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Timeline of the 2007 North Indian Ocean cyclone season: Wikis

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IMD Tropical Cyclone
Strength Classification
[1]
Category Wind speed (3-min)
Knots (km/h)

Depression ≤27
(≤51)
Deep Depression 28–33
(52–61)
Cyclonic Storm 34–47
(62–87)
Severe Cyclonic
Storm
48–63
(88–117)
Very Severe
Cyclonic Storm
64–119
(118–221)
Super Cyclonic Storm ≥120
(≥222)

Below is a timeline of the 2007 North Indian Ocean cyclone season, documenting major events with regards to tropical cyclone formation, strengthening, weakening, landfall, extratropical transition, as well as dissipation. The 2007 North Indian Ocean cyclone season was an ongoing event in the annual cycle of tropical cyclone formation.

For convenience and clarity, in the timeline below, all landfalls are bolded. Where the exact time of an event is unclear, c. is used to denote the approximate time.

The India Meteorological Department (IMD) is the official Regional Specialized Meteorological Centre in this basin, while the Joint Typhoon Warning Center releases unofficial advisories.

Storms tracked by the JTWC are referred to numerically to avoid confusion, as the JTWC sometimes recognises a storm at a different intensity compared to the IMD.

The graphical bar above gives a brief overview of storm activity during the season, and a storm's maximum intensity category in terms of wind speed is included as a colour bar. This is given by the IMD's values of maximum 10-minute sustained winds. The colour scheme is detailed to the right.

Contents: (top)JanFebMarAprMayJunJulAugSeptOctNovDec

Timeline of storms

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May

May 3
  • 1200 UTC – The IMD designates an area of low pressure as Depression BOB 01 while at peak intensity of 30 mph (50 km/h).[2]
May 5
  • 0000 UTC – Depression BOB 01 makes landfall in Rakhine, Myammar with winds of 30 mph (50 km/h) and dissipates.[2]
May 13
  • 0300 UTC – The IMD designates and area of low pressure as Depression BOB 02.[2]
  • 1800 UTC – The JTWC designates Depression BOB 02 as Tropical Storm 01B.[3]
  • 2100 UTC – Depression BOB 02 (01B) strengthens into a deep depression.[2]
May 14
  • 0300 UTC – Deep Depression BOB 02 (01B) strengthens into a cyclonic storm and is named Akash.[2]
  • 0600 UTC – Cyclonic Storm Akash (01B) reaches its peak intensity of 50 mph (80 km/h).[2]
  • 1800 UTC – Tropical Storm 01B (Akash) strengthens into a category 1 tropical cyclone and reaches its peak intensity of 75 mph (120 km/h).[3]
  • between 2200 and 2300 UTC Cyclonic Storm Akash (01B) makes landfall south of Cox's Bazar, Bangladesh with winds of 50 mph (80 km/h), weakens into a depression, and dissipates.[2]
May 15
  • 0000 UTC – Tropical Cyclone 01B (Akash) weakens into a tropical storm and dissipates.[3]

June

June 1
  • 0300 UTC - 92A.INVEST, southwest of Mumbai, India, is designated Tropical Cyclone 2A by the JTWC.[4]
  • 1200 UTC - Tropical Cyclone 2A is designated Depression ARB 01/2007 by the IMD.[5]
June 2
  • 0300 UTC - Depression ARB 01/2007 is upgraded to Deep Depression ARB 01/2007.[6]
  • 0900 UTC - Deep Depression ARB 01/2007 is upgraded to Cyclonic Storm Gonu.[7]
June 3
  • 0000 UTC - Cyclonic Storm Gonu is upgraded to Severe Cyclonic Storm Gonu.[8]
  • 1800 UTC - Severe Cyclonic Storm Gonu is upgraded to Very Severe Cyclonic Storm Gonu.[9]
June 4
  • 1500 UTC - Very Severe Cyclonic Storm Gonu is upgraded to Super Cyclonic Storm Gonu.[10]
  • 2100 UTC - Super Cyclonic Storm Gonu is downgraded to a Very Severe Cyclonic Storm.[11]
June 5
  • 2100 UTC - Very Severe Cyclonic Storm Gonu makes landfall on the northeastern tip of Oman.[12]
June 7
  • 0000 UTC - Very Severe Cyclonic Storm Gonu is downgraded to a Severe Cyclonic Storm.[13]
  • 0200 UTC - Severe Cyclonic Storm Gonu is downgraded to a Cyclonic Storm.[14]
  • c. 0400 UTC - Cyclonic Storm Gonu makes landfall in southeastern Iran, and the IMD issues its final bulletin.[15]
  • 0900 UTC - The JTWC issues its final advisory on Tropical Cyclone 03B, dissipating in the Deccan Plateau in India.[16]
June 21
  • 0300 UTC - 95B.INVEST, east-southeast of Kakinada, Andhra Pradesh, India, is designated Depression BOB 03/2007 by the IMD.[17]
  • 1200 UTC - Depression BOB 03/2007 is upgraded to Deep Depression BOB 03/2007.[18]
  • 1500 UTC - Deep Depression BOB 03/2007 is designated Tropical Cyclone 03B by the JTWC.[19]
  • c. 2300 UTC - Deep Depression BOB 03/2007 makes landfall near Kakinada, Andhra Pradesh, India.[20]
June 22
  • 0900 UTC - The JTWC issues its final advisory on Tropical Cyclone 03B, dissipating in the Deccan Plateau in India.[21]
June 23
  • 0300 UTC - Deep Depression BOB 03/2007 is downgraded to a depression.[22]
June 24
  • 0300 UTC - The IMD issues its final bulletin on Depression BOB 03/2007.[23]
June 25
  • 0300 UTC - The IMD resumes advisories on Depression BOB 03/2007.[24]
  • 0900 UTC - The JTWC resumes advisories on Tropical Cyclone 03B, south of Karachi, Pakistan.[25]
  • 1200 UTC - Depression BOB 03/2007 is upgraded to Deep Depression BOB 03/2007.[26]
  • 1300 UTC - The PMD upgrades Deep Depression BOB 03/2007 to a severe cyclonic storm, naming it "Yemyin". However, the IMD does not follow suit at this time, leaving this storm operationally unnamed. It would be retroactively named Yemyin in post-analysis.[27]
June 26
  • c. 0300 UTC - Deep Depression BOB 03/2007 makes landfall near Ormara and Pasni, in Balochistan province, Pakistan, and its final bulletin was issued.[28]
  • 2100 UTC - The JTWC issues its final advisory on Tropical Cyclone 03B, dissipating in inland Pakistan.[29]
June 28
  • 0000 UTC - 96B.INVEST, southeast of Puri, Orissa, India, is designated as Depression BOB 04/2007 by the IMD.[30]
  • 0300 UTC - Depression BOB 04/2007 is upgraded to Deep Depression BOB 04/2007.[30]
  • 1500 UTC - Deep Depression BOB 04/2007 is designated Tropical Cyclone 04B by the JTWC.[31]
June 29
  • c. 0100 UTC - Deep Depression BOB 04/2007 makes landfall near Puri, Orissa, India.[32]
  • 1500 UTC - The JTWC issues its final advisory on Tropical Cyclone 04B, dissipating in inland Orissa, India.[33]
June 30
  • 0300 UTC - Deep Depression BOB 04/2007 is downgraded to a depression.[34]
  • 0900 UTC - The IMD issues its final bulletin on Depression BOB 04/2007, dissipating in Madhya Pradesh, India.[35]

July

July 4
July 5
  • 1200 UTC - Depression BOB 05/2007 is upgraded to Deep Depression BOB 05/2007.[37]
July 7
  • 0300 UTC - Deep Depression BOB 05/2007 is downgraded to a depression.[38]
July 8
  • 1200 UTC - The IMD issues its final bulletin on Depression BOB 05/2007, dissipating in central Madhya Pradesh, India.[39]
July 9
  • 0300 UTC - The IMD resumes advisories on Depression BOB 05/2007, near Shivpuri, Madhya Pradesh.[40]
  • 1200 UTC - The IMD issues its final bulletin on Depression BOB 05/2007, dissipating in northwestern Madhya Pradesh and eastern Rajasthan, India.[41]

August

August 5
  • 0000 UTC - Depression BOB 06/2007 forms 230 km southeast of Balasore.[42]
  • 1800 UTC - The IMD upgrades Depression BOB 06/2007 to Deep Depression BOB 06/2007.[43]
August 6
  • c. 0200 UTC - Deep Depression BOB 06/2007 makes landfall north of Paradip.[44]
August 7
  • 0300 UTC - Deep Depression BOB 06/2007 is downgraded to a depression.[45]
  • 1200 UTC - The IMD issues its last bulletin on Depression BOB 06/2007.[46]

September

September 21
  • 1200 UTC - Depression BOB 07/2007 forms about 230 km south-southeast of Puri, India.[47]
September 22
  • 1300 UTC - Depression BOB 07/2007 makes landfall at the Orissa coastline near Puri.[48]
September 24
  • 1200 UTC - The IMD issues its last bulletin on Depression BOB 07/2007.[49]

October

October 27
  • 1800 UTC - Depression BOB 08/2007 forms about 600 km east-southeast of Chennai, India.[50]
  • 1800 UTC - Depression ARB 02/2007 forms over the south-eastern Arabian Sea.[51]
October 28
  • 0300 UTC - The JTWC designates Depression ARB 02/2007 as Tropical Cylone 05A.[52]
  • 0300 UTC - The IMD upgrades Depression ARB-02/2007 to Deep Depression ARB-02/2007.[53]
October 29
  • 0300 UTC - Depression BOB 08/2007 degenerates into a low pressure area and advisories are discontinued.[54]

November

November 2
  • 0300 UTC - Deep Depression ARB 02/2007 weakens into a depression.[55]
  • 1200 UTC - Depression ARB 02/2007 degenerates into a low pressure area.[56]
November 11
  • 0900 UTC - The IMD designates an area of disturbed weather 200 km south-southwest of Port Blair as Depression BOB 09/2007.[57]
  • 0900 UTC - The JTWC designates Depression BOB 09/2007 as Tropical Cyclone 06B.[58]
  • 1800 UTC - The IMD upgrades Depression BOB 09/2007 to Deep Depression BOB 09/2007.[59]
November 12
  • 0300 UTC - The IMD upgrades Deep Depression 09/2007 to Cyclonic Storm Sidr.[60][61]
  • 1500 UTC - The IMD upgrades Cyclonic Storm Sidr to Severe Cyclonic Storm Sidr.[62]
  • 1800 UTC - The IMD upgrades Severe Cyclonic Storm Sidr to Very Severe Cyclonic Storm Sidr.[63]
November 15
  • 1630 UTC - Very Severe Cyclonic Storm Sidr makes landfall over West Bengal and Orissa, India coast with winds of near 115-125 knots (3 minute).[64][65]
  • 2100 UTC - The IMD downgrades Very Severe Cyclonic Storm Sidr to Cyclonic Storm Sidr.[66]
November 16
  • 0300 UTC - The JTWC issues its final advisory on dissipating Tropical Cyclone 06B (Sidr).[67]
  • 0300 UTC - The IMD downgrades Cyclonic Storm Sidr to a depression and issues its final bulletin.[68]

References

  1. ^ http://www.imd.gov.in/services/cyclone/impact.htm
  2. ^ a b c d e f g "India Meteorology Department Best Track for Tropical Cyclones 1990-2008". India Meteorology Department. http://www.imd.gov.in/section/nhac/dynamic/bestrack.htm. Retrieved 2009-07-16.  
  3. ^ a b c "JTWC Best Track for Tropical Cyclone 01B (Akash)". Joint Typhoon Warning Center. http://www.usno.navy.mil/NOOC/nmfc-ph/RSS/jtwc/best_tracks/2007/2007s-bio/bio012007.txt. Retrieved 2009-07-20.  
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See also

Preceded by
2006
North Indian Ocean cyclone
season timelines

2007
Succeeded by
2008

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