bay system essentially as do the normal astronomical tides; and (b) the 

 local setup caused by hurricane winds blowing over the bay proper. The 

 first of these factors is usually the more significant, since few if any 

 interior bay systems provide a sufficient fetch to permit generation of 

 a large wind setup within the bay. Hurricane winds blowing along the 

 axis of the bay depress the water-surface elevation near the bay entrance 

 below that which would have been produced by the gravitational component 

 alone, and raise the water- surface elevation at the head of the bay above 

 that which would have been produced by the gravitational component alone. 

 It may be stated, therefore, that local wind setup over the Narragansett 

 Bay system could not increase flooding at localities near the bay en- 

 trance but could appreciably increase flooding at Providence and other 

 localities near the head of the bay system. 



