Blizzard warnings have been expanded to include parts of eight states in the Northeast, including New York City, in advance of Winter Storm Stella, which will hammer the region with more than a foot of snow and strong winds Monday night into Tuesday. Stella will also deliver a swath of snow to the Midwest into Monday evening.
This major nor’easter will take shape as a strong area of low pressure develops off the East Coast Monday evening in response to jet stream energy moving through the eastern states. That low may undergo bombogenesis as it moves northward along the coast through Tuesday night, meaning there will be a rapid drop in atmospheric pressure, which indicates strengthening.
Blizzard warnings now cover portions of eastern Pennsylvania, northern New Jersey, southeast New York, Connecticut, northern Rhode Island, western/central Massachusetts, southeast New Hampshire and southern Maine.
Winter storm warnings are also in place across other parts of the mid-Atlantic and Northeast, including Boston, Philadelphia, Baltimore and Washington D.C.
Storm totals of a foot or more are likely in a widespread swath of the Northeast region, which will bring travel to a standstill on roads and at airports. Strong winds could cause tree damage and power outages in the Northeast, as well. Thundersnow may also occur during the height of the storm Tuesday.
One trend in the latest forecast data is that the low may now track closer to the coast. That could cause some locations, including near parts of the Interstate 95 corridor, to change to rain or sleet for a time during the storm and cut down on accumulations where that occurs.