Canada: Severe weather forecast across southeastern regions through at least Nov. 15 /update 1

Severe weather is forecast to continue across parts of southeastern Canada through at least Nov. 15. As of early Nov. 14, Environment Canada has red rainfall and strong wind warnings (the highest level on a three-tier scale) across southern parts of Newfoundland; rainfall totals of 8-12 cm (3.1-4.7 inches) and winds gusting up to 120 kph (75 mph) are possible in parts of the region. Red freezing rain warnings have been issued for parts of southeastern Labrador and the Gaspe Peninsula in Quebec; ice accumulations of 0.3-1 cm (0.1-0.4 inches) are possible in these regions. Authorities will likely issue new alerts or update/rescind existing advisories as weather conditions change over the coming hours and days. Flooding is possible in areas where sustained heavy rainfall occurs and hazardous travel conditions are likely in areas impacted by freezing rain due to slippery roads. Strong winds may cause property damage and power outages.

Sustained heavy rainfall could trigger flooding in low-lying communities near rivers, streams, and creeks. Urban flooding is also possible in developed areas with easily overwhelmed stormwater drainage systems. Sites downstream from large reservoirs or rivers may be subject to flash flooding after relatively short periods of intense rainfall. Landslides are possible in hilly areas, especially where heavy rain has saturated the soil.

The severe weather could contribute to transport disruptions throughout the region. Floodwaters or ice accumulations may render some bridges or roadways impassable, impacting overland travel in and around affected areas. Ponding on road surfaces and slippery ice could cause hazardous driving conditions on regional highways. Authorities could temporarily close some low-lying routes that become inundated by floodwaters.

Localized business disruptions could occur in flood-hit areas; some businesses might not operate at full capacity because of damage to facilities, possible evacuations, and some employees' inability to reach work sites. Strong winds could also cause power outages.