So what is going on with this madness? There is a high amplitude weather pattern going on right now, so while we cool down significantly, some places are heating up rather significantly. One extreme is pushing up against another extreme, and we just happen to find ourselves on the cooler side this week. There is an unusually strong "L" spinning over the Great Lakes that is helping to push this cool air farther south, and it will go all the way down into the southern US by midweek.
|Large bends in the jet stream, resulting in more dramatic shifts in weather|
|The pattern, or jet stream, doesn't bend north or south quite as far, which is a lower amplitude pattern.|
|Widespread rain is expected into Wednesday.|