904.] 0. Little— T7ie Himalayan summer storm of Sept. 24th, 1903. J 61 



continued below, but as far as I could make out, the direction of move- 

 ment of the cirrus appeared to be from the north. In the afternoon T 

 watched, for an hour between 3 and 4 p.m., a dark cloud creeping up 

 from the north-west : it appeared to be at a great height, probably the 

 same as the cirrus. Below that cloud the air was evidently in commo- 

 tion, because there was at times a great deal of fracto-cumulus, and in 

 places high cumuli unbroken. About 6-30 low cloud covered the 

 sky and a thunderstorm broke over Calcutta from the north or north- 

 west. Very heavy rainfall for a short time. 



Saturday 2QtTi, 



Weather again fine during the day. 



In the evening two thunderstorms developed near Calcutta ; one 

 passed eastward with a slight southerly element in its movement. The 

 second was then visible in the west and moved slowly eastward, but by 

 the time it reached Calcutta, about 9 p.m., the cloud was much diffused 

 Ordinary rainfall began about 9 p.m., and continued for several hours. 



Sunday 210%. 



A depression has begun to form over Lower Bengal and the north 

 of the Bay, but it is diffused, and changes being of a local character, it 

 is difficult to account for what is going on. A thunderstorm was over 

 Calcutta about noon. 



Monday 2'^t'h. 



The depression is somewhat better defined and is moving slowly 

 westward. The most noticeable occurrences were as follows : In the 

 early morning between 7 and 8 a.m., thick stratus overhead and a 

 cumulus underneath towards the east. This cumulus moved slowly 

 westward and was over this place about 9 a.m., with moderately heavy 

 rainfall. In the forenoon a black cloud came up over Calcutta from 

 the South-west, and heavy rain fell all the afternoon. The cloud was 

 high when I noticed it and when the weather cleared up the clearing 

 began from the north-east. 



Tuesday 2^th. 



The depression was more to the west. Centre at 8 a.m., about 

 equally distant from Saugor Island, Balasore and Midnapore. 



Wednesday SOth. 



The westerly movement has continued. 



The above notes made at the time show what the main features of 

 the weather were in Bengal at the end of September. These may be 

 summarised as follows : — 



(1) While weather was still fine and almost cloudless in Lower 

 J II. 22 



