File photo (Image credit: CFJC Today).

By Aaron Schulze

30 to 60 MM

Heavy rainfall expected to pour over Coquihalla Highway from Hope to Merritt

Dec 4, 2023 | 5:17 AM

MERRITT, B.C. — Travellers on the Coquihalla Highway from Hope to Merritt will need to temporarily adjust from driving through heavy snow to dealing with heavy rain.

In a special weather statement online, Environment Canada says between 30 to 60 millimetres of rainfall is expected to pour on to the stretch of Highway 5 from Monday (Dec. 4) night until Tuesday morning.

The weather agency says light snow mixed with rain will begin late Monday morning, then gradually intensify to heavy rain Monday evening and continue through Tuesday morning. The heavy rainfall is expected to increase the risk of flooding and landslides.

It’s due to an atmospheric river setting up over B.C.’s south coast Monday.

Environment Canada also warns that weather in the mountains can change suddenly, resulting in hazardous driving conditions.

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Additionally, drivers travelling between Kamloops and B.C.’s south coast can expect 30 to 60 millimetres of rainfall through the Fraser Canyon.

Environment Canada says up to 30 millimetres of rain is expected for Lytton while Boston Bar can receive 60 millimetres by Tuesday morning.

The weather agency warns heavy downpours can cause flash floods and water pooling on roads. Localized flooding in low-lying areas is also possible.