Record-setting rain drenches Northwest even more than usual

Warm water evaporates faster. Warm air can hold more moisture. When the moist air comes into contact with cooler air, the result, as was predicted by scientists, is heavier precipitation, whether rain or snow. And tornadoes result from the collision of warm and cooler air. But that's ok. We are such weak wimps we can't possibly be expected to go to the trouble of changing any of our habits.

Of course, the same facts mean that droughts are worse in some areas. Double whammy.

http://usnews.nbcnews.com/_news/2013/09/30/20755408-record-setting-rain-drenches-northwest-even-more-than-usual?lite

By M. Alex Johnson, Staff Writer, NBC News
Sept. 30, 2013

A massive rainstorm was setting records Monday across the perennially soggy Pacific Northwest, accompanied by damaging winds and even an extremely rare tornado that damaged a Boeing plant and tipped over rail cars in Washington state.

-----