Sunday, August 21, 2011

Wettest month of South Interior Karnataka- The October surprise?


South interior Karnataka is one of the top ranking meteorological sub divisions in the country in terms of average altitude. It is also known to have a fairly beautiful weather all through the year. It is particularly good in the month of May when other parts of the country reel under intense heat wave.

It is also known that the early South West Monsoon months provide little precipitation to this region. However, the weather is overcast and cool. I took the following picture at Mysore Chamundi temple during June 2009.


Also, it is widely believed that September and October are the wettest months of this region due to the convective currents formed by warming up of lower atmosphere. Let us survey some important cities all across South Interior Karnataka and  understand the wettest months of this region. For convenience, Let us ignore the ghat areas of the region where SWM is dominant in July and August.




We see that with the exception of Bangalore, all the other South Interior Karnataka's stations point out that October is the wettest month of the region with the second position going to September and May is just marginally trailing behind. This may be attributed to the combined effects of the SWM and the NEM.


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