Stratford News Rainfall warning in effect for Perth and Huron Counties SHARE ON: Patrick Grapes, staff Wednesday, Feb. 19th, 2014 Environment Canada has issued a Rainfall Warning for Perth and Huron Counties. The agency says an Alberta clipper and a Texas low are going to merge and intensify bringing strong winds and significant precipitation. The storm is expected to begin around midday tomorrow and carry on until Friday. Thunderstorms are a possibility and Environment Canada is expecting between 25 and 50 mm of rain and winds gusting up to 80 km/h. Environment Canada is monitoring the situation.