Thiruvananthapuram: The India Meteorological Department (IMD) has issued a five-day weather forecast, sounding a yellow alert for northern Kerala on July 21, 2026. Both Kannur and Kasaragod districts are on high alert as changing atmospheric conditions point toward intense local downpours.

Rain intensity and warning criteria

According to official IMD criteria, a yellow alert signifies the potential for isolated heavy rainfall—defined as precipitation measuring between 64.5 mm and 115.5 mm within a 24-hour window.
Public safety and precautions

Residents in low-lying and landslide-prone areas as well as local authorities are advised to remain vigilant as short-burst downpours could cause localised waterlogging.