Monday’s showers introduced the August rain tally to 1,247.7mm, making it the very best in August since 1959. In accordance with the India Meteorological Division (IMD), this month’s rain was the second highest all-time August rainfall, after 1,254mm recorded in 1958, which implies it was simply 6.3mm wanting crossing the all-time August file. In August 1983, Mumbai had recorded 1,243.8mm rain.
With 7.6mm rain between 8.30am and eight.30pm on Monday, the Santacruz climate observatory, consultant of the suburbs and Mumbai, recorded 1,247.7mm rain from August 1 to August 31 8.30pm. South Mumbai recorded its second highest August rainfall for the interval of 1959-2020, because the Colaba climate station recorded 1,132.9mm rain between August 1 and eight.30pm on August 31. IMD knowledge exhibits the highest-ever rainfall recorded in Colaba was 1,187.6mm in August 1983.
IMD director basic Mrutyunjay Mohapatra mentioned, “As per our correct forecast, total Maharashtra, particularly north Konkan, together with Mumbai, acquired above-normal rain throughout July and August, breaking rain information throughout each the months.”
Mohapatra mentioned throughout August, the formation of 5 low-pressure climate methods – a area of decrease or decreased atmospheric stress than regular inflicting climate disturbances together with elevated precipitation and cloud formation – within the Bay of Bengal led to 26.6% extra rain or the very best month-to-month rain pan-India since 1973. “For Mumbai, recurring prevalence of a mid-tropospheric circulation (separate system) over south Gujarat and north Konkan coast concurrently led to an lively monsoon trough and elevated moisture incursions from the Arabian Sea, resulting in average to heavy rain all through many of the month,” he mentioned.
This month, the town witnessed one extraordinarily heavy rain day (August 3-4), one very heavy rain day (August 5-6 when south Mumbai acquired 331.8 mm over 24 hours), two heavy rain days and 12 average rain days. Remaining had been gentle showers, with no rain on solely two days of the month (August 2 and 13).
Mumbai acquired 50% of its August common rain (585.2mm) in simply the primary 4 days, with 293mm rain. Of this, 271mm was recorded between August 3 and August 4. The month-to-month imply rain mark was crossed on August 9, and thereafter gentle to average showers continued with just a few intense spells as much as August 21. Between August 29 and 31, the town witnessed average to heavy rain spells that allowed the 1983 month-to-month rain file to be damaged.
Impartial meteorologists mentioned above-normal August efficiency was indicated by lake ranges (supplying water to Mumbai). With simply 37.2% of the required quantum on August 5, lake ranges rose to 60% by August 13, additional 85% by August 19, and presently stands at 96.1%.
IMD mentioned September is prone to have rain showers, however not as sturdy as July and August. Impartial meteorologist and PhD researcher on the College of Studying, United Kingdom Akshay Deoras mentioned below-average rainfall exercise is feasible in the course of the first fortnight of September. “The primary fortnight is wanting unusually dry, in contrast to July and August the place total month-to-month rainfall occurred within the first few days solely,” he mentioned. IMD has predicted gentle to average rain from September 1 to 4.