This chappie who lives up near Manchester issues a fairly regular timelapse cloudscape online diary via Youtube, from which I have posted various links here in the past, mainly of stormy sequences, each "episode" of approximately 4 minutes' duration. From what I can make out, his camera points to the north-west. Here by contrast is his entry from yesterday, depicting in clear motion a day of capped inversions, suppressing convective cumulus growth. The first half of the day shows clouds buidling up in the low-level turbulence, producing drizzly showers, only then to flatten out and spread into stratocumulus "infill", while in the second half the cap has descended in the stabilizing air as high pressure has approached, so that all that are to be observed are fair-weather cumulus ("cumulus humilis") forming at the rising boundary layer, and building hardly at all before dissipating completely at sunset, when the descending sun can be seen sinking into a mass of approaching upper-level cirrus thickening out into cirrostratus - advance signs at sunset of the approaching warm front which is today producing the wet weather being experienced across northern England and Scotland.
Weather presents one of the few instances where nature "in the large" can be observed as it changes, and I think this footage is really beautiful.
Weather presents one of the few instances where nature "in the large" can be observed as it changes, and I think this footage is really beautiful.
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