February 18th, 2026 Timelapse
On February 18th, the day began under a blanket of thick clouds, with an average temperature of 33.9°F. Surface winds were gentle, averaging 7.5 mph, while winds at 100 meters were notably stronger at 12.7 mph, creating a mild wind shear. This difference in wind speed between the surface and aloft layers contributed to some turbulence, particularly in the lower cloud layers where the low clouds comprised 94.8% of the sky. The high cloud coverage, totaling 95.5%, indicated a persistent overcast, with mid-level clouds at 41.2% and high clouds at 14.0%. As a consequence of the gentle surface winds, the low clouds moved slowly, but the mid-level clouds began to drift slightly faster, adding a sense of dynamics to the otherwise stagnant morning scene.
As the day progressed into midday, the weather took on a slightly warmer tone, with temperatures rising to an average of 39.1°F. The surface winds remained relatively stable at 7.6 mph, but winds at 100 meters decreased slightly to 10.9 mph. Cloud cover reached an impressive 99.5%, with low clouds now dominating at 97.2% and mid-level clouds skyrocketing to 98.5%, while high clouds diminished to just 7.2%. The increased thickness of the cloud layers, combined with the gentle precipitation amounting to 0.02 inches, suggested a very moist atmosphere. The interaction between the different cloud layers was fascinating to observe, as the low clouds struggled to maintain their position against the faster-moving mid clouds, creating a layered effect that seemed to ripple across the sky. The turbulence intensified slightly, resulting from the differences in wind direction at various altitudes, which made for some interesting cloud dynamics overhead.
As evening set in, temperatures held steady at an average of 39.0°F. Surface winds dropped to 5.5 mph while the winds at 100 meters slowed further to 9.2 mph, creating a calmer atmosphere overall. Cloud cover remained dense at 99.5%, but there was a notable shift in the composition of clouds, with low clouds decreasing to 33.2% while mid clouds remained nearly saturating the sky at 99.2%, and high clouds increased to 83.5%. This change resulted in a more textured sky, where the high clouds began to filter the fading light, while the mid clouds maintained their presence, giving the sky a somewhat dramatic ambiance as the sun set. The evening also brought some residual effects of wind shear, with visible shifts in cloud movement, highlighting the interactions between different layers. Overall, the day unfolded in a symphony of cloud and wind, each element influencing the other, creating a captivating spectacle in the Northwest sky.
February 18th, 2026 Timeline
Screenshots with weather data (wind layers, clouds, precipitation)
Weather Info for February 18th, 2026
Sunset: 5:42 PM