Tamilnadu :: Can convective activity be termed as monsoon rain ?? ... http://ow.ly/61vkx

@ranganaathan Chennai - yes showers approaching from w-s-w. Will reach in another 1hr. Chances are there for a long drizzle after that!

Chennai - a fresh t.shower has blossomed over s-w of arakonnam which is around 80km west of Chennai center. Moving east.

A super t.shower is now 11:07pm crossing south of chengalpet and approaching mahabalipuram and kalpakkam

Can convective activity be termed as monsoon rain

Many a times it is given to note that during SWM period the cause of rain in Tamilnadu is referred to as convective. It is convective activity due to warm air advection during these rainy days. Most of the time Warm Air Advection [WAA] is inferred from radar products. Moist warm air from WEST after crossing western ghat gives rainfall from WEST to EAST in Tamilnadu. To day [11.08.2011 / 2200 hrs IST] it is evident from satellite imagery and DWR products that moist air is advecting and it may rain at S-SW /NW parts of Villupuram & Puducherry to night.

@shanpati >> Showers along S. kerala is isolated and far between. Enjoy the trip !! If possible report from there. Thanks

@shanpati >> Present Showers along Kerala coast will subside from 12-Aug and some scattered sharp showers will be there till 17-Aug

@shanpati >> Generally showers along entire S-W peninsula coast is on lower side now and it'll stay that way till 17-Aug.

Wet cover hangs heavy over Gujarat, north-west ... http://ow.ly/60yOl

As a NEW circulation has formed over N.Bay and S.Bengal ... more heavy showers likely in this zone from Today.