Torrential rains and widespread flooding throughout southern Alberta on Thursday
washed out roads and bridges, sent residents scurrying for safety,
and delivered up surreal scenes of cars, couches and refrigerators
just floating away.
Officials
with the City of Calgary said as many as 100,000 people could be
forced from their homes due to heavy flooding, an evacuation that
would take place in stages over the next few days.
The
Bow River Basin was battered late Wednesday and into Thursday with up
to 100 mm of rain, bringing river levels to the breaking point. Parts
of Calgary along the Bow and Elbow rivers remained in the crosshairs
with residents in six low-lying areas out of their homes.
There
were flashpoints of chaos from Banff and Canmore and Crowsnest Pass
in the Rockies, to Calgary and beyond in the north and south to
Lethbridge.
The
flooding was particularly destructive in communities just south of
Calgary such as High River, Turner Valley and Black Diamond, where
the Highwood River swept away two people.
The
province reported that 12 communities were under states of emergency.
Environment
Canada issued a rainfall warning for the affected areas, estimating
as much as 100 millimetres more rain could fall in the next two days.
The
Alberta Energy Regulator reported flooding may have caused a sour gas
leak near Turner Valley. The flow of the toxic gas was turned off,
but late Thursday a small amount was still seeping into floodwaters
submerging the line. The Alberta Energy Regulator said public safety
was not threatened.
In the mountain parks, mudslides forced the closure of the Trans-Canada Highway, isolating Banff and Canmore. Campers at Two Jack Lakeside campground were moved to higher ground.
Highways
north and south of Banff were also shut down.
In
Canmore, some homeowners saw the raging Cougar Creek eat away half
their backyards, leaving behind crumbling wooden stairwells and
twisted fences jutting out over torrents of water. Power and gas were
out in some parts of town.
Source: nationalpost
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