Expect rainy evenings in Mumbai this week, says weather department | Mumbai news - Hindustan Times
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Expect rainy evenings in Mumbai this week, says weather department

Hindustan Times | ByHT Correspondent, Mumbai
Oct 09, 2017 08:22 PM IST

Last spell of southwest monsoon over city; temperature and humidity will remain high, says India Meteorological Department

The weather bureau has predicted moderate to heavy thundershowers, mostly during evening hours, in Mumbai throughout this week.

Carry your umbrellas, Mumbaiites, there will be thundershowers this week.(HT File)
Carry your umbrellas, Mumbaiites, there will be thundershowers this week.(HT File)

Since Friday, Mumbai has been seeing cloudy skies with high humidity, and thunder, lightning and rain in the evenings. These conditions are expected to continue.

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“This is the last spell of the southwest monsoon over the city,” said KS Hosalikar, deputy director general, western region, India Meteorological Department (IMD). The southwest monsoon is currently withdrawing from Gujarat and may take another 10 days to withdraw from north Konkan, which includes Mumbai.

Hosalikar said the rise in temperature during the day is heating up the land. As hot air expands, it rises and cools, which leads to condensation. This builds up clouds and causes what is called convectional rains.

“The latest satellite imagery indicates that a depression has formed over West Bengal and the Bay of Bengal, which will pull more moisture from the Arabian Sea and result in heavy to very heavy rainfall over the Konkan coast, including Mumbai. Also, factors such as trough over the Arabian Sea, over north central coastal Karnataka, and a cyclonic circulation over central Maharashtra will intensify rainfall,” Hosalikar said.

The Santacruz weather station, which represents the city’s suburbs, has so far recorded 68.2mm rain in October, which 22.2mm above normal. Colaba, which represents south Mumbai, has recorded 29.5mm rain, which is 16.9mm below normal.

From June to September this year, Mumbai has already received 23% more rain than average.

Between 8.30am Sunday and 8.30am Monday, Santacruz and Colaba recorded 10mm and 5.2mm rain, respectively.

Humidity levels have been uncomfortably high since Friday, with the suburbs recording 87% to 92% humidity and south Mumbai recording 92% to 97% humidity.

The day temperature recorded at Colaba was 32 degrees Celsius (0.3 degrees Celsius below normal), and Santacruz recorded 31.7 degrees Celsius, a degree Celsius below normal. Night temperatures were close to the normal mark.

The IMD has also predicted thundershowers in most parts of Maharashtra through this week.

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