One powerful low pressure system pushed ashore yesterday and will continue to affect the country from coast to coast all week. While blizzard conditions are expected over the Plains and Midwest, heavy rain and even some severe thunderstorms will lie directly to the south and east. For the Northeast, some more snow for northern New England is expected to develop later today into tomorrow, with some other severe risks further south.

Welcome to the Tuesday edition of your Morning Briefing, where we’ll give you a quick rundown on everything you need to know weather-wise, every weekday morning. Let’s jump right in.

Dangerous Blizzard Conditions Wednesday and Thursday:

  1. Snow will soon begin falling over the Northern Rockies this afternoon, continuing to spread eastward throughout the day. Heavy snow and high winds will mean dangerous conditions Wednesday and Thursday as our cyclone deepens over the Plains and into the Midwest.
  2. Snow will spread to the Northern and Central Plains by early Wednesday evening, moving into the region through the night. At this time, this cyclone is expected to quickly deepen, producing bands of heavy snow and high winds.
  3. Winds over the region on Wednesday and Thursday will likely be strong enough to topple trucks and power lines, creating some very hazardous traveling conditions.
  4. The highest snowfall totals will occur where the heaviest comma head snow bands fall, likely over South Dakota and into Minnesota. Additional high winds have already put a significant part of the region under a blizzard warning until Friday morning, when precipitation is expected to finally taper off.

Severe Weather and Downpours to Exacerbate Flooding:

  1. To the south and east of our blizzard warnings, where temperature profiles are too warm to support snow, rain will take its place. Heavy downpours and severe thunderstorms will rage on well into Friday, likely exacerbating flooding over much of the Central US.
  2. The greatest chance for severe weather will be centered around southern Nebraska Wednesday, and then shift over to much of the Ohio and Upper Mississippi Valleys on Thursday. Within both of these risk areas, the greatest threats will be enhanced precipitation, high winds, and hail.
  3. Heavy rain is expected with this storm within banding, along frontal boundaries, and within developing thunderstorms. 0.5-2″ will fall across the region, which will likely cause some flooding over parts of the Midwest and Lower Great Lakes, while exacerbating flooding that has continued along rivers.
  4. Rain will continue well into Friday before spreading over the entire Northeast and ultimately moving offshore.

Northeast Snow and Southeast Severe Risk:

  1. Before this powerful cross country storm reaches the Northeast at the end of the week, a round of much lighter rain and snow will move across the region tonight into tomorrow.
  2. As upper level energy races over the region, a quick shot of rain and snow will do the same. With warm Spring temperatures in place, snow will only be seen over parts of northern New England and Upstate NY, where only 1-2″ of snow will be accumulate.
  3. To the south, rain will be expected up and down the coast as a Gulf Coast storm moves eastward today. Some severe storms can be expected as well, with the greatest chance for high winds and hail just along the GA, SC, and NC coasts.

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Kathleen is a Meteorologist at WeatherOptics, where she works writing content for the website, providing accurate and detailed forecasts to clients, and consulting on various meteorological projects. Kathleen earned her B.S. in Atmospheric and Oceanic Sciences in 2018 from Stony Brook University. Kathleen has also done research into our changing climate by investigating theRole of Atmospheric Rivers on Arctic Amplification in 2017.

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