Parts of northwestern Harris, southwestern Montgomery and northeastern Waller counties were briefly under a tornado warning Tuesday afternoon, the National Weather Service said, as the prospect of severe storms on Christmas Eve loomed.

A pair of storms will disrupt travel across the south-central U.S. during the Christmas holiday, bringing intense thunderstorms, flash flooding, and localized fog from Texas to Arkansas and Louisiana.

The NWS Fort Worth TX issued a flood warning at 2:10 p.m. on Tuesday in effect until Wednesday at 3:07 a.m. Minor flooding is occurring and minor flooding is forecast for White Rock Creek near White Rock Creek At Greenville Ave from this afternoon to late tonight.

"The Flood Advisory will expire at 4:30 a.m. early this morning for a portion of northern California, including the following areas, San Francisco and San Mateo. The heavy rain has ended. Urban area and small stream flooding is no longer expected to pose a threat. Please continue to heed remaining road closures," states the NWS San Francisco CA.