Interior Karnataka rainfall this SW Monsoon is doing well, and is in excess. As on 12th September, S.I.K. is in excess by 35%, having received 344 mms against a normal of 254 mms, and N.I.K. is excess by 13%, having received 440 mms against 390 mms.
The best part of the rains were in this month (September) itself. N.I.K. received 96 mms so far this month, against a normal rain of 40 mms, thus being 134 % excess for September. While for S.I.K, it was 120 mms against 33 mms and excess of 261 %.
Bangalore (Urban) is doing well this year. Having actually received (till 12th September) 344 mms against a normal of 255 mms (+35%). And Bangalore (Rural) actually got 409 mms against 328 mms, excess of 25%. Best performer is Mandya District, showing 55% excess.
Bangalore Diagram with Daily and seasonal rain:
The overall State average is also +14%.
So, with more to come this month, Karnataka is reaping a good harvest from SWM.
New ! Tamil Nadu Climate Averages for 2013..See Rohit's Page
Report posted on Tuesday, 10th:
The UAC enters the Arabian Sea via Konkan, and can strengthen the West Coast trough (for a couple of days)...
On Wednesday 11th September:
The UAC enters the Arabian Sea in the South Konkan region. Thus, the west coast trough gets activated.
Another East-West trough at 925 mb level and 850 mb levels, runs from North TN coast to Central Bay.
Thunder showers will occur in Konkan, Madhya Maharshtra, N.I.Karnataka and Northern TamilNadu.
Orissa and Kolkata can get thunder showers on Wednesday.
Regions to watch out for heavy rains: Entire Madhya Maharashtra belt (Nasik-Pune-Kolhapur-Sangli), adjoining N.I.Karnataka, Goa and parts of North TN.
Mumbai: Light showers in some parts early morning. NE winds in the day. By evening, Thunder showers, heavy in some parts. Outer townships will develop thunder storms by evening.
Since these thunder showers are generally localised and in concentarated areas, rainfall amounts will vary upto 30 mms. More in outer townships.
Pune: Thunder showers in many parts of city and surrounding regions. Many areas will get upto 25-30 mms of rain.
Chennai: Thunder showers in some parts of the city and outer regions. Rains may increase from night. Upto 20-25 mms (avg) expected by Thursday morning.
Delhi NCR: As the axis goes South, Easterly winds will prevail over the region. Some moisture may bring a few showers in some pockets in NCR.
Thursday 12th/Friday 13th: SWM may withdraw from some more parts of Punjab, Haryana and Rajasthan.
The monsoon axis slides southwards towards the Central India region. With the high pressure at 850 mb, and reducing UTH, it becomes favourable for the SWM to withdraw from regions in Northern and NW India on Thursday.
An UAC/low pressure may form of the North AP coast. This would be embedded in the trough mentioned in the Wednesday narration.
Thunder showers continue on Thursday in Madhya Mah/Goa and int North Karnataka, but on a reduced scale. Konkan will get thunder showers.
Mumbai: Cloudy day, and thunder showers by evening in many parts of city. Decreasing thunder shower intensity in outer townships.
Pune: Thursday will also see showers in some areas, but chances of showers on Friday are less.
Chennai: Thunder showers in many parts , and rainfall amounts increasing over Wednesday . On Thursday, it will be cloudy and daytime showers will keep the day temperature lower. Rain amount will be around 35 mms by Friday morning. Friday some showers again, but rains reducing by night.
Pic taken by Tejas Baxi from Borivali,Mumbai on Tuesday evening
Follow up of Monday and Tuesday weather events:
The UAC is currently over Interior Southern AP, but the associated upper level trough in the SW, of the system extends upto Madhya Mah.
The trough, is likely to extend into the Arabian Sea.
On Monday, good rainfall was recorded in N.I.Karnataka. Prominent amongst them were around the region identified by vagaries.
Karadi (Bagalkot, N.I.Karntaka) 165 mms, Hunasgi (Gulbarga, N.I.Karntaka) 128 mms, Kakkera 119 (Gulbarga) 119 mms, Gajendragad (Gadag, N.I.Karnataka) 93 mms, Jegerkal (Raichur) 53 mms.
In Tamil Nadu, Nagapattinum, Thanjvur and Cuddalore regions got good rains on Monday.Chennai, showers by evening/night. Tuesday again, as per estimate, and the rains moved Westwards and concentrated in S.Madhya Mah and adjoining Karnataka, almost obeying the forecast.(Circled Area)
Mumbai and outer townships also got thunder showers. Rains lashed Pune and Mahableshwar.
Details and rain amounts will appear tomorrow...