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As B.C.’s next atmospheric river arrives Tuesday, here’s what to expect

Click to play video: 'B.C. floods: Province extends state of emergency with third storm looming' B.C. floods: Province extends state of emergency with third storm looming
The provincial state of emergency is being extended into the middle of December, as a third major storm heads this way. Gas rationing measures are also staying place, and drivers are being warned to stay off the roads during the next atmospheric river. As John Hua reports, the Central Coast is becoming an area of concern – Nov 29, 2021

B.C. is watching and waiting to see what will happen when the third atmospheric river arrives Tuesday.

This one follows on the heels of the huge rainfall event from Nov. 13 to 15 and then another storm that hit over the weekend.

Click to play video: 'B.C. floods: Third atmospheric river set to arrive in B.C. on Tuesday will ‘pack a punch’' B.C. floods: Third atmospheric river set to arrive in B.C. on Tuesday will ‘pack a punch’
B.C. floods: Third atmospheric river set to arrive in B.C. on Tuesday will ‘pack a punch’ – Nov 29, 2021

Armel Castellan, a warning preparedness meteorologist with Environment and Climate Change Canada, said Monday B.C. is in a 24-hour break at this time.

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He said the second storm that happened over the weekend was “impactful.”

About 104 millimetres fell in Abbotsford, while 127 millimetres was recorded in Hope.

The third atmospheric river is coming from the Phillippines, Castellan said, and will deliver a “relatively strong punch” similar to what we saw this weekend.

Click to play video: 'B.C. extends state of emergency ahead of another atmospheric river' B.C. extends state of emergency ahead of another atmospheric river
B.C. extends state of emergency ahead of another atmospheric river – Nov 29, 2021

Read more: B.C. extends state of emergency as third atmospheric river looms

Between 50 and 100 mm of rain is expected to fall on the South Coast during the next storm, Castellan said, with 50 closer to the border and more along the North Shore Mountains.

Hope could see between 60 and 90 mm, he added, while Abbotsford could receive between 40 and 70 mm, along with the Coquihalla Summit.

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Click to play video: '‘People just wanna get back home’: Some evacuation orders in B.C. return before next storm' ‘People just wanna get back home’: Some evacuation orders in B.C. return before next storm
‘People just wanna get back home’: Some evacuation orders in B.C. return before next storm – Nov 29, 2021

Castellan said one of the big concerns will be the potential for snow melt in some regions, which could add to the overall water totals.

“It will be problematic because (the storms) are coming so close back-to-back with the runoff and the saturated soil,” he said.

Read more: B.C.’s gas rationing extended as Trans Mountain Pipeline remains shut down

But the South Coast is not the only area of concern with this new storm.

The North Coast could receive up to 40 cm of snow followed by freezing rain, Castellan added. This will impact areas such as Terrace and Stewart.

Click to play video: 'New drone footage from Abbotsford B.C. highlights widespread flooding' New drone footage from Abbotsford B.C. highlights widespread flooding
New drone footage from Abbotsford B.C. highlights widespread flooding – Nov 29, 2021

In the Interior, such as Golden and Shuswap, the transition to higher freezing levels will bring a lot of rain, he added and the Central Coast, such as Bella Coola and Bella Bella, will get the most rain – in some cases up to 200 mm could fall.

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Castellan said some strong winds are also expected, which could make clean-up efforts even more problematic.

The province will then get another break Thursday and Friday before a weaker weather system will move in Saturday, Castellan added.

Click to play video: 'Substantial change in B.C. weather coming Tuesday' Substantial change in B.C. weather coming Tuesday
Substantial change in B.C. weather coming Tuesday – Nov 29, 2021

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