Slow moving storms have soaked parts of Texas and Louisiana this week and millions of people in the region are under flash flood watches into Thursday.
But of course, Bay of Bengal, very vulnerable region, 260 kilometer per hour winds gusting to 315 kilometers per hour and certainly a very slow moving system.
Rising flood waters are causing alarm in the northern Philippines where a slow moving typhoon is cutting through the island of Luzon dumping heavy rains as it goes.
Slow moving and calm, easy to recognize by the pattern of white spots on its body and its wide, flat head, the whale shark is a secretive ocean wanderer.