An area of low pressure moved from the Southern Plains to northern Iowa the 28th into the 29th and spread snowfall across northern Minnesota starting the morning of the 28th. Snow was moderate to heavy at times before warmer air aloft worked in and changed snow to rain, freezing rain and sleet. Snowfall totals of 6 to 8 inches were seen around the region before the changeover with higher amounts to around 9 inches in far northern areas where snow persisted longer. The heavy, wet snow caused a roof to partially collapse at a soft drink bottling plant. Additionally, icing was seen after the snow leading to a layer of ice on top of snow covered roads leading to dangerous driving conditions. Strong northeast winds and high waves along the North Shore of Lake Superior also led to flooding in downtown Grand Marais.

Heavy Snow in SOUTHERN ST. LOUIS / CARLTON, MINNESOTA
From 28-DEC-19 12:00:00 to 29-DEC-19 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Coastal Flood in SOUTHERN COOK, MINNESOTA
From 29-DEC-19 06:00:00 to 29-DEC-19 22:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Persistent northeast winds and large waves led to water flooding the streets of downtown Grand Marais.

Heavy Snow in KOOCHICHING, MINNESOTA
From 29-DEC-19 00:00:00 to 29-DEC-19 22:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in NORTHERN ST. LOUIS, MINNESOTA
From 28-DEC-19 21:00:00 to 29-DEC-19 20:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy Snow in NORTHERN COOK / NORTHERN LAKE, MINNESOTA
From 28-DEC-19 22:00:00 to 29-DEC-19 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy Snow in NORTHERN ITASCA, MINNESOTA
From 28-DEC-19 14:00:00 to 29-DEC-19 15:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Heavy Snow in CENTRAL ST. LOUIS, MINNESOTA
From 28-DEC-19 14:00:00 to 29-DEC-19 12:00:00 (CST-6)
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The heavy, wet snow caused a roof to partially collapse at a soft drink bottling plant in Virginia. A main support beam failed due to the weight of the snow, causing the roof to cave in.

Heavy Snow in SOUTHERN LAKE, MINNESOTA
From 28-DEC-19 13:00:00 to 29-DEC-19 23:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in SOUTHERN COOK, MINNESOTA
From 28-DEC-19 22:00:00 to 29-DEC-19 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in NORTHERN CASS, MINNESOTA
From 28-DEC-19 10:00:00 to 29-DEC-19 01:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in SOUTHERN ITASCA, MINNESOTA
From 28-DEC-19 11:00:00 to 29-DEC-19 02:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy Snow in SOUTHERN CASS, MINNESOTA
From 28-DEC-19 08:00:00 to 29-DEC-19 11:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in CROW WING, MINNESOTA
From 28-DEC-19 08:00:00 to 29-DEC-19 11:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in NORTHERN AITKIN, MINNESOTA
From 28-DEC-19 09:00:00 to 29-DEC-19 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in SOUTHERN AITKIN, MINNESOTA
From 28-DEC-19 09:00:00 to 29-DEC-19 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS