perfect storm of conflicting scenarios

[diceman]

При кажущейся элементарности фразы я затрудняюсь перевести ее данном контексте. Помогите , пожаллуйста.

Back on the bridge, the officer of the deck receives a startling report – an enemy submarine is approaching off the starboard bow.
A helicopter races to counter attack – armed with its own torpedoes.
This is not the coordinated work of a foreign nation or a group of terrorists. Nor is it a perfect storm of conflicting scenarios. It’s just another day aboard the Sammy B, where drills are a way of life.

[sledopyt]

http://www.multitran.ru/c/m/l1=1&l2=2&HL=2&s=perfect+storm

[diceman]

Огромное спасибо.