heavy swell

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Noun1.heavy swell - a broad and deep undulation of the ocean
crestless wave, swell - the undulating movement of the surface of the open sea
References in classic literature ?
Thereon he floated about for two nights and two days in the water, with a heavy swell on the sea and death staring him in the face; but when the third day broke, the wind fell and there was a dead calm without so much as a breath of air stirring.
As when there is a heavy swell upon the sea, but the waves are dumb--they keep their eyes on the watch for the quarter whence the fierce winds may spring upon them, but they stay where they are and set neither this way nor that, till some particular wind sweeps down from heaven to determine them--even so did the old man ponder whether to make for the crowd of Danaans, or go in search of Agamemnon.
The floe's lip was split and cracked in every direction for three or four miles inland, and great pans of ten-foot-thick ice, from a few yards to twenty acres square, were jolting and ducking and surging into one another, and into the yet unbroken floe, as the heavy swell took and shook and spouted between them.
The sound of the surf was loud, hollow, and menacing, and a heavy swell was setting in.
In statement on Friday, BNC said its chartered landing craft transport, Marc Jason, was repositioning when it was hit by an unexpected heavy swell at 4 a.
CalMac were also forced to cancel sailings on west coast routes due to strong winds and heavy swell conditions.
A prolonged and heavy swell had swept away microscopic plankton known as dinoflagellates that are found in heavy concentrations in the lagoon and emit light through a chemical reaction when disturbed, said Carmen Guerrero, secretary of the Natural Resources Department.
Speaking about the Portush incident, Lifeboat boss Robert Cardwell said: "There was a big, heavy swell and he's probably got washed off by a wave.
Paul Thomasson, from Neston, Wirral, told how a heavy swell flipped over his open-topped 12ft-long boat and he became tangled in his own fishing line.
His voice breaking with emotion, Paul Thomasson told how a heavy swell flipped over his open-topped, 12 feet, camouflage-green craft and he got tangled in his own fishing line.
Still heavy swell but they carried out manoeuvre perfectly," Guillemot said on Saturday.