September 12th, 2026 Timelapse
On September 12th, the day began under the veil of extensive cloud cover, with an impressive 94% average coverage that blanketed the sky. At the surface, winds were gentle, averaging just 3.2 mph, while winds aloft at 100 meters were slightly stronger, averaging 4.5 mph. This subtle difference in wind speed contributed to the movement of low clouds, which comprised about 39.5% of the total cloud cover. The clouds were a mix of low, mid, and high layers, with mid-clouds dominating at 87.2% and high clouds at 79.8%. This thick cloud layer prevented significant sunlight from reaching the ground, resulting in a cool morning temperature of around 54.5°F. As these winds mingled with the thick cloud cover, they generated some minor turbulence, particularly as the surface winds changed direction multiple times throughout the morning, creating swirling patterns that added a dynamic feel to an otherwise quiet scene.
As the day progressed into midday, the cloud cover intensified further, reaching a striking 99.8% average. Low clouds surged to 87.2%, mid-clouds grew to a staggering 98.8%, and high clouds maintained a robust presence at 90.2%. At this point, wind speeds remained relatively stable at 3.2 mph at the surface and slightly increased to 4.6 mph at 100 meters. However, the direction of the winds aloft shifted, contributing to a noticeable shear effect. This wind shear caused the clouds to move at different speeds and in various directions, leading to dramatic visual effects in the sky. The thickening clouds hinted at impending precipitation, although raindrops had yet to make an appearance, creating an atmosphere rich with anticipation.
By the evening, the weather evolved once again, with a slight decrease in cloud cover to an average of 88.7%. The low clouds returned to 39.5%, mid-clouds receded to 65.7%, and high clouds settled at 48.3%. The surface winds slowed to an average of 2.2 mph, while the winds at 100 meters decreased to 3.6 mph. This reduction in wind speed fostered a calmer atmosphere, yet the lingering effects of the earlier turbulent conditions were still evident, with layered clouds creating a complex tapestry across the sky. Precipitation finally made its mark with 0.07 inches recorded, adding a refreshing touch to the cooling air. The evening wrapped up with the temperature at 58.8°F, showcasing a day where the interplay of winds and clouds told a captivating story of nature's dynamic artistry.
September 12th, 2026 Timeline
Screenshots with weather data (wind layers, clouds, precipitation)
Weather Info for September 12th, 2026
Sunset: 7:28 PM