The National Building Research Organisation (NBRO) has issued a Level 2 (Amber) landslide early warning for parts of Ratnapura and Kalutara districts. The warnings state that since rainfall has exceeded 100mm during the last 24 hours, and due to the continues downpour, people living in these districts have been cautioned of the possibility of landslides, slope failures, rock falls, ground subsidence. The NBRO issued an Amber alert Landslide warnings in the following areas.
- Kalutara District- Palindanuwara Divisional Secretariat Division(s) (DSD) and surrounding areas.
- Ratnapura District - Eheliyagoda Divisional Secretariat Division(s) (DSD) and surrounding areas.
Yellow alerts have been issued for parts of Colombo, Galle, Kegalle, Ratnapura and Kalutara districts. They are:
- Colombo District - Seethawaka Divisional Secretariat Division(s) (DSD) and surrounding areas.
- Ratnapura District - Ayagama, Ratnapura, Kiriella, Kuruwita and Elapatha Divisional Secretariat Division(s) (DSD) and surrounding areas.
- Galle District - Elpitiya,Nagoda and Neluwa Divisional Secretariat Division(s) (DSD) and surrounding areas.
- Kalutara District - Bulathsinhala Divisional Secretariat Division(s) (DSD) and surrounding areas.
- Kegalle District - Dehiowita, Kegalle and Yatiyanthota Divisional Secretariat Division(s) (DSD) and surrounding areas.
NBRO has warned that should residents see development of cracks, ground subsidence, slanting of trees, cracks on floors built on slopes, sudden appearance of springs or muddy water should alert the authorities.