tlae latest observed distribution and size of icebergs to Hudson Straits 

 had to be made. It was estimated that not one iceberg would drift soutli 

 of latitude 40° N. Continued cyclonic activity passing over and south 

 of Newfoundland in February and March materially assisted in sup- 

 porting this conclusion. 



By late February, a tongue of field ice had penetrated south to 

 47°50' N. along the Avalon Peninsula. The maximum southern exten- 

 sion of field ice was 47°30' N. on 17 March 1966. However, this was a 

 narrow tongue of open pack. The close pack was mainly north of 49° 

 N. By 24 March, only a narrow strip of open pack along the Newfound- 

 land coast was to be found south of 50° N"., and by 8 April, only occas- 

 sional open pack was located along the Newfoundland coast. A narrow 

 band of close pack extended north of 51° N. By 20 April, only occas- 

 sional narrow bands were observed along the Labrador coast up to 

 Hamilton Inlet. 



Throughout the ice season, the predominant winds were onshore, 

 tending to drift, the few bergs distributed along the Labrador coast 

 into the heavily indented shoreline. The southernmost berg was located 

 on the 28tli of FebruaiT at 49°05' N., just off the Newfomidland coast.. 



Table 1. Estimated number of icebergs south of 48° N, 1900-66 



1 . The totals for 1946-«6 are based mainly upon aircraft reconnaissance and are more accurate than prior 



2. The totals for 1900-45 are based mainly on ship reports of other than Ice Patrol vessels. 



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