39 



While the foregoing storm was raging over Newfoundland another 

 cyclone was growing down in Oklahoma. Its path from April 6 to 12 

 is lettered E on Figure 5. It followed the mean northeasterly- 

 track, as can be seen on the figure, and on the evening of the 11th 

 when 300 miles from the position of the patrol ship it made its first 

 effects felt by the wind increasing to nearly gale force from the south. 

 As the storm moved away out into the North Atlantic we were com- 

 pletely enveloped in an anticyclone which was following on the rear 

 of the "low," and for the next two days we experienced stiff north- 

 westerly gales. 



A moderate depression was observed on the meteorological map 

 for 8 a. m., April 10 as centered in eastern Texas. It traveled very 

 slowly in an easterly direction until the 12th when near Atlanta, 

 Ga., it abruptly turned and followed a track almost due south for 

 about 300 miles then reversed itself and moved northeastward. 

 This peculiar behavior was believed due to the presence of an anti- 

 cyclone of considerable size and intensity to the northward. The 

 distm'bance later spread southeastward over the Middle Atlantic 

 States effectually blocking the normal cyclone path. 



Track H of a cyclone, April 24 to 27, lay farther north than the 

 other tracks for the month and being so far removed from the Grand 

 Banks region its passing influence could not be detected on the baro- 

 graph record. Track I, however, the last one for the month, lay 

 up the St. Lawrence Valley so that the center, when it crossed the 

 gulf the night of the 29th, was about 540 miles from the patrol. 

 At this distance it caused our pressure to fall slowly and the winds to 

 shift temporarily from west to east. The rate of travel of this 

 cyclone was about 25 to 30 miles per hour. The month closed with 

 this disturbance central over Newfoundland. 



MAY 



On May 1 the cyclone that had moved along track I began to 

 drift southeasterly toward the patrol ship and consequently left a 

 graphic record of a sharp bend in our barograph curve for the 2d 

 instant. (See weather diagram for May, fig. 3, p. 35.) 



The weather map which we compiled on board the morning of 

 May 2 indicated another depression (29.70) forming to the westward 

 over the Great Lakes region. First it followed an easterly path to the 

 vicinity of Quebec where it hovered until May 3, then curved into 

 northern Vermont and deepened to 29.30. April 4 it passed over the 

 Gulf of St. Lawrence still intense (29.22), j^et that evening it suddenly 

 and surprisingly began to fiU and by the following day it was very 

 shallow and trough-like. May 6 it was almost squeezed out between 

 two prominent areas of high pressure which merged and for several 

 days prevented the regular procession of depressions which had been 

 in effect prior to this. 



