Rain, warm temperatures and severe weather will be kicked out by a cold front that will move across the Midwest, Tennessee Valley and East during by Wednesday. This will set the stage for colder weather and our next snowy system.
The system is currently out in the Northwest bringing accumulating snow to Idaho. The express train of systems coming through the Pacific Northwest continues after more snow came to Seattle and Portland. This system will spread eastward into the Plains and Midwest Tuesday evening and into the overnight hours.
Temperatures will plummet 15-30 degrees in the wake of the cold front. The system should be fully snow in the Midwest affecting places like Omaha, Peoria and Chicago. The swath of snow will be relatively small and accumulations should be light with around 1-2″ expected.
The snow moves eastward into Indiana and Ohio during the afternoon hours Wednesday. Atmospheric dynamics aloft should support more lift and strengthening for the system as it moves through Ohio during the evening. Energy aloft near 18,000ft will enhance snow and allow for a corridor of a few inches to fall. The snow band will still be relatively narrow. Indianapolis to Fort Wayne eastward through Columbus and Cleveland should see some snow.
There is still some uncertainty on exactly where the heavier snow band will setup, but it’s possible a very small corridor of 3-4″ inches will fall in Ohio.
Roads will become slippery in spots as the snow moves through. Heavier bursts of snow will even lead to snow-covered roadways, especially where plows and salt trucks have not being able to treat them.
The energy aloft will help a low pressure system strengthen in the Mid Atlantic. It will likely move up the East Coast as a Nor’easter during the day Thursday. This system will likely feed on fresh cold air coming in from Canada and the relatively warm water of the Atlantic Ocean. The low pressure should produce some moderate to heavy snow on its west side as it moves up the coast.
Heavy wet snow will fall for the large I-95 cities like Washington D.C., It will stretch from the mountains of northern Virginia and West Virginia into central and southeastern New England. New York City will likely see 2-4″ of snow, but Boston and surrounding areas of New England will possibly see 6-12″ with even higher totals possible in the strongest snow bands. Not all computer forecast models agree on the exact placement of the low pressure system. If it moves out to sea accumulations will be potential be cut by several inches in spots.
There could be mixed precipitation closer to the coast where warmer air will be present. Overall this will be a messy system that could cause long travel delays on the interstates and airports. The heavy snow totals should be located in a narrow band, so you will need to stay updated for the latest information.
Lake effect snow will be flying across the Great Lakes to the west of the Nor’easter. The setup only lasts for several hours, so accumulations do not look to be very impressive. Some spots downwind of Lake’s Erie and Ontario could see a few inches where squalls persist.
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