Global weather forecasters have issued a La Nina alert, signalling high probability of the rain-boosting phenomenon, which should further increase monsoon rainfall and boost the rural economy with a record harvest.
Chances of La Nina, which is associated with cooling of the Pacific Ocean waters, have increased to 70% from 50%, the widely respected Australian weather office said in its latest update on the phenomenon.
The phenomenon is associated with cooling of waters in the equatorial Pacific region and strengthening of trade winds. La Nina has been developing in recent weeks but its probability was not considered high until now. “La Nina alert indicates chance of La Nina forming in 2020 is around 70% — roughly three times the average likelihood,” Australia’s Bureau of Meteorology said in its fortnightly bulletin.
The national weather office expects the phenomenon to affect the entire country and cause post-monsoon showers as well. "A weak La Nina seems likely in late September, and we might see its effects even after the monsoon has concluded," DS Pai, head of longrange forecasting at the India Meteorological Department said.
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