Bomb cyclone

Southern California will see heavy rain, strong winds, hazardous surf along the coast and the potential for flooding, too, especially from Los Angeles northward ...

“Of course, timing and details of subsequent systems will be subject to change. “Our snowpack is actually off to one of its best starts in the past 40 years,” Sean de Guzman, manager of the department’s snow surveys and water supply forecasting unit, said during the survey. “The significant Sierra snowpack is good news but unfortunately these same storms are bringing flooding to parts of California,” Department of Water Resources Director Karla Nemeth said in a statement. At least three additional atmospheric rivers are expected to drench the state in the next week or so — one over the weekend, one Monday into Tuesday, and another late next week. Around Sacramento and California’s Central Valley, the brunt of the storm is predicted Wednesday night into early Thursday, when the Weather Service expects flooding in creeks, streams and small rivers. “We’re nowhere near that yet and we’re probably not headed there, but this is definitely one of the higher-impact wet periods we’ve seen in recent years,” Swain said. In the highest terrain, the heavy rain will transition to up to 2 to 4 feet of heavy snow. Strong to severe thunderstorms could be in the offing as well, in addition to 2 to 4 inches of rain in the lowlands and more in the mountains. That’s when winds will increase, with gusts of over 60 mph possible at the shoreline, and 45 mph or greater likely inland. [over 80 mph on the ridgetops](https://twitter.com/NWSEureka/status/1610690241341587458) of coastal mountains. On Wednesday afternoon, the front was just starting to come ashore along the coast of far Northern California. The already saturated soils will make renewed flooding occur more quickly, and make it easier for trees to be uprooted.

The powerful system was seen "undergoing bombogenesis" off California's coast, the NWS office in Sacramento said, referring to its rapid intensification.

In 2017, one of the storms [toppled](https://www.npr.org/sections/thetwo-way/2017/01/09/508919216/iconic-sequoia-tunnel-tree-brought-down-by-california-storm) the legendary "Pioneer Cabin Tree" sequoia in Calaveras Big Trees State Park. "The most intense part of this weather event will occur later this evening and last through noon Thursday," the NWS office in Los Angeles said. [NPR has reported](https://www.npr.org/sections/thetwo-way/2017/02/20/515838078/new-research-shows-how-atmospheric-rivers-wreak-havoc-around-the-globe). To people asking, "Where's the storm?" Forecasters are urging people to show particular care in areas where fires recently burned vegetation, citing the heightened risk of flash flooding and mudslides. But they also predicted it would move slowly; as of late Wednesday morning, the system was still approaching the West Coast. What is a "Bomb Cyclone"? [Los Angeles](https://www.weather.gov/wrh/TextProduct?product=afdlox) to [Eureka, Calif.,](https://www.weather.gov/wrh/TextProduct?product=afdeka) and [Medford](https://www.weather.gov/wrh/TextProduct?product=afdmfr) and [Portland, Ore.,](https://www.weather.gov/wrh/TextProduct?product=afdpqr) alerted people to the threat of damaging winds, with peak gusts expected to top 60 and 70 mph in some areas. As California is poised to absorb its third hit from an atmospheric river since Dec. [NWS office in Sacramento said on Wednesday](https://twitter.com/NWSSacramento/status/1610691574895382528), referring to the rapid intensification of a [midlatitude cyclone](https://glossary.ametsoc.org/wiki/Bomb). "We anticipate that this may be one of the most challenging and impactful series of storms to touch down in California in the last five years," said Nancy Ward, the new director of the California Governor's Office of Emergency Services, at a 26, the National Weather Service is warning people to prepare for a major storm with high winds, snow, and "heavy to excessive rainfall, flooding with debris flows and landslides."

A “bomb cyclone” goes by many names, among them, “explosive cyclogenesis,” a “weather bomb,” “explosive development,” or the less menacing, “bombogenesis.”

The National Weather Service is warning Californians Wednesday of a powerful atmospheric river set to bring flooding, mud slides, wind gusts topping 50 mph ...

The strongest winds will be during the cold frontal passage late Wednesday afternoon through early Thursday morning.” “The impacts will include widespread flooding, roads washing out, hillside collapsing, trees down, widespread power outages, immediate disruption to commerce and the worst of all, likely loss of human life.” [Flood Watches](https://www.kron4.com/news/bay-area/flood-watch-extended-to-entire-bay-area-warning-includes-threat-to-lives/) and High Wind Warnings that will be in effect between 4 a.m. Wind gusts are forecast to blow between 20 and 70 mph. “The storm will rage across the entire Bay Area. The brunt of the storm will pummel the San Francisco Bay Area on Wednesday.

A “bomb cyclone” goes by many names, among them, “explosive cyclogenesis,” a “weather bomb,” “explosive development,” or the less menacing, “bombogenesis.”

Heavy rain and strong winds began to lash central and southern California Wednesday evening as a powerful 'bomb cyclone' washed ashore.

At least two people have been killed during a powerful bomb cyclone that has been bringing heavy rain and high winds to California, and dramatic videos and ...

Winds gusts over 35 mph have been blasting the San Francisco Bay Area as the bomb cyclone continues to impact the region Thursday. The Santa Rosa Fire Department said in a Facebook post that emergency crews have been busy since Wednesday night responding to numerous storm-related incidents across the city. SAN FRANCISCO, CA - JANUARY 3: San Franciscans lined up with their cars and rush to get sandbags outside of the Department of Public Works (DPW) on January 3, 2023 ahead of tomorrow's rainstorm in San Francisco, California, United States. Workers build a flood protection barrier at the entrance to a business in the Mission District of San Francisco, California, US, on Tuesday, Jan. While California tries to clean up from floods and mudslides that killed at least one person over the weekend, the next in a series of atmospheric rivers is bearing down on the most populous US state for later this week. Newsom said the state's storm response offices are also at their highest emergency level. A worker builds a flood protection barrier at the entrance to a business in the Mission District of San Francisco, California, US, on Tuesday, Jan. - A bomb cyclone smashed into California on January 4, 2023, bringing powerful winds and torrential rain that was expected to cause flooding in areas already saturated by consecutive storms. A damaged Valero gas station creaks in the wind during a massive "bomb cyclone" rain storm in South San Francisco, California on January 4, 2023. Drivers barrel into standing water on Interstate 101 in San Francisco, California on January 4, 2023. Some forecasters are suggesting it will become one of the most impactful storms to strike the state in years. (Melina Mara/The Washington Post)

Forecasters are also warning of dangerous thunderstorms Thursday, which could drop several inches of rain in a short amount of time. National Weather Service.

Numerous weather alerts were in effect Thursday, including a Winter Storm Warning, High Surf Advisory and a High Wind Warning. In fact, the surf could reach the ...

Meanwhile, it stayed relatively dry in the Antelope Valley with [Lancaster](https://www.foxla.com/tag/us/ca/los-angeles-county/lancaster) getting just .05 inches. In Ventura County, the brunt of the storm passed by mid-day. [the surf ](https://www.foxla.com/news/bomb-cyclone-high-surf-weather-alerts-california)could reach the highest it's been in 15 years. Visitors packed up and moved out of the Ventura Beach RV Resort after an evacuation warning was issued along the coast. The burn scar area is prone to flooding, and by Thursday afternoon, residents were cleaning up mud and debris. [Small child, teen driver, others killed across Northern California during deadly storm](https://www.foxla.com/news/small-child-teen-driver-others-killed-across-northern-california-during-deadly-storm) [Gov. Caltrans announced the full closure of Topanga Canyon Blvd. A high surf warning was issued for the LA Coast and will be in effect till 10 a.m. in both directions from Pacific Coast Highway to Grand View Drive due to a mudslide. In terms of weather alerts, a flood watch was in effect before expiring around 6 p.m. Angelenos experienced showers and breezy conditions through the morning hours Thursday. In fact,

A deadly storm that lashed coastal California with hurricane-force winds and torrential rain is far from over.

“I’m urging folks to comply with the evacuation,” said Das Williams, first district supervisor in Santa Barbara County. Some residents were also told to flee ahead of the storm’s arrival. The road was partially flooded “due to heavy rain pummeling the area,” Fairfield police said. And in Oregon’s Squaw Peak, wind gusts reached 106 mph. Elsewhere in Grapevine Peak, Pulga and Nicasio, wind gusts exceeded 100 mph. About 35 million people, or 90% of the California population, are under a flood watch Thursday. In nearby San Francisco, “floods are inevitable,” Mayor London Breed warned Wednesday. [mudslide in 2018](https://www.cnn.com/2018/01/11/us/mudslide-slider-california/index.html) that killed 23 people as mud and boulders the size of houses plowed down the Santa Barbara hillsides, splintering more than 100 homes and rupturing a gas main, according to the state’s [Office of Emergency Services](https://news.caloes.ca.gov/montecito-mudslides-anniversary-reflections-through-images/). “We anticipate this may be the most challenging and impactful series of storms to touch down in California in the last five years,” California Director of Emergency Services Nancy Ward said. More than 130,000 homes and businesses in California were without power early Thursday – most in the northern part of the state, according to [How to stay safe and warm](https://www.cnn.com/2022/12/20/health/cold-weather-safety-advice-wellness/index.html) [What is a bomb cyclone?](https://www.cnn.com/2022/12/21/us/bomb-cyclone-xpn/index.html) [What to pack in your car to stay safe](http://www.cnn.com/travel/article/car-tips-winter-weather-wellness/index.html) [Track the storm](https://www.cnn.com/interactive/storm-tracker/) [CNN lite site](http://lite.cnn.com/en) “It’s coming down hard and it’s not letting up any time soon,” she said.

SACRAMENTO COUNTY, Calif. -- There is a massive storm slamming the west coast Thursday, with dangerous winds and a firehose of rain that has no place to go.

A lot of the same scenarios happened this time that we had a long time ago," Occidental Fire Chief Ron Lunardi said. "This may be one of the most challenging and impactful series of storms to touch down in California in the last five years," said Nancy Ward, director of the California governor's office of emergency services. -- There is a massive storm slamming the west coast Thursday, with dangerous winds and a firehose of rain that has no place to go.