Sri Lanka, April 3 -- A warm weather advisory has been issued for residents of the Western, Sabaragamuwa, Southern, Eastern, North-Western, Northern and North-Central provinces and in the Monaragala District.

Accordingly, the heat index, the temperature felt by the human body, is likely to increase up to the 'Caution Level' at some places in the Western, Sabaragamuwa, Southern, Eastern, North-Western, Northern and North-Central provinces and in Monaragala districts tomorrow (4).

The Heat Index Forecast is calculated by using relative humidity and maximum temperature, and this is the condition that is felt on your body, according to the Met Department.

The Department noted that prolonged exposure to the sun and outdoor activity will res...