December 17th, 2025 Timelapse
On December 17th, the morning began with a calm yet cloudy atmosphere, where the surface wind averaged around 9.3 mph. As the day unfolded, winds at 100 meters aloft were noticeably stronger, averaging 17.3 mph, creating a distinct contrast between the surface and higher altitudes. This difference in wind speed resulted in gentle turbulence at lower levels, while the clouds above began to shift steadily. The cloud cover was substantial, with an average of 59.8% obscuring the sky, composed of 25% low clouds and 53.2% mid-level clouds. Despite a brief drizzle that resulted in 0.01 inches of precipitation, the clouds remained predominantly mid-level, giving the sky a soft, gray hue.
As midday approached, conditions evolved significantly. Surface winds increased slightly to 10.8 mph, while the winds at 100 meters continued to hover around 17.4 mph, maintaining that notable wind shear. The cloud cover thickened further, reaching an average of 85%, with low clouds rising to 47% and mid-level clouds to 67.5%. High clouds also made an appearance, contributing to 54% of the total cloud cover. The interplay between the winds at different altitudes caused the lower clouds to drift more slowly than those higher up, creating a fascinating visual tapestry in the sky. With precipitation accumulating to 0.02 inches by this point, the atmosphere felt increasingly damp, and the clouds appeared heavier, hanging low and thick across the landscape.
By evening, winds remained stable, with the surface max reaching up to 21.4 mph and aloft maxing out at 36.5 mph. The cloud cover persisted at around 86.6%, and the layering of clouds became more pronounced as the day transitioned into night. The mid-level clouds began to dominate, casting a darker veil over the landscape while the high clouds drifted swiftly across the sky, influenced by those stronger upper-level winds. The turbulence from the conflicting wind directions continued, contributing to the dynamic movement of the clouds. The precipitation total for the day rose to 0.33 inches, marking a day characterized by a blanket of clouds and shifting winds that painted a dynamic and ever-changing winter sky.
December 17th, 2025 Timeline
Screenshots with weather data (wind layers, clouds, precipitation)
Weather Info for December 17th, 2025
Sunset: 4:27 PM