Heavy thunderstorms rolled across parts of Mecklenburg and several nearby counties Sunday evening, triggering flash flood warnings for the second straight night.
Sunday evening’s storms dumped heavy rain in areas near where flash flooding was reported 24 hours earlier.
Forecasters expect more unsettled weather Monday and Tuesday, with a chance of thunderstorms each day before cooler and drier weather arrives later in the week.
Sunday evening’s storms battered parts of Cleveland, York and Lancaster counties, in addition to southern Mecklenburg County. An automated gauge at Tega Cay in York County indicated more than an inch of rain fell in 90 minutes. That same area reported about 2½ inches of rain in thunderstorms Saturday evening and Sunday morning.
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There were a number of social media reports Sunday evening of rising water near homes in southwest Charlotte.
There also were reports of pea-sized hail in Kings Mountain and west of Clover. York County authorities reported thunderstorm winds blew down a number of trees and power lines along Crowder Creek Road and U.S. 321 near Clover around 8:30 p.m. Sunday.
A flash flood warning was issued until late Sunday night for northern York and southwest Mecklenburg counties. In addition, a flood advisory was issued for northern Lancaster County, and the National Weather Service office in Columbia said a flash flood warning might be needed for that area.
The storms came about 24 hours after torrential downpours triggered flooding Saturday evening.
The National Weather Service said a trained spotter reported 8.07 inches of rain fell about 6 miles east of Rock Hill, with about 5 inches of that coming between 7 and 9 p.m. Saturday. That is the area where Manchester Creek flooded Saturday evening, sending water onto heavily traveled Dave Lyle Boulevard near Interstate 77.
Authorities reported motorists were rescued from vehicles on Dave Lyle Boulevard and on King Drive near Rock Hill. Flooding was still reported east of Rock Hill late Sunday afternoon, as waters that had receded late Saturday rose again when another round of thunderstorms crossed the area Sunday morning.
A number of roads in Fort Mill also were blocked by high water for several hours late Saturday and early Sunday.
The Weather Service also reported flooding Saturday evening in western Union County near the town of Hemby Bridge. And Union County authorities reported several roads north of Waxhaw were closed due to high water.
There were no immediate reports of damage to residential or business buildings.
The storms also caused scattered power outages. At one point Saturday evening, more than 6,000 outages were reported by Duke Energy, mostly in southeast Mecklenburg County.
The thunderstorms and heavy rain came after months of dry conditions. Rainfall in Charlotte during March and April was about 5 inches below average until Saturday evening.
More than 4½ inches of rain was reported at Elon Homes, near Ballantyne in southeast Mecklenburg County. More than 3 inches fell at several other locations in southeast Charlotte and Matthews, and 5-inch-plus totals were reported near Weddington in Union County.
Additional showers and thunderstorms are forecast Monday, with continuing above-average temperatures. Precipitation chances will drop to low levels Thursday, and dry weather is forecast next weekend. But a Canadian air mass will bring cool weather Friday, with the forecast high in Charlotte of only 70 degrees. A rapid warm-up is forecast next weekend.