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A significant storm is bringing early-season snow to the western US this weekend



CNN

A significant storm system is bringing early-season snow, heavy rain and extreme thunderstorms to the US this weekend and into early subsequent week.

The storm begins within the western US this weekend, bringing with it the primary important snowfall of the season to the Intermountain West.

“The stretch of unusually heat and dry October situations will come to an abrupt finish at the moment as a strong chilly entrance brings wind, rain, important mountain snow, and far colder temperatures with a tough freeze,” the Nationwide Climate Service in Salt Lake Metropolis mentioned Saturday.

Winter storm warnings and winter climate advisories are in place throughout eight western states on Saturday the place 1 to 2 toes of snow is forecast for elevations above 7,000 toes. This heavy, moist snow will end in hazardous driving situations and lowered visibility.

CNN Climate

This method has already introduced chilly air, rain and better elevation snow to the Pacific Northwest since starting on Friday, which has considerably improved the air high quality and fireplace containment throughout that area.

On Thursday, Portland, Oregon, and Seattle ranked No. 1 and No. 2 respectively for the worst air high quality among the many world’s main cities, in keeping with the web site IQAIR.

Air high quality now has considerably improved throughout the Pacific Northwest due to a powerful chilly entrance bringing latest rain and a wind shift over the past 24 hours.

In Seattle, extra rain fell on Friday (0.32”) than in your complete months of August and September.

Whereas October data extra rain on common than August and September in Seattle, this summer season has been significantly patched with lower than half an inch of rain from July by September, making that interval the driest on report.

A secondary system might be shifting into the Pacific Northwest starting Monday bringing much more rain to the area.

A number of wildfires throughout the area have additionally been contained over the past 24 hours. On Thursday the entire massive, energetic wildfire depend throughout the US was over 50, however as of Saturday morning that quantity has dropped to 30.

For a lot of the western US excessive winds may also be a priority as this main storm system progresses eastward. That signifies that earlier than any rain or snow arrives winds might improve the potential for fireplace unfold and blowing mud.

“The gentle and dry situations partnered with the excessive winds may also create fireplace climate issues,” the Nationwide Climate Service in Denver mentioned. “Blowing mud was added to the forecast grids to the east and south of a line from Denver to Sterling, [Colorado].”

Ten states are beneath excessive wind watches and warnings on Saturday the place winds might like as excessive as 75 mph.

Clashing air plenty – chilly air settling throughout the West and heat air within the East – may also present the substances for extreme storms throughout the Midwest and Central Plains on Sunday.

Over 10 million individuals throughout the central US and Midwest are beneath the menace for extreme storms on Sunday. A Degree 2 out of 5 threat for extreme storms is in place and consists of Omaha and Lincoln in Nebraska and Sioux Metropolis in Iowa. A Degree 1 threat can also be in place and consists of Minneapolis, Kansas Metropolis and Des Moines.

weather severe storm outlook sunday 10222022

CNN Climate

These extreme thunderstorms might be able to producing massive hail and damaging gusts Sunday night into early Monday. Whereas tornadoes is not going to be the primary menace, there may be nonetheless a low risk for one or two on this area.

The rain, nevertheless, might be useful for central US states comparable to Oklahoma, Texas, Arkansas, Missouri and Kansas, which have been experiencing worsening drought situations over the past a number of weeks.

“Widespread useful rainfall is forecast Monday by Tuesday throughout the area. Common quantities of 1 to three inches with domestically larger quantities are presently forecast,” mentioned the NWS workplace in Tulsa, Oklahoma.

A hundred percent of the state of Oklahoma is beneath drought situations with Tulsa presently within the excessive class.

A Degree 2 out 4 for threat for extreme rainfall was issued for parts of Oklahoma, Arkansas, southwestern Missouri and northeastern Texas on Monday the place flash flooding might be potential.

For the reason that space has been so dry, “the expectation is that the rainfall ought to usually be useful quite than problematic,” the Climate Prediction Middle additionally famous.

The heavy rainfall may also be welcome throughout the Mississippi River Basin beginning Monday, which is coping with traditionally low water ranges over the past a number of weeks.

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