Monday 15 September 2014

Update September 15, 2014 - Monsoon Withdrawal Symptoms?

Update September 18,2014, 1800 hrs:

Break Monsoon like conditions returned on September 17 and Vagaries Goa recorded zero mm in 24 hrs ending 0830 September 18. Check here. September 19 saw heavy downpours in some parts mostly towards the interior, but largely the coastal belt remained dry. Vagaries Goa recorded zero mm during 0830 - 1800 on September 19.


Update September 16, 2014, 1800 hrs
 
As if to prove wrong the GFS forecast mentioned in the post below, most parts of Goa remained heavily overcast from September 16th morning and experienced scattered heavy downpours throughout the day. Vagaries Goa recorded 20 mm from 0830 to 1800 hrs on September 16th, and the rains continued at the time of this update. This development tied up with formation of low pressure area in westcentral Bay of Bengal and adjoining Coastal Andhra Pradesh and Associated upper air cyclonic circulation.

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Last year in 2013, September saw an almost dry period in Goa for the first 15 days, followed by one of the wettest 15 days period in September in recent years. Checkout this post on September 2013 Monsoon Revival

However this year in 2014, the last fortnight may well signal that the Monsoons are finally withdrawing.

GFS forecasts for Goa are all pointing to atleast a dry week ahead till September 21/22. The SW Arabian Sea winds are also weak with low moisture.



These Rains in First half of September have helped Valpoi cross the 150 inches mark and retain its role as the wettest place in Goa. Sanguem is however, not very far behind:


Mapusa, Mormugao and Dabolim are the only rain stations in Goa which have not crossed the Century rainfall mark in inches as of 15th September.

As of September 15, 2014 the Area Weighted Average rainfall for Goa has reached 2961.9 mm (116.6 inches) against normal of 2845 mm (112 inches), which is a surplus of +4% as on September 15!

You can check out the pattern of Rainfall in Goa from June 1 to September 15, 2014 in Google Earth and also monthwise graphically HERE

And you can check the daily rainfall pattern for my hometown Margao HERE

Are we going to end Monsoon 2014 in surplus after all? Watch this space!!