Severe thunderstorm chances return for overnight hours

The unsettled pattern continues through the overnight hours and into Monday, with the chance for storms at about 60 percent throughout the day.

Any of those storms could be severe and produce heavy downpours, WRAL meteorologist Mike Maze said.

"The greatest threat may come from hail as some colder air aloft shifts into the region. The freezing level will be lower to the ground, which will allow the hail to form," Maze said.

"You will definitely want to have an umbrella handy through the early part of the coming week," WRAL meteorologist Mike Maze said.

An unusually strong jet stream is dipping into the eastern part of the country and, paired with abundant moisture in the atmosphere, it makes the chance for showers and storms an almost-certainty at some point Monday, Tuesday and Wednesday, Maze said.

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"We'll see numerous rain chances. Some of those storms could produce locally heavy downpours, keeping the threat of flash flooding in the forecast," Maze said.

Overall cloudy skies keep the hottest of the heat at bay, though. The high temperatures for the week will be only in the mid-80s, and overnight lows dip into the low 70s.

When the clouds begin to break up and storm chances lessen on Thursday and Friday, temperatures will again climb toward the 90-degree mark.

Raleigh saw mostly cloudy skies with a few rays of sun Sunday, while communities along the Interstate 95 corridor, including Rocky Mount and Wilson got hammered again by severe thunderstorms. According to the National Weather Service, some of those storms packed 60 mph winds and quarter-sized hail.