National Weather Service warning people to get prepared: Two atmospheric rivers targeting California

Pineapple-Express

Important Takeaways:

  • California gets slammed: More than 22 million risk flooding as Pineapple Express blasts the state with up to 10 inches of rain and 70 mph gusts: Water-covered roads snarl traffic in Los Angeles, San Diego
  • All lanes of the 710 Freeway at Pacific Coast Highway in Long Beach have been closed, with numerous streets and highways inundated Thursday morning
  • The Golden State is expected to receive as much as ten inches of rain and upper-elevation mountain snow, coupled with winds of up to 70 mph
  • A Pineapple Express system is hitting the state, with a second wave expected over the weekend

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Monster mudslides, water rescues as storm punishes California

A man carries flowers in the rain in the flower district on Valentine's Day in Los Angeles, California, U.S., February 14, 2019. REUTERS/Lucy Nicholson

By Andrew Hay

(Reuters) – Motorists swam for their lives and residents were rescued from homes sliding downhill as the wettest winter storm of the year triggered floods and mudslides across California on Thursday.

In Sausalito, just across the Golden Gate Bridge from San Francisco, a mudslide carried away two homes and engulfed five cars, sending one woman to the hospital, Southern Marin Fire Department tweeted. Dozens of homes were evacuated in the area.

In Cabazon, about 84 miles (135 km) east of Los Angeles, two motorists swam from their vehicle and were rescued by helicopter after their car was engulfed by churning brown floodwaters, a California Department of Forestry and Fire Protection spokesman said.

“We’ve had multiple water rescues throughout the day, I think today our helicopter is up to about a dozen,” said CalFire spokesman Richard Cordova. “We haven’t seen rain like this in 10 years.”

Three Delta Air Lines passengers suffered minor injuries when severe turbulence shook a flight headed from southern California to Seattle on Wednesday, according to authorities.

The moisture-rich tropical storm, known as an atmospheric river, has lashed Northern California with rain and snow since late Tuesday. The moisture flow, nicknamed the “Pineapple Express” for its origin near Hawaii, unleashed its full force overnight.

Power lines, trees and car-sized boulders littered roads in San Diego County and flash flood warnings were in place after regions like Palomar Mountain got nearly 10 inches (25 cm) of rain, according to the National Weather Service (NWS).

WILDFIRE AREAS AT RISK

To the north, Venado, a town near San Francisco famed for its rainfall, got more than one foot of precipitation over 48 hours.

Areas, particularly at risk, were those that suffered deadly wildfires in the last two years, leaving scorched hillsides devoid of vegetation and prone to collapse.

Residents in Northern California’s Butte County – where the Camp fire killed 86 people and destroyed nearly 19,000 structures last year – were told to leave their homes over concerns a creek could overflow and flood communities.

Hundreds of people in Lake Elsinore, 56 miles east of Los Angeles, got mandatory evacuation orders on fears hillsides scorched by the 2018 Holy Fire could turn into debris flows.

To the north Redding, the town devastated by the Carr Fire in 2018, was hit with around 14 inches of snow that shut down Interstate 5 south of the Oregon border and knocked out power to thousands of customers.

A couple more feet of snow was expected to fall in the Sierra Nevada Mountains of northern California through Friday, said NWS meteorologist Hannah Chandler-Cooley in Sacramento.

(Reporting by Rich McKay; Additional reporting by Andrew Hay and Tracy Rucinski; Editing by David Gregorio and Tom Brown)

‘Pineapple Express’ storm douses California with rain, snow

Snow capped mountains are seen behind the downtown Los Angeles skyline, California, U.S., February 12, 2019. REUTERS/Lucy Nicholson

By Andrew Hay

(Reuters) – A Pacific storm system known as the “Pineapple Express” threatened to dump up to 8 inches of rain and 8 feet of snow on areas of California, raising risks of flooding and mudslides, meteorologists said on Wednesday.

“The (Pineapple) Express is no joke,” said Bob Oravec, meteorologist with the National Weather Service’s Weather Prediction Center in College Park, Maryland of the strongest weather system of the season.

The weather system, also known as an atmospheric river, gets its name from the flow of moisture that periodically heads east from waters adjacent to the Hawaiian Islands to soak the U.S. West Coast. It blanketed parts of Hawaii with snow over the weekend and is expected to drench California.

The San Francisco Bay area could be hit by flash flooding and falling trees as saturated ground gets up to 8 inches more rain and strong winds blow in, the weather service said.

“We’re talking 3 to 5 inches of rain in San Francisco and coastal areas in just the next 24 hours, and more on into Friday,” Oravec said.

To the northeast in the Sierra Nevada Mountains, passes could see between 80 and 100 inches (approximately 7 to 8 feet) of snow through Friday.

Valley areas face flood watches over fears the relatively warm Pineapple Express system could initially drench areas as high as Lake Tahoe with rain, melting snow and swelling rivers.

WILDFIRE BURN AREAS

The Central and Southern California coast can expect flash flooding and possible mudslides near recent wildfire burn areas, the NWS reported.

Oravec said that the problem is not just the amount of rain, but the fact that it will hit in a short amount of time.

“It’s going to be heavy and fast,” he said. “Debris flows and mudslides are a risk in any area scorched by the wildfires. There’s little to no vegetation to slow that water down.”

Up to 2 inches of rain was expected in the Los Angeles area between Tuesday evening and Thursday morning, the weather service said.

A string of winter storms has swelled snowpack in California to above-average levels, delighting farmers in need of water and skiers in search of powder.

(Reporting by Andrew Hay, additional reporting by Rich McKay, editing by Louise Heavens)