If we have a look at the rain fall distribution map of 10th. morning (IMD), we see some fairly good amounts of rain in Kerala and the North-East on Wednesday.The NRL rain accumalation map for the day of 10th. June shows some rainfall in South Konkan and Goa, and some parts of coastal Gujarat.
What I am coming to is still there is very sparse rainfall north of the Karnataka coast. I would justify an advance (of the Monsoon) North of Karnataka only after the predicted Low comes into effect off the Goa coast.
The formation of a trough off the Goa coast (see map), still in the initial stage seen as an upper air low,and forming, may have inspired the announcement of the advance into South Konkan. In the MSLP map, a weak ridge is still visible in the Arabian Sea. (The reason for the North-West winds). This needs to be eliminated, to ensure a full fledged monsoon along the west coast, and for further progress into the interiors thence.
Progress in the sequence forecasted in yesterday's blog: The low in the Bay seems to be creeping inland, and is now a "pulse", which is expected to track westwards through Karnataka. All pieces must fall in place and the low must re-emerge in the Arabian Sea for the monsoon to move north from Monday as estimated.
Shall keep this space updated on the progress.
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