)  6.5 inches.

Winter Storm in OAKLAND, MICHIGAN
From 13-FEB-07 14:00:00 to 14-FEB-07 03:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported 7 inches of snow in 12 hours.

Winter Storm in ST. CLAIR, MICHIGAN
From 13-FEB-07 15:00:00 to 14-FEB-07 06:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported 7 inches of snow in 12 hours.

Winter Storm in WASHTENAW, MICHIGAN
From 13-FEB-07 14:00:00 to 14-FEB-07 03:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported 7 inches of snow in 12 hours.

Winter Weather in LIVINGSTON, MICHIGAN
From 13-FEB-07 14:00:00 to 14-FEB-07 03:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotters reported 3 to 5 inches of snow with drifts up to a foot. Considerable blowing and drifting snow caused over 50 accidents with an additional 20 cars sliding off the road and into ditches.

Winter Storm in MONROE, MICHIGAN
From 13-FEB-07 13:00:00 to 14-FEB-07 05:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported 9 inches of snow in 12 hours.

Winter Storm in MACOMB, MICHIGAN
From 13-FEB-07 14:00:00 to 14-FEB-07 06:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported 8 inches of snow in 12 hours.

Winter Storm in LENAWEE, MICHIGAN
From 13-FEB-07 13:00:00 to 14-FEB-07 03:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported 6 inches of snow in 12 hours.

Winter Storm in WAYNE, MICHIGAN
From 13-FEB-07 14:00:00 to 14-FEB-07 05:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported 9 inches of snow in 12 hours.

Winter Weather in GENESEE, MICHIGAN
From 13-FEB-07 14:00:00 to 14-FEB-07 03:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Two to four inches of snow with considerable blowing and drifting caused dozens of cars to slide off roads and into ditches.

Winter Weather in LAPEER, MICHIGAN
From 13-FEB-07 14:00:00 to 14-FEB-07 03:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Two to four inches of snow with considerable blowing and drifting caused dozens of cars to slide off roads and into ditches.