9th June:
Not much improvement in the various level wind charts since put on 7th post.
Major Monsoon wind and pressure still shy of a quick monsoon advance.
It seems the West Coast off shore trough, though not hugging the coast,
might encourage the temporary current along the coast after 15th...Meaning inland regions wait.
Vagaries expects a weak advance along the coast starting from coastal Karnataka from 15th and reaching North Konkan (Mumbai) by 18th.
But, a weak onset possible for Raigad district and Mumbai region between by 18th June.( a subdued SW Monsoon activity).
However, if this window is missed, then onset looks likely around 20th/21st June.
Strong dry air intrusion at 700 and 500 hPa from the NW, suppressing cloud formation over Arabian Sea and Western peninsula north of Ratnagiri district
Initially Inland Monsoon date uncertain.
Mumbai with a few spells of pre Monsoon thundery showers till 18th can get accumulated 6 days rainfall (varying between Scruz & Colaba ) of 20 - 40 mms average. An isolated Thundershower may give a heavy localised shower.
Hot an humid. Temperature range 35 - 29/30°.
This year the night Temperature is high for a longer sustained period of nights. Colaba had (till 9th) 4 consecutive nights of 30°. ( 2007 had 4 nights & 2016 had 5 nights of 30° night Temperatures.
Citizens are surely feeling more heat this year, even though Mumbai has been thru this before.. 35° is not new.
Reason: We are now used to comfort of A/C more than before. Night sleep-ac car/bus-ac office-ac eating places. So, coming out in real feel 39° & 80%humidity from 21° & 50% is absolutely 😓😡
And of course our over enthusiastic press & social media.
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Pune:: Experiencing continuous warm nights around 25/26°as the Low temperature. However all time low temperatur record is 29.4° recorded in 1979.
Few spells of thunder showers with the odd heavy convective shower. No quick sign of Monsoon yet till 18th.
Accumulated rainfall of next 6 days may average 15 - 30 mms.


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