Stratford News Rain will raise water levels in streams and rivers; UTRCA SHARE ON: Wendy Gray, staff Thursday, Mar. 14th, 2019 Image supplied by the UTRCA. Another warning today about being careful around all rivers and streams. The Upper Thames River Conservation Authority says the 10-20 mm of rain expected tonight (Thursday) will cause all bodies of water to rise. UTRCA says the warmer weather over the last few days has caused snow to melt and that runoff has caused water levels to elevate across the area. Flooding is not expected but peak water levels are expected to begin early tomorrow (Friday). The UTRCA reminds everyone to be careful on the banks of rivers and streams as they are unstable and dangerous. Water flows are strong and cold and pose a serious safety hazard.