If you're new to Minnesota and confused about our rules, here's some handy advice. Print it off and tape it to the inside of your windshield for quick reference.
Q: What is this snow emergency that keeps being declared?
A: In the early 20th century, an official came out of City Hall, accompanied by heralds who blew a brief trumpet fanfare; he unrolled a scroll and read a proclamation of the emergency. This was a copy of the original Declaration of Emergency, signed by City Council members in 1862; it is now on display at the city archives.
Q: How can snow have an emergency? That sounds frightening.
A: No, not at all. A snow emergency is declared when snowfalls require serious plowing. It's a rather excessive term, if you ask me; I'd go with "Your Basic Snow-Type Situation There," or perhaps "PlowFest 2019." A heart attack is an emergency, but ambulance dispatchers don't say, "We'll be there between 6 a.m. and 5 p.m., if you're on the odd side of the street. Otherwise, tomorrow."
Ultimately, it just means you will be towed if you park certain places. Or not. I've passed cars with a wad of tickets as thick as the IRS regulations under the windshield wiper, and they never get towed.
Q: If the street has been plowed, can I park there?
A: Yes. And you will worry about getting towed until you get back to your car.