SF's micro-climates

This was from a few afternoons back when it was gorgeously sunny, and we decided to take a quick drive. We chose Twin Peaks that we can see from our living room so mom could view back where we live. It was hot and beautiful in Potrero Hill, but we could see the fog rolling in on the peaks, so we bundled up. It was freaky windy! My mom couldn't believe that just 20 minutes away the weather could be so different. She had thought it strange that no one planted trees on Twin Peaks...until she got up there and realized the wind just would not allow that. I laughed so hard watching her and Dav have fun with the wind.