In Reply to: Inverted thermoclines? posted by Frank O on January 27, 2009 at 15:49:36:

This would be possible after a heavy cold rain (rain temp or snow runoff colder than sea water) as the fresh water would float on top of the salt water. Expereinced it in the Carribean a few times and once off San Clemente (the halocline was only a few inches though). A few after heavy downpour rains and once near some freshwater springs in the Bahamas.

One site is White Point where technically the warm water vents at the bottom are warmer than the surrounding water, but not a true thermocline.

Good luck on the project!