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What is a 'roll cloud'? The weather phenomenon behind tsunami-like wall of cloud off Portugal

Images shared across social media showed a huge horizontal wall stretching from the horizon towards the shore, accompanied by a violent gust of wind when it reached land. 'Felt like a tsunami out of a ...
WLWT

Thursday weather planner: Morning clouds roll out, near 60 degrees for Thursday night kickoff

The clouds roll out later Thursday. We'll get a few more decent fall days before a major cold front hits us on Sunday.LIVE RADAR // LATEST WEATHER ALERTS // TRAFFIC MAP These morning clouds will keep ...