Days 6-10/11-15 commentary: The 6-10 day forecast is surprisingly cold especially in the Central U.S. Early period eastern U.S. storm drives the following cold outbreak. For the moment, limited (if any) arctic air into the U.S. The 11-15 day forecast roars warm in the East with more following cold Northwest U.S.
Days 16-20 commentary: Â Cold pattern in the U.S. moderates while eastern states are quite warm.
Snow commentary: Snow cover is impressive across the northern half of the U.S. and will resist any Pacific warming. In fact, the 6-10 day period is snowy again with a significant snow storm into the upcoming weekend East-Central U.S.
Chicago 15-day forecast: The arctic air departs Chicago early this week with a warm spike to follow. But cold temperatures (with snow) return this weekend and early next week. Moderation follows in a volatile pattern ahead.