…overbright areas fade as the sun sets away from the point-of-view. Looking east in the late afternoon, you can observe ‘the City’ from afar, behind the long red bridge. Wind on water currents make ripples, as is the traffic on the 101 Highway that spans the bridge. Shadows become longer as the sun sets first on the foreground grassy slopes, and then the ocean bay. Time-lapse length (30 fps): 13 seconds and 20 frames.
…over ocean time-lapse. Intricate and delicate, the underside of these clouds are illuminated minutes after the sun has set to the observer. How is this? The sun is below the horizon to the observer, but not to the sky above. At that moment, you would still see the sun if in an airplane at that height. You would be in its light, as are these clouds. Since these clouds are attached to a storm, their altitude could in fact be 30,000 ft or more. This would make sense, due to the low movement of the delicate parts of the cloud, which would have frozen droplets. Some lower clouds that make up lower thunderstorm bodies have a mix of frozen droplets, gaseous vapor, and liquid.
On a sliver of ocean with distant palm trees silhouetted far away, another younger storm is at the right of the lower frame portion. Blue sky persists in an area that homes other colorful clouds at higher altitudes of 45000 feet, or about 15000 m. The sun sets and the ‘mammatus’ clouds from the storm redden. Time-lapse length (30 fps): 25 seconds and 10 frames.
The brick-red Golden Gate Bridge spans the frame, never-ceasing traffic flow pouring through. Under, beyond, and before, ships of all sail, motor, and port into the bay. Observe baby-sized waves on the headlands below, made apparent by the time-lapse. Time-lapse length (30 fps): 26 seconds and 18 frames.
From a unique viewpoint on Yerba Buena island, the Bay Bridge has two directions of traffic on different levels, and is a gateway into the city. The skyline is silhouetted on the evening light. The daylight is left with the sun and transitions to night, and thousands of cars and vehicles pass through the bridge during this time. Time-lapse length (30 fps): 13 seconds and 10 frames.
Looking down a side-street in mid-town San Francisco at a view of several large buildings including a sharply-pointed skyscraper called ‘Transamerica Pyramid’, an ominous looking building of office space and nearly 900 ft (300 m) tall. Busy city streets, with mid-2000s cars, cross paths, as traffic alternates turns moving with the traffic lights. This side street the observer looks down is dimly lit and mostly empty, a steep downward slope. Time-lapse length (30 fps): 32 seconds and 8 frames.
A bright marine fog layer slowly evaporates around the Golden Gate Bridge, a small ship is seen exiting as the fog recedes. The Marin Headlights are exposed to day in the middle ground between this point of view and the bay. Time-lapse length (30 fps): 9 seconds and 16 frames.
A fog manages to cling to visibility moving into the bay, especially on the left of the frame, and shadows rise from the headlands on the hills. A cargo ship is seen mid-way through the clip exiting the bay. The city is fully visible in the distant left. Time-lapse length (30 fps): 13 seconds and 1 frame.