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Posted at 04:17 PM ET, 08/03/2012

The week in clouds: atmospheric instability produces dramatic skies

A thunderhead bubbles up near Broad Run, Va. on August 2. (Jennifer Reed)
Cold air high in the sky combined with toasty air near the ground gave rise to atmospheric volatility all week long. The violent mixing of the air helped build towering thunderheads which glistened and glowed in different shades against the sun’s long, setting beams of light. Sometimes downpours intervened, producing vibrant rainbows.

Related: Rainbow and lightning near Washington Dulles airport & Clear views of thunderstorm clouds and rainbows

Throughout the region, readers captured eye-popping photographs of these sky scenes.

View the must-see gallery below.

By  |  04:17 PM ET, 08/03/2012

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