The Latest on storms hitting the West (all times local):

8:10 a.m.

Classes have been canceled in seven school districts in San Diego County following the intense storm that hit California.

The county’s Office of Education cites power outages, flooding, road closures and dangerous travel conditions as reasons for Friday’s closures.

The atmospheric river weather phenomenon that infused the storm with Pacific Ocean moisture stretching almost to Hawaii has moved on to Arizona but its effects continue in California.

The National Weather Service says the atmospheric river was a Category 3 on the new five-level scale created by the Scripps Institution of Oceanography at the University of California, San Diego.

The service says a measure of total atmospheric moisture over San Diego Thursday morning was a record for the fall-winter-spring season.

The Palomar astronomical observatory in north San Diego County recorded 10.1 inches (25.6 centimeters) of rain, its wettest day ever.

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7:30 a.m.

Scattered showers and snow are expected for an already soaked California, prompting authorities to issue a flood warning for coastal areas and a winter storm warning for mountainous regions.

Officials say Interstate 80 in the Sierra Nevada is closed Friday from the small community of Colfax to the Nevada border because of whiteout conditions. They say dangerous travel conditions will continue through early Sunday.

The area is expected to receive at least 3 feet (0.9 meters) of new snow.

In the San Francisco Bay Area, the westbound lanes of Highway 36 in the city of Novato were closed after a levee breached and flooded it. That complicated the commute for thousands of motorists.

Officials issued a flood warning lasting through Saturday for the community of Guerneville north of San Francisco because the Russian River surpassed flood stage overnight.

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12:00 a.m.

Authorities warn that mudslides are still possible even after a damaging storm moved through California.

April Newman, spokeswoman for Riverside County Fire Department, says crews will continue damage assessments Friday.

The powerful system unleashed rain, snow and wind across the U.S. West into Wyoming and Colorado.

In California, roads were washed away, people were trapped in rising floodwaters and debris flows destroyed homes. At least two deaths were reported: a man who was paddle-boarding down a surging storm channel in Escondido and a woman who suffered a heart attack while being rescued from rising waters in Corona.

Some evacuation warnings remain in place for neighborhoods near wildfire burn areas southeast of Los Angeles.

Drake Road is flooded by the Russian River at the Pee Wee Golf and Arcade of Guerneville, Calif., Thursday, Feb. (Kent Porter/The Press Democrat via AP)
Drake Road is flooded by the Russian River at the Pee Wee Golf and Arcade of Guerneville, Calif., Thursday, Feb. (Kent Porter/The Press Democrat via AP)
Forestvillle Fire Protection District firefighters Mike Pierson, left, and Eric Gramola rescue a counselor from the Sonoma County Juvenile Probation Camp off Trenton Healdsburg Road in Forestville, Calif. (Kent Porter/The Press Democrat via AP)
Forestvillle Fire Protection District firefighters Mike Pierson, left, and Eric Gramola rescue a counselor from the Sonoma County Juvenile Probation Camp off Trenton Healdsburg Road in Forestville, Calif. (Kent Porter/The Press Democrat via AP)
The Mojave River floods near the Deep Creek Spillway and Lake Arrowhead road in Hesperia, Calif. on Thursday Feb. (James Quigg/The Daily Press via AP)
The Mojave River floods near the Deep Creek Spillway and Lake Arrowhead road in Hesperia, Calif. on Thursday Feb. (James Quigg/The Daily Press via AP)
This Feb. 14, 2019, photo released by Caltrans District 3 shows a 7-mile back up on the South bound Interstate 5, as it reopens to traffic in Maxwell in Colusa County, Calif. (Caltrans District 3 via AP)
This Feb. 14, 2019, photo released by Caltrans District 3 shows a 7-mile back up on the South bound Interstate 5, as it reopens to traffic in Maxwell in Colusa County, Calif. (Caltrans District 3 via AP)
Aldo Cabrera, of Forestville, Calif., photographs the sunset at Wholer Road in Forestville, Calif., as the Russian River and Mark West Creek floods vineyards, Thursday, Feb. (Kent Porter/The Press Democrat via AP)
Aldo Cabrera, of Forestville, Calif., photographs the sunset at Wholer Road in Forestville, Calif., as the Russian River and Mark West Creek floods vineyards, Thursday, Feb. (Kent Porter/The Press Democrat via AP)
The Mojave River floods near the Deep Creek area as a winter storm passes through Hesperia, Calif., Thursday Feb. (James Quigg/The Daily Press via AP)
The Mojave River floods near the Deep Creek area as a winter storm passes through Hesperia, Calif., Thursday Feb. (James Quigg/The Daily Press via AP)
A San Bernardino County Fire swift rescue team rescues people stranded on an island in the rain swollen Santa Ana River bed Thursday, Feb. (Will Lester/The Orange County Register via AP)
A San Bernardino County Fire swift rescue team rescues people stranded on an island in the rain swollen Santa Ana River bed Thursday, Feb. (Will Lester/The Orange County Register via AP)
The Mojave River floods over Rock Springs road in Hesperia, Calif. on Thursday, Feb. 14, 2019. The road was closed due to flooding. (James Quigg/The Daily Press via AP)
The Mojave River floods over Rock Springs road in Hesperia, Calif. on Thursday, Feb. 14, 2019. The road was closed due to flooding. (James Quigg/The Daily Press via AP)
This photo released by Caltrans District 8 shows damage to Highway 243 near Lake Fulmor, Calif., Thursday, Feb. (Caltrans District 8 via AP)
This photo released by Caltrans District 8 shows damage to Highway 243 near Lake Fulmor, Calif., Thursday, Feb. (Caltrans District 8 via AP)
Numerous flood rescues were reported in areas east of Los Angeles as heavy rain pounded California on Thursday. (Feb. 15)
Numerous flood rescues were reported in areas east of Los Angeles as heavy rain pounded California on Thursday. (Feb. 15)