President Donald Trump will visit southern California this week amid looming winds and threats of new flames with tens of thousands of acres torched and buildings destroyed, according to reports.

Nearly two weeks after the start of two of the most devastating wildfires to hit the Los Angeles area, Southern California is under an extreme fire risk warning again.

The National Weather Service office sounded the alarm of a “particularly dangerous situation" that is set to go in effect Monday at noon and last through Tuesday at 10 a.m. for swaths of Los Angeles County and most of Ventura County.

Authorities urged people not to mow their lawns to prevent sparking a fire, nor start any fires that could get out of control. They also asked residents to review their evacuation plans and ready emergency kits and be on the lookout for any new blazes and report them quickly.

Jon Keeley, a research ecologist in California with the U.S. Geological Survey and adjunct professor at UCLA, explains what causes extreme winds like this in Southern California, and why they create such a dangerous fire risk. The Santa Ana winds are dry ...

Santa Ana winds are common in Southern California during cooler months. Here’s a look at the often-fierce winds that topple power lines and trees and can

Although the Santa Anas are a routine part of life for people living in southern California, the winds are particularly violent and destructive this time around, experts say.

The name is understood to be linked to Santa Ana Canyon ... of Utah and other states. The sinking air loses its moisture and flows in a clockwise direction toward Southern California, where ...

Wildfires fueled by strong Santa Ana winds have devastated Southern California ... particularly droughts in the western United States. Franz Schug, who studies wildland-urban interfaces at ...

Jon Keeley, a research ecologist in California with the U.S. Geological Survey and adjunct professor at UCLA, explains what causes extreme winds like this in Southern California, and why they create such a dangerous fire risk. The Santa Ana winds are dry ...

LA wildfires devastate areas as drought and Santa Ana winds intensify flames Intensifying weather patterns lead to devastating wildfires across Southern California