The Department of Meteorology has warned of thundershowers accompanied by severe lightning in parts of Uva, Sabaragamuwa, and Southern provinces, as well as in the Kandy, Nuwara-Eliya, and Ampara districts.
Temporary localised strong winds may also occur during these storms.
The public is urged to take precautions, including avoiding open areas and staying indoors during thunderstorms.
Authorities advise against using wired telephones or electrical appliances connected to mains during this time.
Precautionary measures are essential to minimize lightning-related damage and injury.