Misty mornings soon in Kerala, northeast monsoon 22% deficient

Northeast monsoon season likely to end up with a deficient run in Kerala this year. Light mist already envelopes highlands of Kerala for the past few days, signalling the arrival of winter

The light drizzle the State has been experiencing for the past few days is likely to give way to misty mornings once the weather system in the Bay of Bengal dissipates. The deep depression over the southwest Bay of Bengal is likely to take the shape of a cyclone by Thursday. However, there is no certainty that the system will move into the Tamil Nadu coast, with most of the models misbehaving to predict the landfall, etc. The system may weaken in the ocean itself because of high wind shear along the Tamil Nadu coast, according to experts.

However, the system triggers widespread rainfalls across Tamil Nadu and overcast skies with light drizzles in Kerala. Nevertheless, the light rains will not last long for Kerala as per the current synoptic conditions. A light mist has already enveloped the highlands of Kerala for the past few days, signalling that winter was just around the corner. The appearance of mist in the morning air indicates the atmosphere is becoming stable. This is an indication of the cessation of the rainy season and the season slowly changing to cold days.

Though, climatologically, cyclogenesis is likely in the Bay of Bengal in December, it is expected to not affect the weather of Kerala significantly due to its geographical peculiarities. In the latest incident, the deep depression caused the strengthening of easterly wind originating from the bay. However, it loses its energy while crossing the mountain barrier of the Western Ghats, and intensity drastically reduces, not bringing enough moisture into the atmosphere over Kerala. On the other hand, Tamil Nadu is hot, and cyclone probability may be there up to December end, although intensification of the system is doubtful, said experts.

Meanwhile, the northeast monsoon season is likely to end up with a deficient run in Kerala this year, as the rain is around 22 percent deficient in the State as of November 27. The State has received only 355.4 mm of rain up to November 27, against the long period average of 454.6 mm of rain. Last year, the State netted a total of 624.9 mm of rain against the seasonal average of 491.9 mm of rain. Out of the 14 districts in Kerala, rain is deficient in eight districts this year.

Published - November 27, 2024 08:25 pm IST