CALIFORNIA SNOW REPORT

* WHAT...Heavy snow expected. Total snow accumulations up to 20 inches. Winds gusting as high as 50 mph. * WHERE...Frazier Mountain Communities, Piute Walker Basin, and Tehachapi. * WHEN...From 10 PM this evening to 10 PM PST Wednesday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Monday morning and evening commutes. Gusty winds could bring down tree branches.

* WHAT...Heavy snow with total snow accumulations 3 to 5 feet above 6,000 feet with 5 to 7 feet over the highest elevations and 1 to 2 feet down to 4,000 feet. Winds could gust as high as 60 mph. * WHERE...A portion of central California. * WHEN...From 10 PM this evening to 10 PM PST Wednesday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Monday morning and evening commutes. Strong winds could cause tree damage. * ADDITIONAL DETAILS...Snow levels will begin at 5,500 to 6,000 feet on Sunday night and lower to 4,000 feet Tuesday morning. Light snow accumulations down to 3,000 feet Tuesday night into Wednesday.

* WHAT...Snow levels falling below Tejon Pass Tuesday. Light wet snow possible. Total snow accumulations 1 to 2 inches. Winds could gust as high as 40 mph. * WHERE...Grapevine. * WHEN...From Monday afternoon through Thursday morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Monday evening and Tuesday morning commutes.

* WHAT...Heavy snow expected for elevations above 2000 feet. Total snow accumulations between 6 and 15 inches. Winds gusting as high as 40 mph. * WHERE...Humboldt Interior, and Del Norte Interior. * WHEN...From 7 PM Monday to 4 PM PST Wednesday. * IMPACTS...Travel could be very difficult to impossible. Tire chains may be necessary if travelling through mountain passes. Road closures are possible.

* WHAT...Heavy snow possible elevations above 2500 feet. Total snow accumulations up to 12 inches possible. Winds could gust as high as 45 mph. * WHERE...Lake County, and Northern Mendocino Interior. * WHEN...From Monday evening through Wednesday morning. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Tuesday morning and evening commutes. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...There is still quite a bit of uncertainty on how low the snow levels will get. Tuesday morning there may be snow at Lake level in Lake county. Highway 101 may see snow, especially north of Ukiah.

* WHAT...Heavy snow expected for elevations above 5000 feet through Monday, then above 2000 feet Monday night. Total snow accumulation between 6 to 10 inches possible above 2000 feet. Total snow accumulations between 1 and 2.5 feet possible for elevations above 3000 feet. Winds gusting as high as 35 mph. * WHERE...Trinity County. * WHEN...From 7 AM Sunday to 4 PM PST Wednesday. * IMPACTS...Travel could be very difficult to impossible. Tire chains may be necessary if travelling through mountain passes.

* WHAT...Heavy snow expected. Total snow accumulations between 6 and 12 inches. Winds gusting as high as 50 mph. * WHERE...Southwestern Humboldt. * WHEN...From 10 PM Monday to 4 PM PST Wednesday. * IMPACTS...Travel could be very difficult. Gusty winds could bring down tree branches and cause power outages. * ADDITIONAL DETAILS...This may impact Mattole Road and Shelter Cove road among other roads above 2,000 feet.

* WHAT...Heavy snow possible. Total snow accumulations of 1 to 4 inches for 3500 to 4500 feet elevation possible, 6 to 12 inches for 4500 to 6000 feet elevation possible, and one to two feet above 6000 feet elevation possible. Wind gusts of 60 to 70 mph through Monday afternoon possible, and as high as 50 mph through Thursday morning possible. * WHERE...Eastern San Gabriel Mountains and Northern Ventura County Mountains. * WHEN...From Monday morning through Thursday morning. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could become treacherous. Visibilities may drop below one-quarter mile due to falling and blowing snow. Damaging winds could blow down trees and power lines. * ADDITIONAL DETAILS...There will be a break in the snowfall for Tuesday into Tuesday night, before heavy snow returns by Wednesday. However, blowing and drifting snow producing significant visibility restrictions will continue above 6000 feet elevation, even during the break in snowfall.

* WHAT...Heavy snow possible. Total snow accumulations of 1 to 4 inches for 3500 to 4500 feet elevation including the Grapevine of the Interstate-5 Corridor possible. Total snow accumulations of 6 to 12 inches above 4500 feet elevation possible. Winds could gust as high as 50 mph. * WHERE...Interstate 5 Corridor, Santa Barbara County Interior Mountains, and Southern Ventura County Mountains. * WHEN...From Tuesday evening through Thursday morning. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could become treacherous. Visibilities may drop below one-quarter mile due to falling and blowing snow.

* WHAT...West winds 25 to 40 mph with gusts 55 to 65, locally up to 70 mph possible. * WHERE...San Gorgonio Pass near Banning. * WHEN...From Monday morning through late Monday 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...Additional rounds of gusty winds expected Tuesday night into Wednesday.

* WHAT...Southwest winds 25 to 40 mph with gusts 55 to 70 mph possible. Strongest winds will be on the desert mountain slopes. * WHERE...San Diego County Mountains. * WHEN...From Monday morning through late Monday 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...Additional rounds of gusty winds expected Tuesday night into Wednesday.

* WHAT...Southwest winds 20 to 30 mph with gusts up to 60 to 70 mph possible. * WHERE...Cuyama Valley, Eastern Antelope Valley Foothills, Interstate 5 Corridor, San Luis Obispo County Interior Valleys, San Luis Obispo County Mountains, Santa Barbara County Interior Mountains, Southern Ventura County Mountains, Western Antelope Valley Foothills, and Western San Gabriel Mountains and Highway 14 Corridor. * WHEN...From Monday morning through Monday afternoon. * IMPACTS...Damaging winds could blow down trees and power lines. Travel could be difficult, especially for high-profile vehicles.

* WHAT...Flooding caused by excessive rainfall is possible. Rock and mud slides are possible near steep terrain. Debris flows are possible on burn scars. * WHERE...A portion of southwest California, including the following areas, most of Central and Southern Los Angeles County, all of Ventura County, and most of Central and Southern Ventura County, including several burn scar areas. * WHEN...From Monday morning through Monday evening. * IMPACTS...Flash flooding is possible. Excessive runoff may result in flooding of low-lying and flood-prone locations, including creeks and streams. Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded. Extensive street flooding is possible. * ADDITIONAL DETAILS... - A line of heavy showers and thunderstorms will sweep across the region on Monday, bringing the risk for flash flooding, rock and mud slides, and burn-scar debris flows across the Flood Watch area. After the passage of the line, scattered heavy showers and thunderstorms will continue into Monday evening, prolonging the flooding risk in isolated locations. Flooding and burn-scar debris flows are not expected for areas above the snow level, of approximately 6000 feet to 6500 feet elevation, where snow will fall instead of rain. - http://www.weather.gov/safety/flood