Nation Bomb cyclone or ‘explosive cyclogenesis’ knocks out power to 600,000 during a ‘wild night’ October 17, 2019October 17, 2019 John Bacon, USA TODAY Comments Off on Bomb cyclone or ‘explosive cyclogenesis’ knocks out power to 600,000 during a ‘wild night’ An 'explosive cyclogenesis' or bomb cyclone hit the Northeast, causing widespread power outages in Massachusetts, Maine, Connecticut, New Hampshire.