Canada – Flash Floods Hit Vancouver

Flash flooding on 11 December, 2018, caused severe transport problems in parts of Vancouver, Canada.

Roads and highways were submerged. Local news reports said that emergency crews responded to at least 30 calls for vehicles in flood-related emergencies. The heavy rainfall also caused issues for transit services on the Expo Line (TransLink) service after tunnels were flooded.

Between 30 to 60 mm of rain fell in a few hours in parts of Vancouver. Port Mellon, situated around 35 km North West of Vancouver, recorded 77mm of rain in 24 hours to 11 December.

Environment Canada said that the heavy rain was brought by the first in a series of December storms that moved across coastal British Colombia. Weather warnings have been issued for wide areas of British Colombia over the coming days, in particular for heavy snow.

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Flood Summary

Last updated: January 16, 2019
Event
British Colombia, Canada, December 2018
Date
December 11 to December 12, 2018
Type
Urban flood, Flash flood
Cause
Extreme rainfall

Locations

A - Vancouver (Canada)
B - Vancouver - Rainfall level 49 mm in 24 hours
C - Port Mellon - Rainfall level 77 mm in 24 hours
D - Mission, British Columbia, Canada - Rainfall level 62 mm in 24 hours

Magnitude

Rainfall level
49 mm in 24 hours
Vancouver - December 11 to December 12, 2018
Environment Canada figures
Rainfall level
77 mm in 24 hours
Port Mellon - December 11 to December 12, 2018
Rainfall level
62 mm in 24 hours
Mission, British Columbia, Canada - December 11 to December 12, 2018

Damages

Rescued
30 people
Vancouver - December 11 to December 12, 2018
Roads and highways were submerged. Local news reports said that emergency crews responded to at least 30 calls for vehicles in flood-related emergencies. The heavy rainfall also caused issues for transit services on the Expo Line (TransLink) service after tunnels were flooded.