34 



observed when the center was about 420 miles from our position. 

 It was then travehng at the approximate rate of 20 miles per hour. 

 Soon after it had passed we got a rapid shift in the winds to a north- 

 westerly direction, which increased three hours later to force 10 of 

 the Beaufort scale. 



A second large anticyclone spread across the country and out to 

 ■sea from the 27th to the close of the month, thus furnishing the 



N 



Fig. 1. — March weather diagram. The inner circle gives the day of the month; the next band out contains 

 the record of atmospheric pressm'e; the next outer one indicates the degree of visibility (crosshatched 

 areas represent low visibility and black areas duration of fog); the outer margin shows the average 

 direction and force of the wind, per 12-hour periods, noon and midnight 



Grand Banks with prevailing northeasterly winds and generally fair 

 weather for the end of the month. 



Another disturbance from March 29 to April 3, took a path shown as 

 track B on Figure 2. It followed a course farther north than most 

 storms, due to an interposing anticyclone that was lying over the 

 Atlantic States at the time. This situation tended to keep it at a 

 distance from our vicinity, yet on reaching a point near St. Johns, 

 Newfoundland, the depression deepened and thus intensifying, for 



