Thiruvananthapuram: Heavy rain accompanied by gusty winds has continued to lash various parts of Kerala since Sunday night. The India Meteorological Department (IMD) has forecast moderate to very heavy rainfall across the state due to a cyclonic circulation over the Gulf of Mannar and adjoining southern Tamil Nadu.

An orange alert has been issued for six districts — Pathanamthitta, Alappuzha, Kottayam, Ernakulam, Idukki, and Thrissur — on Monday. All other districts are under a yellow alert.

An orange alert indicates very heavy rainfall (11–20 cm), while a yellow alert denotes heavy rainfall (6–11 cm).

In Thrissur, waterlogging due to continuous downpours disrupted traffic along the Athirappilly–Malakkappara route for hours. Tourists and KSRTC passengers were stranded after an overflowing canal submerged the road. Although traffic has since been restored, the district administration has temporarily shut down all tourist spots in the region due to adverse weather.

Rivers across multiple districts are in spate as rainfall continues. Authorities have issued flood warnings for areas near riverbanks and advised coastal residents to remain vigilant due to possible sea incursion.

In the hilly areas of Malappuram, flash floods in the Chokkad and Olippuzha rivers left parts of Karuvarakundu and Kalikavu submerged on Sunday night. In the Chenaakkal region, several houses were flooded as the Chokkad river overflowed.

In Kottayam, mudslides were reported at Teekoy and Thalanad, though no casualties were reported. The district experienced heavy rain throughout Sunday night.

According to the IMD, heavy rainfall is expected to continue across Kerala until August 7.

"Strong Westerlies/ North Westerlies likely to prevail over Kerala and Lakshadweep area in the lower tropospheric levels.Under the influence of these, widespread rainfall activity with Heavy rainfall (7cm to 11cm in 24 hours) to very heavy rainfall (12cm to 20cm in 24 hours) with extremely heavy rainfall (> 20cm in 24 hours) is very likely to occur at one or two places in Kerala on 5th August, Heavy rainfall (7cm to 11cm in 24 hours) to very heavy rainfall (12cm to 20cm in 24 hours) is very likely to occur at one or two places in Kerala on 3rd, 4th , 6th & 7th August and Heavy rainfall (7cm to 11cm in 24 hours) is very likely to occur at one or two places in Kerala on 8th & 9th August and over Lakshadweep from 3rd to 6th August 2025,” reads the IMD alert.

Orange and yellow alerts are sounded in several districts till August 7 as incessant rain is expected.

Orange alert in districts
August 4 – Pathanamthitta, Alappuzha, Kottayam, Ernakulam, Idukki, Thrissur
August 5 - Pathanamthitta, Alappuzha, Kottayam, Ernakulam, Idukki, Thrissur, Palakkad, Malappuram
August 6 – Malappuram, Kozhikode, Wayanad, Kannur, Kasaragod
August 7 – Kannur, Kasaragod

Yellow alert in districts
August 4 – Thiruvananthapuram, Kollam, Palakkad, Malappuram, Kozhikode, Wayanad, Kannur, Kasaragod
August 5 - Thiruvananthapuram, Kollam, Kozhikode, Wayanad, Kannur, Kasaragod
August 6 – Pathanamthitta, Alappuzha, Kottayam, Ernakulam, Idukki, Thrissur, Palakkad
August 7 – Malappuram, Kozhikode

Fishing banned along Kerala coast, ‘Kallakkadal’ warning in place
Swell waves known as ‘Kallakkadal’ will trigger high tidal waves along the coastal areas of Thiruvananthapuram, Kollam and Alappuzha from 5.30 pm on Sunday to 8.30 pm on Monday, alerted the Indian National Centre for Ocean Information Services (INCOIS).

These areas are likely to experience waves of up to 1.5 to 1.8 metres during this period. Fishermen and coastal residents are advised to remain vigilant due to the possibility of sea incursion. The India Meteorological Department has restricted fisherfolk from venturing into the sea along Kerala, Karnataka and Lakshawdeep coasts till August 7.