Heavy rain caused flash flooding and road closures around the Lehigh Valley on Monday evening as storms made their way through. More rain is expected this week.

An Ohio-based pizza brand, with more than 1,200 locations worldwide, is expanding its footprint at a Lehigh County shopping center, which is set to welcome two other new tenants in

Flash flooding is possible from thunderstorms with potential rainfall rates of 3-5 inches within hours, particularly threatening urban areas and areas near streams.

The week is shaping up to be warm and stormy, with a chance of thunderstorms in the forecast every day and the possibility of heavy downpours at times. The National Weather Service issued a flood watch for Monday afternoon through Monday evening because of the chance of flash flooding from excessive rain.

U. SAUCON TWP., Pa. - Parts of Lehigh County are getting slammed with heavy rain, and that has led to flooded roads in spots. Shawnna sent us a photo of a car stuck in some deep water at Route 309 in Upper Saucon Township. There have been reports of water rescues in Upper Saucon and Lower Milford townships.

On Tuesday at 12:48 a.m. an updated flood warning was issued by the National Weather Service in effect until 4:45 a.m. for Lehigh and Montgomery counties.

The Lehigh Valley and surrounding areas are under a flash flood watch with 2 to 3 inches of rain expected Thursday afternoon and night.