A geomagnetic storm may make the northern lights visible in Wisconsin on Thanksgiving. Here’s what you should know.

Wisconsinites traveling for Thanksgiving might run into small amounts of snow in the southern half of the state, though the forecast will become more certain later in the week. The main chances for snow land between Wednesday during the day through Thursday evening.

The holiday week begins with an impact day as showers and colder temperatures are expected to affect southern Wisconsin. It has been a drizzly Monday with showers into the evening, followed by a drop in temperatures overnight.