"We're forecasting 6-8 inches in Mankato", said Bill Borghoff of the National Weather Service in Chanhassen. Specifically, what to do if one forms.
Locals are encouraged to watch and be prepared for severe weather.
Meteorologist Kerry Hanko said this spring blizzard is different from many that occur this time of year.
April tornadoes are relatively rare, with just 1.2 reported on average, according DNR records.
The tornado watch is in effect because the thunderstorms expected from the system can produce tornadoes suddenly, sometimes with little or no warning.
The weather service also issued a rip current statement, which states there will be a high risk of rip currents at area beaches through Tuesday afternoon.
The tornado watch covers areas south of Interstate 64 and west of Interstate 95, including metro Richmond, South Hill, Famville, Dinwiddie, Goochland, Crewe and Lawrenceville.
A tornado watch has been issued for Beaufort County until 7 p.m. this evening. Note that most cities and counties will activate outdoor warning siren systems.
Friday is starting out on a stormy note west of the Madison area, with thunderstorms and strong winds hitting Iowa and southeast Minnesota.
The National Weather Service assessment team confirms a tornado struck an area of Texas County Friday night.
He said it is worrisome to hear rainfall totals could reach 4 inches.
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