Tornadoes killed at least three people and damaged dozens of homes and businesses as a powerful storm system swept through the Gulf Coast on Tuesday evening, officials said.

More tornadoes were possible along the East Coast today, the National Weather Service warned, saying parts of Virginia and North Carolina had the highest chance of seeing extreme weather.

The service’s Storm Prediction Center received 31 reports of tornadoes in Louisiana, Alabama, Mississippi, Georgia and the Florida panhandle on Tuesday. Some of those reports may reference the same tornado, as several counties had multiple damage summaries listed.

The National Weather Service said one person was killed when a tornado destroyed a mobile home near Purvis, Mississippi. The St. James (Louisiana) Parish’s official Facebook page added that a tornado hit a mobile home park in Convent, killing two people and sending 30 to the hospital with injuries. The storm also damaged about 100 RVs and trailers there, officials wrote.

Elsewhere in Louisiana, the National Weather Service’s reports indicate tornadoes caused “significant damage” to a gym in Ascension Parish and “widespread structural damage” to homes and businesses in St. John the Baptist Parish. There were also several reports of winds knocking down trees and power lines, and one mention of a 120 mph gust near Mandeville.

Louisiana Governor John Bel Edwards declared a state of emergency in seven parishes.

“I ask all Louisianans to pray for the victims of the terrible storms that touched down in Louisiana today and especially at the Sugar Hill RV Park in Convent,” he said in a statement.

Governors in Alabama and Mississippi also declared states of emergency ahead of the storms.

The National Weather Service is expecting strong-to-severe thunderstorms from New York to Florida on Wednesday, but said severe weather was most likely to hit northeast North Carolina and southeast Virginia. The service said there was a “moderate risk” of severe thunderstorms in those areas, the second-highest level on a five-tier system, and tornadoes were a possibility.

The service issued several flash flood watches and wind advisories throughout the mid-Atlantic and southeast. Residents in the storm’s path are encouraged to monitor their local forecasts.