Thiruvananthapuram: In its latest weather bulletin, the India Meteorological Department has withdrawn the Orange alert issued earlier and put out a yellow alert notice in the 12 districts.
All districts except Kannur and Kasaragod have been issued a Yellow alert warning for Friday.
An orange alert is declared when heavy to very heavy rainfall (115.6-204.4mm) is expected, while a yellow alert is issued when heavy rain (64.5-115.5mm) is expected.
The spell of heavy rain is likely to continue till Sunday as a result of two low- pressure areas formed over the Arabian Sea and the central part of South Bay of Bengal.
The IMD has stated that a low-pressure area has formed over central parts of South Bay of Bengal with associated cyclonic circulation extending up to 5.8 km over mean sea level.
It is likely to move westward in the next few days. This is the fifth instance of low pressure formation over the Bay of Bengal in October.
In addition to this, a depression has formed over the Arabian Sea. Under the influence of these two low-pressure formations, the IMD has predicted heavy rainfall and thunderstorms over Kerala between October 27 and 31. (A depression is an area of low pressure.)
A trough extending from the southeastern Arabian Sea off the the Kerala coast to the central-eastern Arabian Sea off the Karnataka coast has also been identified.
Kerala may also experience gusty wind speeding upto 40kmph in some places, the IMD predicted.
Latest rainfall forecast issued by IMD
Oct 29: Thiruvananthapuram, Kollam, Pathanamthitta, Alappuzha, Kottayam, Ernakulam, Idukki, Thrissur, Palakkad, Malappuram, Kozhikode and Wayanad.
Oct 30, 31: Thiruvananthapuram, Kollam, Pathanamthitta, Alappuzha, Kottayam, Idukki, Ernakulam, Thrissur, Palakkad, Malappuram, Kozhikode and Wayanad.
Warning for fisherfolk
Fishermen are advised against venturing out to the sea from October 29 till 31.
The Kerala State Disaster Management Authority (KSDMA) has advised those living along the sea shores to move to safe places on these days. It has also advised to securely lodge fishing vessels and boats at harbours.
People are advised not to visit beaches and sea shores in the next few days.
Kerala has been battered by a slew of landslides and floods in recent weeks after incessant rains in the region. Forty-two lives have been lost to various rain-related incidents across the state including two major landslides which were reported in Kottayam's Koottickal and Idukki's Kokkayar.
According to the KSDMA, at least 90 houses were destroyed and over 700 were partially damaged.
Experts attribute the extreme weather events to various causes, including the warming of the seas, unabated developmental activities wrecking the land and waterbodies and delayed withdrawal of the monsoon.
The southwest monsoon withdrew from the entire country on Monday, making it the seventh-most delayed retreat since 1975, according to the national weather agency.
Simultaneously, the northeast monsoon rains (Thulavarsham as it is known locally) commenced over southeast Peninsular India bringing rains to Tamil Nadu.
Kerala has already received more rain than what is usually received in the period from October 1 to December 31.