The Weather Networks offers this insight into what happened. The jet stream stalled with a high pressure ridge in the north, A low pressure zone formed in Southern Alberta which drew in warm air from the Gulf of Mexico 4,000 km away.
http://www.theweathernetwork.com/news/a ... rain/8124/
The warm air dropped its load when it reached the Rockies. Most of it fell or drained into Alberta.
Suggests that it could also happen to BC west of the Rockies. Though, IMO, bad events are more likely to happen to regions east of the Rockies. The Great Plains offer an unobstructed channel from the tropics.
Can this storm be attributed to climate warming.
As David Suzuki points out, it is difficult to associate a single event with the process of climate warming. However, this storm should be a wake up call.
http://www.huffingtonpost.ca/david-suzu ... 5.html?amp
Climate models predict that the jet stream will flow with less vigour as temperatures between the north and the tropics narrow. Therefore, extreme events will occur with greater regularity and strength.
Is Calgary sustainable if they get hit like this every ten years (or five years). The last big flood was in 2005, and it was a weenier compared to 2013.
Vancouver's problem is that we are likely to get more precipitation in a unpredictable manner.
“As the report points out, "Natural climate variability has always resulted in such extremes, but the physical characteristics of extreme weather and climate events are being increasingly shaped by climate change."
In many ways, climate change is about water change. For every one degree increase in temperature, the atmosphere's ability to hold water increases seven per cent. Massive amounts of water from melting ice sheets are being liberated while evaporation increases from oceans that cover 70 per cent of Earth's surface. Meanwhile greater turbulence and instability of the atmosphere and jet stream dump heavier loads of water and increase the frequency of extreme events like tornadoes and hurricanes.”
Did you think that we could use so much energy without serious consequences?
The long term problem is the rise in the sea level. The last time, the earth saw such high concentrations of CO2, it was several million years ago and the sea was 10 to 20 meters higher.
In the near future, expect more excitement from weather 'events'. It could be coming to your location soon!
Break out the popcorn.