ZZ^^e-"/^ 



1,2 



'0 



10 20 30 40 50 60 70 10 20 30 40 SO (O 



Distance From Pressure Center (Statute Miles) DIatonce From Wind Center (Statute Miles) 



Hurricone August 26-27,1949 ^ ( from Horri,, 1958) 



Figure 3-33. Pressure and Wind Distribution in Model Hurricane. Plotted 

 dots represents observations 



where V„ is the velocity of the storm center, and Ugw(r) is the 

 convective term which is to be added vectorially to the wind velocity at 

 each value of r. Wilson (1955, 1961) and Bretschneider (1959, 1972) have 

 suggested other correction terms. 



3.73 PREDICTION TECHNIQUE 



For a slowly moving hurricane, the following formulas can be used to 

 obtain an estimate of the deepwater significant wave height and period at 

 the point of maximum wind: 



RAp 



H = 16.5 e 

 o 



100 



0.208 a Vc 



1 + 



Vu, 



(3-31) 



and 



T, = 8.6 e 

 s 



RAp 

 200 



1 + 



0.104 a Vp 



vuT 



(3-32) 



3-57 



