CALIFORNIA SNOW REPORT

* WHAT...Heavy snow. Additional snow accumulations between 1 and 30 inches. Winds gusting as high as 60 mph. * WHERE...Yosemite NP outside of the valley. * WHEN...Until 10 PM PST Friday. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. The strong winds and weight of snow on tree limbs may down power lines and could cause sporadic power outages. Whiteout conditions are expected and will make travel treacherous and potentially life-threatening. Travel could be very difficult to impossible. The hazardous conditions could impact the Friday morning and evening commutes. Strong winds could cause tree damage.

* WHAT...Heavy snow. Additional snow accumulations up to 28 inches. Winds gusting as high as 55 mph. * WHERE...Sierra Nevada south of Yosemite NP for elevations above 7,000 feet. * WHEN...Until 10 PM PST Friday. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. The strong winds and weight of snow on tree limbs may down power lines and could cause sporadic power outages. Whiteout conditions are expected and will make travel treacherous and potentially life-threatening. Travel could be very difficult to impossible. The hazardous conditions could impact the Friday morning and evening commutes. Strong winds could cause tree damage.

* WHAT...Heavy snow above 4000 feet. Additional snow accumulations between 4 and 6 inches. Winds gusting as high as 40 mph. * WHERE...Trinity County. * WHEN...Until 10 PM PST Friday. * IMPACTS...Travel could be very difficult.

* WHAT...Heavy snow expected. Total snow accumulations of 1 to 3 feet above 4500 feet, with locally higher amounts at peaks. Up to 1 foot between 3500 to 4500 feet. Wind gusts up to 60 mph. * WHERE...Burney Basin / Eastern Shasta County, Mountains Southwestern Shasta County to Western Colusa County, and Shasta Lake Area / Northern Shasta County Counties. * WHEN...Until 10 PM PST Friday. * IMPACTS...Dangerous travel conditions with chain controls and road closures. Localized tree damage, power outages, and low visibility due to the combination of heavy wet snow and strong winds. * ADDITIONAL DETAILS...Snow levels will be above 4500 feet today, then drop to 3500 feet by tonight. Snowfall rates up to an inch per hour at times.

* WHAT...Heavy snow expected. total accumulations up to a foot between 4500 to 5500 feet. 4 to 8 feet, with locally higher amounts above 5500 feet. Wind gusts up to 60 mph. * WHERE...West Slope Northern Sierra Nevada and Western Plumas County/Lassen Park Counties. * WHEN...Until 10 PM PST Friday. * IMPACTS...Dangerous travel conditions with chain controls and road closures. Localized tree damage, power outages, and low visibility due to the combination of heavy wet snow and strong winds. * ADDITIONAL DETAILS...Snow levels will be around 4500 to 5500 feet today through Friday. Snowfall rates of 1 to 2 inches per hour at times.

FFWLOX The National Weather Service in Los Angeles/Oxnard has issued a * Flash Flood Warning for... The Santa Monica Mountains and Foothills from the Malibu Area to Hollywood of Southwestern Los Angeles County in southwestern California... * Until noon PST Friday. * At 338 AM PST, Doppler radar and automated rain gauges indicated areas of heavy rain re-developing and becoming persistent over the warned area. The expected rainfall rate is 0.25 to 1 inch per hour. Flash flooding is ongoing or expected to begin shortly. Rock slides, mud slides, and debris flows will be possible. HAZARD...Flash flooding caused by heavy rain. Rock slides and mud slides, along with possible debris flows. SOURCE...Radar and automated gauges. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Malibu, Woodland Hills, Encino, Agoura Hills, Van Nuys, Beverly Hills, North Hollywood, Hollywood, Universal City, Burbank, Griffith Park, Topanga State Park, Pacific Palisades, Calabasas, Malibu Creek State Park, Brentwood, Interstate 405 through the Sepulveda Pass, Bel Air and Sherman Oaks.

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of Southwest California, including the following areas, Apple and Lucerne Valleys, San Bernardino County Mountains and San Bernardino and Riverside County Valleys-The Inland Empire. * WHEN...Through this afternoon. The highest rainfall rates for the Bridge Fire burn scar are expected for 6 AM to 10 AM this morning and for the Line Fire burn scar for 8 AM to noon today. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Low-water crossings may be flooded. * ADDITIONAL DETAILS... - Soils remain saturated from widespread heavy rainfall on Wednesday. A less than 6-hour period of moderate to locally heavy rainfall is expected today, mostly between 6 AM and 2 PM. Hourly rainfall rates could exceed 0.50 inch per hour for 3 to 4 hours for the Bridge Fire burn scar and Line Fire burn scar. While rainfall rates will be generally lighter than yesterday (closer to 0.3-0.6"/hr), the saturated soils and drainage banks will likely be more susceptible to flash flooding with the additional rainfall. Snow levels will generally be around 7500-8000ft for this secondary round of precipitation into Friday. - Https://www.weather.gov/safety/flood

At 200 AM PST, Doppler radar and automated rain gauges indicated heavy rain falling across the warned area. Flash flooding is ongoing or expected to begin shortly. Additional Rock slides and mud slides have been occuring and are likely to continue to occur. Rain rates of up to 1.00 inch per hour have been observed. In addition, there is moderate flooding occuring along the Ventura River at San Antonio Creek at Camp Comfort, and North Fork Matilija. Structures could be inundated. HAZARD...Life threatening flash flooding. Heavy rain producing flash flooding. Rock slides and mud slides, along with debris flows. SOURCE...Radar, rain gauge reports, and local authority reports. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. Rock slides and mud slides. Cannot rule out debris flow. Structures could be inundated. Some locations that will experience flash flooding include... Ojai, Rose Valley, Highway 33 between Wheeler Springs and Rose Valley Road, Meiners Oaks and Reyes Peak.

...DANGEROUS NIGHTTIME FLOODING ONGOING... At 157 AM PST, Doppler radar and automated rain gauges indicated heavy rain falling across the warned area. Flash flooding is ongoing or expected to begin shortly. Additional Rock slides and mud slides have been occuring and are likely to continue to occur. Rain rates of up to 1.00 inch per hour have been observed. In addition, there is moderate flooding occuring along the Ventura River at San Antonio Creek at Camp Comfort. Structures could be inundated. HAZARD...Life threatening flash flooding. Heavy rain producing flash flooding. Rock slides and mud slides, along with debris flows. SOURCE...Radar, rain gauge reports, and local authority reports. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. Rock slides and mud slides. Cannot rule out debris flow. Structures could be inundated. Some locations that will experience flash flooding include... Oxnard, Ventura, Ojai, Port Hueneme, Ventura Harbor, La Conchita, Rincon Point, Solimar Beach, Seacliff, Lake Casitas, El Rio and Silver Strand Beach.

FFWLOX The National Weather Service in Los Angeles/Oxnard has extended the * Flash Flood Warning for... East Central Ventura County in southwestern California... * Until 600 AM PST. * At 109 AM PST, Doppler radar and automated rain gauges indicated heavy rain showers producing across the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by heavy rain. Rock slides and mud slides. SOURCE...Radar and automated gauges. Rock slides and mud slides. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Fillmore, Santa Paula, Topatopa Peak and Lake Piru. This also includes The 126 corridor.

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of central California, including the following areas, Mariposa-Madera Lower Sierra, San Joaquin River Canyon, Upper San Joaquin River, Yosemite NP outside of the valley and Yosemite Valley. * WHEN...Through this afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Low-water crossings may be flooded. Storm drains and ditches may become clogged with debris. Extensive street flooding and flooding of creeks and rivers are possible. Area creeks and streams are running high and could flood with more heavy rain. * ADDITIONAL DETAILS... - http://www.weather.gov/safety/flood

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of central California, including the following areas, Bakersfield, Buena Vista, Buttonwillow - Lost Hills - I5, Caruthers - San Joaquin - Selma, Coalinga - Avenal, Delano-Wasco-Shafter, Frazier Mountain Communities, Fresno-Clovis, Fresno-Tulare Foothills, Fresno-Tulare Lower Sierra, Grant Grove Area, Grapevine, Hanford - Corcoran - Lemoore, Indian Wells Valley, Kaiser to Rodgers Ridge, Kern River Valley, Kings Canyon NP, Los Banos - Dos Palos, Mariposa Madera Foothills, Merced - Madera - Mendota, Mojave Desert, Mojave Desert Slopes, Piute Walker Basin, Planada - Le Grand - Snelling, Sequoia NP, South End San Joaquin Valley, South End Sierra Foothills, South End of the Lower Sierra, South End of the Upper Sierra, Southeast San Joaquin Valley, Tehachapi, Visalia - Porterville - Reedley, West Side Mountains South of 198, West Side Mountains north of 198 and West Side of Fresno and Kings Counties. * WHEN...Through this afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded. Storm drains and ditches may become clogged with debris. Extensive street flooding and flooding of creeks and rivers are possible. Area creeks and streams are running high and could flood with more heavy rain. * ADDITIONAL DETAILS... - http://www.weather.gov/safety/flood

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of northern California, including the following areas, Sacramento Valley, northern San Joaquin Valley, Delta region, and the foothills of the Sierra Nevada. * WHEN...Through Friday afternoon. * IMPACTS...Excessive runoff will result in rises along area rivers, creeks, streams. Small streams and creeks may rise out of their banks. Flooding may occur in low-lying, poor drainage, and urban areas. Mudslides and rockslides may occur in mountain and foothill areas. * ADDITIONAL DETAILS... - Periods of moderate to heavy rain are forecast into Friday. Debris flows are not expected over recent burn scars in northern California, but do anticipate enhanced runoff in/below scars. - http://www.weather.gov/safety/flood

* WHAT...Significant and widespread flooding caused by excessive rainfall will be likely, including rock slides, mud slides, and debris flows. * WHERE...The following counties... Los Angeles. Ventura. Santa Barbara. San Luis Obispo. * WHEN...Through Friday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Mud and debris flows will be possible across foothill and mountain areas, including recent burn scars. * ADDITIONAL DETAILS... - This prolonged strong Atmospheric River storm system will bring periods of heavy rain through late this week. Potential flooding impacts include the threat of significant and widespread urban roadway flooding, a high risk of major rock and mud slides, and rapid rises in creeks, streams, and rivers which will likely lead to swift water rescues. The recent burn scars will be at risk for debris flows, possibly damaging. These flooding impacts will likely lead to significant travel delays and road closures during this busy holiday travel period. - http://www.weather.gov/safety/flood

* WHAT...Flooding caused by excessive rainfall continues to be possible from multiple lines of showers and thunderstorms, strong at times, moving across the area. * WHERE...San Francisco County, San Mateo Peninsula, East Bay, South Bay, and Central Coast * WHEN...Through Friday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Low water crossings may become flooded. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Numerous lines of showers and thunderstorms will move across the Bay Area and Central Coast through Friday evening. An additional 1-2" of rain is expected across the interior with locally higher totals between 2-3" across the Santa Cruz Mountains and up to 3" across the Santa Lucia Range. Flooding potential will increase with each successive round of rain. Sharp rises in smaller creeks and streams are expected with at least some potential for minor flooding in mainstream rivers. - http://www.weather.gov/safety/flood

* WHAT...Flooding caused by excessive rainfall continues to be possible from multiple lines of showers and thunderstorms, strong at times, moving across the area. * WHERE...The Northern San Francisco Bay Area (Napa, Sonoma, and Marin counties). * WHEN...Through Friday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Low water crossings may become flooded. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Multiple rounds of moderate to heavy rainfall are expected across the North Bay through Friday evening. An additional 2-4" is possible over the North Bay Mountains and 1-3" over the North Bay Valleys by Friday. Nuisance flooding will increase through Friday with rises in smaller creeks and minor flooding along some of the mainstream rivers (Russian River, Napa River). Debris flows are possible particularly for the Pickett Burn Scar. - http://www.weather.gov/safety/flood

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Del Norte County, Humboldt County, Trinity County, Mendocino County, and Lake County. * WHEN...Through Friday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Area creeks and streams are running high and could flood with more heavy rain. * ADDITIONAL DETAILS... - Additional rounds of heavy rain expected through Friday night. An additional 3-6, locally up to 9 inches of total rain is possible through Friday. There will be breaks in the heavy precipitation, but heavy rain falling on already saturated ground will promote flooding impacts. - http://www.weather.gov/safety/flood