Posts Tagged ‘SW Monsoon’

Indian monsoon rainfall recovering from deficit but strong El Niño no longer expected

July 18, 2014

Yesterday the monsoon covered the entire country but while this is only 2 days later than the “long term average”, the progress of the monsoon across south and central India has been around a week or 10 days late. Until last week the rainfall was in deficit by over 40%, but heavy rains this week are beginning to eat into this deficit. In the meantime the possibility of a strong El Niño  this year, which could have further depressed the monsoon rainfall, is receding.

With 2½ months of the monsoon season left, there is now a reasonable – and improving – probability that the shortfall will end up at less than 10% of the long term average and that the hit to the Indian GDP will not be too severe.

Climate alarmists (mainly the environmental mafia) have been hoping – and praying – for a strong El Niño, a disastrous monsoon, a strong blow to the agricultural sector and an increase in farmer suicides. They are increasingly likely to be disappointed. Fortunately the cost to consumers usually reduces and the good of society usually increases with the increasing disappointment of the loony green mafia.

The best thing to have happened for Australia in years is probably the recent repeal of the Carbon tax which has – surprise, surprise – caused great disappointment to the loony green mafia.

Monsoon covers entire country 17 July 2014 - IMD

Monsoon covers entire country 17 July 2014 – IMD

ET:The monsoon delivered this season’s heaviest showers on Tuesday, drenching southern and central India with 50 per cent more rainfall than normal, while international forecasters said the rain-disrupting El Nino phenomenon would be weaker than feared.

The northern and western parts of the country remained relatively dry, but for the country as a whole, Tuesday’s rainfall was 10 per cent above normal, reducing the season’s rain deficit to 40 per cent. The deficit is still abnormally high, but two days of heavy rainfall is expected to speed up crop planting, which was half of last year’s mid-July level. 

The weather office has forecast good rainfall in many parts of the country in the days ahead. Further, the latest forecast of Australia’s weather department could bring some relief to policy-makers as it has suggested that the El Nino weather phenomenon that curtails June-September rains is unlikely to be intense this year.

The Australian Bureau of Meteorology writes in its ENSO wrap-up:

Warming of the tropical Pacific Ocean over the past several months primed the climate system for an El Niño in 2014. However, a general lack of atmospheric response over the last month has resulted in some cooling of the tropical Pacific Ocean.

While the majority of climate models suggest El Niño remains likely for the spring of 2014, most have eased their predicted strength. If an El Niño were to occur, it is increasingly unlikely to be a strong event.

Changes are also occurring in the Indian Ocean. The Indian Ocean Dipole (IOD) index has been below −0.4 °C (the negative IOD threshold) since mid-June, but it would need to remain negative into August to be considered as an event. Negative values are rare when the central Pacific is warmer than average. Model outlooks suggest the IOD is likely to return to neutral by spring. Conditions in the Indian Ocean may have contributed to the above-average rainfall experienced in southeast Australia during June.

 

Indian monsoon starts early and vigorously

June 17, 2013

An almost spectacular start to the Indian monsoon and Delhi has received heavy rains almost two weeks earlier than expected. Two weeks of the official 4 month monsoon period (about 15%) are over and the welcome rains have covered the entire country around one month ahead of schedule. Over 30% of the total expected rainfall for a “normal” monsoon has already been received. So much so that the new airport in Delhi was flooded yesterday, not so much because of problems at the airport but because the drainage in the surrounding areas could not cope with the flow draining out of the airport and caused a back-flow!

Temperatures have dropped to a “pleasant” 31°C and it augurs well for my trip to Delhi in a couple of weeks.

Expectations for a “good” monsoon and a subsequently high level of agricultural growth are high.

ToI:The monsoon hit Delhi and its neighbourhood on Sunday, two weeks before time — and in a record sweep, swiftly covered all of northwest India. 

Besides reaching the capital well before the initially predicted date of June 29, a record occurrence unfolded in a span of 24 hours with the rain bearing system reaching the ends ofnorthwest India a full month before the usual July 15 date. The progress of rains to cover all of India as rapidly as happened over Saturday and Sunday last occurred in 1961. 

Delhi recorded 6.1 mm rain till 8.30 am and 45 mm in the next 12 hours. Palam recorded a day’s highest rainfall in the city in two years with 117.8 mm between 8.30 am and 5.30 pm. The showers have been so plentiful that Delhi will see the Yamuna cross the warning level and maybe even touch the danger mark by June 18. 

The city’s maximum temperature sharply fell to 31.5 degrees Celsius, eight degrees below normal while the minimum was 23.7 degrees.

From IMD:

monsoon 16 June 2013

monsoon 16 June 2013