Posts Tagged ‘holiday weather’

Accuweather: Christmas Eve, Day Winter Storm to Snarl Traffic in Midwestern and Northeastern US

December 21, 2017

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AccuWeather Global Headquarters – December 21, 2017 – As millions take to the roads or prepare to fly to their destinations for the Christmas holiday, winter storms will be on the prowl in the central and eastern United States through Christmas morning, AccuWeather forecasts.

A record 107.3 million people will take to planes, trains, aircraft and buses during the period from Saturday, Dec. 23, through Monday, Jan 1, according to the American Automobile Association (AAA).

While no intense storms are forecast, there will be areas of rain, ice and snow affecting heavily populated areas and popular travel routes.

The first storm will move on to target areas from the upper Gulf coast to the lower Great Lakes, central and southern Appalachians and the Interstate 95 corridor of the Northeast with rain from Friday to Saturday.

Snow, ice and treacherous travel from the first storm will spread from the central Great Lakes to part of the central Appalachians and New England into Saturday.

Another storm to blanket Rockies, Plains and Upper Midwest with snow into Christmas Eve

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The second storm of concern will bring accumulating snow to the central Rockies, including the Denver area on Saturday, before turning eastward Saturday night and Sunday.

It is this second storm that has the greatest potential to leave some snow on the ground for a white Christmas in parts of the central Plains, Ohio Valley states and central Appalachians.

Airline delays will be possible due to deicing operations while portions of I-25, I-35, I-69, I-70, I-74, I-75, I-77, I-80 and I-90 will be slippery.

Accumulating snow is forecast in Omaha, Nebraska; Kansas City, Missouri; Des Moines, Iowa; St. Louis; Chicago; Indianapolis; Detroit; Cleveland and Toronto as it rolls out Saturday night and Christmas Eve. Snow may cover the ground in Evansville, Indiana; Louisville, Kentucky; and Cincinnati, Dayton and Columbus, Ohio.

Snow showers may linger over the central and northern Rockies in the wake of the storm.

The same storm is also projected to spread snow into parts of Pennsylvania, West Virginia and western New York at night on Christmas Eve.

It is after dark on Christmas Eve, when the storm from the Midwest will attempt to join up with a budding storm along the Atlantic coast.

Third storm to bring snow to part of mid-Atlantic, New England Sunday night to Christmas Day

The track and strength of the storm, as well as the speed at which much colder air arrives, will determine the form of precipitation from parts of eastern Pennsylvania and New Jersey to southeastern New England from Sunday night to early Christmas Day.

At this time, all or mostly rain is forecast from Washington, D.C., to Philadelphia and Atlantic City, New Jersey.

However, snow and sleet are likely to mix in toward the end of the storm from near Allentown and Scranton, Pennsylvania, to Trenton, New Jersey; New York City; Hartford, Connecticut; Providence, Rhode Island; and Boston late Sunday night to Christmas morning.

If the two storms merge together and strengthen at a fast pace, then accumulating snow may fall as far to the southwest as Washington, D.C.

The storms are likely to come together fast enough to bring a heavy snowfall for much of central and northwestern New England and northeastern New York state on Christmas Day. It is in these areas where travel to church services, friends and family may be difficult.

Elsewhere, dry weather and a wildfire risk will continue in California, while a couple of storms may bring rounds of mixed precipitation to the coastal Northwest into Christmas Day.

Much colder air entering the middle of the nation during the weekend prior to Christmas will be just the start of a frigid weather pattern for many. Aside from storms, a broadening blast of cold air will be a major factor in the weather during the week of Christmas.

The frigid air will unleash bands of lake-effect snow and may pave the way for snow and ice as additional storms are likely to come about.

By Alex Sosnowski, Senior Meteorologist for AccuWeather.com

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Accuweather Thanksgiving Travel Forecast: Rain to Hug US East Coast; Lake-effect Snow to Slick Roads Near Great Lakes

November 21, 2017

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By Alex Sosnowski, Senior Meteorologist for AccuWeather.com

AccuWeather Global Headquarters – November 21, 2017 – AccuWeather reports rain may slow travel for a time in part of the east coast of the United States, while significant travel delays are likely in the Northwest and near the Great Lakes leading up to Thanksgiving.

Tuesday, Wednesday and Thanksgiving Day represent some of the busiest travel days of the year for all means of transportation, according to the American Automobile Association (AAA).

While the weather will cooperate for a large portion of the nation, there will be some areas of concern for holiday travel.

Rain to hug Atlantic coast

In lieu of a major storm, a weak storm is likely to brush part of the Atlantic Seaboard prior to Thanksgiving Day.

Wet weather is in store over much of Florida into Tuesday night. Rain is forecast to brush the coastal areas of the Carolinas and the mid-Atlantic coast late Tuesday night and then coastal New England on Wednesday.

The greatest impact will be to motorists.

Wet road surfaces and blowing spray may require lower speeds.

“The combination of rain and a low cloud ceiling may also be enough to lead to airline delays in Boston and perhaps New York City for a time on Wednesday,” according to AccuWeather Chief Meteorologist Elliot Abrams.

How far west the rain extends will depend on how close to the coast the storm tracks. At this time any long-duration rain is not likely to occur west of Interstate 95 in the mid-Atlantic region. Areas right along the mid-Atlantic coast may get a few hours of light rain.

Drenching rain is mostly likely to occur in southeastern New England and eastern Long Island

A brief period of rain and snow may occur on the back side of the storm over the central and northern Appalachians and eastern Great Lakes from Tuesday night to early Wednesday.

“Regardless of the amount of rain and/or snow showers, gusty winds are likely to herald the return of the cold air on Wednesday,” Abrams said. “Winds may pose a problem as the massive balloons are inflated ahead of the Macy’s Thanksgiving Day Parade in New York City.”

Another storm is forecast to bring more rain to parts of Florida on Thanksgiving Day, according to AccuWeather Meteorologist Fait Eherts.

Snowy, windy episodes to pester Upper Midwest

A new burst of cold air and a weak storm are forecast to produce spotty snow for the northern tier of the Midwest into Thanksgiving Day.

The fresh batch of cold air will be accompanied by gusty winds over much of the North Central states. Winds may be strong enough to lead to airline delays even in the absence of any snow showers into Wednesday.

As a pocket of arctic air races southeastward, it will briefly renew lake-effect snow from northern Michigan to northern and western New York, western Pennsylvania and northeastern West Virginia into midweek.

Motorists should be prepared for sudden snow showers and rapidly changing road conditions on their travels in these areas.

From late Wednesday to early Thanksgiving Day, a brief period of snow and/or freezing drizzle will develop over the northern Plains and slice southeastward across the Great Lakes.

While only a small amount of wintry precipitation is anticipated, even a thin coating of snow or ice can cause great difficulty for motorists on crowded highways.

Throughout the Midwest, there will be a couple of episodes of gusty winds that may lead to minor airline delays and tricky crosswinds on the highways.

Storms to harass travelers in northwestern US

By far, poor travel conditions will be the most consistent in coastal areas of Washington and Oregon through Thanksgiving Day.

Motorists venturing along the Interstate 5 corridor in the Northwest can expect rounds of drenching rain and periods of fog, according to AccuWeather Meteorologist Kyle Elliot.

Lesser rain is forecast east of the Cascades.

Snow levels are forecast to rise slowly into Thanksgiving Day.

Motorists may encounter slushy and slippery conditions into Tuesday over Snoqualmie Pass along I-90 in Washington. Milder conditions will allow plain rain to fall from Tuesday night to Thursday. However, fog may accompany the milder air over the mountains, where snow remains on the ground.

The milder air will allow rain to fall or a mixture of rain and snow to occur at most intermediate elevations of the northern Rockies, including many of the major passes.

Major weather-related travel disruptions unlikely over rest of US

It is possible that flights originating from the Northwest, coastal Northeast and Upper Midwest may cause minor delays elsewhere across the nation into Thanksgiving Day.

However, a large portion of the Southwest, South-Central and interior Southeast can expect good travel conditions.

Showers are forecast to retreat to the Gulf of Mexico along the Texas and Louisiana coasts beyond Tuesday night.