MUMBAI: The wet spell that began with the onset of monsoons on Wednesday has given Mumbai 94% of its June rain so far.
The showers continued, albeit way more moderately, on Thursday in the city even as the southwest monsoon covered the entire state.
The IMD has forecast heavy rain (orange alert) at isolated places in the city for the weekend.
An alert for extremely heavy rain has been issued for Monday.
With showers continuing, the average precipitation is likely to be covered in the first fortnight of June itself.
Since June 1, 474mm rainfall has been recorded in the city against the average monthly total of 505mm.
As much as 338mm of that is above normal for the period, said meteorologists.
In the 24 hours ending on Thursday morning, the total rainfall recorded at the IMD Santacruz observatory touched 231.3mm, which falls in the extremely heavy rain category.
About 222mm of that had fallen in the 12 hours between 8.30am and 8.30pm on Wednesday.
The rainfall between June 9 and 10 has clearly surpassed last year’s highest June one-day rain of 65mm on June 6.
Historical data shows the highest one-day June rainfall recorded was 399mm on June 10 in 1991.
Intermittent showers and heavy rain at a few places continued throughout Thursday with the IMD Santacruz observatory gauge showing 48.8mm rainfall in 12 hours between 8.30am and 8.30pm.
Areas like Mulund and Andheri in the city, and adjoining areas like Navi Mumbai and Thane recorded significant rain.
However, IMD Colaba recorded a meagre 16.8mm rain the 12 hours.
The IMD said they are closely observing the weather models for the coming days with extremely heavy rain expected on some days.
“Satellite images as on Thursday evening indicated dense cloud formation over north Konkan and the interiors of Maharashtra too.
As per IMD forecast, a low pressure system is expected to form in 24 hours in north Bay of Bengal and very likely to intensify in the subsequent 24 hours.
This will bring a lot of rain over Konkan, including Mumbai, in next 4-5 days,” said an IMD official.
A warning for fishermen is in place.
“Strong winds with speed reaching 40-50 kmph gusting to 60 kmph are likely to prevail along and off the north Maharashtra coast on June 9-13.
Fishermen are advised not to venture along and off the north Maharashtra coast during the above mentioned period,” said IMD.