1884.] 



of the Bay of Bengal in 1883. 



59 



Talle of Daily Amount of Wind at eight Stations in Bengal. 

 June ISth to 26th, 1883. 





i 



1-1 



1 



iH 



I-l 





I-l 



00 



t— 1 



^ 

 a 



+3 

 CO 



?— 1 



t 



1 







^6 

 ■a g 



False Point ... 



Calcutta 



Dacca 



261 



127 

 102 

 144 



76 

 137 

 117 



99 



207 

 141 

 174 

 168 

 100 

 185 

 148 

 134 



326 



166 

 164 

 312 

 170 

 279 

 206 

 191 



258 

 215 

 174 

 264 

 111 

 148 

 251 

 286 



265 

 177 

 177 

 216 

 126 

 278 

 114 

 329 



207 

 140 

 160 

 144 

 114 

 153 

 58 

 182 



270 

 167 

 193 

 192 

 255 

 58 

 60 

 206 



241 



178 

 229 

 216 

 158 

 74 

 121 

 153 



245 

 166 

 217 

 144 

 24 

 127 

 138 

 239 



244 



151 



211 



120 



26 



57 



55 



136 



? 



122 

 181 

 120 

 21 

 59 

 111 

 211 



285 



72 

 142 

 144 



47 

 116 

 107 

 182 



238 

 104 

 155 

 120 

 29 

 134 

 127 

 178 



249 



162 

 186 



Dinagepore ... 



Purneali 



Durbhunga . . . 



Patna 



Hazaribagb ... 



? 



98 

 137 



? 

 214 



Tlie rainfall table sliews a very marked diminution in tlie amount 

 of rain after the 20tli. An examination of tlie complete rainfall returns 

 of tlie Province of Bengal indicates that it occurred as isolated and local 

 showers, which were occasionally heavy and gave large amounts at single 

 stations. No general rain, however, fell over any considerable portion of 

 the Province between the 20th and 25th. Similarly, an examination of 

 the second table giving wind amounts indicates that, although strong 

 winds generally prevailed between the 13th and 20th, winds were 

 unusually light after the 20th and below their normal strength. This 

 feature of weakness of its air motion was most markedly shown by the 

 stations most distant from the sea, as, for example, Purneah. 



The meteorological observations taken in Bengal thus show that 

 what may be termed a strong monsoon prevailed at the Head of the Bay 

 and in Bengal from the 1st to the 20th of the month, and that for some 

 days afterwards, or between the 20th and the 25th, it was much feebler. 

 Also, as will be seen from the following observations and from the history 

 of the storm, the south-west monsoon winds increased in force to the west 

 of the Andamans on the 23rd, advanced northwards as a strong atmos- 

 pheric current along the coasts of Burmah and Arracan, and fed the 

 cyclonic vortex which formed on the 26th and 27th with large supplies 

 of aqueous vapour. 



