Capt. Neal tells us that it is the addition of wind velocity to storm
progress to create higher winds that give a tropical revolving storms a
dangerous quadrant. I suggest the term 'dangerous' arises from
consideration of additional risks of being at _sea_ in that quadrant
-hence there is also the area called the 'navigable semicircle'.

The question is, is there anything execept wind velocity that poses a
special risk for vessels at sea that make it so dangerous (beyond some
moderate increase in wind velocity)? How about some things that are
irrelevant for people on land? Why is one semicircle called 'navigable'
anyway? Surely not to reflect the seafaring knowlege of yours truly?

Cheers MC (the only true putz of 2003!?)