Wintry weather threatens post-Thanksgiving travel

Key Concepts

• Lake Effect Snow
• Winter Storm Warnings
• Crossount Storm
• Post-Thanksgiving Travel Disruption
• Snowfall Accumulation (inches)
• Visibility Reduction
• Wind Damage

Winter Storm Impact in Upstate New York and Great Lakes Region

The transcript details a significant winter storm impacting upstate New York and the Great Lakes region, characterized by whipping winds and wet snow. This "lake effect snow" system is projected to deposit an additional 6 to 20 inches of snow in areas surrounding the Great Lakes through the night. The severity of the snowfall is overwhelming snowplows, with one individual noting their driveway was plowed but expecting it to worsen as the snow continues to fall.

Specific Impacts and Observations:

• Treacherous Driving Conditions: Cars are struggling to navigate the hazardous conditions, leading to numerous accidents across the Northeast Corridor.
• Visibility Issues: Low visibility is a major concern, exemplified by cars "creeping along" Interstate 271 near Cleveland, Ohio.
• Wind Damage: Strong winds are causing significant damage, including the toppling of a large tree that crushed two cars.
• Disruption to Shoppers: Parking lots expected to be filled with shoppers in the coming hours are described as "not looking very welcoming" due to the storm.

Forecasted Storm Development and Travel Disruptions

A "brand new crossount storm" is anticipated to cause widespread havoc, particularly affecting post-Thanksgiving travel. Winter storm warnings are in effect this morning, spanning from Great Falls to the Great Lakes. Heavy snow is expected from Friday through Saturday.

Weekend Storm Timeline and Snowfall Projections:

• Friday: Snowfall is anticipated to cover areas from Montana to Iowa, with continued lake effect snow. A significant portion of the nation is expected to remain dry.
• Saturday: The storm is predicted to intensify and "really come together." Heavy snow is forecast along Interstate 80, from Omaha to Chicago. Rain is expected in areas already experiencing heavy rainfall, such as Dallas and Oklahoma City.
• Saturday Night and Sunday: The storm system is projected to shift eastward, impacting the East Coast. By the end of the storm, many cities from Sioux City eastward could experience up to 12 inches of snow.

Technical Terms and Concepts

• Lake Effect Snow: Snow that falls when cold air moves across large bodies of relatively warm water, picking up moisture that then freezes and falls as snow on the leeward shores.
• Winter Storm Warnings: Alerts issued by meteorological agencies indicating that a winter storm is expected to cause significant impacts, such as heavy snow, ice, or strong winds.
• Crossount Storm: A storm that forms or intensifies along a frontal boundary, often bringing a mix of precipitation and significant weather changes.
• Northeast Corridor: A densely populated region in the northeastern United States, often referring to the major transportation routes connecting cities like Boston, New York City, Philadelphia, and Washington D.C.

Conclusion

The transcript highlights an active and impactful winter weather system characterized by heavy snowfall, strong winds, and reduced visibility. The storm is causing significant disruptions to travel, particularly for those undertaking post-Thanksgiving journeys, and is expected to continue its progression across the United States through the weekend, with substantial snow accumulations anticipated in various regions.