140 



J. Eliot — The South-West Monsoon Storms 



[No. 2, 



cyclonic circulation in the Martaban Gulf. South-westerly winds were 

 increasing in force over the south-east of the Bay, and were being con- 

 tinued much further north than is usual in the month of November. To 

 the west of the Andamans, winds were exceedingly light and variable, 

 and such as to show that the south-west winds advancing north- 

 wards were not being continued in that direction near the earth's surface. 

 The clouding over of the sky, the commencement of showers increasing 

 in intensity and accompanied with slight squalls, indicate clearly that 

 ascensional movement on a large scale was commencing over that area, 

 and giving rise to its usual result when it is partly fed and maintained 

 by a moist current, namely, rainfall increasing in intensity, which, by a 

 known law of rainfall, tends to become concentrated over a limited area. 



9th November. — There are no new features of interest in the mete- 

 orology of the Indian land area. Pressure continued to give way in all 

 parts of India. The decrease was greatest in Sind, Rajputana, and the 

 Punjab. The area of barometric depression over the Indus valley was 

 now very distinctly marked. It had as yet exercised no marked 

 influence in the weather of Upper India. The winds were, however, 

 drawing round in the Punjab and neighbouring districts, and indicated 

 a feeble cyclonic air circulation over Upper India. The ascensional 

 movement which necessarily accompanied it, had not given rise to the 

 formation of cloud, except over the North- Western Himalayas. 



Over the whole of Bengal and the North-Western and Central Pro- 

 vinces, the air motion was very slight, averaging only 1 to 2 miles per hour. 



In Southern India the weather conditions were unchanged. Cloudy 

 skies continued in the Madras Presidency, and a few occasional showers 

 of no importance were received. 



The observations at the coast stations of the Bay of Bengal present 

 the same features as hitherto. The baric gradients were apparently 

 normal in direction, but somewhat smaller than usual, and the differences 

 of pressure comparatively small. The most important feature was the 

 weakness of the north-easterly winds on the Coromandel coast. This is 

 shown by the following statement : — 



Stations. 



Amount of wind Average daily 

 in miles per hour amount of wind 



smce 10 A. M. 

 previous day. 



(miles per hour) 

 in November. 



Vizagapatam 

 Masulipatam 



Madras , 



Negapatam 

 Trichinopoly , 

 Madura 



2-5 



6-0 

 6-8 

 5-6 

 4-6 

 41 



