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

Dangerous, Record-Breaking Heat to Continue in the Central and Eastern U.S.; Severe Thunderstorms in the Upper Midwest; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will continue across most of the central and eastern U.S this week. Heat indices will exceed 100 degrees. Severe storms will be possible from the northern Plains into the Midwest and Great Lakes regions, as well as across the southern Appalachians Thursday, with the primary threat large to very large hail. Critical fire weather to continue in the Four Corners Region 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 11 AM to 11 PM Monday

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.