When the first satellite images of Cyclone Arnab appeared, meteorologists noted a swirl of clouds gathering over the warm waters of the Bay of Bengal. In the tropics, such disturbances can quickly gather strength, feeding on the ocean’s heat and moisture. Within days, Arnab transitioned from a modest low‑pressure area into what Indian meteorological terminology calls a very severe cyclonic storm. That label signals sustained winds that can exceed 120 km/h – a threshold crossed when Arnab’s maximum sustained winds were measured at 125 km/h, with gusts peaking at 140 km/h. For a region accustomed to monsoon rains, those numbers translate into a force capable of uprooting trees, tearing roofs and driving rain inland at a ferocious pace.
The science behind a cyclonic storm’s intensification is straightforward yet unforgiving. Warm sea surface temperatures provide the energy, while low vertical wind shear allows the storm’s core to stay organized. As Arnab spun faster, its pressure fell, drawing in more air that rose, condensed, and released latent heat – a feedback loop that can turn a tropical disturbance into a land‑falling tempest in a matter of hours. By the time forecasters issued their first public warnings, the system was already on a trajectory that would take it straight toward the eastern coast of India.
All eyes turned to the projected track that would see Arnab cross the coast of Andhra Pradesh on October 28. The Indian Ocean’s geography funnels many storms toward this stretch of shoreline, and this time the storm’s forward speed was expected to be moderate, giving communities a narrow window to brace for impact. The forecast called for the storm’s eye – the relatively calm center of a cyclonic system – to make landfall just after midnight, a timing that would place the most intense winds and heaviest rains squarely over populated coastal districts.
In Odisha, the onshore flow of moist air will combine with the storm’s circulation to produce intense downpours along the coastline and further inland.
Why the focus on Andhra Pradesh? The region sits at the low‑lying edge of the Bay, where storm surges can quickly inundate settlements. The combination of a 125 km/h sustained wind field and gusts that can reach 140 km/h means that structures not built to cyclone standards are at high risk. Moreover, the heavy rainfall that accompanies such storms can trigger flash floods in river basins that drain the interior, compounding the danger for those living inland but still within the storm’s reach.
At least 89,000 people living along the six coastal belts are being evacuated to 101 relief camps in the wake of Cyclone Arnab, expected to cross the coast near Yanam or Andhra Pradesh’s Kakinada as a “very severe” cyclonic storm on Wednesday (October 28). ✍️ @naiduthehindu https://t.co/EmMrrIRu5L
While the eye of Arnab was set to strike Andhra Pradesh, the storm’s outer bands were already stretching far to the north, bringing ominous forecasts for West Bengal and Odisha. Meteorologists warned that these states could see prolonged periods of heavy rain, a hallmark of cyclonic systems that can dump several centimeters of water in a single day. In West Bengal, the rain is expected to exacerbate already saturated soils, raising the risk of landslides in hilly districts. In Odisha, the onshore flow of moist air will combine with the storm’s circulation to produce intense downpours along the coastline and further inland.
Heavy rainfall in these regions does more than soak the ground; it can overwhelm drainage networks, cause riverbanks to breach, and create conditions ripe for water‑borne disease outbreaks in the aftermath. The forecast therefore prompted the Odisha government to issue precautionary advisories, urging residents to secure property, stock essential supplies and stay tuned to local alerts.
The most striking figure in the response plan is the identification of 5.7 lakh (570,000) vulnerable people in Andhra Pradesh slated for evacuation. This number reflects a pre‑emptive approach: authorities mapped out low‑lying villages, informal settlements and coastal hamlets that lack robust shelter options. By earmarking these residents ahead of time, the state hopes to move them to safer locations before the storm’s winds and rain arrive.
Evacuation on this scale is a logistical challenge. It involves coordinating transport, setting up temporary shelters, ensuring the availability of food, water and medical care, and maintaining clear communication channels. The Odisha government, meanwhile, has rolled out precautionary measures that include pre‑positioning relief kits, activating disaster response teams and conducting drills with local officials. These steps are designed to reduce the time between the storm’s arrival and the delivery of aid, a critical factor that can mean the difference between life and death in the chaotic hours following a cyclone.
The emphasis on preparation underscores a broader shift in how Indian states handle cyclonic threats. Rather than reacting after the fact, officials are now leveraging satellite data, real‑time wind measurements and ground reports to anticipate needs and mobilize resources. The identification of 5.7 lakh evacuees is a concrete example of data‑driven disaster management in action.
🌧️IMD Weather Warning ⚠️ Under the influence of the impending Cyclonic Storm “Arnab,” isolated extremely heavy rainfall is likely over Coastal Andhra Pradesh & Yanam on 27th–28th October, Odisha on 28th October, Chhattisgarh on 28th–29th October, and East Uttar Pradesh on 29th October, 2026. Heavy to very heavy rainfall is also likely at isolated places over Odisha, Vidarbha, Telangana, East Madhya Pradesh, East Uttar Pradesh, Jharkhand and Bihar during 27th–30th October, 2026. Stay alert and follow official weather updates. #CyclonicStormArnab #WeatherAlert #HeavyRainfall #IMD #WeatherUpdate #RainfallWarning @moesgoi @airnewsalerts @DDNational @ndmaindia @ICRER_MHA
For those living along the Andhra Pradesh coast, the night of October 28 will likely be marked by a sudden surge of wind and rain. Sustained winds of 125 km/h can snap power lines, bring down trees and make travel impossible, while heavy rainfall will threaten flooding and landslides in nearby areas.