Expired News - Oho to bring gusty winds, heavy rain to Canada. Here's when - The Weather Network
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Post-tropical cyclone Oho is advancing northeast in the Central Pacific on track toward the Pacific Northwest.

Oho to bring gusty winds, heavy rain to Canada. Here's when


Leeanna McLean
Digital Reporter

Thursday, October 8, 2015, 1:22 PM - Post-tropical cyclone Oho is advancing northeast in the Central Pacific on track toward the Pacific Northwest.

As of Thursday morning, Oho is located northeast of Hawaii with maximum sustained winds of 110 km/h, according to the National Hurricane Center (NHC).

Oho has brought high surf and flash flooding to eastern sections of Hawaii. It is forecast to weaken through Thursday, losing its tropical characteristics as it moves toward Western Canada. Environment Canada has issued wind and rainfall warnings for parts of B.C.

While tropical systems are known to move northeast in the Central Pacific, there hasn't been a storm that has formed in October or later south of Hawaii with a northeast trajectory since 1949.

As the northward moving storm in the Pacific encounters colder waters it loses its punch. However, in this case given the persistent El Nino pattern, sea temperatures have been warmer than usual.

Oho's remnants are expected to get pulled northeastward by a large upper-level trough forming in the Gulf of Alaska. The trough along with a series of surface lows will help channel multiple waves of moisture, heavy rain and gusty winds to parts of the Pacific Northwest and B.C. However, no extreme impacts are expected.

Some higher elevations in north and central coasts of B.C. could see local rainfall amounts of up to 200 mm, while Vancouver could see up to 50 mm, The Weather Network meteorologist Tyler Hamilton noted. As a result, Haida Gwaii, north and central coasts remain under a rainfall warning.

"The remnants of Hurricane Oho will approach the North Coast tonight as a strong post-tropical low pressure system. Strong southeasterly winds of 70 to 110 km/h will develop over Haida Gwaii, Central Coast - Coastal Sections, and North Vancouver Island overnight as the low approaches," Environment Canada reported Thursday morning. "Winds will ease off late Friday morning as the low moves quickly north of the region. Damage to buildings, such as to roof shingles and windows, may occur. Loose objects may be tossed by the wind and cause injury or damage."

With the tropical origin of the low, heavy rain will affect the North Coast and Haida Gwaii Thursday evening into Friday, Environment Canada reports. Rainfall amounts between 50 and 70 mm can be expected across the region.

With heavy rain comes the risk of flash flooding and mudslides.

Tune into The Weather Network on TV for continued updates on this system.

Source: The Weather Network | NHC

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