Drivers on U.S. Route 422 between the Armand Hammer Boulevard and Sanatoga interchanges took photos Thursday of flash flooding on a portion of the highway. More limited, scattered storms are possible Friday, the National Weather Service said.
A windstorm that could bring gusts from the northwest, blowing at up to 60 miles an hour, poses a roughly 12-hour property damage threat between Friday afternoon and early Saturday morning.
The National Weather Center regional office said a red-flag warning remains in effect until Monday evening in the county and elsewhere, as gusty winds and dry conditions increase the risk of fires.
A minor risk of flooding prevailed Monday morning as the past hours of rain subsided. Up next, according to AccuWeather, is a huge temperature drop that could make Tuesday driving slippery.
The National Weather service is keeping a winter weather advisory in place Friday until 4 p.m. for parts of Montgomery and Chester counties, due to freezing rain that made roads slippery overnight.
As the next winter storm arrives Thursday in this portion of the Northeast, AccuWeather experts predicted accumulating snow and a "messy mix" of other hazards. Stay off the roads, it suggested.
The National Weather Service warning, updated Monday at 4:15 a.m., anticipates a wintry mix during morning hours, changing Monday afternoon and night to freezing rain with significant icing. Stay home, it said.
A severe storm Monday afternoon and night pummeled Pottstown, Birdsboro, Royersford, Trappe, Collegeville, Schwenksville, Phoenixville, and Elverson.