Consider a line of thunderstorms 40 miles wide and suppose (for simplicity) that the rainfall rate everywhere within this band of thunderstorms is 2 inches per hour. assume that the line of thunderstorms is oriented in a north-south direction and that it moves due east. how much rain will fall at a location over which the storms pass if the storms move at 40 mph ?
by what factor would the total rainfall at a location increase if the storms only moved eastward at 10 mph?
what conclusion can you draw between the speed of thunderstorms and the risk of flooding?