A major warming trend will affect over 200 million people this week as above-average temperatures spread eastward. The jet stream pattern will drive temperatures 20 to 30 degrees above normal, with the 60s reaching as far north as Chicago and the Northeast finally getting in on the warmth. Numerous record highs are possible Monday and Tuesday, with temperatures reaching the 70s across the Plains and from Boston to Atlanta by Wednesday, and 80s in southern Texas. Watch for the latest on this widespread warmup.

February does actually bring tornadoes, usually across the South. Warm, moist air begins to creep north from the Gulf and can help bring the ingredients for tornado producing severe storms. Meteorologist Rob Shackelford breaks down why and where.

Just enough cold air and moisture will bring a chance of snow for parts of the Northeast and Mid-Atlantic, including Philadelphia and New York. Here’s how much snow you might wake up to early Monday morning.

Several days of rain and mountain snow are slamming California this week. From Pebble Beach to San Francisco and Sacramento, the rain will continue through Sunday before drifting southward toward Los Angeles and San Diego. There is some flooding potential on Monday for lower elevations, especially over burn scars from recent fires. The Sierra Nevada could take on many feet of new snow in the week ahead. The moisture will continue to stretch eastward, bringing much-needed snow to the Four Corners region. Here’s the latest forecast.

While this spring outlook may not see much in terms of change right away, a shift is coming that may make millions very happy. We break it down below.