This NOAA satellite image taken Friday, September 7, 2012 at 11:00 AM EDT shows showers and thunderstorms over Arizona. A cold front extends into the central and northern Rockies with areas of ... more 
This NOAA satellite image taken Friday, September 7, 2012 at 11:00 AM EDT shows showers and thunderstorms over Arizona. A cold front extends into the central and northern Rockies with areas of showers. Clear skies are seen over much of the Northwest United States. (AP PHOTO/WEATHER UNDERGROUND) less 
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Associated Press
Fri, Sep 7, 2012 4:13 PM EDT