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SNOW-POCALYPSE Five million Americans receive emergency warning about ‘extreme’ weather phenomenon

FIVE million Americans were subject to severe weather warnings on Tuesday after a Category 4 “extreme” weather event triggered an avalanche warning.

The Northwest Avalanche Center warned locals to stay home or risk being buried and killed by wet avalanches that can be brought by atmospheric rivers.

The rocks fell to OR-99 on Monday when the area was under flood and avalanche warnings. The road is closed but has reopened

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The rocks fell to OR-99 on Monday when the area was under flood and avalanche warnings. The road is closed but has reopenedCredit: Twitter / Canby Area Transit
The danger level is'significant' below the trailhead. A high hazard warning was issued near and above trees on the East Slope of the Washington Cascades on Tuesday

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The danger level is ‘significant’ below the trailhead. A high hazard warning was issued near and above trees on the East Slope of the Washington Cascades on TuesdayCredit: Avalanche Northwest Center
The city of Tigard, Oregon has shared images of rising water near Costco on Dartmouth Street as part of a local flood warning.

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The city of Tigard, Oregon has shared images of rising water near Costco on Dartmouth Street as part of a local flood warning.Credits: City of Tigard

These causes occur when warm air, sun, or rain cause water to escape into the packages snow.

Several rainfall records were set on Monday in the Pacific Northwest, with Astoria, Oregon experiencing downpours.

The area received 2.98 inches of rain, breaking the record of 1.4 inches set in 2013 on February 28.

As of Sunday morning, Seattle had received just one inch of rain in February, 2.5 inches below average.

But after dropping two inches on Monday alone, Seattle made up the shortfall and received three and a half inches of rain in just two days.

Washington’s Snoqualmie Pass and Stevens Pass were closed Monday as more snow is expected to hit the area along with the risk of snow melt.

Melting snow increases the risk of “wet and destructive debris” extending to the bottom of valleys and flooding.

An additional two to four inches of snow is expected Washington The Cascades area midweek and there are predictions of moderate to heavy flooding in the Skokomish, Snoqualmie, Nisqually and Cowlitz rivers as the coastal mountains of Washington and Oregon face the risk of moderate excessive rain.

Northern Oregon and coastal Washington are at risk of Category 2 excessive rainfall.

Expected to drop 3 to 6 inches within 24 hours along parts of the Washington and Oregon coastal areas.

Flood and avalanche warnings are in effect and are expected to last through the day in Idaho, Oregon, Washington and Seattle.

nation Weather Service Portland reports that the slow-moving low pressure that rotates over the North Pacific will cause a narrow band of enhanced moisture transport – also known as atmospheric rivers.

The NW Avalanche Center said very hazardous conditions would persist through Tuesday as “very large and destructive avalanches can occur naturally at these elevations.”

The hazard level is “significant” below the curve.

There was a high hazard warning near and above treetops on the East Slope of the Washington Cascades on Tuesday.

“Wind will pull snow near and on top of trees and continue to stretch older weak layers. You can cause wet avalanches large enough to bury you where the rain falls under the trees,” the NWAC warned of the East Slopes North.

Earlier, heavy snowfall prompted winter weather warnings in parts of Washington, Idaho, and Montana.

“Triggering a slip is likely and will be large enough to bury or kill you,” the Center warned of most of their forecast areas on Monday.

“Avoid walking in or under avalanche terrain.”

Due to inclement weather, Oregonians are asked not to leave their homes unless they must

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Due to inclement weather, Oregonians are asked not to leave their homes unless they mustCredits: City of Tigard

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https://www.the-sun.com/news/4798121/snow-wet-avalanche-flood-warning-pacific-northwest/ SNOW-POCALYPSE Five million Americans receive emergency warning about ‘extreme’ weather phenomenon

DevanCole

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