Tag Archives: lakshadweep

OCKHI Cyclone Advisory Issued, Heavy Rainfall in Mumbai, Surat on Dec. 5, Helpline Opened

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Saturday’s OCKHI cyclone has hit Kerala and Lakshadweep islands while moving deep into the Arabian Sea on Monday before turing into the coastal regions of Western India on Monday and causing heavy rainfall in Mumbai and Surat regions.

An advisory issued by the Met Department on Sunday at 3 p.m. said the “Very Severe Cyclonic Storm Ockhi” was over Lakshadweep area and adjoining southeast Arabian Sea and moved northwestwards and lay centered over eastcentral and adjoining southeast Arabian Sea near Latitude 12.1º N and Longitude 69.0º E, about 420 km west-northwest of Amini Divi, 880 km south-southwest of Mumbai and 1090 km south-southwest of Surat.

“It is very likely to weaken gradually and move north-northwestwards for some time and then recurve northeastwards towards south Gujarat coast,” said the alert.

The forecast said rainfall is likely at many places with heavy rainfall at isolated places over south Gujarat on 5th December. Squally winds speed reaching 50-60 kmph gusting to 70 kmph very likely over and around north Lakshadweep Islands during next 12 hours and gradual decrease thereafter was expected.

For help, India Meteorological Department can be contacted on Phone: (91) 11-24652484, FAX: (91) 11-24643128, 24623220, E-mail:cwdhq2008@gmail.com, Website: rsmcnewdelhi.imd.gov.in

On Monday, Dec. 4 and Tuesday Dec. 5, squally wind speed reaching 45-55 kmph gusting to 65 kmph will be very likely along and off north Maharashtra and South Gujarat coasts and sea conditions would be very rough.

South Gujarat and north Maharashtra coasts: Fishermen are advised not to venture into the Sea along and off South Gujarat and north Maharashtra coasts from 4 th December for the subsequent 48 hours.

As Ockhi cyclon is very likely to move west-northwestwards towards north Tamil Nadu – south Andhra Pradesh coasts during next 3-4 days, sea condition over southwest Bay and adjoining central Bay of Bengal would be very rough from 5th December onwards. Hence, fishermen are advised not venture into deep sea off north Tamil Nadu and south Andhra Pradesh coast from 5th December 2017 onwards, said the alert.

Ockhi now ‘Very Severe Cyclonic Storm’; Lakshadweep, Minicoy Islands hit, Mumbai Next

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Upgraded as the very severe cyclonic storm, Ockhi  moved to Lakshadweep area and adjoining Southeast Arabian Sea further west-northwestwards with a speed of 10 kmph for the past six hours over Lakshadweep area and adjoining southeast Arabian Sea near Latitude 9.8º N and Longitude 71.0º E, about 280 km northwest of Minicoy and 240 km southwest of Amini Divi.

The system is very likely to weaken gradually from tonight. It is very likely to continue to move northwestwards during next 24 hours and then recurve northeastwards during the subsequent 48 hours, said a statement by the Met department. Mumbai will witness heavy rainfalls on December 5. Here is the detailed path:

Date/Time(IST) Position(Lat. 0N/ long. 0E) Maximum sustained surface wind speed (kmph) Category of cyclonic disturbance
    02/1130 9.8/71.0 140-150 GUSTING TO 165 VERY SEVERE CYCLONIC STORM
      02/1730 10.4/70.3 140-150 GUSTING TO 160 VERY SEVERE CYCLONIC STORM
      02/2330 11.1/69.8 135-145 GUSTING TO 160 VERY SEVERE CYCLONIC STORM
            03/0530          11.7/69.4 130-140 GUSTING TO 155 VERY SEVERE CYCLONIC STORM
03/1130 12.5/69.0 125-135 GUSTING TO 150 VERY SEVERE CYCLONIC STORM
03/2330 13.7/68.8 120-130 GUSTING TO 145 VERY SEVERE CYCLONIC STORM
04/1130 15.3/69.3 100-110 GUSTING TO 120 SEVERE CYCLONIC STORM
04/2330 16.9/70.1 80-90 GUSTING TO 100 CYCLONIC STORM
05/1130 18.3/70.9 60-70 GUSTING TO 80 CYCLONIC STORM
05/2330 20.6/72.1 50-60 GUSTING TO 70 DEEPDEPRESSION
06/1130 21.9/72.9 35-45 GUSTING TO 55 DEPRESSION

The Met Department has also issued a warning of heavy rainfall and rainfall in areas as below: 

Warning:

 

(i)           Heavy Rainfall warning:

  • Rainfall at most places with heavy to very heavy rainfall at a few places and isolated extremely heavy falls (>20 cm) very likely over north Lakshadweep Islands during next 24 hours and isolated heavy to very heavy falls during subsequent 24 hours. Isolated heavy to very rainfall is very likely over south Lakshadweep Islands during next 24 hours.
  • Rainfall at many places with heavy rainfall at isolated places very likely over Kerala during next 24 hours.

(ii)       Wind warning:

  • Gale winds speed reaching 100-110 kmph gusting to 120 kmph very likely over & around north Lakshadweep Islands during next 12 hours and gradual decrease thereafter and becoming 65-75 kmph gusting to 85 kmph by tomorrow, the 3rd December morning. Gale winds speed reaching 70-80 kmph gusting to 90 kmph very likely over and around south Lakshadweep Islands during next 12 hours and gradual decrease thereafter becoming 40-50 kmph gusting to 60 kmph by tomorrow, the 3rd December morning.
  • Squally wind speed reaching 45-55 kmph gusting to 65 kmph very likely along & off Kerala coast during next 24 hours and along & off Karnataka coasts during next 48 hours.

(ii)          Sea condition:

  • Sea conditions would be phenomenal over and around north Lakshadweep Islands during next 12 hours and gradually becoming high by tomorrow, the 3rd December morning. It is very likely to be high to very high over and around south Lakshadweep Islands during next 12 hours and gradually becoming rough to very rough by tomorrow, the 3rd December morning.
  • Sea conditions would be rough to very rough along & off Kerala coast during next 24 hours and along & off Karnataka coast during next 48 hours.

(iii)         Storm surge:

Storm surge of about 1 meter above astronomical tides very likely to inundate low lying areas of north Lakshadweep Islands during next 24 hrs and storm surge of about 0.5 metre above astronomical tides very likely to inundate low lying areas of south Lakshadweep Islands during next 12 hrs.

(iv)         Damage Expected over North Lakshadweep Islands during next 24 hours: Damage to power and communication lines due to breaking of tree branches and uprooting of large avenue trees. Major damage to thatched houses/huts: Major damage to kutcha houses, some damage to pucca roads and flooding of escape routes. Damage to banana & Papaya trees and standing crops.

Damage Expected over South Lakshadweep Islands during next 12 hours: Minor damage to power and communication lines due to breaking of tree branches. Major damage to thatched houses/huts.  Major damage to kutcha houses, minor damage to pucca roads. Some damage to banana & Papaya trees, orchards and standing crops.

(v)          Action suggested

  • Lakshadweep Islands: Fishermen around Lakshadweep Islands are advised not to venture into the sea during next 48 hours.
  • Kerala & Karnataka coast: Fishermen are advised not to venture into the sea along & off Kerala coast during next 24 hrs and along and off Karnataka coast during next 48 hrs.