Weather

Severe thunderstorm chances return for overnight hours

Posted July 22, 2018 5:18 p.m. EDT
Updated July 22, 2018 9:57 p.m. EDT

— The National Weather Service issued a severe thunderstorm warning for Durham, Granville, Orange and Person counties through 10:15 p.m. Sunday, the latest in a series of alerts that encompassed communities to the east, along Interstate 95, and to the west, in Alamance and Chatham counties over the course of the evening.

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.

Work week starts out wet

"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.

"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.

Counties along the coast are under a flash flood watch through Tuesday evening, with 3 to 5 inches of rain expected there over the next three days.

Rainfall 24 Hours, DMA

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.

7-Day Forecast

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.