BB-10,
now as a depression is currently at 10N and 84E, with a core pressure of 1002
mb.
As the system is just South of the
favourable ridge (mentioned earlier), it will track West, and due to adjacent
wind shear at 20 knts, it will deepen more, and develop a stronger wind force
in the Northern semi circle. This semi circle will have winds upto 30 knts, and
Chennai will get gusty NE winds of the same speed from Sunday night itself.
BB-10 will move into central coastal TN around Monday night, with centre at Nagapattinum/Karaikal. Heavy falls
in Puddukotai and Thanjavur districts. But, rainfall will be increasing
throughout the TN regions from Sunday evening, with heavier falls in the
Northern coastal regions.
After crossing land, the system
weakens.
AS-2 , is now located as a low
at 6.5N and 72E, with core pressure at 1006 mb.
I personally make it that this system faces multiple problems in its
life time ! System faces stiff resistance from O-3, which
is moving Eastwards, will not allow it to track Northwards, but force an
Easterly track.
On the other hand, being located far
too Southwards, a superb feeding in the Southern semi circle from Southerly
winds at 30 knts, will strengthen the Southern quadrant with thick clouding.
Problems for the poor guy !!
I feel, it will be forced to track NW
for sometime, and strengthen upto mid Arabian Sea location, and then
dissipate in the sea.
From Monday, as BB-10
moves inland.
See vagaries Chart map
for easy reference.
We, see as a result, Easterly winds along South-East coast of India, to
the Mah regions, and South-Westerly wind from AS-2 over the Western side. This
creates a line of dis-continuity in the Peninsula and initiates clouding and an
unstable atmosphere.
Chennai: Increasing rains from Sunday. Rainfall will be around
30-35 mms on Monday (till Tuesday 8.30 am) with gusty NE winds. Rainfall upto
40 mms continues into Tuesday as well. Decreasing amounts from Wednesday.
Good Showers for Bangalore from
Tuesday into Wednesday.
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