DON’T MISS: Canada Monthly Outlook: Summer soars in September Super typhoon Hinnamnor grew into a nuclear powerhouse of a storm as it churned east of the Philippines this week. The typhoon peaked at the equivalent of a category five hurricane before gradually weakening over the past 24 to 36 hours. Forecasters expect the hurricane to re-strengthen as it moves north this weekend. Hinnamnor could regain much of its strength in the coming days, threatening parts of southern Japan as the equivalent of a category four storm. The hurricane will produce damaging winds, flooding rains, rough seas and storm surge along its path. This system could have significant impacts on South Korea, particularly if the center of the storm is located near or over the southern tip of the Korean Peninsula, as predicted. Regardless of the storm’s intensity, 200 to 300 mm of rain could fall across South Korea as Hinnamnor moves through the region, which could lead to significant flooding and mudslides across the country. Hinnamnor will lose strength as it rises higher in latitude, eventually losing its tropical characteristics as it clears eastern Asia and races toward the northern Pacific Ocean. Even after it dissipates next week, the former hurricane’s influence will still have an area stretching thousands of kilometers across Canada.
SEE: Hurricanes, typhoons, tropical cyclones… what’s the difference?
Recurring hurricanes are notorious for changing the jet stream as they race toward polar latitudes. This disturbance can strengthen the jet stream, leading to deeper troughs and stronger ridges that can have a profound effect on downstream weather. We could start to see Hinnamnor’s influence on the jet stream here in Canada in about ten days. It’s too early to tell what specific impact this disruption of the jet stream would have on conditions across the country, but it could bring about noticeable temperature changes—either on the warmer or cooler side—during its passage. Check out our monthly outlook for more details on the patterns you can expect from September in your corner of Canada. Stay tuned to The Weather Network for the latest as we track this developing pattern.
