I do not expect much from the Low mentioned below, hence do not think it should be numbered.
But, I expect another "better" low in the Bay around the 29th of August.
The mentioned vortex (Friday Blog) off the West coast may form by Tuesday, and strengthen the trough.
A Low has detached itself from the monsoon axis in the North, and stands independently below the axis. Situated on the Orissa/W.Bengal coast, and is at 1000 mb.
A trough runs down south from this low. Running along the Easy Coast, the trough cuts inland from North TN coast, and at 1200 UTC Saturday, shows a line of wind discontinuity from North TN coast down Southwards. Winds to the West of the "line" are NW and SW to the East of the "Line."
The progress of the Low and trough needs to be monitored next 12 hrs.
Saturday Thunderstorms Lash Chennai...
Pradeep promptly sends these figures..
IMD official Rainfall in mm till 8.30 pm
Taramani – 86
Ennore – 0
Nungambakkam – 0
Redhills – 0
IMD official Rainfall figures in mm till 7.30 pm
Avadi – 38
Sholliganallur (Sathyabama University) – 16
Guindy (Anna University) – 14
Puzhal – 9
Kattupakkam (SRM University) – 6
Rainfall figures in mm till 8.00 pm
Uttiramerur – 36
Madurantakam – 31
Ellapuram – 13
Kaveripakkam – 7
R.K.Pet – 6
Kancheepuram – 5
Kadambathur – 4
Wow 72 mm in just 45 minutes in Taramani...Southern Chennai really got battered
Nungambakkam 0 mm
Marina Beach 0 mm
Redhills 0 mm