53° 52° 51° 50° 49° 48° 47° 46° 45° 44° 43° 42° 41° 



54° 53° 52° 51° 50° 49° 48° 47° 46° 45° 44° 43° 42° 41° 40° 



ICE CONDITIONS A BERG SEA ICE CONCENTRATION 



FOR 1200 r,MT 28 APRIL 197 5 | GROWLER HE) LESS THAN 6 OKTAS 



BASED ON OBSERVED AND X RADAR TARGET ^ 6 OKTAS OR MORE 

 FORECAST CONDITIONS. 



Figure 12.— Ice Conditions, 1200 GMT 28 April 1975 

 20 



