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| Cyclone Phyan | |
|---|---|
| Name | Phyan |
| Basin | Arabian Sea |
| Year | 2009 |
| Dates | November 2009 |
| 1-min winds | 35 |
| Pressure | 988 |
| Affected | India, Maharashtra, Goa, Diu, Dadra and Nagar Haveli, Kerala, Lakshadweep, Arabian Sea |
Cyclone Phyan was a weak but unusual tropical cyclone in the Arabian Sea in November 2009 that affected parts of India including Maharashtra, Goa, and the Dadra and Nagar Haveli and Diu archipelago. The system developed from a low-pressure area near the Lakshadweep islands and tracked northeastward, producing heavy rains, coastal inundation, and localized wind damage before dissipating. The storm interacted with the 2009 North Indian Ocean cyclone season circulation and influenced weather across the Konkan coast and the Western Ghats.
The disturbance originated as a low-pressure area near Lakshadweep in early November 2009, within the broader context of the 2009 North Indian Ocean cyclone season and an active monsoon trough influenced by the Madden–Julian Oscillation and the nearby Arabian Sea warm pool. The India Meteorological Department analyzed gradual organization while the system moved northeastward toward the Konkan coast and the Gulf of Khambhat. Concurrent analyses by the Joint Typhoon Warning Center and the Regional Specialized Meteorological Centre, New Delhi noted deep convection and a consolidating low-level circulation, with satellite imagery from Meteosat and INSAT showing banding features. Phyan reached peak intensity as a deep depression and was classified as a cyclonic storm by some agencies before weakening over cooler waters and under increasing vertical wind shear associated with an approaching mid-latitude trough and the subtropical westerlies. The storm made a close approach to the coast near Mumbai and later tracked inland, interacting with the Western Ghats terrain which disrupted its circulation and led to dissipation.
Authorities in Maharashtra and Goa issued advisories through the India Meteorological Department and state disaster management agencies, coordinating alerts with local administrations in Mumbai, Thane district, Ratnagiri district, and coastal towns such as Vasai-Virar and Alibag. The Indian Navy and Indian Air Force monitored coastal operations while municipal bodies in Mumbai and the Brihanmumbai Municipal Corporation readied drainage and rescue teams. Ports under the Directorate General of Shipping and fishing communities linked to organizations like the National Fisheries Development Board were cautioned; evacuations were considered in vulnerable talukas of Dadra and Nagar Haveli and island authorities in Diu. Airlines and the Airports Authority of India coordinated with airport operations at Chhatrapati Shivaji Maharaj International Airport for potential delays.
The cyclone produced heavy rainfall across the Konkan coast, impacting urban and rural districts including Mumbai, Raigad district, Ratnagiri district, and parts of Goa such as North Goa district and South Goa district. Coastal inundation occurred along the Arabian Sea shoreline with storm surge and elevated tide levels affecting fishing harbors like those in Malvan and Dapoli. The system exacerbated flooding in low-lying wards of Mumbai and disrupted rail services on lines controlled by Central Railway and Western Railway. In Goa, damage affected tourism infrastructure near Calangute and Baga Beach while agricultural sectors in the Konkan and Goa suffered losses to cashew and coconut plantations. Power outages impacted distribution networks managed by entities such as the Maharashtra State Electricity Distribution Company Limited and the Goa Electricity Department.
Reports indicated several fatalities and multiple injuries across Maharashtra and Goa due to flooding, collapsed structures, and electrocution; affected localities included urban neighborhoods in Mumbai and rural villages in Ratnagiri district. Transportation disruptions included halted services on the Konkan Railway and temporary closures at ports like Mormugao Port Trust and smaller harbors. Economic impacts were concentrated in fisheries communities tied to the National Fisheries Development Board and in tourism-dependent businesses in Goa; crop damage affected coconut and cashew producers connected to cooperatives such as the Goa State Cashew Development Corporation and marketing boards in Maharashtra. Damage assessments were coordinated by state revenue departments and district collectors who reported infrastructure losses to roads, embankments, and municipal assets.
State disaster response forces including the National Disaster Response Force and state-level disaster management authorities in Maharashtra and Goa conducted search, rescue, and relief distribution operations, often in coordination with the Indian Red Cross Society and local NGOs. Relief camps and medical assistance were organized by district administrations and municipal corporations, with supply chains supported by the Food Corporation of India and local civil supplies departments. Restoration of power involved crews from the Maharashtra State Electricity Distribution Company Limited and contractors engaged by state electricity departments, while debris clearance and road repair were undertaken by public works departments in affected districts like Raigad and Ratnagiri.
Meteorological analyses compared the system to other Arabian Sea cyclones such as Cyclone Phailin (though occurring in a different basin), and studies by research institutions including the Indian Institute of Tropical Meteorology and the National Institute of Oceanography (India) examined its genesis in relation to sea surface temperature anomalies and the Madden–Julian Oscillation. Post-event assessments by the India Meteorological Department and academic papers reviewed forecasting performance of agencies like the Joint Typhoon Warning Center and regional models run at the European Centre for Medium-Range Weather Forecasts and the National Centre for Medium Range Weather Forecasting. The event informed revisions to coastal warning protocols used by the Ministry of Earth Sciences (India) and highlighted vulnerabilities in urban drainage planning in megacities such as Mumbai and coastal resilience initiatives in Goa.
Category:2009 North Indian Ocean cyclone season Category:Tropical cyclones in India