A developing low-pressure system over the Bay of Bengal could intensify into a deep depression and eventually a cyclonic storm, raising concerns about potentially severe weather along India’s eastern coastline. Forecasts suggest that the system, which the original report identifies as a possible cyclone named ‘Arnab’, may approach Andhra Pradesh or Odisha towards the end of October.
Although India is expected to face the greatest potential impact, coastal areas of Bangladesh could also experience rainfall, gusty winds and rough sea conditions if the system strengthens.
According to the India Meteorological Department (IMD), a low-pressure area originating near Thailand’s coast has moved into the Andaman Sea. The disturbance could develop into a depression between Friday, 23 October, and Saturday, 24 October.
Meteorological projections indicate that the system may travel westwards and north-westwards across the Andaman Sea before entering the southeastern and east-central Bay of Bengal. Atmospheric conditions could then support further intensification, potentially transforming the depression into a cyclonic storm.
Forecast Models Differ on Possible Landfall
Weather forecasting models have presented different scenarios regarding the storm’s development, movement and eventual landfall.
The United States-based Global Forecast System (GFS) suggests that the disturbance could develop into a depression around 23 October before strengthening as it moves north-westwards.
According to the projections cited in the original report, the system could intensify into a cyclonic storm by 25 October and subsequently approach India’s Odisha coastline.
The GFS scenario indicates that the storm could make landfall near Bhubaneswar, the capital of Odisha, during the night of 27 October.
However, projections displayed by the weather forecasting platform Windy suggest a somewhat different trajectory. Its forecast indicates that the developing storm could reach the Andhra Pradesh coast during the night of 27 October.
The European Centre for Medium-Range Weather Forecasts (ECMWF) has also projected the possibility of cyclone formation, although its estimated timeline differs from the American model.
According to the European forecast described in the report, a depression could form over the Bay of Bengal on 24 October and intensify into a cyclonic storm by 26 October.
The system could then continue towards India’s eastern coastline, potentially making landfall near Kakinada in Andhra Pradesh around midday on 28 October.
The differences between these projections underline the uncertainty surrounding the developing weather system.
Forecast models assess atmospheric pressure, wind circulation, sea surface temperatures and other meteorological conditions. Changes in these factors can influence both the strength and direction of a tropical cyclone.
As a result, the precise location and timing of any potential landfall remain uncertain.
Bangladesh Could Experience Indirect Effects
Although the available projections indicate that the storm may primarily affect India’s eastern coastline, Bangladesh could experience indirect consequences.
Coastal areas may face periods of rainfall and gusty winds, while conditions over the Bay of Bengal could become increasingly unsettled if the disturbance intensifies.
The severity of any impact on Bangladesh would depend on the cyclone’s eventual strength, movement and distance from the country’s coastline.
A powerful storm moving towards India does not necessarily mean Bangladesh will experience severe conditions. However, changes in the storm’s path could alter the extent of its influence.
Fishing communities and operators of vessels travelling through the Bay of Bengal may need to pay particular attention to updated maritime forecasts.
Official bulletins from the Bangladesh Meteorological Department will be essential in determining whether any warning signals or precautionary measures become necessary.
The information contained in the original report does not establish whether specific maritime warning signals have already been issued.
How Cyclones Are Named
Tropical cyclones forming over the North Indian Ocean, including the Bay of Bengal and the Arabian Sea, are named according to a predetermined list submitted by 13 participating countries.
These countries are Bangladesh, India, Maldives, Myanmar, Oman, Pakistan, Sri Lanka, Thailand, Qatar, the United Arab Emirates, Saudi Arabia, Yemen and Iran.
The naming system follows an established sequence, with participating countries contributing names for future cyclonic storms.
When a developing weather disturbance reaches the intensity required to be classified as a cyclonic storm, the appropriate name is assigned through the regional meteorological naming process.
The original report identifies ‘Arnab’ as the proposed name for the potential cyclone. Contributed by Bangladesh, the Bengali word means ‘sea’ or ‘ocean’.
However, an official cyclone name is assigned only when the relevant meteorological criteria are met, and the proposed name must correspond to the approved naming sequence.
Weather Conditions Remain Under Observation
The Bay of Bengal is particularly susceptible to tropical cyclone development because warm ocean waters can provide the energy required for storms to form and intensify.
Atmospheric moisture, wind patterns and differences in air pressure also influence how quickly a low-pressure system strengthens.
When conditions are favourable, a disturbance can develop from a low-pressure area into a depression, deepen further and eventually reach cyclonic storm intensity.
Its subsequent movement depends on surrounding atmospheric circulation, which can change as the system develops.
For this reason, early forecasts often differ over the precise timing and location of landfall.
The projections cited in the report suggest that the period between 25 and 28 October could be particularly significant for the developing system, although these dates remain forecast estimates rather than confirmed outcomes.
Residents of potentially affected coastal regions in India and Bangladesh are advised to follow official meteorological updates as the situation evolves.
A clearer assessment of the storm’s strength, track and possible coastal impact will depend on subsequent observations and updated forecasts from the relevant weather authorities.
