This happens to me when I wear Alden loafers in certain lasts. I use a combination of a tongue pad, and a heel pad to prevent heel slippage. The Walgreen's ones are pretty soft and adhere to the shoes quite well. Thicker/long shoes can be a help as well. The cause of this might either be that...
Didn't China shoot a rocket into the skies to blast away some rain clouds for the Olympics? It's not nearly as severe as manipulating an earthquake, but it is considered as weather manipulation. If this is true, it means that weather manipulation is not new to China.