Big Storm System Eyes Eastern U.S. To Close Out November | WeatherBug
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Big Storm System Eyes Eastern U.S. To Close Out November

November 30, 2020
UPDATED By WeatherBug Meteorologists
An area of low pressure forming along the Gulf Coast will bring strong winds, rain, the chance for gusty thunderstorms and even heavy snow as it chugs up the Eastern Seaboard this afternoon.

Strong to locally severe thunderstorms are possible today along the East Coast from eastern North Carolina northward to Washington D.C.. Baltimore, Philadelphia, New York City and Boston. Brief damaging winds and even a tornado or two cannot be ruled out this afternoon and evening.

A Tornado Watch has been posted across the mid-Atlantic from northen Virginia the Maryland Eastern Shore to north-central New Jersey. This includes Washington, D.C., Baltimore, Wilmington, Del., Philadelphia, Atlantic City and Trenton, N.J. 

As the low undergoes deepening across the northern Mid-Atlantic, rain amounts will increase ahead of the system in New England where 2 to 4 inches will drench Hartford, Conn., to Bangor, Maine, helping to relieve moderate to extreme drought across the area.

In addition to the heavy rain, strong wind gusts up to 60 mph will be possible where High Wind Watches are in effect for southeastern Rhode Island, Massachusetts and Maine including the cities of Providence, R.I., and Plymouth, Mass.

At the same time as the storm is soaking the Eastern Seaboard, an upper-level disturbance will become entwined with the developing low pressure system, delivering a late punch of cold air into the system. This will lead to snow developing on the western fringes of the storm, first in the Ohio Valley on Monday, then expanding Monday night and Tuesday into the northern Appalachians, eastern Great Lakes and Upstate New York. 

Winter Weather Advisories are in place for central Kentucky into central Tennessee and northern Ohio. Continually, Winter Storm Warnings are posted for northeastern Ohio into extreme northwestern Pennsylvania and New York. These aleats are for the potential of 2 to 7 inches of snow. Cold air will eventually work into northern Vermont, New Hampshire and Maine late Tuesday to Wednesday but snow amounts will be less than 3 inches.

The lake-effect snow machine will wind down Wednesday with high pressure expected to bring dry weather to the East Thursday and Friday before the next weather system arrives in time for the first weekend in December.