Frying Pan Shoals Lightship (fig. 18, table 

 18)--The cold surface water of late February 

 and March probably represents a flow of 

 coastal water southward past Cape Hatteras, 

 as occurred in 1958. Not until June did 



temperatures reach the mean again. The bot- 

 tom maximum in early September of 81.8 F. 

 equaled the 1958 high. The intrusion of colder 

 water near the bottom in summer is an annual 

 phenomenon. 



Ul 



<fc 



B 



1 



s 



90r 



80- 



70- 



60- 



SURFACE T. °F 



J I L 



£ 

 S 



°n 



it! 20 



40 H 



60-| 



65' 



! I 



mil 



ft? 

 in « 



I III 



!W i 



Ii 1 I 

 ii 

 ii 

 • "i 



ill 



1/ 



* 3ao 



BOTTOM S.%o 



-- — o 0-. 



JAN 



FEB 



MAR 



APR 



MAY 



JUN. JUL. 



AUG. 



SEP. OCT. NOV. DEC. 



Figure 18.— Frying Pan Shoals Lightship. (Dashed line in upper diagram mean for period 1950-59.) 



51 



