December 28, 2015 Sleet, Freezing Rain, and Strong Winds

Tornado Outbreak Expected Today in the Central U.S. Followed by Multi-Day Heavy Rainfall Event

A tornado outbreak is expected today and tonight from parts of the lower Mississippi Valley into the Mid-South and lower Ohio Valley. Numerous tornadoes, along with multiple long-track EF3+ tornadoes, appear likely. A multi-day, potentially historic heavy rainfall event may produce catastrophic and life-threatening flooding today through Saturday from the Ozarks into the Ohio River Valley. Read More >

Storm Impacts

At the storm's peak, approximately 68,000 people were without power across Michigan

Hazardous travel did result due to slippery/slushy roads

Wind gusts of 40-60 MPH also contributed to power outages and scattered tree limbs down

On Monday, December 28, 2015, low pressure tracked north through the western Great Lakes, producing a significant winter storm for much of the region. Lower Michigan received a combination of snow, sleet, and freezing rain. The freezing rain was mainly confined to far Southern Lower Michigan, where up to a quarter inch of ice accumulated. Much of Southwest Lower Michigan reported 1-4 inches of sleet (see reports HERE), while heavier snow fell across Northern Lower Michigan.

Here is a radar loop of the event between 8 AM Monday and 1 AM Tuesday

The accumulations as far north as Ludington were mainly in the form of sleet, while the heavier amounts up toward Gaylord were in the form of wet snow. It is unusual to have sleet falling for several hours. A layer of air warmer than freezing was located about 6,000 feet above the ground. This caused snow to melt into rain as it fell through this layer. Below this, air well below freezing from the ground up to about 2,500 feet caused the rain to freeze into sleet. Very strong, cold winds blowing in from the east helped keep cold temperatures in place near the ground, which allowed the sleet to persist well into the evening. Below is a graphic illustrating this process.