B.C. weather: High streamflow advisory issued for North Okanagan, Shuswap

With rain drenching B.C.’s South Coast, a high streamflow advisory has been issued for parts of the North Okanagan, Shuswap and Columbia regions in the Southern Interior.

The River Forecast Centre says areas under the advisories include the North Thompson, South Thompson and Upper Columbia basins, where river levels are either rising or expected to rise rapidly, though flooding isn’t expected.

Earlier Wednesday, Environment Canada issued a rainfall warning for Metro Vancouver, and projected that the day would see 50 to 90 mm of rain.

1:55 Rainfall warnings blanket B.C.’s South Coast as first fall atmospheric river arrives

“A Pacific weather system over the region is bringing abundant moisture from the subtropics,” said the national weather agency. “Rain, heavy at times, will continue today then  ease to periods of light rain tonight as the system weakens.”

In the Howe Sound and Whistler area, 60 to 120 mm of rain is in the forecast.

In the Interior, Environment Canada said the West Columbia region could see 10-20 mm of precipitation — down from an estimate of 30-50 mm earlier Wednesday. The rain is expected to ease to showers by Thursday morning.

2:04 B.C. evening weather forecast: Oct. 17