Red flag criteria is generally when relative humidity is at 15% or less, combined with sustained winds and/or gusts of 25 mph or greater. Both of these conditions must occur simultaneously for at ...

The National Weather Service has extended to Friday afternoon a Red Flag warning for the San Gorgonio Pass and much of the surrounding mountains. The agency said damaging winds of up to 60 miles ...

Red flag warnings are a life-saving warning issued by the National Weather Service, and we aren’t talking about the red flags that are flown at the beach (which are also a life-saving warning ...