The India meteorological department (IMD) has said that there will be isolated heavy rainfall of 7-11cm in some districts in the state from September 5 to 7, including in Idukki, Malappuram, Kozhikode and Kannur.
Ernakulam and Kasaragod are also on alert on September 6 and 7. Squally weather with wind speed reaching 40-50kmph is likely from September 5 to 7 and fishermen are advised not to venture into sea during this period. Strong winds with speed reaching 40-50kmph gusting to 60kmph is likely over southwest and west central Arabian Sea. A thunderstorm with lightning is very likely to occur at one or two places in Kerala till Sept 7.
A low-pressure area is likely to form over north & adjoining central Bay of Bengal around September 6. A shear zone also persists over south peninsular India during next 4-5 days. Also, a cyclonic circulation lies over eastcentral Bay of Bengal in middle tropospheric levels.
These conditions are likely to influence enhanced rainfall activity with widespread rainfall, with isolated heavy falls likely over Kerala from September 5 to 7.
However, IMD said that there is a ‘low’ probability of the low-pressure area which is likely to form around September 6 becoming a depression over northwest & adjoining west-central BoB during the subsequent 24 hours. Formation of another low-pressure area in quick succession over central parts of the BoB is also likely during the first half of second week.
According to the extended range forecast, there will be above normal rainfall over the state till September 9. In the August 26 – September 1 week, there has been 143% increase in rainfall.
