For several hours in the early part of the day, New Orleans was battered by powerful squalls that threatened to dump four-month worth of normal rainfall in a single morning.

• 整个早上几小时，雨声震耳欲聋，看样子要在一个早上要倾出相当于正常降雨四个月的量，新奥尔良市顷刻遍体鳞伤。