× Red Flag Warning
Until 2025-01-07T14:30:00-08:00 • National Weather Service
...A PARTICULARLY DANGEROUS SITUATION IS EXPECTED FOR INLAND ORANGE COUNTY, THE SANTA ANA MOUNTAINS, INLAND EMPIRE, AND SAN BERNARDINO MOUNTAIN FOOTHILLS FROM 7 AM TO 1 PM WEDNESDAY. A PERIOD OF WIDESPREAD, STRONG WINDS ACCOMPANIED BY VERY DRY AIR AND CRITICALLY DRY FUELS WILL RESULT IN DANGEROUS FIRE WEATHER CONDITIONS. ANY NEW FIRE IGNITION IN THESE AREAS WILL LIKELY HAVE VERY DANGEROUS WILDFIRE SPREAD AND BEHAVIOR WITH GREAT DIFFICULTY IN CONTAINMENT THAT COULD IMPACT LIFE AND PROPERTY... ...A RED FLAG WARNING IS IN EFFECT FOR THIS AFTERNOON THROUGH THURSDAY DUE TO STRONG SANTA ANA WINDS AND LOW RELATIVE HUMIDITY FOR THE SAN BERNARDINO COUNTY MOUNTAINS, THE INLAND EMPIRE, SANTA ANA MOUNTAINS, AND INLAND ORANGE COUNTY... ...A RED FLAG WARNING IS IN EFFECT FOR LATE THIS AFTERNOON THROUGH WEDNESDAY DUE TO STRONG SANTA ANA WINDS AND LOW RELATIVE HUMIDITY FOR COASTAL ORANGE COUNTY... ...A RED FLAG WARNING IS IN EFFECT FOR WEDNESDAY MORNING THROUGH THURSDAY DUE TO STRONG SANTA ANA WINDS AND LOW RELATIVE HUMIDITY FOR SAN DIEGO AND RIVERSIDE COUNTY MOUNTAINS, SAN DIEGO VALLEYS, AND THE SAN GORGONIO PASS... * WINDS...Northeast winds 20 to 40 mph with gusts 50 to 60 mph in the Inland Empire, strongest below the Cajon Pass. Northeast winds 30 to 50 mph with gusts up to 75 mph on the coastal slopes of the San Bernardino County mountains. Strongest winds and driest conditions will occur on Wednesday. Winds will weaken Wednesday afternoon, but remain elevated with gusts of 40 to 50 mph into Thursday, strongest on the mountain foothills and near the Cajon Pass. * RELATIVE HUMIDITY...Lowest daytime humidity of 15 to 20 percent today and 10 to 15 percent on Wednesday with a poor recovery to 20 to 30 percent on Tuesday night. Minimum relative humidity Thursday will be 10 to 15 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Winds could damage outdoor property and will make for difficult driving conditions. * LOCATION...San Bernardino and Riverside County Valleys -The Inland Empire and San Bernardino County Mountains-Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest.