Why is power partially on?

Seems like a lot of the eastside is without power. It's a pretty chilly morning to be without power.

https://customer.montana-...outage-map

Mine went out for a minute or so this morning, but came back up again over by Lincoln school.

Mine went out sometime last night. I don't know for certain when because my plug-in clocks all have battery backup but the microwave didn't know the time when I got up this morning. House is chilly but it's 20 below.