Canada: Adverse weather forecast across parts of eastern regions through June 25 /update 1

Severe weather is forecast over parts of northern and central New Brunswick, western Prince Edward Island, and southern Quebec through June 25. Heavy rainfall, strong winds, large hail, and tornadoes may accompany storms. Winds gusting up to 100 kph (62 mph) are possible across the region over the coming hours. Authorities have warned people in the affected area to take cover if threatening weather approaches.

As of late June 23, Environment Canada has issued red heavy rainfall warnings (the highest level on a three-tier scale) across the affected area. Up to 3 cm (1 inch) of additional rainfall is forecast across southern Quebec into June 24. Rainfall of 4-6 cm (1.5-2.5 inches) is forecast over most of northern and central New Brunswick and 4-5 cm (1.5-2 inches) over Prince County in Prince Edward Island; rainfall is forecast to ease in intensity late June 23 but persist through at least June 25. Officials could issue further weather alerts for severe storms and possible tornadoes over the coming hours.

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

Severe weather may trigger flight delays and cancellations at airports across the affected region. Flooding could block regional rail lines; freight and passenger train delays and cancellations are possible in areas with heavy rainfall and potential track inundation.

Localized business disruptions could occur in flood- or tornado-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.