Next atmospheric river could bring B.C. triple-digit rain totals

Next atmospheric river could bring B.C. triple-digit rain totals

We’re watching the potential for triple-digit rainfall totals across portions of British Columbia this weekend as the second in a series of atmospheric rivers takes aim at the province.

Folks across B.C. spent the day Friday cleaning up trees and power lines felled by gusty winds that accompanied the region’s first atmospheric river a day earlier. Those winds knocked out power to more than 40,000 customers across the province at the height of the storm.

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While the gusty winds that caused so many outages subsided on Friday, winds will pick up again Saturday across the North Coast as the next system approaches the province.

Communities across the North Coast could see wind gusts of 60-80+ km/h by Saturday afternoon.

BCWinds
BCWinds

The region’s next atmospheric river will target the coast this weekend, bringing the potential for very heavy rainfall and high-elevation snow through early next week.

BCSunAM
BCSunAM

We’ll see precipitation slide down the coast Saturday night through Sunday, with precipitation lingering into Monday for some areas across the South Coast. This could interfere with any outdoor Halloween plans during the evening hours.

WATCH: B.C. hydro warns of power outages this storm season

Click here to view the video

Precipitation totals will vary based on terrain, but an additional 50-150 mm could fall throughout the weekend.

Forecast models suggest this next atmospheric river will be categorized as an AR2 -- providing beneficial rain, but still worth monitoring for some localized hazards.

BCRain
BCRain

While these waves of moisture look to bring the much needed rains to the drought-stricken regions of B.C., too much moisture in a short period of time could also bring the threat for localized flooding. Dry soils struggle to absorb moisture. Ongoing drought conditions combined with heavy rainfall could lead to more water running off than absorbing into the ground.

Droughts don’t clear up immediately either, and it often takes several systems to tip the balance towards a more traditionally wet pattern.

BCFz
BCFz

Freezing levels are forecast to rise over 2000 metres for the South Coast on Sunday, so expect messy travel through some of the mountain passes this weekend as well.

While the month looks to end on a drier not for coastal communities, B.C. could face the prospect of another atmospheric river heading into the end of next week.

Be sure to check back for the latest on conditions across B.C.