The northeast monsoon is coming into its own with rainfall having been recorded at most places over Kerala and Tamil Nadu during the 24 hours ending Tuesday morning.
Many places over coastal Andhra Pradesh, south Karnataka and Lakshadweep also have received rains while they were confined to a few places over Rayalaseema and north Karnataka.
HEAVY WEATHER
A heavy weather warning for Wednesday and Thursday said that heavy rainfall would break out at one or two places over Tamil Nadu, Kerala, Lakshadweep and coastal Andhra Pradesh.
The main rain-driving features are the troughs of low-pressure over both peninsular seas, an India Meteorological Department (IMD) update said.
The leading one extended from southwest Bay of Bengal to west-central Bay of Bengal while the other cut a swathe from Lakshadweep area to east-central Arabian Sea.
Meanwhile, the US National Centres for Environmental Prediction suggested that the week starting November 2 might witness frenetic action around the Gulf of Mannar and southeast Tamil Nadu coast on the Bay of Bengal side.
FRENETIC ACTION
The Arabian Sea too may witness some action with a build-up indicated over east-central Arabian Sea. This could likely result as the trough that links Lakshadweep with east-central Arabian Sea matures.
Insat satellite imagery on Tuesday afternoon revealed the presence of convective (rain-bearing) clouds over parts of coastal Andhra Pradesh, Rayalaseema and Kerala.
These clouds were also spotted to over Tamil Nadu, west-central and southwest Bay of Bengal, south Andaman Sea and south and east-central Arabian Sea.
RAIN FORECAST
An IMD guidance until Friday spoke about the possibility of rain or thundershowers at most places over coastal Tamil Nadu.
Many places over interior Tamil Nadu, coastal Andhra Pradesh, Rayalaseema, south Karnataka, Kerala, Lakshadweep and Andaman and Nicobar Islands and at one or two places over the remaining parts of south peninsular India may also witness rain or thundershowers.