pocket of severe weather may erupt in Illinois and Indiana, as unstable air wraps toward the surface low.

Severe storms packing high winds may develop on Sunday east of the Appalachians, from Florida to Virginia.

Figure 3. Depiction from weather.com of winter-weather watches, warnings, and advisories in effect from the National Weather Service as of Friday morning, April 13, 2018.

From the Northern Plains to New England, winter hasn’t left the building yet

Blizzard warnings were plastered on Friday morning from northeast Colorado to southern Minnesota, along the north side of a sharpening stationary front. Heavy snowfall rates and wind gusts to 40-50 mph (or more) will paralyze travel across large stretches of the Northern Plains. Snowfall could total more than a foot across parts of South Dakota, with larger drifts aSaturday afternoon, the Hudson Valley of New York could see temperatures vary from around 32°F in Albany to near 80°F in New York.

Figure 5. Temperature forecast for the northeast U.S. from the 06Z Friday run of the GFS model, valid for 2 pm EDT Saturday, April 14, 2018. Image credit: tropicaltidbits.com.

The Weather Company’s primary journalistic mission is to report on breaking
weather news, the environment and the importance of science to our lives.
This story does not necessarily represent the position of our parent company, IBM.

Bob Henson

WU meteorologist Bob Henson, co-editor of Category 6, is the author of "Meteorology Today" and "The Thinking Person's Guide to Climate Change." Before joining WU, he was a longtime writer and editor at the University Corporation for Atmospheric Research in Boulder, CO.

Please note that