WEATHER. Significant amounts of rain are expected in the coming hours in several regions of Quebec. Environment Canada issued a special weather report related to a massive depression. A weather system will form south of the Great Lakes on Thursday morning. It will affect southern Quebec midday Thursday. "The rain will quickly increase in the evening of Thursday with quantities between 40 and 50 millimeters until Friday morning," warns Environment Canada. Precipitation will continue in the day of Friday. "Some localities near and north of the river could receive between 50 and 80 millimeters of rain," continues the federal agency, adding that torrential rains can cause flash floods and a buildup of water on the roads. Here are some of the areas affected by the weather alert: LAURENTIAN of Mont-Tremblant - Sainte-Agathe of Sainte-Adèle - Saint-Sauveur -sector of Saint-Donat - Mont-Tremblant Park SAINT-JEROME LANAUDIÈRE -sector of Mascouche of Rawdon - Joliette of Berthierville - Saint-Gabriel MAURICIE -sector of Lac-aux-Sables -sector of Louiseville District of Matawin - Mauricie National Park -Sector of Sainte-Anne-de-la-Pérade -Sector of Shawinigan -sector of Trois-Rivières LAVAL Even more rain? This weather system could be affected by another depression currently affecting eastern Florida. It could interact with the system that will affect Quebec. This interaction could bring additional amounts of rain to southern and central Quebec on Saturday. "It is still too early to specify the quantities to be received," informs Environment Canada.