The storms that were expected to barrel through the region Thursday evening may end up passing with far less strength than anticipated.

“They tracked south,” said National Weather Service meteorologist Bill Simpson. “It’s mostly light rain now, with some areas of moderate rain in Western Mass.”

Just after 8 p.m., the weather service lifted the tornado watch it had issued for Berkshire County, said Simpson.

“The conditions weren’t there,” he said. “All the instabilities were well to the south.”

The weather service also lifted the severe thunderstorm watch for Franklin, Hampden, and Hampshire counties, though the potential for heavy rain remains throughout the state until Friday morning.

“In the overnight we could get some heavy downpours and thunderstorms,” Simpson said. “As far as severe storms go, [they are] probably not going to happen.”

Simpson said he was not aware of any power outages caused by the storms.

The nighttime thunderstorms are a result of a warm front that pushed through the region Thursday afternoon. The effects of the front could continue into the weekend, causing showers and thunderstorms again south of the Massachusetts Turnpike on Friday and Saturday, forecasters said.

Sunday and Monday are expected to feature fair weather, but unsettled weather is possible by the middle of next week, the weather service said.