Delaware under severe thunderstorm watch as rain and storms put damper on Memorial Day

It looks like it might be a Memorial Day washout for much of Delaware.

Several rounds of rain showers and thunderstorms are expected as the holiday weekend wraps up Monday, according to the National Weather Service.

Here's when rain is expected to hit the First State:

Severe thunderstorm watch

All of Delaware as well as New Jersey and much of eastern Pennsylvania will be under a thunderstorm watch until 9 p.m., Monday according to the National Weather Service in Mount Holly, New Jersey.

Damaging wind and hail remain the greatest threat with some storms producing heavy rainfall. An isolated tornado possible, the weather service said.

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Heavy rain might cause localized flash flooding, the weather service said.

There is a slight risk of excessive rain in Wilmington and other parts of northern Delaware.

Several dead as tornadoes slam the South

The storms likely for Delaware and other states like Pennsylvania and New Jersey on Monday come after 15 were killed in powerful storms and tornadoes that swept across the nation's midsection Sunday in Texas, Oklahoma, Arkansas and Kentucky.

Seven deaths were confirmed in North Texas after an apparent tornado tore through Cooke County, near the Oklahoma border, on Saturday night, Gov. Greg Abbott said Sunday. Two children were among the dead, according to Cooke County Sheriff Ray Sappington.

At least 100 others were injured in the deadly storm, Abbott said. The governor added that the tornado destroyed more than 200 homes and other buildings as well as damaged another 120 structures.

John Bacon and Thao Nguyen contributed to this story.

This article originally appeared on Delaware News Journal: Delaware under severe thunderstorm watch as rain and storms put damper on Memorial Day