perfect storm noun2 •(informal) A powerful hurricane or other major weather disturbance, especially as produced by a combination of meteorological conditions.But on the 24th of April, the wind again blew a perfect storm, and our other ships of the squadron separated, nor did any of them rejoin the commodore. — 1796 •(figurative) A convergence of multiple adverse factors that together create a critical, disastrous, or unusually severe situation.They sent a perfect storm of bullets, over, under, and into our men. — 1862 formsperfect storms