but not long ago i was up at a place called chimney rock in southwest colorado. and it's over 8,000 feet. and you are up at the southern end ftd rocky mountains and there is this scarp of rock that rises up probably about a thousand feet out of a valley floor and right at the tip of this scarp there are two twin towers of rock. if you get to a certain place on top of this very narrow butte, you can see between these twin towers and there happens to be a great house built between these two towers and every 18.6 years when the moon goes into its northernmost point on the horizon, it rises between those two towers. i was there at the beginning of the last 18.6 year cycle and we stood up there, probably 20 of us, researchers, forest service people, all gathered at the same spot with cameras and huddled -- it was late december at 8,000 feet and we were all watching this gap. and somebody had done very intricate work to figure out exactly where you need to stand to see the light at exactly the right time. and as we were all gathered up there, i remember this older arch

i mean, to understand these, this one came out of a 13th century site in southwest colorado and i would sit with these bowls for hours and hours, drawing them into my sketch book because that was the only way i could really understand the complexity of how they got their symmetries to match up because i could never get them to match up in my drawings. i could never do a 100 percent accurate rendition of these because every line was meaningful, every line meant something about how you paint the next line, which is what it's like walking out there, looking for those shapes, looking for water, looking for springs, looking for places where the rain has fallen. it's all the same story out there. there is a 13th century or a 14th century polychrome vessel from below the mugion rim in central arizona. and this is 100 years after the anastazi supposedly disappeared, there's that story about one day this whole civilization just vanished. but if you start following the civilization, you can find where it went. you can find this culture's movement across the land. these images inside this bowl cam

southwest. the four corners region, utah, colorado, new mexico. they get that summertime monsoon but that moisture is coming to us. it's getting closer to us. we're getting the thunderstorms. here's the reason we're staying cool as well. a spin just off the coast giving us the thick fog during the overnight hours and also the breeze during the afternoon. especially out of the southwest. so having said that, temperatures will be a lot cooler than average. 10 to 15 degrees cooler than average tomorrow. thunderstorms in the sierra nevada as well and then we'll start to see those be gone by wednesday or so. temperatures running cooler than average. tomorrow's high 60 in san francisco. 81 in livermore. mid-70s for napa and sonoma counties. the santa clara valley. warm pockets we were just talking about right in through morgan hill only into the lower 80s. seven-day forecast. it's going to be cool and breezy each day through wednesday. diane, next weekend we're warming up. but the warm-up, only in the mid-80s. >> it's very -- we have to have a heat wave

colorado. another reason we are getting the strong winds is there a spin to the west. notice the airflow from the south and southwestm that system right off here. this direction coming off. we've got the plume of moisture pulling up along the sierra. something to watch. this feature here is not moving anywhere. it is not, the fog is getting deeper and blowing in to inland. we continue to cool off next week. if you are waiting for warmer temperatures, it is not happening. tomorrow sunny, uv index up to about ten so remember the sunscreen. 67 for the high. 62 in san francisco. people running in the half marathon and marathon tomorrow. 77 for san jose to 77 in napa. look at those numbers. where are the 90s? >> where are they? >> discovery bay. >> seven-day forecast, cooler next week. >>> a lot going on with the giants. the giants showing no signs of slowing down despite a scary moment that sent velez to the hospital. the latest on his condition. the a's busting out the th satt a e expense of the white sox. highlights next in sports. what this droid does will change how you do movies. with blockbuster on demand, this do

hot area over the desert southwest, the monsoon, it's that time of year, they get the after thunderstorms popping up over arizona and new mexico and colorado and utah, but some will expand our direction. we've had a spinl off the coast that's giving us the cooler conditions. it's starting to move off just a bit to the west, so when it does it will not give us the stronger push that we've had over the past several days, we'll still be on the mild side, but some of the heat will start to come our direction a little bit and some of the moisture will go up the spinal of the sierra nevada if you're heading over there the weekend, watch out for thunderstorms. and dog day at the park. the a's taking on the white sox today. go to their website, you might have to register your dog if you plan on taking them. have an early start to the day, 7:05 is game time. clear to start the day. in the afternoon hours we'll get the cloud cover and the fog coming in. 70s and 80s as you're planning your day. by noon, 70s, and mostly sunshine across most locations exce the immediate coast. the fog will hug the coast most of the day. mid-60s there. 64 in san francis