美国有线新闻 CNN 炸弹气旋袭击美国东海岸 致航班取消比赛推迟（在线收听）

Our first topic today is a weather event. It's not a classic Nor'easter. It could be a "bomb cyclone". Whatever its formal designation will be, it's a system so powerful that it's causing problems all over the U.S. northeast and it came up quickly. "Bomb cyclones" start as low pressure weather systems. The lower the pressure, the more powerful the storm. When a system's pressure changes quickly, dropping 24 millibars in 24 hours, the rapidly intensifying storm has undergone a process called bombogenesis. It has become a bomb cyclone and that's what the system along the U.S. eastern seaboard was expected to do.

A CNN meteorologist said it would have the same low pressure as a Category 1 hurricane. What could that mean for the region? Powerful winds blowing faster than 39 miles per hour and possibly up to 60 or a potential threat from New York City to Portland, Maine. Heavy rain anywhere from two to six inches were forecast for the northeast and all of this could last through Thursday. Flight delays and cancellations were expected. Game 4 of the American League Championship Series was postponed. It's in New York between the Yankees and the Houston Astros and they had to wait until at least Thursday for their fourth match up.

This storm is the second big one to hit this area in a week. The last one brought heavy waves, beach erosion and flooding to the east coast. And while this week's storm isn't expected to bring as much snow as a classic nor'easter typically does, except maybe for a small part of upstate New York, many of its other characteristics are the same.