Meteorologists warn that a polar vortex displacement will bring sharp temperature drops, travel disruptions, and renewed winter impacts from the Midwest to the East Coast later this week.
Through Wednesday, March 11, dozens of locations will challenge or set daytime high records. Temperatures will soar into the 60s and 70s in the northern parts of the Northeast, including New England, and the 70s and 80s farther south, the National Weather Service says.
However, a strong cold front will sweep across these areas, bringing a dramatic shift to wintry conditions on Thursday, March 12, with temps falling through the day amid gusty winds.
“A potent storm tracking east will trigger a dangerous severe weather outbreak across parts of the central and eastern US,” AccuWeather Lead Long-Range Expert Paul Pastelok said. “The wake of these storms will help draw colder air farther south.
"As the pattern evolves, a storm sometime from March 16-19 can bring mixed snow, ice, and rain to parts of the East, with a more significant discharge of cold air to follow from the Plains to the East.”
Daytime temperatures will plunge by 20-30 degrees, with some areas experiencing swings of up to 60 degrees Fahrenheit between the start and end of the week.
While March’s stronger sun could limit snow accumulation on roads during the daytime, nighttime and early-morning periods may bring hazardous travel conditions in areas farthest north and inland.
The northern US and southern Canada will bear the brunt of the wintry weather. Northern New England and parts of New York are also at risk for icy conditions.
A second storm system could arrive between Monday, March 16, and Wednesday, March 19, bringing additional chances of snow, ice, and rain across the East, followed by another cold Arctic surge.
Businesses should brace for renewed heating demands, potential power disruptions, and operational challenges.
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