A large storm that will bring several feet of snow, heavy rain and possible tornadoes


An atmospheric river event bringing enough moisture to the West this weekend will gradually move across the country and bring dangerous weather to millions.

The major storm will begin in the west with heavy snow, gusty winds and coastal flooding, then move east, threatening potential blizzards in the Midwest and tornado to the south.

“Extreme snowfall is likely in the Sierra Mountains and Northern California,” the Weather Forecast Center said Saturday. Adding that “heavy snowfall of 3 inches per hour is expected in the Sierra Nevada, accumulating to more than 5 feet by Sunday in some areas.”

More than a dozen western states are under winter weather warnings this weekend as a powerful storm system moves through the region.

Snowfall will be measured in feet in the Sierras, Rockies and Cascades. Heavy rain will also be seen up and down the West Coast, especially in California, where there are fears of flooding through Sunday.

Ann atmospheric river is a cloud of moisture that flows in from the Pacific Ocean. Like a fire hose, it shoots moisture into an area over an extended period of time, resulting in very heavy rain or snow.

Most coastal communities will receive 1 to 3 inches of rain over the weekend, and some areas of Northern and Central California could receive a total of 3 to 5 inches. Coastal erosion and flooded roads will be the main problems.

“Additional heavy rains may lead to isolated runoff issues, particularly on recent burn scars,” he said This was announced by the Weather Forecasting Center.

Wind gusts of 80 to 100 mph are also possible in the mountain ranges on Saturday, bringing snow drifts leading to near zero visibility and difficult to impossible travel conditions.

“Gusty winds and heavy snow could bring down tree branches,” the National Weather Service office in Sacramento, Calif., said, which could lead to “near whiteout conditions at times.”

And the western US won’t be the only area affected by the storm.

“As the system moves into the plains early next week, a spring-like storm system is developing,” Chad Myers, the CNN meteorologist said. “Significant severe weather will occur in the warm air to the south and a large snow and ice event will occur in the western Great Lakes and northern plains.”

For the Northern Plains and Midwest, the blizzard threat increases as significant snow, strong winds, ice and freezing rain are possible early next week from Colorado to Wisconsin.

CNN Weather

“A winter storm expected to affect the Northern Plains overnight Monday into Thursday,” National Weather Service office in Bismarck, North Dakota said. “Difficult travel conditions are expected Monday night into Wednesday night with heavy snow, reduced visibility and blowing snow.”

Heavy snow and strong winds will be the main concerns, but freezing rain and sleet are also possible.

If winds are at least 35 miles per hour and visibility is less than a quarter mile for at least three hours, it could result in a full blown blizzard across the region.

Widespread snow accumulations across the Northern Plains and Midwest will be 4 to 8 inches, and in some places could exceed a foot by Friday next week.

“While some uncertainty remains, confidence is growing that strong winds and significant snowfall will lead to hazardous impacts across much of the Central/Northern Plains and Upper Midwest.” the forecast center said.

Slippery roads and near whiteout conditions will make travel very difficult if not impossible at times in some of these areas. Power outages will also be possible due to very strong winds.

The threat of severe storms also increases across the southern Plains and Gulf Coast region, including tornadoes, large hail and damaging winds.

“While December tornadoes are relatively uncommon compared to the spring, they are often more likely in parts of the southeast and lower Mississippi Valley, where there is often a secondary peak in the fall and winter,” Matthew Elliott, forecast center meteorologist of storms, CNN said.

A large storm that will bring several feet of snow, heavy rain and possible tornadoes

CNN Weather

The potential for a severe storm begins Monday night in Oklahoma and northern Texas, gradually spreading into Arkansas, Louisiana and Mississippi on Tuesday.

Strong storms are likely to continue Tuesday night across the Gulf Coast region. Night tornadoes are more dangerous because many people are sleeping and do not know that they should look for a safe place.

While the greater tornado threat exists during the day, there is still a chance for a few rotating storms during the evening hours.

Through Wednesday, the greatest threat exists for an area from New Orleans to Panama City, Florida.

“Details regarding the areas most at risk for tornadoes will become clearer as the event approaches and smaller trends become more apparent,” Elliott said.

Since the forecast can change, it is important pay attention to the development in the next days.

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