The rear part of the storm is where tornadoes are likely to spawn as the downdraft in the flanking line meets the rotating updraft. |
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It is caused by the tremendous updraft and downdraft winds within the thunderstorm. |
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There was no one to overhear them save a speckled chicken hawk circling lazily on the updraft from the mountain. |
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A solitary chicken hawk circled so slowly on a high updraft of air that he looked to be hanging motionless, a small brown kite. |
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Once ignited, the updraft of air within the flue will feed this chimney fire, causing it to grow rapidly and producing very high temperatures. |
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After noting a distinct updraft and some rather severe hail, I was almost certain we were about to be hit by a tornado. |
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The large hawks, called Buteos, often drift overhead without flapping their wings while they ride an updraft of warm air, known as a thermal. |
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A blonde was scurrying across the parking lot, her hair caught in the updraft of the wind. |
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A strong updraft allows hailstones to grow large enough to reach the ground. |
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The best view of a mesocyclone is normally from a location east of the updraft, looking west. |
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Various different temperatures and wind interactions at different altitudes can cause a rotating updraft called a mesocyclone. |
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When I related to them how, on one jump, I was caught in a thermal updraft and was actually going up instead of down, they laughed in disbelief. |
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Normally, the air that's moving down, called a downdraft, shares the thunderstorm with the updraft. |
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Within this area, a particularly strong updraft can produce a small vortex that appears as a funnel. |
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The structuring of older roofs was designed to take into account that the heat updraft would melt the snow, thereby reducing excess accumulation. |
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The updraft keeps millions of water droplets in suspension until they become so heavy that they fall as rain. |
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The cloud reaches the tropopause which blocks the updraft, forcing the stream of air to spread out horizontally. |
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The power of the rising air, or updraft, keeps millions of water droplets in suspension until they become so heavy they fall as rain. |
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Upon reaching the bottom of the cloud, some of the ice pellets are carried by an updraft back up to the top of the storm. |
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Why it continued to rotate cyclonically after it shifted to the center of the updraft troika is a matter of conjecture because of the paucity of data in the storm inflow. |
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When splitting occurs, a cyclonically rotating updraft propagates to the right of the mean wind, while an anticyclonically rotating one moves to the left. |
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When environmental winds are favourable, the updraft and downdraft of a storm become organized and twist around and reinforce each other. |
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Ferguson, reappointed in his place at Peterborough on Tuesday, has managed to catch hold of a career-reviving updraft. |
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And what could be simpler than the idea of generating electricity from the updraft of a chimney by putting turbines inside that chimney? |
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The downward motion is enhanced when the cloud particles evaporate and cool the air almost the reverse of the processes in an updraft. |
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At about 50 to 100 feet above the mountainside landing site, an updraft and then a downdraft were encountered. |
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Typically the stronger the updraft, the more times a hail stone repeats this cycle and consequently, the larger it grows. |
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The rain stifles the updraft, reverses it into a downdraft and kills it. |
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This causes the descending precipitation to fall through only a portion of the cell, allowing the updraft to persist. |
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Once the hail stone becomes too heavy to be supported by the updraft, it falls out of the cloud toward the surface. |
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Once the updraft movement is initiated, you are ready to ignite the stove by lighting the paper and kindling wood inside the combustion chamber. |
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Her short, layered ash-blonde hair was caught by a tiny updraft and the effect reminded Brooks and Howard of just how pure and innocent she could appear. |
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The storm surge within a hurricane is typically caused by strong winds pushing the ocean surface ahead of the storm, and not by the massive updraft from within a hurricane. |
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In such a case, the precipitation falls through only a portion of the cell, allowing the updraft to persist and reach values of 10,000 feet per minute. |
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Several search pilots reported smooth flight conditions in the mountain valleys and cirques, although one stated that he encountered a smooth updraft of approximately 1,000 feet per minute. |
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He reasoned that a lamp in a chimney could create a sufficient updraft that firedamp would not penetrate down the chimney. |
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The updraft dissipates and the hailstones fall down, back into the updraft, and are lifted up again. |
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Section 8 extends approaches to three dimensions and considers a so-called survival problem in systems of updraft and downdraft areas. |
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A further refinement of the scove kiln, round or rectangular in form, is designated as updraft or downdraft, indicating the direction of heat flow. |
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Roofs were torn off and one window was completely sucked out of a pub by the updraft. |
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Changes in that type of lightning can also give us a better understanding of the updraft strength in thunderstorms. |
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Once a hailstone becomes too heavy to be supported by the storm's updraft, it falls from the cloud. |
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A rotating updraft within this 20-kilometer-high thunderstorm sired a violent tornado. |
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The fan will produce an updraft and push down heated air into the room from the ceiling. |
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An updraft will increase the wing's attack angle and consequently increase the lift, however, there is a risk that it could be increased beyond the stall angle. |
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The same applies to another technology of the future: solar updraft. |
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The storm's updraft blows the hailstones to the upper part of the cloud. |
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In principle, wind turbines may also be used in conjunction with a large vertical solar updraft tower to extract the energy due to air heated by the sun. |
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As the aircraft plummeted to the ground, the updraft restarted the engine. |
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Large-scale downdrafts, like those over Earth's deserts, are dry because the moisture falls out in the neighboring updraft regions, Ingersoll explains. |
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