A weather alert was issued by the National Weather Service on Sunday at 4:32 a.m. EST for dense fog until 10 a.m. EST for Otsego, Kalkaska, Crawford, Oscoda, Wexford, Missaukee, Roscommon, Ogemaw and Gladwin counties.

The National Weather Service issued a dense fog advisory at 6:24 a.m. on Sunday in effect until 9 a.m. for Northern Clinton, Northern Centre, Southern Centre, Northern Lycoming, Southern Clinton and Southern Lycoming as well as Warren,

On Sunday at 1:57 a.m. the NWS Los Angeles/Oxnard CA issued a dense fog advisory. The advisory is for San Luis Obispo County Beaches, San Luis Obispo County Inland Central Coast, Santa Barbara County Central Coast Beaches,

Holiday travelers returning home this weekend could contend with more delays at airports as severe thunderstorms intensify in the South and a parade of atmospheric river-fueled storms slams the West.

Severe storms are causing travel disruptions as millions of Americans navigate one of the busiest holiday seasons of the year. Follow Newsweek's live blog.

ST. TAMMANY PARISH, La. ( WGNO) — The National Weather Service confirmed a tornado touched down in St. Tammany Parish on Friday, Dec. 27. In a post to social media, NWS officials reported a “weak” EF-0 tornado hit the rural part of the parish with maximum winds of 80 miles per hour.

The National Weather Service has issued a tornado watch for the Augusta area through 1 p.m. Sunday. Burke, Columbia, McDuffie and Richmond counties are among the Georgia counties included in the watch,