A active Western Disturbance and its interaction with remnant of Very Severe Cyclonic Storm “MAHA” caused largely excess rainfall over most of the sub-divisions of northwest India, in result, rainfall was 849% above Long period Average (LPA) over northwest India during last week (07 to 13 November, 2019).
Last week’s Cyclonic Storm ‘Bulbul’ (Pronounced as Bul bul) intensified into a Severe Cyclonic Storm in the evening of 7th November, 2019 over Westcentral & adjoining Eastcentral Bay of Bengal, into a Very Severe Cyclonic Storm in the early morning hours of 8th over Westcentral & adjoining Eastcentral Bay of Bengal. Thereafter, it weakened into a Severe Cyclonic Storm and crossed West Bengal Coast, close to Sunderban Dhanchi forest during 2030 to 2330 hours IST of 9th with a maximum sustained wind speed of 110-120 kmph gusting to 130 kmph. After crossing, it weakened into a Cyclonic Storm in the early morning hours of 10th over Coastal Bangladesh & neighbourhood, into a Deep Depression in the afternoon of 10th, into a Depression in the early morning hours of 11th over southeast Bangladesh & adjoining south Tripura and into a Low Pressure Area over southern parts of Tripura and neighbourhood in the morning of 11th.
Heavy to Very Heavy rain/snow occurred at isolated places over Jammu & Kashmir on one day and Heavy to Very Heavy rainfall at isolated places over Tamil Nadu and Puducherry & Karaikkal on two days and over Odisha, South Interior Karnataka and Gangetic West Bengal on one day each during the week.
Weekly rainfall scenario (07 to 13 November, 2019)
During the week, rainfall was above Long Period Average (LPA) by 44% over the country as a whole. Details are given below: