Nor'easter to become bomb cyclone as US prepares for fierce winds, flooding and snow

  • High winds to cause widespread power outages, travel disruptions and property damage.
  • Flooding rainfall in store for some locations, and coastal flooding will occur.
  • Rain to end as snow in many areas, with risk of a foot or more of heavy, wet snow in a narrow zone.

An already potent storm will track off the Atlantic coast and become a bomb cyclone that is likely to cause high winds, coastal flooding and heavy wet snow in the northeastern United States centered on Friday.

The storm will strengthen and the pressure in the center of the storm will plummet so fast that it will likely become another bomb cyclone of the winter of 2018. 

For this winter, this storm may be second only in intensity to the storm from early January in the same region. As the barometric pressure plummets, winds will increase dramatically.

Major trouble anticipated from high winds

The most far-reaching effect of the storm will be high winds. Gusts of 50-60 mph will be common from the central and southern Appalachians to the lower Great Lakes and part of northern New England. However, gusts approaching hurricane force are likely along the coast from Delmarva to eastern Massachusetts. The strongest winds are likely to be along the coast of eastern Massachusetts.

11 PHOTOS
Early 2018 winter weather across the US
See Gallery
Early 2018 winter weather across the US
CHICAGO, USA - JANUARY 20: A view of the frozen trees and ornamentals at Whihala Beach Park with the impact of surges and extremely cold weather in Chicago, Illionis, United States on January 20, 2018. (Photo by Bilgin S. Sasmaz/Anadolu Agency/Getty Images)
ILLIONIS, USA - JANUARY 12: Huge waves crash onto the sidewalk of the Lake Michigan as strong winds drive huge waves reaching about 6 meters high along the Chicago shoreline after the heavy snowfall and strong winds hit Indiana, in Chicago, United States on January 12, 2018. (Photo by Bilgin S. Sasmaz/Anadolu Agency/Getty Images)
UNITED STATES - JANUARY 9: The U.S. Capitol dome is seen surrounded by fog Tuesday morning, Jan. 9, 2018. (Photo By Bill Clark/CQ Roll Call)
UNITED STATES - JANUARY 23: Storm clouds pass over the dome of the U.S. Capitol building on Tuesday, Jan. 23, 2018. (Photo By Bill Clark/CQ Roll Call)
NEW YORK, USA - JANUARY 09: Crowd of people skate on the ice rink during cold weather following snow days at the Central Park in New York City, United States on January 09, 2018. (Photo by Atilgan Ozdil/Anadolu Agency/Getty Images)
NEW YORK, USA - JANUARY 09: City staff members shovel snow during cold weather following snow days at the Central Park in New York City, United States on January 09, 2018. (Photo by Atilgan Ozdil/Anadolu Agency/Getty Images)
UNITED STATES - JANUARY 08: A visitor from Vietnam makes his way across the frozen Lincoln Memorial Reflecting Pool on January 8, 2018. A member of the National Park Service subsequently told people to leave the ice and said that 12 people had recently fallen through. (Photo By Tom Williams/CQ Roll Call)
CHICAGO, USA - JANUARY 6: A view of the coast of Michigan lake frozen due to the extremely cold weather reaching minus 20 in the nights hits Chicago, Illionis, United States on January 6, 2018. (Photo by Bilgin S. Sasmaz/Anadolu Agency/Getty Images)
CHICAGO, USA - JANUARY 6: A view of the coast of Michigan lake frozen due to the extremely cold weather reaching minus 20 in the nights hits Chicago, Illionis, United States on January 6, 2018. (Photo by Bilgin S. Sasmaz/Anadolu Agency/Getty Images)
CHICAGO, USA - JANUARY 6: A view of ice floating over the frozen Chicago river as extremely cold weather reaching minus 20 in the nights hits Chicago, Illionis, United States on January 6, 2018. (Photo by Bilgin S. Sasmaz/Anadolu Agency/Getty Images)
NEW YORK, NY - JANUARY 06: A man walks around Central Park during freezing temperatures on January 06, 2018 in New York City. The extreme conditions suffered across the United States are a result of the 'bomb cyclone' brought along by Storm Grayson. (Photo by Eduardo Munoz Alvarez/Getty Images)
HIDE CAPTION
SHOW CAPTION
of
SEE ALL
BACK TO SLIDE

Extensive power outages are likely into Saturday. Have a working flashlight on hand, and keep cell phones charged.

Winds will knock down trees, cause damage property and make loose objects into projectiles. Walking, standing or driving through areas where there is a canopy of trees may be very dangerous during the storm.

Major airline delays and flight cancellations are likely due to the wind alone from Detroit to Washington, D.C., Baltimore, Philadelphia, New York City and Boston. Wind-related delays are possible as far south as Charlotte, North Carolina, and Atlanta.

Airlines were waiving change fees ahead of the storm, according to the USA Today.

Most of the problems from the storm in Washington, D.C., and Baltimore will be due to the wind and not so much from rain and any brief period of snow at the end.

Coastal inundation may behave like a tropical storm or hurricane

Depending on the wind direction, ocean and/or bay waters will be pushed inland, and substantial coastal flooding and beach erosion are anticipated. As the storm moves along and the wind shifts, areas that were not flooded initially may take on water.

Tides are likely to run 2-4 feet above normal. Tides may be as much as 5 feet above normal at peak, where the shape of the coast acts as a funnel and prevents water from escaping.

The worst conditions are likely in eastern Massachusetts, where officials have already asked coastal residents to evacuate, according to Mass Live.

On Thursday, Massachusetts Gov. Charlie Baker announced that he was activating the state's National Guard to assist residents who may be impacted by the storm. 

Offshore waves of 30 feet are forecast. All vessels are encouraged to remain in port. Large vessels should remain at sea until the storm moves away later this weekend.

However, areas father south and north may also experience coastal flooding.

Lake shore flooding is likely along the southern shorelines of lakes Erie, Ontario and Michigan.

Storm to produce flooding rainfall in some communities

Rain will fall in most areas during the first part of the storm. As the storm strengthens, rainfall rates will increase along with the wind.

Rain may be so intense that it leads to widespread urban and small stream flooding from part of eastern Pennsylvania and central New Jersey on to the northeastern to eastern Massachusetts. Rainfall in part of this area may range between 3 and 5 inches from the storm, with the heaviest rainfall likely during the day Friday.

7 PHOTOS
2017 winter weather predictions
See Gallery
2017 winter weather predictions

This year's Farmer's Almanac predicts less precipitation in the Pacific Northwest and Upper Midwest, but other areas might not be so lucky ...

Source: www.almanac.com

The National Oceanic and Atmospheric Administration predicted La Nina will potentially emerge this winter season, bringing with it above-average precipitation and below-average cold temperatures.

Source: www.noaa.gov

But if La Nina does hit, it will impact each U.S. area in a different way ...

For example, the Rockies would likely be rocked with abundant snowfall, while the Midwest would be plagued with blasts of cold air.

Source: www.accuweather.com

Another more wonky model from Atmospheric and Environmental Research predicts that colder temperatures could hit the East Coast if there is a stratospheric polar vortex disruption.

Changes in the jet stream have a direct impact on weather patterns, and in the earliest days of December Americans could see a cold front and snow in the Plains and upper Great Lakes.

Averaging 44 inches of snow each winter, Boston is known to get slammed with tough weather. This year, NOAA predicts the historic city will see within 10 inches of that average.
HIDE CAPTION
SHOW CAPTION
of
SEE ALL
BACK TO SLIDE

RELATED: 
What is bombogenesis? 
How to survive a power outage in winter 
Preparing for the costliest weather disaster in the US: How to stay safe before, during and after a flood 
Shoveling snow increases risk for winter heart attacks, experts say 
Do weather-related flight delays really save lives?

Significant travel disruptions on area roads are likely from New York City to Boston as a result.

Pockets of urban and small stream flooding may occur farther west to the Appalachians. However, a change to heavy wet snow or a sweep of dry air at the height of the storm may mitigate these problems.

Heavy wet snow to pile up in a hurry

A change to heavy, wet snow is in store for many areas as the storm progresses. Some motorists may get stranded on the highways in this storm.

Areas from the lower Great Lakes to the higher elevations of the Appalachians experienced a changeover to snow on Thursday evening and early Friday morning.

The changeover to snow will progress to coastal areas from the upper mid-Atlantic to New England Friday afternoon.

The heaviest snow is forecast over much of western, central and southeastern New York state with the likelihood of at least a few inches of snow around New York City. However, it's possible that much heavier snow falls in New York City to perhaps as far south as Philadelphia. A matter of a couple of degrees Fahrenheit may make a difference.

How quickly cold air is drawn into the storm near the end will determine how far south snow falls in the mid-Atlantic and in southeastern New England.

In lieu of high winds, the snow will be heavy and wet enough to weigh down trees and power lines. The weight of the snow, whether it be a few inches to 18 inches will be difficult to shovel and plow.

The storm will end from west to east during Friday and Friday night. However, strong winds will continue through Saturday in some communities.

Blustery and cold conditions are likely to linger along much of the Atlantic Seaboard into Sunday.

Read Full Story