The lower 48 states are split in more ways than just politics on Monday. A jet stream that is coiled like a snake is causing hot and humid air to surge northeast out of the Great Plains and South, with high temperatures of between 10 to 25 degrees Fahrenheit above average from Minnesota to Massachusetts and points south.
Meanwhile, on the other side of that snake, a dip in the jet stream is bringing unusually cold and wet weather to the West, dumping June snows on the Sierra Nevada mountains, further extending what appears to be a never-ending ski season.
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