We are watching a powerful winter/spring storm system that will impact much of our region today, tonight and tomorrow. Areas of rain will develop today and then mix with and eventually change to snow tonight. Most places will get mostly rain, however parts of northeastern South Dakota and much of Minnesota could get heavy snow later today, tonight into tomorrow morning.

There will be plenty of moisture with the system. Most places will get one-half inch to an inch of liquid precipitation over the next couple of days. Unfortunately in some places that precip will come in the form of snow. A Winter Weather Advisory is in effect for Aberdeen, Watertown, Brookings, Pipestone, Worthington and the Lake Okoboji area. A Winter Storm Warning is in effect for areas east of that line and include Sisseton, Milbank, Clear Lake, Marshall, Redwood Falls, Windom and Jackson. Warnings and advisories will go into effect later this morning across northeastern South Dakota, this afternoon across parts of Minnesota. Check our WEATHER ALERTS page for details on your area.

Stay tuned for updates, there could still be changes to this forecast depending on the temperature profile and when and if rain changes to snow in some of these locations.

Here’s a breakdown for places that will be impacted by winter weather over the next 24 hours:

SIOUX FALLS
Cloudy and windy with rain today. Rainfall amounts of up to one-quarter inch will be possible by the end of the day. Rain will continue into this evening eventually mixing with then changing to snow late tonight. An additional one-half inch or more of liquid precipitation is possible with around an inch of snow accumulation. Snow will continue into tomorrow morning with some areas of light freezing drizzle possible as well.

ABERDEEN
A Winter Weather Advisory is in effect from 7 AM today through 7 AM Saturday. Today will be cloudy, windy and colder with snow that will mix with rain at times during the day. Snow will continue into tonight. Total accumulation amounts of 3 to 7 inches will be possible. Amounts will depend on when the rain changes to snow.

WATERTOWN
A Winter Weather Advisory is in effect from 10 AM today through 7 AM Saturday. Areas of snow will mix with rain at times today with snow continuing into tonight. Snowfall accumulation amounts of 4 to 8 inches will be possible. Heavier amounts are likely north and east of Watertown. Amounts will depend on when the rain changes to snow.

MARSHALL
A Winter Storm Warning is in effect from 4 PM today through 10 AM Saturday. Light snow will mix with rain this morning and continue into this afternoon. Snowfall accumulation of around in inch is possible through today. Snow, rain and freezing rain is likely this evening with snow becoming heavy by late evening and continuing through the night. Snow accumulation amounts of 6 to 10 inches will be possible. Light snow mixed with freezing rain will continue into tomorrow morning, ending by early afternoon.