Central and North Kerala are likely to receive isolated heavy rain on Wednesday under the influence of a low pressure area over central parts of Madhya Pradesh and neighbourhood. A yellow alert has been sounded in eight districts from Ernakulam to Kasaragod except Palakkad warning of isolated showers (1.5 cm to 6.4 cm).
According to a weather bulletin issued by the India Meteorological department (IMD), apart from the low pressure, the monsoon trough is active and south of its normal position. An off-shore trough at mean sea level runs from the Gujarat coast to the Maharashtra coast. Further, a cyclonic circulation lies over the northwest Bay of Bengal and neighbourhood extending up to mid tropospheric levels tilting southwestwards with height.
