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The time frame for the multi-threat, complex system is from late Wednesday night, Nov. 20, into Friday, Nov. 22 as it arrives in the region after forming in the Great Lakes. (See the first image above from AccuWeather.)
The second image above shows the broad area where snowfall is expected, with 6 to 12 inches predicted in areas shown in the darkest shade of blue, mainly areas in the higher elevations of New York, Pennsylvania, Maryland and West Virginia.
Thunderstorms will become possible overnight Wednesday into Thursday. Some of the storms could produce heavy rainfall.
About three-quarters to an inch of rain is expected by around daybreak on Thursday.
The storm's height will kick in Thursday with rain, showers, and more thunderstorms in spots. It will bring the first soaking rain to much of the Northeast since late September.
It will be a raw and blustery day with a high temperature of around 50 degrees Thursday, wind speeds of 15 miles per hour, and gusts as high as 30 mph.
New precipitation totals of an inch or 2 inches of rain are expected on Thursday.
Strong wind gusts of 25 mph will continue Thursday night, and those areas where snowfall is expected will see it on the back end of the system at that time.
Friday will be mostly cloudy and colder, with a high temperature in the low 40s. There could be lingering showers during the day and again at night.
It will remain brisk on Saturday, Nov. 23, with a high temperature in the upper 60s and partly sunny skies.
It will become mostly sunny on Sunday, Nov. 24, with a high temperature of around 50 degrees.
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