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Brewing super El Niño adding fuel to North Okanagan's water concerns
Hayley Dosser said the event is likely unprecedented and could worsen drought, with a 77% chance of low snow water equivalent near Vernon in spring 2027.
Hayley Dosser, a scientist with the Canadian Centre for Climate Services, briefed Vernon council on Tuesday about a super El Niño building in the Pacific Ocean since September, warning of potential water shortages next year.
Ocean surface temperatures have passed three degrees Celsius above the baseline, creating a strong El Niño that sets the stage for extreme weather similar to winters in 1982-83, 1997-98, and 2015-16, Dosser explained.
Near Vernon, forecasters predict a 77 per cent probability of low normal snow water equivalent for spring 2027, caused by either less snow accumulation or an earlier than normal spring melt, Dosser said.
Intense winter storms increase risks of localized flooding or landslides, "and that has the potential to cause disruptions to transportation or infrastructure," Dosser cautioned, citing pre-existing drought conditions in the region.
Councillor Teresa Durning called the impacts "absolutely incredible," while Councillor David Scarlatescu urged better communication on water restrictions; the El Niño pattern is unlikely to persist beyond next summer.