As a fellow Californian, I can tell you that the rest of the country gets WEATHER. We do not. You've received a lot of good advice. Heed it. Change your travel plans if the weather isn't good. Case in point, about a year ago we were returning to the west coast from the Emerald Coast in Florida. When weather reports, I use Accuweather, predicted heavy rains in Sulphur, La., we elected to stay 3 extra days in Biloxi. Good thing. Reports of 8" of rain the day we planned to arrive there. 65 mph winds and at least one waterspout in the areas we would have been driving through. That same trip, leaving Houston, our plan was to spend the night in Dallas/Fort Worth. Remember the tornado they had about a year ago? That was the day. Accuweather told us of the possibility, so we stayed in Killeen instead. Point is, watch the weather days ahead of time. NOAA radio was in the coach when we bought it. It is great for notification of immediate dangers. Here's the main thing a Californian needs to understand. People in the areas that get these storms are ridiculously complacent about them. Do not let them lull you into a false sense of security about them. When appropriate, we seek out RV parks with storm shelters. Our inquiries are usually meet with knowing chuckles and assurances that " . . . We never have tornadoes here." Traveling thru Joplin about a decade ago, I was told that very thing.