In the advisory, the US said the heavy southwest monsoon rains triggered landslides and floods in the state, and American citizens should avoid visiting all affected areas in the state.
With water levels rising in various dams and reaching almost their maximum capacity, shutters of at least 22 reservoirs in Kerala have been opened to drain out excess water.
Heavy rains for the past two days and release of water from the Idamalayar dam yesterday, resulted into localised flooding in low-lying areas in the northern districts of Kerala.
The flood water also triggered landslides at some places.
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