1. The sea can be flat calm and then turn into total chaos. 2. This year, conditions early on ranged from ideal to flat calm . 3. The eastern part is characterized by flat calm , well-wavy terrain with a distinct plateau. 4. She was wrecked in a flat calm and clear weather. 5. You understand, it was a flat calm . 6. Moitessier, meanwhile, was sunbathing in a flat calm , deep in the roaring forties south-west of New Zealand. 7. The seas were nearly flat calm . 8. By 4 o clock the wind had died, the sea becoming flat calm , and visibility dropping due to battle smoke. 9. It was simple and worked quite well, but could not steer the boat in very light breezes or flat calm . 10. The river tonight is flat calm _ then turns choppy briefly in puffs of wind from the clouds _ then calm once more.