The position of every ship and its course, speed and weather conditions 

 are known and their safety is the chief concern of the Ice Patrol. Only 

 as radio communications improve can the Ice Patrol, itself, become 

 more efficient and more useful. 



The willing cooperation of the Canadian radio stations is gratefully 

 acknowledged. Their assistance in both gathering and disseminating 

 ice information w as indispensable. Two radio bearings were obtained 

 each day from Cape Kace radio which were valuable in checldng the 

 patrol vessels position during long periods of fog or overcast weather. 

 As last year, schedules w^ere maintained with the St. Lawrence Ice 

 Patrol in the Gulf of St. Lawrence, while they were on duty, and ice 

 information was exchanged and inbound and outbound traffic reported. 



The patrol vessels are equipped with the very latest types of radio 

 receivers and transmitters. This year automatic transmitting ma- 

 chines were used for the first time in sending the regular ice broadcasts. 

 It is hoped that the more regular keying and constant speed has made 

 the sometimes excessively long ice bulletins more accurate and more 

 easily read. 



The following daily schedules were maintained throughout the 

 period of the patrol. All times are Greenwich Civil Time. 



DAILY ICE BROADCASTS TO SHIPPING 



WEATHER 



Meteorological conditions over the Ice-Patrol area are important 

 to the patrol vessel. It is necessary to know the coming weather in 

 advance for several reasons: (1) in order to plan the scouting opera- 

 tions for the next day or two; (2) in predicting berg drifts and (3) in 

 answering requests for weather conditions and in advising vessels as 

 to safe courses to follow. To supply this information two weather 

 maps are constructed each day from data supplied by the major Ma- 

 rine bulletin broadcast from Arlington radio. In order to make the 

 synoptic situation as detailed as possible, within the Ice-Patrol area, 

 these data are supplemented by weather reports from vessels in the 

 vicinity, whenever available. In planning scouting it is important 

 to Imow the approximate time that fog, low visibility such as rain or 



