The monthly rainfall this November in Mumbai has been the highest ever, the India Meteorological Department (IM-D) said Friday. The monthly rainfall tally as of November 8 stands at 109.3 mm, which is now the all-time high rainfall for the month. The previous all-time high — 101.3 mm — was recorded in November 1979. The IMD has been collating rainfall data since 1901.
The unseasonal rain on the intervening night of Thursday and Friday was also the highest rainfall recorded over 24 hours in November in Mumbai. On November 8, Mumbai recorded 32.6 mm rain in 24 hours ending at 8.30 am on Friday. The Santacruz observatory recorded 30.4 mm between 8.30 am and 5.30 pm on Friday. The most amount of rainfall was recorded in the three hour period on Friday morning.
The IMD had forecast rainfall over Palghar and Thane on Friday, due to Cyclone Maha, and thundershowers on Saturday. The IMD has forecast dry weather in Mumbai on Saturday.
On Friday, light to moderate rain was recorded in the suburbs and areas north of Mumbai, including Thane, Palghar and Dahanu, while south Mumbai recorded only traces of rain.
Rainfall in November is rare for Mumbai. “The influence of weakened tropical Cyclone Maha, which is now a weather depression, is causing rainfall in November,” said an IMD official.
The Arabian sea saw two tropical cyclones one after the other — Kyarr and Maha — which has never happened before.
On November 1, unseasonal rain from afternoon due to Cyclone Maha led to Mumbai recording its highest 24-hour November rainfall (46.3 mm) in 10 years within three hours.
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