US ‘Bomb cyclone’ could break records as it slams into the West Coast, bringing 100 mph winds and blizzard conditions
Thanksgiving travel weather forecast: Big storms to create big trouble from coast to coast
Thanksgiving travel troubles are likely this week as two storms track across the nation, bringing a mix of rain, snow and wind from coast to coast. "We've got a very active pattern this week, with the potential for some travel disruptions," National Weather Service meteorologist Bob Oravec said. The first storm will dump heavy snow, as much as 6-12 inches, across portions of the western and central USA on Tuesday and into Wednesday, Oravec said.Start the day smarter. Get all the news you need in your inbox each morning.
this Thanksgiving holiday, perhaps being part of weather history will soothe the ensuing headaches?
Bearing witness to a storm that is forecast to come ashore at record strength and moving along an unprecedented track is about the only silver lining to be found in a powerful winter cyclone about to smash ashore near the California-Oregon border on Tuesday afternoon.
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As millions are getting ready to hit the road for the Thanksgiving holiday, an incoming storm could make for a messy commute for some — and ruin the Macy's Thanksgiving Day Parade for others. After an almost unseasonably warm Tuesday made for ideal early travel conditions around the tri-state, with temperatures sitting around 60 degrees for perhaps the last time in 2019, there are worse conditions on the horizon. How to Watch the 2019 Macy'sAs millions are getting ready to hit the road for the Thanksgiving holiday, an incoming storm could make for a messy commute for some — and ruin the Macy's Thanksgiving Day Parade for others.
In the forecast stretching from Tuesday through Friday are plummeting temperatures, hurricane-force gusts that could reach or exceed 100 mph in some locations, giant waves of up to 37 feet,and heavy rain in the lower elevations between San Diego and Salem.
It’ll be a big one, and the National Weather Service hasand cautionary advice in expectation of the storm system.
Despite the dangers, NWS meteorologists in the storm’s projected path couldn’t help but be a little giddy about the system’s historic nature.
Thesaid the region may experience its lowest-ever air pressure reading, with the barometer forecast to fall to approximately 975 millibars off Cape Blanco, Ore., before landfall Tuesday afternoon. The previous record, 978 mb, was set in 2010. In general, the lower the pressure, the stronger the storm.
Thanksiving weather: Storms set to unleash more snow, rain and strong winds from coast to coast
Two powerful storms are set to bring big trouble for millions of Thanksgiving travelers. The heavy snowfall that grounded hundreds of flights in Denver could soon do the same at the Minneapolis-St. Paul airport in Minnesota and dump several feet of snow on the Midwest.All while another storm will hit the West Coast with hurricane-force winds and rainfall and the California and Nevada mountains with heavy snow, promising more travel disruptions on the busiest travel days of the year. About 21 million people from the West Coast to the Great Lakes are under some kind of winter weather advisory.
This is the work of a weather phenomenon known as , which creates “bomb cyclones.” Bombogenesis occurs when a mid-latitude cyclone rapidly intensifies, as measured by the pressure at the storm’s core dropping by at least 24 millibars over 24 hours.
Forecasts show that the storm could see air pressure in its center plummet by about 40 millibars in 24 hours, easily earning the “bomb cyclone” moniker.
“Models continue to show a very deep low pressure center around 973 mb when it hits the coast, this is lower than the 975 mb low of the historic Nov 9-10 storm in 1975,” the Weather Service forecast office in Medford, Ore., said Tuesday in an online forecast discussion.
With such steep pressure gradients come whipping winds, and places from Cape Blanco southward will endure gusts in excess of 75 mph — while exposed areas and headlands are blasted with high-end Category 1 hurricane-like winds of 100 mph, warns. Areas north of the low-pressure area will see comparatively lighter winds of up to 55 mph or so out of the east. The unusual track of the storm could also bring high winds to valley areas in addition to high peaks, such as the Shasta and Rogue Valleys, the NWS noted.
Thanksgiving Weather: Canceled Flights, Snow and a ‘Bomb Cyclone’
Heavy snows, reaching 30 inches in some areas, disrupted travel across the center of the nation on Tuesday and threatened to make more trouble on Wednesday as the Thanksgiving holiday approached. Hundreds of flights were canceled, thousands of travelers were stranded at airports, and stretches of major highways were closed because of unsafe conditions and periods of poor-to-nonexistent visibility. At the same time, the Northwest was warned of a separate “bomb cyclone” storm blowing in from the Pacific Ocean that could sock that region with powerful winds and heavy precipitation.
These winds will kick up unusually large waves along the coast. “Seas will be incredibly high and confused during this stormy period with significant heights of 30-40 feet,” according to the Weather Service.
At exposed beaches along California’s North Coast, there could be breaking waves of 35 feet in the surf zone.
Storm’s track is also unique
“Rather than a deepening system moving from (southwest) to (northeast) inside 130 (west longitude), which typically bring our strongest coastal and inland windstorms … this one will be moving in from (northwest) to (southeast) as it moves onshore Tuesday evening,” forecasters said Monday afternoon.
Frigid temperatures are on tap, with a chilly Thanksgiving expected along the West Coast. While residents of usually gorgeous Pasadena, Calif., are tucking into the Thanksgiving turkey Thursday, the mercury outside will be more than 15 degrees below average, struggling to exceed the low 50s — and when the clouds clear, there should be a solid dusting of snow visible on the San Gabriel Mountains, as the snow level is forecast to drop to 3,000 feet if not lower. Mount Wilson, which overlooks the city, tops 5,700 feet.
Hundreds stranded on Interstate 5 in ‘bomb cyclone’ fallout
Hundreds of cars remained stranded Wednesday on Interstate 5 headed north from California into Oregon in the aftermath of a major storm that dumped snow and created white-out conditions on both sides of the California-Oregon border. PORTLAND, Ore. (AP) — Hundreds of cars remained stranded Wednesday on Interstate 5 headed north from California into Oregon in the aftermath of a major storm that dumped snow and created white-out conditions on both sides of the California-Oregon border.
Rain totals shouldn’t be excessive, a relief for those near fire-scorched areas, but thunderstorms are possible. The foothills of the eastern San Gabriels are predicted to get the most rainfall at 4 to 6 inches; at higher elevations, ski resorts could receive around two feet of snow. Los Angeles, Sacramento and San Francisco most likely won’t exceed 1.5 to 2 inches of precipitation.
Major winter storms along the West Coast are often connected to atmospheric rivers, which are pipelines of extraordinarily moisture-rich air that directs heavy rain and mountain snow at the West like a fire hose. It was just last winter whenfunneling tropical moisture toward the Golden State — right after the .
For this storm,— and even then, it expected to be classified as a weak atmospheric river (AR1): “While the parent cyclone associated with this event is forecast to be strong, the AR is forecast to be fast moving and of relatively low moisture content, which will result in primarily beneficial instead of hazardous rainfall.”
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