Depression Over Southeast Arabian Sea & Lakshadweep Area (Download PDF)

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A Low pressure zone was created over Southeast Arabian Sea and along the east central regions of the Arabian Sea. This included the adjoining areas of Lakshadweep. Under favourable environmental conditions, it intensified into a depression over the same region in the morning around 5: 30 am on 10th June 2019 near latitude 11.7°N and longitude 71.0°E.

On the earth’s surface, there are seven pressure belts. They are the Equatorial Low, the two Subtropical highs, the two Sub polar lows, and the two Polar highs.

The equatorial low pressure belts extend 0 to 5° North and South of Equator. Due to the vertical rays of the sun here, there is intense heating.

Image show in Depression over Southeast Arabian Sea area

Image Show in Depression over Southeast Arabian Sea Area

Image show in Depression over Southeast Arabian Sea area

Overview

  • The depression movements over Lakshadweep & East central Arabian Sea were directed towards the north with a speed of about 31 kmph in last three hours and lay centred at 0830 hrs IST on the 10th June, 2019.

  • The latitude over East central and adjoining Southeast Arabian Sea & Lakshadweep area were 12.5°N and longitude 71.0°E respectively.

  • A deep depression during next 06 hours on 10th June 2019 was likely to be intensified apart from the Cyclonic Storm during the subsequent 24 hours and along with a Severe Cyclonic Storm thereafter.

  • The depression was likely to move north-north-westwards during next 72 hours.

Warnings Issued

  • Heavy rainfall warning: It was predicted starting from 10th June to 14th June 2019. The amount of rainfall was supposed to be 64.5 - 115.5 mm/day; Very heavy rain: 115.6 - 204.4 mm/day; Extremely heavy rain: more than 204.4 mm/day was predicted along Kerala, Lakshadweep, Coastal Karnataka, South Interior Karnataka, Konkan Goa, Saurashtra and Kutch.

  • Wind warning: The wind speed was predicted to be at 70 kmph prevailing over East central and adjoining Southeast Arabian Sea & Lakshadweep area on 10th June 2019.

  • The speed of the Wind was further predicted to increase gradually from 65 - 75 kmph to 85 kmph over east central & adjoining southeast Arabian Sea on 11th June 2019.

  • Over Lakshadweep area, Kerala, Karnataka & south Maharashtra Coasts the speed of the wind was predicted to increase from 40 - 50 kmph to 60 kmph.

  • On 12th June 2019, Wind speed is very likely to increase from 90 - 100 kmph to 115 kmph over east central & adjoining northeast Arabian Sea.

  • Over South Gujarat and along the Maharashtra Coast the wind speed was likely to increase from 50 - 60 kmph to 70 kmph.

  • Over north Arabian Sea, the speed of the wind speed is likely to increase from110 - 120 kmph to 135 kmph over north Arabian Sea.

  • On 13th June 2019 along the Gujarat coast the wind speed was likely to increase from 65 - 75 kmph to 75 kmph. Over north Maharashtra Coasts & northern parts of east central Arabian Sea on 13th June 2019 the wind speed was likely to increase from 50 - 60 kmph to 70 kmph.

  • Sea related Warning: On 10th and 11th June 2019, the sea condition is very likely to be rough to very rough over Southeast and adjoining Lakshadweep area & east central Arabian Sea respectively.

  • The sea condition along & off Kerala & Karnataka Coasts on 10th June 2019 was very likely to be rough; Lakshadweep area, along & off Kerala, Karnataka & south Maharashtra Coasts on 11th; rough to very rough along & off south Gujarat and Maharashtra Coasts on 12th; very rough to high over along & off Gujarat, north Maharashtra Coasts & northern parts of east central Arabian Sea on 13th June, 2019.

  • Fishermen Warning: The fishermen were advised not to venture into Southeast Arabian Sea, Lakshadweep area, along & off Kerala and Karnataka on 10th & 11th June 2019.

  • East central Arabian Sea and along & off Maharashtra Coast on 11th & 12th June 2019.

  • Arabian Sea and along & off Gujarat coast on 12th & 13th June 2019.

- Published/Last Modified on: September 6, 2019

Environment/Ecology, Geography

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