34 



ELEVENTH CRUISE, "CHELAN," AUGUST 10-23, 1939 



The Chelan sailed from Boston, Mass., at 1204, on August 7, 1939, 

 to relieve the Champlain on Ice Patrol. Light southerly winds with 

 fog prevailed on the run to the relieving point and the Champlain 

 was met in latitude 4 1°57' N., longitude 54°00' W. The Ice Observa- 

 tion Officer reported on board and at 0852 on August 10, 1939, the 

 Chelan relieved the Champlain as Ice Patrol vessel. 



Course was set eastward to relocate berg sighted by the Champlain 

 on August 9, 1939, in latitude 43°33' N., longitude 49°20' W. On 

 the afternoon of August 11, with moderate visibility, the east edge 

 of the Grand Banks was searched between latitudes 43°00' N. and 

 43°42' N., no ice being sighted. The next morning a berg was 

 reported in latitude 42°31' N., longitude 50°17' W., and with excehent 

 visibility the Chelan searched the cold current from latitude 43°52' 

 N. to the berg. No other ice was sighted. The Chelan remained 

 with this berg until August 22 by which date it had disintegrated to 

 such an extent that it was no longer considered a menace to navigation. 



On August 22 course was set to intercept the Campbell, as that 

 vessel desired to transfer a man for transportation to Boston for 

 hospitalization. The Campbell, enroute to the contact point, searched 

 the Labrador Current from latitude 42°00' N. to latitude 43°35' N. 

 No ice was found. The next day the Chelan searched along the 

 eastern edge of the Grand Banks from latitude 43°09' N. to 45°50' 

 N. No ice was found and recommendation was made to Coast 

 Guard Headquarters to discontinue Ice Patrol for the season. Permis- 

 sion was granted and Ice Patrol was discontinued at 2051 on August 

 23, 1939. The patrol vessel then proceeded to Boston, Mass. 



Upon receipt of authority from Coast Guard Headquarters to 

 discontinue the patrol, all vessels, Cape Race radio, and district radio 

 commissioner, Halifax, Nova Scotia, were advised of the fact and 

 gratitude expressed for their cooperation throughout the season. 



By August 16 the onlyknownbergin the Ice Patrol area had drifted 

 to latitude 41°50' N., longitude 49°38' W. and recommendation was 

 made by dispatch to Coast Guard Headquarters that United States- 

 European traffic be shifted to the normal turning points tracks C im- 

 mediately. Coast Guard Headquarters approved the recommendation 

 by dispatch and shipping was so advised in the regular broadcasts. 



The following is a summary of the ice and water temperature reports 

 received during this cruise: 



Number of bergs reported south of latitude 48° N 1 



Number of bergs reported south of latitude 45° N 1 



Number of bergs reported south of latitude 43° N 1 



Number of ice reports received 5 



Number of vessels furnishing ice reports 5 



Number of water temperature reports received 590 



Number of vessels furnished special information i 29 



