September 18th, 2026 Timelapse
On September 18th, the day dawned softly under a blanket of low clouds, which covered approximately 73.5% of the sky. At the surface, winds were light, averaging just 1.8 mph, allowing the early chill of 55°F to linger in the air. As one looked up, the clouds appeared to be anchored in place, drifting slowly due to the slightly stronger winds at 100 meters that registered an average of 2.7 mph. The relative stability in both temperature and wind meant that conditions felt calm, but there was a hint of movement in the atmosphere as the low clouds began shifting ever so slightly. With no mid or high clouds present, the sky was a canvas of gray that promised a cozy, albeit cloudy, morning without precipitation.
As the day progressed into midday, the atmosphere began to stir, bringing with it a gradual increase in surface wind to an average of 2.4 mph, while the winds at 100 meters climbed to 3.3 mph. This slight uptick in wind speed allowed the low clouds to break apart, reducing overall cloud coverage to 53.8%. The clouds seemed to respond to the gentle push from the surface, beginning to scud across the sky, creating a dynamic interplay of light and shadow on the ground below. Despite this increased movement, the winds remained fairly consistent in direction, with only a minor shift noted at the surface. Nonetheless, the subtle wind shear between the lower and upper layers created gentle turbulence, allowing the clouds to dance and shift in a captivating manner.
By evening, the weather had transformed markedly, with temperatures rising slightly to an average of 65.7°F. The surface winds picked up a bit more, averaging 5.7 mph, while the winds aloft reached a maximum of 8.0 mph. This stronger breeze effectively cleared the skies, reducing cloud cover to a mere 0.6%. The previously dreary overcast was replaced by expansive blue skies, creating a stark contrast to the morning's cloudy scenes. The increase in wind speed also contributed to a more turbulent atmosphere, especially near the surface where lighter winds encountered the stronger layers above. The evening offered a clear view of the horizon as the sun set on what had been a day of transformation, showcasing the interesting effects of wind and cloud dynamics that unfolded throughout the daylight hours.
September 18th, 2026 Timeline
Screenshots with weather data (wind layers, clouds, precipitation)
Weather Info for September 18th, 2026
Sunset: 7:17 PM