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‘Atmospheric river’ warning in place with 8 million people on winter warning as it goes 53 million after Thanksgiving weekend

MILLIONS of Americans have been warned of winter weather as ‘atmospheric rivers’ threaten to engulf Washington again.

Waves weather conditions are set to cause chaos for the 53 million people traveling over Thanksgiving weekend.

The Pacific Northwest is set to experience more downpours shortly after surviving severe flooding

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The Pacific Northwest is set to experience more downpours shortly after surviving severe floodingCredit: AP
Forecasters warn atmospheric river will dump inches of rain and could spark travel chaos

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Forecasters warn atmospheric river will dump inches of rain and could spark travel chaosCredit: WeatherBell

Forecasters have warned up to 3 inches of rain could fall in some areas, which are still recovering from a bout of severe weather earlier this month.

They predict this atmospheric river – an enormous amount of moisture that extends across the Pacific Ocean and into the Northwest – could cause further flooding as heavy rains cause the rivers to rise.

“We’re expecting rivers to rise and possibly flooding in some locations,” explains Gary Schneider, a meteorologist at the National Weather Service’s office in Seattle.

Locals in Sumas and Everson in northwest Washington – both of which suffered significant damage in the previous storm – were asked to voluntarily evacuate Saturday night.

An emergency warning said road closures in the area could begin as early as Sunday morning.

Millions of dollars in damage are still being assessed from previous flooding in the area and the bill could soar even higher after this weekend’s weather.

This past flood closed the US-Canada border in Sumas and three bridges in Bellingham, with landslides blocking Interstate 5 south of Bellingham.

Schneider continued: “It’s still going to be a pretty good downpour, but [the flooding earlier this month] is a historical event. So we don’t expect that to happen again. “

This atmospheric river event shouldn’t be “severe,” he said.

Since 8 million people in the Pacific Northwest are placed on a weather alert, the Centers for Western Weather and Water (CW3E) has classified a Category 4 atmospheric river as “mostly hazardous but also beneficial”. .

Heavy rain could aid drought conditions and fill reservoirs, after Extreme temperatures announced as the leading cause of weather-related deaths in the US.

But the conditions still have the potential to devastate the millions returning from Thanksgiving this weekend.

The warmer temperatures brought by atmospheric rivers will also melt snow in higher regions, which can increase the risk of flooding even more when combined with heavy rain.

We are expecting rivers to rise and possible flooding in some locations.

Gary SchneiderForecaster

The stormy weather lasted through Saturday night before gradually decreasing in intensity on Sunday.

A third atmospheric river is then set to approach from the northwest on Monday evening and will only ease on Wednesday.

CW3E estimates upcoming rivers to score a Level 2 out of 5 on its rating scale, assessed by “integrated steam transport”.

They warn: “Due to the expected high freezing levels and wet soil conditions due to many [atmospheric rivers] During the period from 10 to 16 November, a large part of the precipitation can lead to runoff, exacerbating [flood] impacts. “

The heaviest rain is expected to fall on the western slopes of the Coast and Cascades, while up to 6 inches of rain is expected through the mountains of northwestern Washington.

Southwest British Columbia is predicted to see 2 to 4 inches above the weather system, with a total of 6 inches possible in the mountains.

NWS Spokane adds: “There will also be an increased risk of rock slip and debris flows in steep terrain and potentially affecting rural roads and trails, including burn scars near the”.

https://www.the-sun.com/news/4159685/atmospheric-river-alert-issued-winter-warning-travel-thanksgiving-weekend/ ‘Atmospheric river’ warning in place with 8 million people on winter warning as it goes 53 million after Thanksgiving weekend

DevanCole

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