33.49364, -117.14836

Active Advisories

High Wind Watchbeginning Tue 10:00 am, expires Thu 4:00 am

* WHAT...Northeast winds 20 to 40 mph with gusts 50 to 60 mph possible in the Inland Empire, strongest below the Cajon Pass. Northeast winds 30 to 50 mph with gusts up to 75 mph possible on the coastal slopes of the San Bernardino County mountains.

* WHERE...San Bernardino County Mountains and San Bernardino and Riverside County Valleys-The Inland Empire.

* WHEN...From Tuesday morning through late Wednesday night.

* IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles.

* ADDITIONAL DETAILS...Strongest winds will occur overnight Tuesday into Wednesday morning. Wind gusts 35 to 45 mph in the Inland Empire and 50 to 60 mph on the coastal slopes of the San Bernardino mountains possible Tuesday afternoon and evening.

Fire Weather Watchbeginning Wed 4:00 am, expires Thu 6:00 pm

A FIRE WEATHER WATCH HAS BEEN ISSUED FOR WEDNESDAY MORNING THROUGH THURSDAY DUE TO STRONG SANTA ANA WINDS AND LOW RELATIVE HUMIDITY IN ALL MOUNTAIN ZONES, THE INLAND EMPIRE, SAN DIEGO VALLEYS, AND INLAND ORANGE COUNTY.

The National Weather Service in San Diego has issued a Fire Weather Watch for strong gusty winds and low relative humidity, which is in effect early Wednesday morning through Thursday afternoon.

* WINDS...Northeast winds 20 to 40 mph with gusts 50 to 60 mph possible in the Inland Empire, strongest below the Cajon Pass. Northeast winds 30 to 50 mph with gusts up to 75 mph possible on the coastal slopes of the San Bernardino County mountains. Northeast winds on Thursday are expected to weaken, with gusts of 40 to 60 mph possible. Strongest winds will occur on the foothills of the San Bernardino mountains and below the Cajon Pass.

* RELATIVE HUMIDITY...For Wednesday, relative humidity will fall to 15 to 20 percent. For Thursday, relative humidity will fall to 7 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.

Air Quality Alertuntil Mon 10:00 am

* WHAT...The South Coast AQMD has issued a mandatory wood-burning ban for residents in the South Coast Air Basin. The No-Burn rule bans burning wood, pellets, and manufactured fire logs in any indoor or outdoor wood-burning device.

* WHERE...The South Coast Air Basin, which includes Orange County and non-desert portions of Los Angeles, Riverside, and San Bernardino counties. No-Burn Day alerts do not apply to areas above 3,000 feet in elevation, the Coachella Valley, or the High Desert. Homes that rely on wood as a sole source of heat, low-income households and those without natural gas service also are exempt from the requirement.

* WHEN...Monday, January 6, 2025.

* IMPACTS...Particles in smoke can get deep into the lungs and cause health problems (including asthma attacks), increases in emergency room visits, and hospitalizations. No-Burn Days are needed to protect public health when fine particle pollution levels are expected to be high anywhere in the South Coast Air Basin. No-Burn Days are based on fine particle pollution levels that are forecasted for an entire 24-hour period, which may not be reflected in real- time air quality maps.

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