1884.] 



of the Bay of Bengal in 1883. 



135 



in November, when the south-west monsoon is recurving over the centre 

 of the Bay, and giving north-easterly monsoon winds and rain to the 

 Coromandel coast. The amount of wind registered at Nancowry on each 

 day of the first week of the month, is given in the following table : — 





Total wind 



Rainfall at 







amount of the 



6 p. M. of the 



Wind direction 





24 hours previ- 



preceding 24 



10 A. M. 





ous to 4 P. M. 



hours. 





1st 



467 



0-47 



S. E. 



2nd 



38-2 



0-21 



S. E. 



3rd 



44-0 



2-86 



E.S. E. 



4th 



19-5 



0-41 



s. w. 



6th 



18-8 



0-96 



s. w. 



6th 



171 



0-62 



s. w. 



7th 



125-4 



114 



s. s. w. 



Average October 



149-7 



... 



S. 50° W. 



„ November ... 



117-2 



... 



S. 29° E. 



This shows that, in consequences of atmospheric actions, the nature 

 of which can only be conjectured, the air motion over the south of the 

 Bay was unusually and remarkably feeble during the first week of the 

 month. The moist current advancing northward, instead of curvino* 

 through south-east and east and arriving as north-east winds charged 

 with vapour on the Coromandel coast, was exceedingly weak for some 

 days in the neighbourhood of the Nicobars. It had also shifted in direc- 

 tion on the 4th, and was proceeding from the south-west directly into the 

 Martaban Gulf. Rain also began to fall in increasing amounts over 

 this and the adjacent parts of the Bay. 



The ship Mount Stuart was advancing northwards, a little distance 

 to the west of the Andamans. She was in Lat. 11° 50' N". and Long. 91° 50' 

 at noon, and during the day had very variable winds commencing 

 from N. E. by N". and ending at S. The weather was fine, but the 

 air was charged with moisture. This is shown by the fact, noted by the 

 Captain, that, during the hotter part of the day, when there is undoubted- 

 ly much upward movement of the air, heavy i-ain clouds formed all 

 around, but cleared away again towards sunset. 



The Kwang Tung, on the other hand, was to the east of the Andamans 

 in Lat. 12° 33' N. and Long. 93° 6' E. She had fine weather throughout, 

 with light and variable winds during the day of force 2. Tlic wind 

 shifted from S. E. to N. E. and thence to S. W. during tl»e day. 



