A system that brought severe weather to Louisiana, Mississippi and Alabama on Wednesday, is shifting to the East Coast on Thursday. 

POSSIBLE ARKANSAS TORNADO DESTROYS HOMES, KNOCKS OUT POWER

The severe threat extends from the Florida Big Bend northward across the Carolinas, and as far as Washington, D.C., and New York

East Coast severe storm threat

East Coast severe storm threat (Credit: Fox News)

Thunderstorms will include some damaging winds, frequent lightning and heavy rain.  

Some flash flooding will be possible, especially in small streams and urban areas. 

SEVERE WEATHER FORECAST FOR GULF COAST AS MISSISSIPPI, OHIO, TENNESSEE VALLEYS IMPACTED BY THUNDERSTORMS

The tornado risk has lessened, but there is still a chance for some isolated small tornadoes to spin up. 

East Coast tornado threat

East Coast tornado threat (Credit: Fox News)

On the cold side of this severe weather system, a long-duration winter event is moving in. 

Ice will accumulate in northern Wisconsin, much of Michigan and portions of Pennsylvania

Winter weather alerts through Thursday night

Winter weather alerts through Thursday night (Credit: Fox News)

A widespread tenth-of-an-inch of ice will cause dangerous driving conditions, and some higher ice totals will fell power lines. 

Additionally, this winter system will bring snow totals into Iowa, Wisconsin and Michigan. 

CLICK HERE TO GET THE FOX NEWS APP

Snowfall totals will generally remain below 6 inches.