San Mateo and Santa Cruz counties are the focus of an updated tornado warning issued at 4:05 p.m. on Monday by the National Weather Service. The warning is in effect until 4:15 p.m.
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Tornado watch VS warning: What's the difference and how to prepare
While tornadoes are more common in some parts of the U.S. and at certain times of year, they can happen anywhere, any time. Get to know what the forecasts mean.
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