Thunderstorms brought torrents of rain to Suffolk on Thursday, prompting the National Weather Service to issue a flood advisory for part of the evening.

“It looks like based on the radar estimates, since yesterday in the Suffolk area we’ve gotten on average about three and a half to four inches,” James Foster, a meteorologist with the National Weather Service in Wakefield, said around 5 p.m. Thursday. “It looks like we’ll probably be in store for another one and a half to two inches by tomorrow morning.”

Foster said an area of high pressure sitting over the ocean, which was sending a lot of moisture inland, caused the storms. In addition, a frontal system was approaching from the west, he said.

“The combination of the front and the high to the east is pumping in lots of moisture,” Foster said. “It’s causing lift, and with the lift we get showers and thunderstorms.”

Foster warned motorists to watch out for ponding of water on roads, especially in low-lying areas or near bodies of water.

“It can be a danger for commuters who run into expected water depths,” he said. “For the most part, people just need to be careful, especially when they’re driving, and make sure they’re not driving too fast for the conditions.”

Foster said another chance of thunderstorms is expected Friday, though probably not as bad as Thursday.

A nice Saturday and Sunday are expected after the thunderstorms pass.