Clear out the gutters. Plan some extra time for the morning commute Wednesday. And don’t even think about heading up the hill for a few days. The biggest storm of the season is barreling down on Northern California. The Sacramento region could see up to 3 inches of rain this week – perhaps doubling the amount of rain we’ve received for the entire winter season – as an extreme storm arrives Tuesday afternoon. The cold, wet system will bring dangerous winds to the region, localized flooding and up to 80 inches of snow – yes, that’s nearly 7 feet – to the summits on Interstate 80 and Highway 50.