11.   Five schoolchildren wandered away from their class picnic on a public beach, and were dragged by strong tides into the Oeresund strait off southern Sweden on Thursday.

12.   Light winds and strong tides in the English Channel forced some boats to drop anchor Sunday night to prevent them from drifting backwards.

13.   Maldonado said Pitruzzella was dragged away by strong tides, which prevented his companions at Zipolite beach from attempting to rescue him.

14.   Strong tides and low visibility have hindered the search.

15.   However, the strong tide had pushed tired Moby back towards land.

16.   Last month, Chinese flood prevention experts warned that the El Nino weather phenomenon was likely to cause abnormal weather, including high rainfall, cyclones and strong tides.