1884.] 



of the Bay of Bengal in 1883. 





Barometer at 

 10 A. M. reduced 

 to sea level. 



1 

 If 



Wind. 



Average Avind 

 velocity of previ- 

 ous 24 hours. 



o 



1 



■^3 







5 

 a 



Rainfall 



of 

 previous 

 24 hours. 



Stations. 



10 h. 



16 h. 



Nancowry 



Port Blair 



Diamond Island 

 Akyab 



29-914 

 29-875 

 29-835 

 29-695 

 29-608 

 29-530 

 29-445 



29-322 

 29-173 

 29-355 

 29-463 

 29-440 

 29-613 



•t -001 

 + -019 

 + -028 

 + -056 

 + -037 

 + -004 

 



— -070 

 — -201 

 — -068 



— •044 



— •012 



— •001 



S.W. 

 S.W. 



s.s.w. 



S. S. E. 



S. E. 



E. 



E. 



E. 

 E. 



N. N. W. 

 N.W. 



w. s. w. 

 s.w. 



S.W. 

 S.W. 



s. s. w. 



S. S. E. 

 E. 

 E. 

 E. 



E. 



S.W. 



? 

 W. N. W. 

 W. S. W. 

 W. by N. 



8 

 13 

 13 

 11 

 11 

 13 

 18 



19 



26 



8 



6 



23 



6 



73 



118 

 163 



275 

 157 

 163 

 360 



317 



186 



? 



150 

 230 

 150 



7 



5 



8 



7 



10 



10 



10 



10 

 10 

 10 

 10 

 10 

 10 



2-21 



0-20 

 0-40 

 1-43 



Cliittagong ... 



Dacca 



Jessore 



Calcutta (Ali- 

 pore) 



Saugor Island 



Balasore 



Cuttack 



False Point ... 



Vizagapatam... 



2-31 



0-26 

 0-78 



0-64 



1-22 

 3-83 

 8-22 



The meteorological returns of the Bengal stations show that a large 

 fall of the barometer had occurred in South- West Bengal and Orissa,whilst, 

 over the remainder of the province, a considerable recovery of pressure 

 was taking place. The depression off Saugor Island was now unusually- 

 large in amount, and such as is rarely observed in the rainy season. 

 Pressure was below the normal of the day at all stations, by amounts 

 varying })etween '01" at Durbhunga and -45" at Saugor Island. The 

 atmosplieiic circulation in Bengal was now directly dependent on the 

 cyclonic vovtox off the coast of the Suuderbands, and winds were very 

 strong ill the iieigh])ourhood of the vortex in South-West Bengal, 

 Oiissa, and Clmtia Nagpore. The winds in Chutia Nagporc and South 

 Behar at 10 a. m. were from directions between E. N. E. and N. N. E. In 

 North BcMigal and Behar the winds were from the east, the normal direc- 

 tion during the south-west monsoon. 



The air was now almost saturated in East and South- West Bcnaal 

 aiid Orissa. Humidity had albo increaacd very conaidciabiy over Uic 



