21. This is an unusual year in the Pacific waters off Northern California.
22. This part of the cycle, characterized by cooler than usual Pacific water, is typically associated with heavy hurricane years.
23. A Japanese antisubmarine helicopter crashed into Pacific waters off the northern island of Hokkaido during pre-dawn training Tuesday.
24. Authorities believe the men either drowned when their vessel sank in Pacific waters or were thrown overboard.
25. During El Nino years, when Pacific waters are warmer than usual, the odds of having hurricanes in the Atlantic drop.
26. Forecasters said El Nino, in which unusually warm Pacific waters disrupt weather patterns, could be to blame for the high number of powerful hurricanes.
27. Forecasters said the El Nino phenomenon, in which unusually warm Pacific waters disrupt weather patterns, could be to blame for the high number of powerful hurricanes.
28. It works in reverse of the more common and better-understood El Nino, which is a warming of Pacific waters.
29. Naval investigators suspect the men may have been traveling on a boat that sank in nearby Pacific waters although there was no sign of any wreckage debris.
30. Tens of thousands of sardines have mysteriously died in Pacific waters off southern Mexico, hurting the fishing industry and leaving wildlife officials scratching their heads.