Does the AMO influence the intensity or the frequency of hurricanes (which)?
The frequency of weak-category storms – tropical storms and weak hurricanes – is not much affected by the AMO. However, the number of weak storms that mature into major hurricanes is noticeably increased. Thus, the intensity is affected, but, clearly, the frequency of major hurricanes is also affected. In that sense, it is difficult to discriminate between frequency and intensity and the distinction becomes somewhat meaningless.
