Yet another storm will develop under an upper-level trough midweek, which will be responsible for bringing another round of snow to portions of the Midwest and Northeast between Wednesday and Thursday. This comes after the historic winter storm that slammed the Midwest during the weekend. Green Bay, Wisconsin recorded their all-time greatest snowstorm with 24.2 inches over a course of two days. This is now also Minneapolis’ snowiest April on record, and the month is only halfway over. 15.8 inches of snow fell from this most recent storm in the Twin Cities. Sioux Falls, South Dakota ended with 13.7 inches of snowfall from this storm, which shatters the daily and monthly highest snow records. It also breaks the total monthly snowfall record by over half a foot.
With this next, incoming winter storm, snowfall totals will not be as significant nor widespread, but some locations will approach one foot of snowfall. Snow will break out Tuesday evening as the surface low pressure quickly develops over the Central Plains. Light snow showers can be expected Tuesday night in portions of the Dakotas and Nebraska.
Then by sunrise Wednesday, a moderate to heavy snow is expected to be falling across eastern Nebraska into western Iowa. That snow will move to the east as the day progresses, working into northern Iowa. A light to moderate snow is forecast for surrounding areas, including: eastern Dakotas, northeastern Nebraska, extreme-southern Minnesota, southern Wisconsin, extreme-northwestern Illinois, and possibly central Lower Michigan. Then overnight Wednesday, this storm will quickly track to the east and into the Northeast while weakening in strength. Snow showers are expected Wednesday night from southern Wisconsin and northern Illinois through southern Lower Michigan, northern Indiana and Ohio, northwestern Pennsylvania, western and central New York, and portions of the Berkshire Mountains.
On Thursday, the low pressure will then move off the Northeast coast and will actually re-intensify into about a 995 millibar low. This low will bring rain showers to the coast while snow showers fall across the interior, from the Appalachian Mountains in West Virginia through western and northern Pennsylvania, western and Upstate New York, and the higher elevations of northern New England. This storm will pull farther offshore Thursday night, so the precipitation will gradually clear out. The rain will come to an end at the coast first, followed by the snow. Snow showers will remain possible in much of New York State and northern New England. Even the lower elevations of New England may experience a brief period of snow, but it will be very brief and temperatures will be above freezing, so it will not accumulate.
By Friday, most of the precipitation will have cleared the Northeast, although lingering, light snow showers are possible near the United States-Canada border.
The risk for snow for the remainder of the week and into the weekend for the Northern Tier will be very low, thankfully. The next chance for snow arises at the start of next week for portions of the Northern Plains, but it will be minor.