A red alert indicates heavy to extremely heavy rain of over 20 cm in 24 hours, while an orange alert means very heavy rain of 11 cm to 20 cm. The weather agency also warned of strong surface winds with speeds reaching up to 60 kmph likely over Kerala in the coming two days. Kerala is bracing for extremely heavy rainfall as the IMD issued a red alert for 11 districts, excluding Thiruvananthapuram, Kollam, and Alappuzha, which are under orange alert . Heavy rainfall in Kerala ’s Thrissur district has led to road flooding and tourist spot closures. The IMD has issued red , orange, and yellow alerts across multiple districts in Kerala . Fishermen have been warned against sea travel till Thursday. A red alert by IMD indicates heavy to extremely heavy rain of over 20 cm in 24 hours, while an orange alert means very heavy rain of 11 cm to 20 cm, and a yellow alert means heavy rainfall between 6 cm and 11 cm. State Revenue Minister K Rajan said that the heavy rains have caused widespread damage in the state and advised people to be cautious.