6000 



E 

 ,§ 4000 



LU 



o 



< 



g 2000 



_i 



LU 

 > 

 HI 



-J n 



tr 



LU 



i- 

 < 



< 



Q 



Q 

 LU 



-2000 



-4000 



g -6000 



O 



< 



-8000 



WARM FRONT 

 44:1 



COLD 

 FRONT 



4:1 



1:0 





,0 1:0 



CONTINENTAL 



HIGH, 



FRONTAL 



3:1 



5:1 



m 



1:0 



18:1 



¥ 



¥4 



'/ GULF HIGH. 



ooSmnSl ^ °™™g™L 



HIGH O HIGH 



COASTAL 

 RETURN 



5:1 



14:1 



1:1 



& 



4:1 



ZA 







GULF HIGH, 



FRONTAL, 



GULF RETURN 



3:1 



5:1 



GULF 

 TROPICAL 

 DISTURBANCE 



V7A NO SURPLUS 



Wm\ surplus 



SYNOPTIC WEATHER TYPE COMBINATIONS 



Figure 60. Effect of various weather patterns on water levels at Eugene 

 Island, Louisiana (from Wax 1977). 



143 



