Cold temperatures expected to give way to 4-6 inches of snow in the Ann Arbor area

Temperatures plunged overnight, as seen this morning on the sign outside Whitmore Lake High School. Steve Pepple | AnnArbor.com

Don’t worry — it won't be this cold all day long.

But watch out, there’s another 4 to 6 inches of snow coming our way.

A high-pressure system from Canada combined with clear skies and fresh snow to drive temperatures in Ann Arbor and surrounding areas down below zero overnight, said National Weather Service meteorologist Dave Kook.

It was 4 below zero around 8:30 a.m. in downtown Ann Arbor.

Those temperatures are going to climb fast, Kook said. It’s likely to reach 30 this afternoon, with temps overnight in the 20s and a little bit of snow and rain mix. But no real accumulation is expected, Kook said.

That changes Thursday night into Friday morning, when a system working up from the south is expected to “clip” southeast Michigan and add 4 to 6 inches of fresh snow to the 9 inches already on the ground, Kook said.