Gljúfurárfoss tumbles off the same cliffside as the better-known Seljalandsfoss, and a few hundred yards away. This isn’t even its main falls, which tumble into a hidden rock chute and slot canyon, but a wondrous little side discharge framed by lush vegetation and adding to the overall spillage. Iceland contains countless many such watery marvels! 1 N Seljaland, Iceland (16 Aug 14) Looking … [Read more...]
Pileus Capping Overshoot
This distant but splendid specimen of double-layered pileus formed atop an explosively convective, overshooting flanking tower for a heavy-precipitation (HP) supercell in northeastern Oklahoma. Behind the big tower, and above the anvil, we can see a small segment of another overshooting top. Knuckle clouds roll under the anvil on both sides of the big tower. This whole scene just before sunset … [Read more...]
The North Faces
Woods of the Western Crosstimbers stood in a forlorn and shadowy beauty, in the final flurries of a New Years Day snow dump. Riding a north wind, some of the very wet, sticky snow accumulated on the sides of the trees, as well as atop and beneath. At the bottom of the snow lay a soaked layer that dripped when shoveled, while even the top parts oozed water when squeezed—testament to both ground … [Read more...]
A Supercell’s Sunset Dawn
This cumulonimbus had a narrow updraft and forward-flank core area, opaque enough to see the subtle refracted reds of sunset through both the updraft tower and precip core at right. But it was merging with a larger cell just to its north (right side, out of picture); and the combined storm would rapidly wind up into a tornado-producing supercell after dark. Just when I thought I was taking in … [Read more...]
Mammatus Field over Wheat Field
Ripening wheat waved in the inflow of a supercell whose updraft whirled eruptively to my back. The storm pumped out an extensive anvil with rings of mammatus, and commanded due attention to its rotating base, except for a few moments now and then, when an observer was compelled to look around and appreciate the entire panorama of cloud forms. 6 NW Ryus KS (19 Jun 7) Looking SE 37.5618, … [Read more...]
Lowering Funnel
[Part 1 of 3] This funnel cloud was growing vertically, with the condensation soon to rise directly off ground several times in a circulation that was tornadic throughout. Funnel clouds and tornadoes, in fact, don't "touch down". That's because the air in them is rising. What happens is that a lowering in pressure, and/or an increase in humidity of the inflow air, causes the bottom of the … [Read more...]
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