A previously unassuming, strung-out and poorly organized supercell hit a plume of greater low-level moisture and vorticity, accompanying a modified outflow boundary from the previous night's thunderstorms. It got happy quickly. This wall cloud formed fast and rotated strongly. The front-lit scud lowering in the foreground raced left to right as cloud material in the background pulled the other … [Read more...]
Busted Trees at NWC
The October 2020 ice storm snapped many tree branches across the National Weather Center's grounds, certainly including unaccustomed nonnatives like these Chinese pistachios. The early-season (fall) ice storm wasn't large in magnitude, with accumulations generally around 1/4 to 1/3 inch here. However, because it happened while so many leaves still were green, or just starting to change color, … [Read more...]
Indirect Sunrise Color
This would become a spectacular sunrise over Mount Desert Island, but was well on its way even here. The sun still was below the horizon, even from the perspective of the altocumulus and altostratus cloud deck's underside! So how did it redirect such a rusty, chocolate-red tint? This was all indirect light, reflected from distant, unseen, directly lit clouds over the horizon and far out over … [Read more...]
Maine Coast Moonrise
Rising across a colorful, textured twilight sky, the waxing moon refracted a partial lunar corona through a passing, rippled cirrostratus undulatus cloud, all while reflecting enchantingly off the Atlantic Ocean surface. Waves crashed across the hard igneous and metamorphic boulders, adding audio to the dazzling visuals, and feathered fringes to this short time exposure. How fortunate and … [Read more...]
Stormy Peach and Turquoise
With this significantly severe supercell's back side still blasting Belle Fourche, the front end churned east-southeast quickly. Its mesocyclone region, at center-right, was a roiling cauldron of rain, hail, wind, and perhaps more, inside broad and obvious rotation. Condensation near ground level can be seen beyond the low ridge in the distance, and yes, some of it appeared to be turning. … [Read more...]
Undular Mountain View
Ridges and summits of the southern White Mountains, as seen from the 6,288-foot summit, rippled off into the distance, where (unlike the clear blue you don't see overhead) thick cirrus occupied that sky sector near the horizon. Although it was a calm, clear day atop Mt. Washington, a deep zoom through the thickest part of the troposphere maximized the sight path through particulates in the … [Read more...]
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