“Strong to severe” storms moving into New Jersey from Sunday night into Monday may include thundershowers, flash floods, excessive rainfall, and an eventual change to snow, forecasters say.

“Meteorologists are sounding the alarm for a widespread multiday severe risk stretching across the central and eastern United States from Sunday afternoon into Monday,” said Accuweather. “Over a dozen states will be at risk for severe thunderstorms.”

Rain will fall overnight into early Monday morning, dumping as much of a half inch on parts of the state, the NWS says.

“There is an increasing potential for strong to severe thunderstorms Monday along and ahead of a strong cold front,” the NWS says. “Localized flash flooding will also be possible.” Tornadoes may be spawned in some areas, forecasters say.

Commuting Concerns

“While Sunday will be dry, rains will begin Sunday night,” the NWS noted. “These are the forecasted rain totals through Tuesday morning.”

During the day on Monday, heavy rain and winds could cause problems on roads and airports.

“Downpours reducing visibility and causing ponding on roadways can also impact the [Monday] evening commute,” Accuweather said. “Ground stops can also occur at airports throughout the region.”

Forecasters also warned that a “March Megastorm” — which is expected to bring blizzard conditions to the Midwest on Monday — will likely impact the Northeast.

“Wind gusts of 40-60 mph are expected across the central and eastern U.S. Sunday and Monday, from New Mexico to Maine,” they say. “These winds alone can create hazardous travel for high-profile vehicles and may bring down tree limbs and power lines, especially in areas already weakened by recent storms.”

Snow Later

The cold front may lead to snowfall on Monday night as temperatures descend into the 30s. There’s a more than 50 percent chance of snow in the northernmost regions of the state, the NWS says.

While forecasters don’t predict much accumulation, they expect flurries or snow showers in North Jersey Monday into early Tuesday, ending by 8 a.m.

Temperatures will continue tumbling.

“A much colder air mass settles in for Tuesday with temperatures struggling to reach 40 degrees in some areas,” the NWS says. “A gusty westerly wind will also add a chill factor with wind chill values down into the upper teens to low 20s early Tuesday morning.”