Statistics of wind over the Red Sea with application to the exodus question

On the basis of the Weibull distribution applied to winds in the part of the Indian Ocean adjacent to the Red Sea, it is argued that the likelihood of a storm sustaining winds of 20 m s^-1 and lasting, as required, for the entire night is roughly once every 2000 yr. Direct measurements along the Gulf of Suez suggest, on the other hand, a somewhat lower probability - once every 2400 yr or so. -from Authors