Rare threat level 4/5 issued as dangerous severe weather outbreak threatens 180+ million in major threat zone
A significant severe weather outbreak is developing for over 180 million Americans, as destructive impacts start this afternoon in the Heartland and will last through Monday night along the East Coast.
A widespread and significant severe weather outbreak is developing for over 180 million Americans, as destructive impacts start on Sunday afternoon in the Heartland and will last through Monday evening along the East Coast.
A level 3 out of 5 severe weather risk is in place today for millions in the Heartland as near-hurricane force wind gusts and strong tornadoes are all possible.
On Monday, the threat level was upgraded to a rare level 4 out of 5 for destructive severe weather and even long-track tornadoes along the East Coast, including the nation's capital, Washington, DC.
The FOX Forecast Center said by tonight, a destructive line of severe storms will develop across the Midwest and stretch into the Southeast, unleashing widespread damaging wind gusts up to potentially 75+ mph.
A level 3 out of 5 severe weather threat is in place for parts of Illinois, Indiana, Kentucky, Missouri and Tennessee, Arkansas, Louisiana, Mississippi and Alabama on Sunday.
The FOX Forecast Center said that any individual storm that forms ahead of the main line of storms will have a significant chance of rotating and producing tornadoes, some of which could be strong and stay on the ground for a long time.
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By Monday, the severe threat will move east over Georgia, the Carolinas, Virginia, up into Pennsylvania and New Jersey, with a high risk for dangerous winds and strong tornadoes.
The most significant threat will be in northeastern South Carolina, most of central and eastern North Carolina, eastern Virginia and up north to Washington, D.C., where the level 4 out of 5 severe risk exists.
Widespread power outages and damage will be possible during these destructive, fast-moving storms.
Two rounds of storms are likely, with the first bringing a more serious tornado threat for the Carolinas and Virginia by Monday afternoon.
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The second round will move in closer to the cold front, bringing more instability and strong wind shear.
The weekend bomb cyclone pushing through the Midwest and Great Lakes will help drive strong northwest winds behind the storm, pulling Arctic air south and east.
The Plains and Midwest will be the first to see a significant temperature shift on Monday as a bitter blast of Arctic air moves across the country.
Afternoon highs on Monday will be nearly 15-25 degrees below average, peaking in the teens and 20s across the Midwest and in the 40s and 50s across the Mid-South. These below-average temperatures will extend from the Canadian border all the way south to the Texas–Mexico border.
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Overnight into early Tuesday, wind chill values will drop into the negative single digits and teens for cities such as Minneapolis and Green Bay, and into the teens and 20s for areas like Oklahoma City and Atlanta.
In the Deep South, a few record low temperatures are possible.
By Tuesday, nearly 225 million Americans are expected to experience below-average temperatures.
The most widespread below-average temperatures will arise on Tuesday afternoon. Highs will once again run nearly 20-30 degrees below average for major cities such as St. Louis, Atlanta and Washington, DC.
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Many areas will remain in the mid-30s on Tuesday. By Wednesday morning, New York City and Boston will wake up to temperatures in the upper teens and 20s.
Temperatures slowly warm closer to average by Wednesday and Thursday.
Long-range temperature outlooks suggest parts of the Northeast could see below-average temperatures into late March.
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