Heavy rains and snow: two winter storms will collapse in the south-west of the USA

The western and southwestern US are under threat of heavy rain or snow as two powerful snow storms combine in the southwest.

Фото: Depositphotos

The biggest threat from the combination of two severe weather systems is flash and severe flooding that could affect areas from Southern California to Arizona, Nevada and into southern Utah. Writes about this ABC News.

On the afternoon of Tuesday, November 19, a southern storm will push tropical moisture southwest, causing heavy rain and possible flash floods from San Diego to Phoenix and Tucson.

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Photo: twitter.com/NWS

Photo: twitter.com/NWS

That counter-clockwise rotating system pushing into the desert southwest are the remnants of Tropical Storm Raymond; poised to bring heavy rain and potential flash flooding to the area starting tonight and lasting into early Thursday morning for some. pic.twitter.com/BfVoyE7dYq

- National Weather Service (@NWS) November 19, 2019

Meanwhile, a northern storm system will spread snow over the northern Rocky Mountains.

By noon and evening on Wednesday, November 20, the two storms will merge into one large storm system, which extends from the Plains to the southwest, bringing snow to the Rocky Mountains and the upper Midwest and heavy rain from San Diego to the Plains.

The southwest is on storm alert as millions are bracing for flash flooding. @RobMarciano has the details. https://t.co/MiAZheteVz pic.twitter.com/ZV0OgyjWUf

- Good Morning America (@GMA) November 19, 2019

This will be the first significant winter storm for Southern California and Southern Nevada. In Arizona, three inches (7,6 cm) of rain are possible, which can cause a flash flood.

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Photo: twitter.com/FEMARegion9

Snow can fall in the mountains north of Las Vegas from 1 to 2 feet (30-60 cm).

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