Cyclone Arnab alert: IMD forecasts landfall in Andhra Pradesh on Oct 28

The developing system is expected to make landfall on October 28 along the north Andhra Pradesh coast. The projected stretch lies between Bapatla and Visakhapatnam. This matters because the storm could bring damaging winds and intense rain to populated coastal districts.

The India Meteorological Department’s latest track forecast places the crossing in Andhra Pradesh, rather than Odisha. Before landfall, the system is expected to recurve northwestwards over the west-central Bay of Bengal and become Cyclone Arnab if it reaches cyclonic-storm strength.

The forecast is not a final observation. The storm was still a depression on Sunday morning, and its exact track could change as it strengthens. Northern Andhra Pradesh and southern Odisha remain on high alert, with very heavy rain forecast through October 29 and schools closed in five southern Odisha districts on October 28 and 29.

A tropical cyclone is an organized low-pressure storm that forms over warm tropical waters and produces strong winds, heavy rain, and rotating air. It matters because these systems can intensify quickly and affect wide coastal areas. The source describes this system developing over the Bay of Bengal.

A depression is an early, weaker stage of the same weather system. The article states that the storm was still a depression on Sunday morning and was likely to intensify into a deep depression. It then forecast further strengthening into a cyclonic storm by October 27.

The article does not provide the formal wind-speed thresholds separating these stages. In general meteorological practice, stronger sustained winds define stronger categories. If this system reaches cyclonic-storm strength, it will officially be named Cyclone Arnab, a name proposed by Bangladesh.

The forecast storm is powerful enough to threaten coastal communities with destructive winds and flooding rain. The IMD expects sustained winds of 115 km/h to 125 km/h at landfall, with gusts reaching 140 km/h. These figures indicate a severe system, not merely a rain-bearing depression.

The likely rain zone is broad. The Andaman Islands have heavy to very heavy rainfall warnings through October 27. Northern Andhra Pradesh and southern Odisha are forecast to receive very heavy rain through October 29. Five southern Odisha districts also face predicted winds of 80–90 km/h.

The storm’s effects will extend beyond its exact landfall point. Rainfall may begin in several coastal Odisha districts from October 27, while the Andaman Islands are already under warning. Forecasts can change as the depression moves and intensifies, so officials are monitoring the system closely.

In Andhra Pradesh, the storm could bring very heavy rain and winds of 115–125 km/h, with stronger gusts. Coastal districts face the greatest concern because the system is forecast to cross between Bapatla and Visakhapatnam. Heavy rain could disrupt travel, damage property, and create flooding risks, although the article does not give damage forecasts.

In Odisha, Ganjam, Gajapati, Rayagada, Koraput, and Malkangiri are expected to receive heavy to very heavy rain and winds of 80–90 km/h. Schools, colleges, and Anganwadi centres in these districts will close on October 28 and 29. Several coastal districts may receive rain from October 27.

The Andaman Islands have heavy to very heavy rainfall warnings through October 27. Odisha’s chief minister ordered preparedness aimed at zero casualties. Officials are responding before landfall because the storm’s track and intensity may still develop.

Cyclone forecasting means estimating where a storm will move and how strong it will become. The article shows the IMD doing both: it issued a track forecast, identified the system’s current distance from major places, and predicted wind speeds at landfall. These forecasts matter because communities need time to prepare.

The IMD reported that the system was 470 kilometres north-northwest of Sri Vijay Puram, 860 kilometres east-southeast of Visakhapatnam, and 950 kilometres east-southeast of Kakinada. It expected the system to move nearly southwards, intensify into a deep depression, then recurve northwestwards and become a cyclonic storm by October 27.

The article does not describe the IMD’s technical forecasting tools. Established cyclone forecasting uses observations, satellite data, weather stations, ocean information, and computer models, then meteorologists assess the results. Forecasts are updated as new observations arrive, so the track and intensity can change.

El Niño is characterized in the article by abnormal warming along the equatorial Pacific Ocean. The article says cyclone formation in this case aligns with conditions typical of an El Niño year. This matters because large ocean and atmosphere patterns can shift where tropical cyclones develop and where they travel.

According to the article, El Niño years typically cause Northern Hemisphere tropical cyclones to form at lower latitudes. They also tend to track predominantly toward the Andhra Pradesh and Tamil Nadu coasts. The developing storm’s projected path toward the Andhra Pradesh coast fits that broader climatological pattern.

The source does not explain the physical mechanism in detail. In established climate science, El Niño changes tropical circulation, wind patterns, pressure fields, and ocean temperatures. Those changes can alter cyclone-favorable zones and steering winds. This is a seasonal tendency, not a guarantee for every individual storm.

Warm ocean water helps tropical cyclones form because evaporation adds moisture and heat to the air above the sea. As moist air rises and condenses, it releases heat. That released energy can fuel stronger thunderstorms and a more organized rotating storm. This is why tropical cyclones commonly develop over warm tropical oceans.

Lower atmospheric pressure supports the process by drawing air inward near the surface. Rising air and thunderstorms can deepen the central low-pressure area. Stronger pressure differences then increase winds around the system. In the article, the depression was expected to intensify into a deep depression and then a cyclonic storm.

The article identifies the Bay of Bengal system’s stages but does not explain this mechanism. Actual strengthening also depends on factors such as upper-level winds and moisture. The forecast shows that conditions were expected to support intensification by October 27, before possible landfall on October 28.