Word has it that watching weather channels is a leading cause of premature aging. Case workers are trained to handle severe onset patients who run multiple weather channels on different devices throughout the house.
^ /me not guilty
Approaching hurricanes have a talent for suspense worthy of Hitchcock and can also cause premature aging, in addition to the behavior you describe. "The person with a clock always knows what time it is, while the person with two clocks can never be sure." It's the same with multiple weather channels. Pick one and go with it. Or, like the serial monogamists of Hollywood, at least pick just one at a time!
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