Thanksgiving Day traffic could be a mess as O.C. under flash flood warning; storm closes Grapevine

For those hitting Southern California roads for Thanksgiving Day, a winter storm that blew in Wednesday could make travel hazardous, officials warn. Waterspouts, hail and lightning are also on the menu.
Early Thursday morning heavy snow closed Interstate 5 in the Grapevine, and the CHP is suggesting motorists use Highway 101 as an alternate route.
Caltrans reports the Northbound I-5 is closed at Lake Hughes Road in Castaic, and southbound lanes are closed at Grapevine Road.
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