Yaas crossed the northern Odisha coast around 20 km south of Balasore at its peak intensity as a very severe cyclonic storm on May 26.
[3] Railway operations and marine activities were halted due to Yaas, while rescue authorities and medical teams were deployed in for possible emergencies.
[10] At that time, the low-level circulation center of the system became partially-exposed due to moderate wind shear; however, large masses of rainbands persisted in the southern portion of the storm as it remained in a marginally favorable environment for intensification, with warm sea surface temperatures and good outflow but moderate wind shear.
[13] A subtropical ridge turned the system northeast into an area of low wind shear, causing Yaas to gradually strengthen.
[14] Despite Yaas being negatively affected after making landfall, combined with the weakening effects of moderate wind shear and poor outflow, it intensified further to a very severe cyclonic storm at 15:00 UTC on May 25 as it featured a profound convection.
[22] Rescue and relief teams of the Indian army, navy, and the coast guard have also deployed over the coastal districts of Odisha and West Bengal.
[23] CESC stayed on guard for the cyclone to ensure uninterrupted service especially for major hospitals and critical establishments like drainage pumping stations.
[28] The IMD issued an orange alert on May 25 on Mayurbhanj, Jajpur, Cuttack, Khordha, and Puri in Odisha, citing the threat of Yaas' rainfall.
[29] Ministry of Home Affairs Amit Shah instructed the authorities in West Bengal, Odisha, and Andhra Pradesh in a virtual meeting to prepare electricity supplies at hospitals and vaccine centers for possible power outages.
[31][32] All 265 boats which were reported to be in the Bay of Bengal on that day returned to the port as the Indian Coast Guard instructed them to do so due to the brewing storm.
[3][34] Meanwhile, as Yaas weakens over Jharkhand, evacuations were ordered due to the threat of strong winds and heavy rainfall from the system.
[35] Assessing the threat of Yaas in the country, Bangladesh Prime Minister Sheikh Hasina reserved 225 disaster centres for evacuation premises.
[37] Food supplies were also prepared for the evacuees, while Bangladeshi authorities including the Cyclone Preparedness Programme of the country and its navy were on standby and high alert, starting from May 24.
[38][34] The meteorology department of Sri Lanka issued a red alert on May 24 for the possibility of heavy rains and strong winds from Yaas for the country's Western, Central, Sabaragamuwa and Southern provinces.
[44][45] Knee-deep floods caused by torrential rainfall submerged the beach areas of Digha, while palm trees were snapped by the cyclone's strong winds.
[50] Two farmers from Pandua were struck by lightning while on their fields, killing them both, while a senior citizen of Asansol died as her house collapsed on top of her.
[53] In the city of Ashoknagar Kalyangarh in North 24 Parganas district, a small tornado touched down in the area on May 27, destroying many houses and private properties.
[58] Continued heavy rains from Yaas caused the Baitarani River to nearly overflow, but it didn't as the conditions in Odisha improved.
[64] The rainfall from Yaas also extended to Uttar Pradesh, where many areas in the state reported light downpours including Ballia, Mau, Deoria, Ghazipur, Azamgarh, Varanasi, Chandoli, Mirzapur, Sonbhadra, Gorakhpur, Kushinagar, Ambedkarnagar, Sultanpur, Jaunpur, Allahabad, Maharajganj, Naugarh, Basti and Ayodhya and the districts of Bhadohi and Sant Kabir Nagar.
[66] Tidal waves generated by Yaas flooded low-lying areas in Khulna, Satkhira, Patuakhali, Barguna, Jhalokathi, and Noakhali, including some fishing settlements in Sundarbans on May 26.
[67] The coastal areas of Cox's Bazar saw inundation in multiple villages due to Cyclone Yaas, while tidal surges severely damaged a jetty and at least 50 houses at St. Martin's Island.
[71] The Sundarbans were inundated with saline seawater after Yaas had moved inland, raising fears of potential damage the forest ecosystem.
[73] According to naval sources at Patenga in Chittagong, a ship, called MV Sanvalli, sank near Bhasanchar in the Bay of Bengal and 12 sailors were rescued by Bangladesh Air Force helicopters.
[75] Some climbers and hikers at Mount Everest and Lhotse in the country were stranded in high summits, while several more were forced to go down due to imminent weather from the interaction of the system's remnants and a prevailing western disturbance.
[78] Those displaced by Yaas had sought refuge in overcrowded shelters; this caused increased concern about COVID-19 outbreaks in an already terrible pandemic in India.
It is currently in discussion after Chief Minister Mamata Banerjee has expressed her disappointment in several meetings for ineffective repair of the embankments and told the officials for finding a permanent solution.