Thunderstorms are predicted for the Southwest, but they will mostly develop over Arizona and parts of Utah. As for California, there is a very slight chance for thunderstorms in Southeastern California and Northern California (where dry lightening strikes caused over 1700 fires in the state since June 20). As for Los Angeles weather in the recent spate of hot weather predictions, Ken Clark, Expert Senior Meteorlgist with Accuweather.com says most of the reported extreme heat will be in Northern and Central California. "We're pretty much going to have fairly typical weather for this time of the year. It's nothing out of the ordinary." And if it does get really hot, LA County has opened cooling centers.