Another round of rain for southern Quebec

Lake St. Louis continues to run very high along the shores of L'Ile Perrot, inundating some shoreline yards. (ValleyWeather Photo)

Our record breaking wet spring continues across southern Quebec, with another shot of heavy rain expected Thursday into Friday. To date, we have recorded 92.8mm of rain at Trudeau Airport for the month of May. The normal is 81.2mm. The situation won't be helped as the week draws to close, with the arrival of two storm systems. The first is over western Canada and will move towards the Great Lakes while weakening. This storm is producing very strong winds in Alberta and Saskatchewan today, with winds exceeding 100km/h. Heavy rain and even some snow is falling in Alberta, with strong thunderstorms in Saskatchewan. Meanwhile another storm will organize along the southeast American coast Thursday. This moisture latent system will move towards southern New England, and eventually Atlantic Canada. Rain will overspread the area from south to north on Thursday and become heavy at times. The rain will taper to showers by late Friday. Expect 15-25mm (1 inch) of rain in Montreal. Friday will be much cooler, with gusty northeast winds and temperatures in the low teens. The weekend at this time look much better, with clearing skies Saturday and temperatures in the low 20s.

Of note, water levels continue to lower around the region, but remain uncomfortably high along Lake St. Louis and the St. Lawrence River. Boaters or anyone venturing close to the shoreline or using the waterway should remain vigilant. The Ottawa River meanwhile has dropped below flood stage, with rapidly improving conditions.