28 Jul 2022 | 02:27 AM UTC
Canada: Heatwave forecast across most of Alberta and most of British Columbia provinces through at least Aug. 2 /update 1
Heatwave forecast across most of Alberta and British Columbia, Canada, through at least Aug. 2. Transport and power disruptions possible.
Event
Excessive temperatures are forecast across most of Alberta and most of British Columbia provinces in southwestern Canada through at least Aug. 2. As of July 27, Environment Canada has issued red (highest level on a three-tier scale) heat warnings across the affected area. In British Columbia Province, the highest daytime high temperatures of 35-41 C (95-106 F) and early morning low temperatures of near 18-21 C (64-70 F) are forecast across Arrow Lakes, Boundary, Fraser Canyon, Nicola, Okanagan Valley, Shuswap, Similkameen, Slocan Lake, and South Thompson as well as West Kootenay, Kootenay Lake, and southern East Kootenay including Cranbrook and West Columbia through July 31. Daytime high temperatures of 31-36 C (89-97 F) are likely across the southern parts of the province, with 25-30 C (77-86 F) likely near the water while daytime high temperatures of 29-34 C (84-93 F) and early morning low temperatures of near 14 C (57 F) are forecast across the rest of British Columbia Province over the same period.
Daytime high temperatures of 29-34 C (84-93 F) and early morning low temperatures of near 14 C (57 F) are forecast across portions of central and southern Alberta Province through at least Aug. 2. A cold front is forecast to begin tracking southwards across the province from July 29, alleviating the high temperatures in northern Alberta. Officials could update and possibly extend the coverage of weather alerts over the coming days.
The high temperatures may result in increased energy and water demand and an increased risk of heat-related illnesses such as heat exhaustion and heat stroke. Authorities are advising the general public to avoid prolonged exposure to direct sunlight, wear loose and light clothing, and stay hydrated.
Hazardous Conditions
The extended period of oppressive heat and dry conditions may produce ideal circumstances for wildfire growth throughout the region. Heatwaves also pose a threat to vulnerable groups - such as the elderly, children, pregnant women, and those with respiratory illnesses - due to the increased possibility of heat stroke or heat exhaustion during prolonged exposure to high temperatures. These health risks could also extend to relatively healthy individuals during significant heatwave events.
Transport and Utilities
Very high temperatures may warp rail tracks and force passenger and freight trains to operate at reduced speed. Road surface damage is also possible, and overheated vehicles may worsen traffic problems in urban areas where congestion is already a problem. Commercial trucking disruptions might occur as very high temperatures stress engines, making tire blowouts more common. Major flight disruptions are unlikely, but general aviation disruptions are possible, and some airfreight carriers could reduce cargo loads. High temperatures could lead to an increased demand for electricity, which might trigger localized brownouts or blackouts, exacerbating hazardous conditions when air conditioning is no longer possible.
Advice
Monitor local media for weather updates and related advisories. During heat waves, remain indoors in air conditioning when possible. If outdoor activities are necessary, frequently rest in shaded areas; avoid activity during the hottest times of the day. Stay well hydrated by drinking plenty of fluids. Avoid alcoholic beverages, which are dehydrating - drink bottled water or water that has been boiled. Wear loose-fitting, light-colored clothing. Cotton fabrics are more cooling than synthetics. Promptly seek medical attention if signs of heat exhaustion or heat stroke develop. Charge battery-powered devices in the case prolonged electricity outages occur.
