Canada: Post-Tropical Cyclone Isaias tracks northward in eastern Quebec August 5

Event

The Canadian Hurricane Center has warned of heavy rainfall over parts of Quebec on Wednesday, August 5, as Post-Tropical Cyclone Isaias tracks northward across eastern Quebec. The center has forecast that Chibougamau in central Quebec could be particularly impacted, with the chance of 15-25mm (0.5-1 inch) of rainfall expected on Wednesday. The system has maximum sustained wind speeds of 35 kph (40 mph), and as of 05:00 (local time) the system's center of circulation was approximately 90 km (55 mi) west-northwest of Quebec City. Isaias will then gradually weaken further as it moves across eastern Quebec, likely impacting New Brunswick and western Newfoundland. The storm system is forecast to dissipate over northern Quebec late on Thursday, August 6, or early on Friday, August 7.

Context

The Atlantic hurricane season runs from late May through to the end of November, with activity typically peaking in late August and early September. Numerous tropical storms form in the Atlantic Ocean during this period, with most affecting the Caribbean, the Gulf of Mexico, and the east coast of the United States. Although communities in the region are generally well prepared for adverse weather conditions during the hurricane season, severe storms bring a significant risk of flooding and infrastructural damage.

Advice

Individuals in the affected areas are advised to monitor local weather reports, avoid areas directly affected by flooding, confirm road conditions before setting out, and adhere to instructions issued by local authorities.