The system was first noted Know on December 3 , 1991 as a shallow tropical depression that was embedded Connect within the monsoon trough , to the north of the Cook Island : Rarotonga .

Hunley '' approached Arriving just under the surface , avoiding Preventing_or_letting detection until the last moments , then embedded Placing and remotely detonated Attack a spar torpedo that rapidly sank Motion_directional the sloop-of-war with the loss Death of five Union sailors .

Hudah first developed Coming_to_be as a disturbance embedded Connect within the monsoon trough on March 22 , within the Australian region cyclone basin .