A potent storm system is moderate to heavy snowfall and powerful winds causing whiteout conditions. Expect snowfall until early this evening. Strong north winds will reach 40 to 55 miles per hour, causing blowing and drifting snow and reducing visibility on roads and highways.

Today is a First Alert 6 Weather Day for a combination of strong winds and snow. Blizzard Warnings are now in place for areas along and north of I-80, including the metro, for most of the day.The change over from rain to snow has happened with snow now falling across the metro.

For radar-tracking, hourly forecasts and more, download the free TV6 First Alert Weather App: alerts in effect HERE.A winter storm spreads moderate to heavy wet snow and the wintry mix mainly across portions of Central and Eastern Upper Michigan Wednesday.