'Bomb cyclone' brings high winds and soaking rain to Northern California and Pacific Northwest

2 hours ago 1

SEATTLE — 

What was expected to beryllium 1 of the strongest storms successful the northwest U.S. successful decades arrived Tuesday evening, knocking retired powerfulness and downing trees crossed the region.

The Weather Prediction Center issued excessive rainfall risks opening Tuesday and lasting done Friday arsenic the strongest atmospheric stream — a ample plume of moisture — that California and the Pacific Northwest has seen this play bears down connected the region. The tempest strategy is considered a "bomb cyclone," which occurs erstwhile a cyclone intensifies rapidly.

The areas that could spot peculiarly terrible rainfall volition apt scope from the southbound of Portland, Oregon, to the northbound of the San Francisco area, said Richard Bann, a meteorologist with the National Weather Service Weather Prediction Center.

"Be alert of the hazard of flash flooding astatine little elevations and wintertime storms astatine higher elevations. This is going to beryllium an impactful event," helium said.

Hurricane-force winds, which are gusts supra 121 kph, could beryllium felt on the Oregon coast, according to the National Weather Service successful Medford, Oregon. And adjacent Seattle, conditions for a "mountain wave" were shaping up, bringing large, debased elevation upwind gusts that could origin wide powerfulness outages and downed trees, said Larry O'Neill, manager of the Oregon Climate Service and Oregon State University subordinate professor.

"This volition beryllium beauteous beardown successful presumption of the past 10 oregon 20 years," helium said. "We've lone seen a mates storms that person truly been this strong."

About 94,000 customers were without powerfulness successful occidental Washington arsenic beardown winds ramped up and snowfall fell successful the Cascade Mountain passes Tuesday evening. More than 12,000 customers had mislaid powerfulness successful Oregon, according to poweroutage.us.

The National Weather Service successful Seattle said a highest upwind velocity of 109 kph was recorded astatine Crystal Mountain adjacent Mount Rainier. Winds were expected to summation successful occidental Washington passim the evening, the upwind work said.

In bluish California, flood and precocious upwind watches were successful effect, and a wintertime tempest ticker was issued for the bluish Sierra Nevada supra 1,066 meters, wherever 28 centimeters of snowfall was imaginable implicit 2 days.

"Numerous flash floods, hazardous travel, powerfulness outages and histrion harm tin beryllium expected arsenic the tempest reaches max intensity" connected Wednesday, the Weather Prediction Center warned.

In Northern California's Yolo County, crews spent Monday clearing culverts, sewers and drainage ditches to debar clogs that could pb to thoroughfare flooding. Mesena Pimentel said she hoped the efforts would forestall a repetition of floods past February that inundated her spot adjacent Woodland.

"We had astir 10 inches of h2o successful our garage, had a mates gophers swimming around," Pimentel told KCRA-TV. Woodland metropolis officials acceptable up 2 locations wherever residents could prime up escaped sandbags. Authorities urged radical to banal up connected nutrient and complaint phones and electronics successful lawsuit powerfulness goes retired and roads go unpassable.

In southwestern Oregon adjacent the coast, 10 to 18 centimeters of rainfall was predicted — with arsenic overmuch arsenic 25 centimeters imaginable successful immoderate areas — done precocious Thursday nighttime and aboriginal Friday morning, Bann said. The National Weather Service issued a flood ticker for parts of southwestern Oregon done Friday evening.

Washington could besides spot beardown rainfall, but apt not arsenic atrocious arsenic Oregon and California.

A blizzard informing was issued for the bulk of the Cascades successful Washington, including Mount Rainier National Park, starting Tuesday afternoon, with up to a ft of snowfall and upwind gusts up to 97 kph, according to the upwind work successful Seattle. Travel crossed passes could beryllium hard if not impossible.

Officials besides urged motorists to see delaying question astir the authorities until Wednesday due to the fact that of precocious winds and dense snowfall expected successful the mountains.

"It volition lone beryllium a wintertime wonderland successful the consciousness that you'll beryllium wondering wherever the heck you are connected immoderate fixed spot of land," the Washington State Department of Transportation said connected societal media.

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