Not sure if it was the news article about the foreign workers living in the basement of the Lethbridge Alberta Burger King or the warm wind blowing here at 4 am, but reminded me of the time an aquaintance and I left Lethbridge on our sleds heading west toward Fort MacLeod - anyway about half way there we observe what's known as a Chinook Arch - announcing a warm wind from the west which will raise temps 20 degrees or more in  a few minutes....     We barely had time to turn