Posts Tagged ‘South-West Monsoon’

Indian Monsoon arrives – as forecast but 5 days later than average

June 6, 2014

The long range monsoon forecast predicted that total rainfall would be at around 95% of the long term average and would arrive on 5th June at the coast of Kerala. For a normal monsoon landfall in Kerala is on the 1st of June. One fear was – and still is – that if an El Niño develops this year, then a further shortfall of rain in the 4 months of the monsoon season might occur.

It is still not clear if an El Niño will develop. But the monsoon which was stationary south of Sri Lanka a few days ago has developed rapidly in the last 24 hours and the northern limit has advanced well into southern India. The eastern  end of the northern limit is still relatively static compared to the western end, but is expected to develop in the next 2 or 3 days.

IMD: 

  1. Southwest monsoon has set in over Kerala today, i.e. 6th June 2014. The southwest monsoon has further advanced into most parts of south Arabian sea and Kerala, remaining parts of Maldives-Comorin areas, some parts of Tamilnadu, most parts of southwest Bay of Bengal and some parts of westcentral Bay of Bengal. 
  2. The northern limit of monsoon passes through 12.0°N/60.0°E, 12.0°N/70.0°E, 12.0°N/74.0°E, Kozhikode, Coimbatore, Cuddalore, 13.0°N/83.0°E, 16.0°N/87.0°E, 18.0°N/90.0°E and 21.0°N/92.0°E. 
  3. Conditions are becoming favourable for further advance of Southwest Monsoon into remaining parts of south Arabian sea, some parts of central Arabian sea, remaining parts of Kerala, some parts of south Karnataka, some more parts of Tamilnadu and Bay of Bengal during next 2-3 days. Conditions continue to remain favourable for further advance of Southwest monsoon into some parts of northeastern state during next 48 hours.
Monsoon advance  2014 June 6th - source IMD

Monsoon advance 2014 June 6th – source IMD

Indian monsoon on schedule

June 10, 2013

The Indian monsoon season has just started and officially runs from June to September. It seems to be on schedule and perhaps a little early in the west and a few days late in the east. Mumbai is seeing heavy rains a few days early.  Last year the monsoon was somewhat delayed and not too regular though it was “average” taken over the entire 4 months. With industrial growth still somewhat in the doldrums a boost to agricultural output will be very welcome.

( from IMD).

Monsoon progress 10th June 2013

Monsoon progress 10th June 2013

There are no signs of the catastrophe scenarios that climate models take delight in forecasting about the effects of global warming on the Indian monsoon.

Late surge gives some flooding but overall a “normal” 2012 Indian monsoon

September 30, 2012

 

The official 4-month monsoon season in India ends today and the IMD has issued its last press release for this season.

Rainfall was lower than normal in the first two months (-22% at the end of July) and surged somewhat in the final two.  The monsoon takes the shape of a skewed “U” and advances N-W and withdraws to the S-E. The withdrawal of the South-West monsoon is underway but it is slightly delayed and this late withdrawal also helps in bringing additional rainfall especially at the ends of the “U”  in the North-West and the North-East (with flooding recently in Pakistan and Assam).

Withdrawal of 2012 monsoon: IMD

Until September 26th, total rainfall was running about 7% less than the long-term average and within “normal” limits.

2012 Monsoon – Cumulative rainfall till 26th September : IMD

Though total rainfall will be almost “normal”, agricultural production will be slightly disturbed because of the uneven rainfall during the 4 months.

Related: https://ktwop.wordpress.com/2012/09/10/with-3-weeks-to-go-the-indian-monsoon-rains-have-recovered-somewhat/