Cyclone Arnab LIVE: Cyclone wreaks havoc in Odisha, over 55,000 evacuated across 9 districts

A cyclone is a large rotating storm that forms around a low-pressure centre, usually over warm tropical seas. It can bring powerful winds, intense rain, flooding and landslides. Cyclone Arnab mattered because its effects continued across coastal and inland areas even after the main storm passed.

In Andhra Pradesh, the storm damaged power infrastructure, uprooted trees and disrupted roads and public services. Odisha’s Ganjam, Gajapati and Kandhamal districts faced washed-away roads, flooded routes and landslides. The Howrah–Chennai rail route was also disrupted after the Bahuda river crossed danger levels.

Telangana was not identified as a main impact area in the article. Instead, its two power distribution utilities sent nearly 2,000 staff and emergency material to Andhra Pradesh. The response shows that cyclone impacts can spread across State borders through damaged transport and electricity networks.

The clearest evacuation figure in the article is 3,100 pregnant women shifted to hospitals before Cyclone Arnab reached Andhra Pradesh. They were moved as a precaution, especially women expected to deliver within two weeks and those with high-risk pregnancies. The operation aimed to protect mothers and babies from disrupted transport and medical access.

Health officials had identified 4,228 pregnant women in total. The women were sent to primary health centres, community health centres, area hospitals, district hospitals, government medical colleges and private hospitals. Of those shifted, 367 babies were born.

The article does not state how many people were evacuated overall, nor does it give the number of districts involved. Therefore, 3,100 is specifically the number of pregnant women moved to medical facilities, not a complete cyclone evacuation total. The figures show targeted emergency planning rather than a full population count.

Cyclone Arnab damaged several kinds of infrastructure and public services. Andhra Pradesh’s power-sector losses were estimated at ₹500 crore. Roads were washed away or blocked, railway services were cancelled or diverted, and fallen trees disrupted movement. The article does not provide a figure for damaged homes.

In Odisha, floodwaters washed away part of National Highway 326 and damaged roads in Gajapati. On the Howrah–Chennai route, 36 trains were cancelled and 30 diverted after the Bahuda river crossed danger levels. In GVMC areas, 1,192 trees were uprooted. Power repairs focused on badly hit places including Palakollu, Bhimavaram and Narsapur.

Public services also suffered. GVMC crews worked to restore roads and water supply while removing trees and debris. Electricity workers repaired damaged networks, and emergency teams supported restoration. The scale of damage meant that normal travel, power and municipal services returned through staged cleanup and repairs.

A cyclone can push huge amounts of rain over one area in a short time. Rivers, drains and soil may not absorb or carry the water quickly enough. Water then spreads across low-lying land and can flow over roads. This is why flooding can continue even when the strongest winds have weakened.

The article describes this pattern in Odisha. Heavy rain sent torrents downhill through hilly terrain into low-lying areas. Floodwaters washed away a stretch of National Highway 326, flowed over major roads and contributed to landslides. The Bahuda river also crossed the danger mark at two railway bridges in Ganjam district.

These effects are connected. Saturated hillsides become unstable, fast water erodes road foundations, and rising rivers threaten bridges and villages. The damage can isolate communities and stop trains and vehicles. Restoration therefore requires more than wind repairs; it also needs debris removal, road rebuilding and checks on bridges and slopes.

Governments used advance evacuation, emergency staffing and infrastructure repairs to reduce Arnab’s danger. Andhra Pradesh health officials identified vulnerable pregnant women and moved them before the cyclone. Power agencies then focused on restoring electricity, while municipal crews reopened roads and cleared public spaces.

The health department shifted 3,100 of 4,228 identified pregnant women to hospitals and other facilities. Andhra Pradesh deployed about 1,700 personnel, mobilised another 500 from its three distribution companies, and received 500 electricity employees from Telangana. Telangana also sent nearly 2,000 staff and emergency material after a request from Andhra Pradesh.

GVMC used 45 earthmovers, tipper vehicles and extra sanitation workers. It had cleared 902 uprooted trees and aimed to finish road clearance by Friday. Rail operators cancelled or diverted trains for safety. These actions show a layered response: protect vulnerable people first, then restore power, transport, water supply and roads.

A cyclone’s danger does not end when its winds weaken. Rain bands can continue dumping water, and rivers may rise after receiving runoff from distant hills. Floodwater can also undermine roads, bridges and buildings after the storm centre has moved away. Recovery conditions may therefore worsen later.

Arnab showed this delayed danger in Odisha. Heavy rain caused the Bahuda river to cross the danger mark at two railway bridges. In Ganjam, Gajapati and Kandhamal, roads were flooded or washed away. The article says hilly terrain sent torrents downhill into low-lying areas, triggering landslides and damaging infrastructure.

This creates a chain of risks. Isolated villages may lose road access, trains may be stopped, and rescue or repair crews may struggle to reach damaged sites. Power restoration can also take time when roads are blocked. The continuing response in Andhra Pradesh and Odisha reflected these lingering hazards, not just the storm’s initial impact.

The article focuses on Arnab’s damage and response, not on how cyclones form. In general, a tropical cyclone begins over very warm ocean water when moist air rises and lowers air pressure near the surface. Earth’s rotation helps the system develop a broad spinning circulation, while condensation releases heat that strengthens rising air.

As warm, moist air continues feeding the storm, thunderstorms can organise around the centre. The storm may intensify when ocean conditions remain favourable and wind patterns allow its circulation to stay organised. This process supplies the energy behind heavy rain and powerful winds.

A cyclone usually weakens after moving over land because it is cut off from the warm ocean surface that fuels it. Land also creates more friction and can disrupt the storm’s circulation. However, weakening does not mean immediate safety. Arnab’s continuing rain still caused floods, landslides, river rises and infrastructure damage after its main impact.