CALIFORNIA SNOW REPORT

* WHAT...Heavy snow possible. Total snow accumulations of 3 to 5 feet possible. Winds could gust as high as 50 mph. * WHERE...Sierra Nevada * WHEN...From Tuesday afternoon through Friday afternoon. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult to impossible. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes. Gusty winds could bring down tree branches.

* WHAT...Heavy snow possible. Total snow accumulations of 6 to 8 feet. Winds could gust as high as 50 mph. * WHERE...Yosemite NP outside of the valley. * WHEN...Until 4 PM PST Friday. * 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 around 8,000 to 9,000 feet until Monday, then 7,000 to 8,000 feet through Tuesday, and lowering to 6,000 feet by Christmas Day.

* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Lake County in central California... * Until 1045 PM PST Sunday. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. Streams continue to rise due to excess runoff from earlier rainfall. Low-water crossings are inundated with water and may not be passable. * ADDITIONAL DETAILS... - At 348 PM PST, Doppler radar and automated rain gauges indicated heavy rain. Flooding is ongoing or expected to begin shortly in the warned area. Between 1 and 2 inches of rain have fallen. - Additional rainfall amounts of 0.5 to 1.5 inches are possible in the warned area. - Some locations that will experience flooding include... Lakeport, Middletown, Upper Lake, Clearlake, Konocti Bay, Glenhaven, Mount Konocti, Soda Bay, Seigler Springs, Loch Lomond, Adams, Ettawa Springs, Hobergs, Forest Lake, Whispering Pines, Finley, Anderson Springs, Hough Springs, Barkerville and North Lakeport. - http://www.weather.gov/safety/flood

...The Flood Warning continues for the following rivers in California... Russian River near Hopland affecting Mendocino County. For the Russian River...including Hopland...Minor flooding is forecast. * WHAT...Minor flooding is forecast. * WHERE...Russian River near Hopland. * WHEN...Until late tonight. * IMPACTS...At 15.0 feet, Flooding of Highway 175 is expected at the approaches to the Russian River bridge. Expect flooding of cropland on the right bank of river. * ADDITIONAL DETAILS... - At 2:00 PM PST Sunday the stage was 14.4 feet. - Bankfull stage is 21.0 feet. - Forecast...The river will rise above flood stage late this afternoon to 16.1 feet late this evening. It will then fall below flood stage just after midnight tonight to 5.6 feet early Tuesday morning. It will rise above flood stage again late Tuesday evening to 16.5 feet early Wednesday morning. It will then fall below flood stage again late Wednesday morning to 11.6 feet Wednesday evening. It will rise above flood stage again Thursday morning to 15.8 feet Thursday afternoon. It will then fall below flood stage again late Thursday evening. - Flood stage is 15.0 feet. - Flood History...This crest compares to a previous crest of 16.5 feet on 01/14/2024. - http://www.weather.gov/safety/flood

...The National Weather Service in Eureka has issued a Flood Warning for the following rivers in California... South Fork Eel River Near Miranda affecting Humboldt County. For the Eel River...including Miranda...Minor flooding is forecast. * WHAT...Minor flooding is forecast. * WHERE...South Fork Eel River near Miranda. * WHEN...Until this evening. * IMPACTS...At 33.0 feet, Flooding of portions of the Avenue of the Giants is likely in the vicinity of Sylvandale, and the Myers Flat and Redwood Giants Trailer Park. Flooding is also possible near Weott. * ADDITIONAL DETAILS... - At 2:00 PM PST Sunday the stage was 31.7 feet. - Bankfull stage is 33.0 feet. - Forecast...The river will rise above flood stage to 33.1 feet late this afternoon. It will then fall below flood stage this evening to 13.4 feet early Tuesday afternoon. It will rise to 20.5 feet late Wednesday morning. It will then fall again and remain below flood stage. - Flood stage is 33.0 feet. - Flood History...This crest compares to a previous crest of 32.9 feet on 01/04/1966. - http://www.weather.gov/safety/flood

...The Flood Warning continues for the following rivers in California... Eel River at Fernbridge affecting Humboldt County. For the Eel River...including Fernbridge, Scotia, Bridgeville, Fort Seward, Miranda...Moderate flooding is forecast. * WHAT...Moderate flooding is forecast. * WHERE...Eel River at Fernbridge. * WHEN...From this evening to Monday evening. * IMPACTS...At 22.0 feet, The western half of the Eel Delta may be completely flooded, especially if at or above this level for an extended period of time. This includes areas northwest of Loleta and Cannibal Island Road. A Special Action Advisory is being issued to all owners of livestock in low-lying areas of the Eel River Delta. Owners of livestock should take appropriate action to protect their animals. At 24.0 feet, Minor flooding of Highway 211 to Ferndale south of Fernbridge. Much of the Eel Delta may be flooded, including areas northwest of Loleta and the western portion of Cannibal Island Road. Flooding will be enhanced for longer duration events. A Special Action Advisory is being issued to all owners of livestock in all low-lying areas adjacent to the Eel River. Appropriate action should be taken to protect livestock. * ADDITIONAL DETAILS... - At 2:00 PM PST Sunday the stage was 13.9 feet. - Bankfull stage is 20.0 feet. - Forecast...The river is expected to rise above flood stage this evening to a crest of 24.3 feet late tonight. It will then fall below flood stage tomorrow afternoon. - Flood stage is 20.0 feet. - Flood History...This crest compares to a previous crest of 24.2 feet on 01/05/1966. - http://www.weather.gov/safety/flood

...Forecast flooding changed from Minor to Moderate severity and increased in duration for the following rivers in California... Mad River near Arcata affecting Humboldt County. For the Mad River...including Arcata...Moderate flooding is forecast. * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Mad River near Arcata. * WHEN...Until late tonight. * IMPACTS...At 23.0 feet, Significant flooding of portions of Mad River Beach Road and adjacent farmlands is likely. May cause water to flow across roads to Tyee City. High tides and strong, onshore winds will aggravate flood impacts. At 24.0 feet, Extensive flooding along Mad River Beach Road and adjacent farmlands. Some homes along the river could be threatened. Flooding of roads to Tyee City. High tides and strong onshore winds will enhance flood impacts. * ADDITIONAL DETAILS... - At 2:00 PM PST Sunday the stage was 23.9 feet. - Bankfull stage is 22.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 2:00 PM PST Sunday was 23.9 feet. - Forecast...The river will rise to 25.0 feet late this afternoon. It will then fall below flood stage this evening to 13.9 feet early tomorrow afternoon. It will rise to 14.5 feet tomorrow evening. It will then fall to 13.1 feet early Tuesday afternoon. It will rise to 16.1 feet late Wednesday morning. It will then fall again and remain below flood stage. - Flood stage is 22.0 feet. - Flood History...This crest compares to a previous crest of 24.9 feet on 02/08/1960. - http://www.weather.gov/safety/flood

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Northern San Francisco Bay Area (Napa, Sonoma, and Marin counties). * WHEN...Through Monday 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 crossing may become flooded. Standing water is likely in urban areas. * ADDITIONAL DETAILS... - Moderate to heavy rain associated with an atmospheric river will impact the region. 2-3" of rain is expected in the valleys during the watch period, with up to 6" in the coastal mountains. Area rivers, streams, and creeks that are prone to flooding could see rapid rises during and after heavy rainfall. There is a slight chance for flash flooding, particularly in urban areas Sunday and Monday. Debris flows are possible particularly for the Pickett Burn Scar. - http://www.weather.gov/safety/flood

* WHAT...Flooding caused by excessive rainfall continues. * WHERE...Southwestern Humboldt County in northwestern California... * Until 645 PM PST. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. Numerous roads remain closed due to flooding. Streams continue to rise due to excess runoff from earlier rainfall. Low-water crossings are inundated with water and may not be passable. There will be an increased risk of rock and land slides along roadways. * ADDITIONAL DETAILS... - At 1258 PM PST, gauge reports indicated heavy rain. Flooding is already occurring in the warned area. Between 4 and 6.1 inches of rain have fallen. - Some locations that will experience flooding include... Honeydew, Shelter Cove, Petrolia, Redway, Bull Creek, Ettersburg, Briceland and Capetown. - http://www.weather.gov/safety/flood

A series of warm atmospheric rivers will bring moderate to heavy rain to the Valley, foothills, and mountains the week of Christmas. The prolonged period of rain will bring the risk of flooding to the Sacramento Valley, northern San Joaquin Valley, northern Sierra Nevada and adjacent foothills, as well as the Coastal Range. * WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of northern California, including the following areas, the Sacramento Valley, northern San Joaquin Valley, Delta region, Sierra Nevada and adjacent foothills, and Coastal Range. * 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 the week of Christmas. Debris flows are not expected over recent burn scars, but do anticipate enhanced runoff in/below scars. - http://www.weather.gov/safety/flood

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of southwest California, including the following area, Malibu Coast. * WHEN...From Tuesday afternoon through Wednesday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - A moderate to strong atmospheric river will impact Southwestern California Tuesday through Wednesday. Heavy rainfall is expected with high rainfall rates. So, widespread urban flooding will be possible along with mud and debris flows across all foothills and mountain areas. - http://www.weather.gov/safety/flood

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...For San Luis Obispo, Santa Barbara, Ventura and Los Angeles counties. * WHEN...From Tuesday afternoon through Wednesday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - A moderate to strong atmospheric river will impact Southwestern California Tuesday through Wednesday. Heavy rainfall is expected with high rainfall rates. So, widespread urban flooding will be possible along with mud and debris flows across all foothills and mountain areas. - http://www.weather.gov/safety/flood

* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Southern Humboldt County in northwestern California... Southwestern Trinity County in northwestern California... * Until 645 PM PST Sunday. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. * ADDITIONAL DETAILS... - At 1203 PM PST, Doppler radar and automated rain gauges indicated heavy rain. Flooding is already occurring in the warned area. Between 2.5 and 4 inches of rain have fallen. - Additional rainfall amounts of 0.5 to 1 inch are possible in the warned area. - Some locations that will experience flooding include... Grizzly Creek Redwoods State Park, Garberville, Richardson Grove State Park, Fortuna, Rio Dell, Bridgeville, Weott, Myers Flat, Dinsmore, Pepperwood, Alderpoint, Redway, Carlotta, Scotia, Richardson Grove, Ruth, Ferndale, Miranda, Blocksburg and Shively. - 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...From Tuesday afternoon through Friday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded. * 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, Mariposa-Madera Lower Sierra, San Joaquin River Canyon, Upper San Joaquin River, Yosemite NP outside of the valley and Yosemite Valley. * WHEN...Through Friday afternoon. * 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... - http://www.weather.gov/safety/flood

* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...A portion of Southwest California, including the following areas, Apple and Lucerne Valleys, Coachella Valley, Orange County Coastal Areas, Orange County Inland Areas, Riverside County Mountains, San Bernardino County Mountains, San Bernardino and Riverside County Valleys-The Inland Empire, San Gorgonio Pass near Banning and Santa Ana Mountains and Foothills. * WHEN...From Tuesday afternoon through Wednesday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Mud and debris flow are possible near and in burn scars, including the Airport, Bridge and Line burn scars. * ADDITIONAL DETAILS... - An Atmospheric River is expected to bring widespread moderate to heavy rain to the area late Tuesday through Wednesday. Showers could begin to develop as early as Tuesday evening, especially in the mountains. Heaviest most widespread rain is expected Wednesday morning continuing through the afternoon in the Coachella Valley and in the mountains. Peak rainfall rates of 0.50 to 1 inch per hour are expected. There is a potential for locally heavier hourly rainfall rates to develop with convection embedded in the main rain band or in thunderstorms after the main band passes. Scattered locally heavy showers could continue into Thursday but impacts from any additional rain are expected to be more localized. -Snow levels are expected to remain above 8000 ft during period of heaviest precipitation bringing a heightened risk of mud slides, debris flow, and areas of flash flooding in the San Bernardino county mountains. - https://www.weather.gov/safety/flood

* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...A portion of Southwest California, including the following areas, San Diego County Coastal Areas, San Diego County Deserts, San Diego County Mountains and San Diego County Valleys. * WHEN...From late Tuesday night through late Wednesday night. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - An Atmospheric River is expected to bring widespread moderate to heavy rain to the area Wednesday. Heaviest most widespread rain is expected late Wednesday morning continuing through into the evening for the mountains and deserts. Peak rainfall rates of 0.50 to 1 inch per hour are expected. Scattered locally heavy showers could continue into Thursday but impacts from any additional rain are expected to be more localized. - https://www.weather.gov/safety/flood

* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Western Lake County in central California... Mendocino County in northwestern California... * Until 800 PM PST Sunday. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. Streams continue to rise due to excess runoff from earlier rainfall. Expect many areas of slow moving or standing water. * ADDITIONAL DETAILS... - At 1105 AM PST, Doppler radar indicated heavy rain. Flooding is already occurring in the warned area. Between 2 and 5 inches of rain have fallen. - Additional rainfall amounts of 0.5 to 1.5 inches are possible in the warned area. - Some locations that will experience flooding include... Ukiah, Willits, Point Arena, Laytonville, Ukiah Municipal Airport, Covelo, Upper Lake, Potter Valley, Philo, Boonville, Hopland, Rockport, Leggett, Gualala, Redwood Valley, Calpella, Dos Rios, Comptche, Talmage and Navarro. - http://www.weather.gov/safety/flood

* WHAT...Flooding caused by excessive rainfall is occurring. * WHERE...Northern Humboldt County in northwestern California... West Central Trinity County in northwestern California... * Until 730 PM PST Sunday. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. * ADDITIONAL DETAILS... - At 1034 AM PST, Local law enforcement reported flooding already occurring in the warned area. Between 2.5 and 3.5 inches of rain have fallen. - Additional rainfall amounts of 0.5 to 1 inch are possible in the warned area. - Some locations that will experience flooding include... Eureka, Arcata, Hoopa, Willow Creek, Orick, Trinidad, Maple Creek, McKinleyville, Weitchpec, Westhaven-Moonstone, Salyer, Blue Lake, Fieldbrook, Kneeland, Arcata Arpt, Freshwater, Myrtletown, Cutten, Pine Hills and Bayview. - Major flooding is occurring around Humboldt Bay, especially in Freshwater area. - http://www.weather.gov/safety/flood

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Southern Trinity County * WHEN...Through late tonight. * IMPACTS...There will be an increased risk of rock and land slides along roadways. * ADDITIONAL DETAILS... - An atmospheric river will move into northwest California through this evening. Periods of moderate to heavy rain with rates of a quarter to a half inch an hour are possible. Total rain amounts of 3-6 inches are forecast. Rises in creeks and streams are likely and could result in minor flooding impacts. Flooding may occur in poor drainage and urban areas. - http://www.weather.gov/safety/flood

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Humboldt County. * WHEN...Until 10 PM PST this evening. * IMPACTS...There will be an increased risk of rock and land slides along roadways. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - An atmospheric river will move into northwest California through this evening. Periods of moderate to heavy rain with rates of a quarter to a half inch an hour are possible. Total rain amounts of 2-5 inches are forecast. Rises in creeks and streams are likely and could result in minor flooding impacts. Flooding may occur in poor drainage and urban areas. - This may include flooding on old Arcata road, Crannel Road and Elk River road among other areas that typically flood. - http://www.weather.gov/safety/flood

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of northwest California, including the following areas, Mendocino Coast, Northeastern Mendocino Interior, Northern Lake, Northwestern Mendocino Interior, Southeastern Mendocino Interior, Southern Lake and Southwestern Mendocino Interior. * WHEN...Through Monday morning. * IMPACTS...There will be an increased risk of rock and land slides along roadways. Excessive runoff may result in flooding of creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - An atmospheric river will move into northwest California through this evening. Periods of moderate to heavy rain with rates of a quarter to a half of an inch per hour are possible. Total rain amounts of 3-6 inches are forecast. Rises in creeks and streams are likely and could result in minor flooding impacts. Flooding may occur in poor drainage and urban areas. - http://www.weather.gov/safety/flood

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Del Norte County * WHEN...Until 7 PM PST this evening. * IMPACTS...There will be an increased risk of rock and land slides along roadways. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Area creeks and streams are running high and could flood with more heavy rain. * ADDITIONAL DETAILS... - A quick moving cold front will bring moderate to heavy rain to the area tonight into late Friday morning. Rainfall totals of 2-4 inches and rainfall rates up to 0.5 inches or higher an hour are possible. Saturated soils and the heavy rainfall rates will increase the risk of minor flooding impacts to low lying and urban areas. Rises in creeks and streams are likely. - http://www.weather.gov/safety/flood

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Southern Trinity County * WHEN...Until 10 PM PST this evening. * IMPACTS...There will be an increased risk of rock and land slides along roadways. 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. Area creeks and streams are running high and could flood with more heavy rain. * ADDITIONAL DETAILS... - totals of 2-4 inches and rainfall rates up to 0.5 inches or higher an hour are possible. Saturated soils and the heavy rainfall rates will increase the risk of minor flooding impacts. Rises in creeks and streams are likely. - http://www.weather.gov/safety/flood

...The Flood Watch continues for the following rivers in California... Russian River near Hopland affecting Southeastern Mendocino Interior zone. For the Russian River...including Hopland...flooding is possible. * WHAT...Flooding is possible. * WHERE...Russian River near Hopland. * WHEN...From this morning to this evening. * IMPACTS...At 15.0 feet, Flooding of Highway 175 is expected at the approaches to the Russian River bridge. Expect flooding of cropland on the right bank of river. * ADDITIONAL DETAILS... - At 11:45 PM PST Saturday the stage was 2.9 feet. - Forecast...Flood stage may be reached late this morning. - Flood stage is 15.0 feet. - http://www.weather.gov/safety/flood