India Meteorological Department: Long Range Forecast Update for 2011 Southwest Monsoon Rainfall

India Meteorological Department: Long Range Forecast Update for 2011 Southwest Monsoon Rainfall

21

Published

21 June 2011
Press Release Number:
N/A

Summary of the Update Forecasts for 2011 Southwest Monsoon Rainfall

i)  Southwest Monsoon Season Rainfall
Rainfall over the country as a whole for the 2011 southwest monsoon season (June to September) is most likely to be below normal (90-96% of Long Period Average, LPA).
Quantitatively, monsoon season rainfall for the country as a whole is likely to be 95% of the long period average with a model error of ±4%. The Long period average rainfall over the country as a whole for the period 1951-2000 is 89 cm.

ii)  Monthly (July & August) Rainfall
Rainfall over the country as a whole in the month of July 2011 is likely to be 93% of its LPA and that in the month of August is likely to be 94% of LPA both with a model error of ± 9 %.

iii)  Rainfall over Broad Geographical Regions
Over the four broad geographical regions of the country, rainfall for the 2011 Southwest Monsoon Season is likely to be 97% of its LPA over North-West India, 95% of its LPA over North-East India, 95% of its LPA over Central India and 94% of its LPA over South Peninsula, all with a model error of ± 8 %.>> More

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