Meteorological history | |
---|---|
Formed | 13 September 2024 |
Dissipated | 18 September 2024 |
Deep depression | |
3-minute sustained (IMD) | |
Highest winds | 55 km/h (35 mph) |
Lowest pressure | 989 hPa (mbar);29.21 inHg |
Overall effects | |
Fatalities | 50 |
Missing | ≤350 |
Areas affected | Bangladesh,India |
Part of the 2024 North Indian Ocean cyclone season |
Deep Depression BOB 05 was a weak tropical cyclone that impacted Bangladesh and India. The seventh depression and fourth deep depression of the 2024 North Indian Ocean cyclone season,BOB 05 originated from a broad area of cyclonic circulation partially related to the remnants of Typhoon Yagi in the Western Pacific. Moving generally northwestward,the depression failed to intensify further,reaching maximum sustained winds of 55 km/h (35 mph) and a central pressure of 989 hPa (29.21 inHg). It would weaken,becoming a remnant low on 18 September.
Heavy rainfall from the storm led to severe flooding in southeastern Bangladesh,affecting over 50,000 people across 40 villages in Ukhia Upazila,with Haldia Palong and Jaliapalong areas being the most impacted,totaling 35,000 residents. Additionally,Chakaria Upazila experienced flooding that disrupted 20,000 residents and caused significant damage to agricultural land. Meanwhile,in Kolkata,72.4 mm (2.85 in) of rain was recorded over a 24-hour period,with a total of 125.8 mm (4.95 in).
The weak remnants of Typhoon Yagi would begin tracking towards the North Indian Ocean, [1] causing the India Meteorological Department (IMD) to start tracking it as a cyclonic circulation over Myanmar on 11 September. [2] [3] This disturbance coalesced into a low-pressure area the next day, [4] further developing into a well-marked low-pressure just a few hours later. [5] Soon after, it intensified into a depression. [6] The following day, the depression further strengthened into a deep depression over Bangladesh and West Bengal. [7]
As it was located in the westerlies of the southwest monsoon, on September 16, BOB 05 exhibited persistent deep convection driven by mid-level anticyclonic shear. [8] A few hours later, the system weakened to a depression as it drifted slowly westward over western India. [9] The depression subsequently lost organization, degenerating into a well-marked low pressure area over Madhya Pradesh by 00:00 UTC on September 18. [10]
The storm produced heavy rainfall in southeastern Bangladesh. [11] Seven people were killed by landslides in Cox's Bazar District. [12] Rainfall flooded some 200 villages in Cox's Bazar Sadar. Six other upazilas remained flooded. In Ukhia Upazila, flooding affected over 50,000 people across 40 villages. Among them were the Haldia Palong and Jaliapalong areas constituting the most affected population of 35,000. Some 10,000 residents across eight neighbourhoods including Nuniarchara, which are flood-prone, were also affected. Flooding in Chakaria Upazila also disrupted 20,000 residents; agriculture land were also badly damaged. [13] Eleven deaths were recorded and 100 missing fishermen in Noakhali District, 35,441 were relocated to camps, and 1.5 million people were trapped by floodwaters. [14] [15] Two people were killed when a boat capsized in Jagannathpur Upazila. [15]
Over a dozen fishing trawlers carrying an estimated 500 people off the coast of Cox's Bazar were unaccounted since 11 September. [16] On 15 September, most of these fishermen returned to land but 250 others on 23 trawlers remained missing. [17] At least eight trawlers capsized in rough seas; some fishermen swam to shore while many others were missing. Two bodies were found at Ukhia's Inani Beach while three were recovered along the shores of Nazirartek, Pechar Dwip and Kolatoli Square. [13] A search operation for the missing was initiated by the Bangladesh Navy. [17] Indian fishermen also rescued 12 Bangladeshi nationals stranded in the bay due to rough seas. [18]
On 14 September, the IMD said light to moderate rain was possible in West Bengal while some areas might experience extreme rainfall. Intense rainfall was expected in Odisha, Jharkhand, Bihar, Chhattisgarh, Mizoram, Tripura, Assam and Meghalaya from 14 to 16 September. [19] A "red" alert was later issued for West Bengal and Odisha with a greater expectation for intense rain. [20] In Kolkata, 72.4 mm (2.85 in) of rain was recorded over a 24-hour period. [21] Over 125.8 mm (4.95 in) of rain was measured between 13 and 14 September in the city. [22] Due to the heavy rains , the Damodar Valley Corporation released more than 3.5 lakh cusec (9,911 cubic metres per second) of water from its dams, resulting in inundation of Birbhum, Bankura, Howrah, Hooghly, North and South 24 Parganas, Purba and Paschim Medinipur, and Paschim Bardhaman districts of West Bengal. 28 people were killed due to these floods and 25,000 people had to moved to safer areas. [23]
The 2007 North Indian Ocean cyclone season was one of the most active North Indian Ocean cyclone seasons on record. The North Indian Ocean cyclone season has no official bounds, but cyclones tend to form between April and December, with peaks in May and November. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean.
The 2008 North Indian cyclone season was one of the most disastrous tropical cyclone seasons in modern history, causing more than 140,000 fatalities and over US$15 billion in damage. At the time, it was the costliest season in the North Indian Ocean, until it was surpassed by 2020. The season has no official bounds but cyclones tend to form between April and December. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean. There are two main seas in the North Indian Ocean—the Bay of Bengal, which is east of India, and the Arabian Sea, which is west of India. The official Regional Specialized Meteorological Centre in this basin is the India Meteorological Department (IMD), however the Joint Typhoon Warning Center releases unofficial advisories for military interests. An average of four to six storms form in the North Indian Ocean every season. Cyclones occurring between the meridians 45°E and 100°E are included in the season by the IMD.
Cyclonic Storm Akash was the first named tropical cyclone of the 2007 North Indian Ocean cyclone season. Warned by both India Meteorological Department (IMD) and Joint Typhoon Warning Center (JTWC), it formed from an area of disturbed weather on the Bay of Bengal on May 12, and gradually organized as it drifted northward. An eye began to develop as it approached land, and after reaching peak 3-min sustained winds of 85 km/h (55 mph) it struck about 115 km (71 mi) south of Chittagong in Bangladesh. Akash rapidly weakened over land, and advisories were discontinued on May 15.
The 1995 North Indian Ocean cyclone season was below-average and was primarily confined to the autumn months, with the exception of three short-lived deep depressions in May. There were eight depressions in the basin, which is Indian Ocean north of the equator. The basin is subdivided between the Bay of Bengal and the Arabian Sea on the east and west coasts of India, respectively. Storms were tracked by the India Meteorological Department (IMD), which is the basin's Regional Specialized Meteorological Center, as well as the American-based Joint Typhoon Warning Center (JTWC) on an unofficial basis.
The 2009 North Indian Ocean cyclone season was an event in the annual cycle of tropical cyclone formation. The North Indian Ocean cyclone season has no official bounds, but cyclones tend to form between April and December, with peaks in May and November. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean.
Cyclonic Storm Rashmi was the seventh tropical cyclone of the 2008 North Indian Ocean cyclone season and second cyclonic storm, as well as the fifth tropical cyclone in the Bay of Bengal that year. A fairly weak tropical cyclone, it caused some notable damage in Bangladesh and India.
The 2002 West Bengal cyclone was a deadly tropical cyclone that affected India and Bangladesh in November 2002. The sixth tropical cyclone and fourth cyclonic storm of the 2002 North Indian Ocean cyclone season, it developed in the Bay of Bengal northeast of Sri Lanka on November 10, as a tropical depression. After tracking northeast, the system strengthened into a cyclonic storm on November 11, as maximum sustained winds exceeded 65 km/h (40 mph). On November 12, it further intensified into a severe cyclonic storm. Later that day, the storm made landfall on Sagar Island in West Bengal with winds of 100 km/h (60 mph). After moving inland, it rapidly weakened and dissipated over Bangladesh on November 12.
The 2013 North Indian Ocean cyclone season was an event in the annual cycle of tropical cyclone formation, in which tropical cyclones formed in the North Indian Ocean and Arabian Sea. The season had no official bounds, but cyclones typically formed between May and December, with the peak from October to November. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean.
The 2014 North Indian Ocean cyclone season was an event in the annual cycle of tropical cyclone formation. The season included two very severe cyclonic storms, both in October, and one other named cyclonic storm, classified according to the tropical cyclone intensity scale of the India Meteorological Department. Cyclone Hudhud is estimated to have caused US$3.58 billion in damage across eastern India, and more than 120 deaths.
The 2015 North Indian Ocean cyclone season was an event in the annual cycle of tropical cyclone formation. The North Indian Ocean cyclone season has no official bounds, but cyclones tend to form between months of April and December, with the peak from May to November. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean.
The 2016 North Indian Ocean cyclone season was an event in the annual cycle of tropical cyclone formation. It was the deadliest season since 2010, killing more than 400 people. The season was an average one, seeing four named storms, with one further intensifying into a very severe cyclonic storm. The first named storm, Roanu, developed on 19 May while the season's last named storm, Vardah, dissipated on 18 December. The North Indian Ocean cyclone season has no official bounds, but cyclones tend to form between April and December, with the two peaks in May and November. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean.
The 2017 North Indian Ocean cyclone season was a below average yet deadly season in the annual cycle of tropical cyclone formation. This season produced only three named storms, of which one only intensified into a very severe cyclonic storm. The North Indian Ocean cyclone season has no official bounds but cyclones tend to form between April and December with the two peaks in May and November. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean. The season began with the formation Cyclone Maarutha on April 15 and ended with the dissipation of a deep depression on December 9.
The 2018 North Indian Ocean cyclone season was one of the most active North Indian Ocean cyclone seasons since 1992, with the formation of fourteen depressions and seven cyclones. The North Indian Ocean cyclone season has no official bounds, but cyclones tend to form between April and December, with the two peaks in May and November. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean.
The 2021 North Indian Ocean cyclone season was an average season, the North Indian Ocean cyclone season has no official bounds, but cyclones tend to form between April and December, peaking between May and November. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean. The season began on April 2, when a depression designated as BOB 01 was formed in the north Andaman Sea and quickly made landfall in Myanmar. The basin remained quiet for over a month before Cyclone Tauktae formed. It rapidly intensified into an extremely severe cyclonic storm before making landfall in Gujarat, become the strongest storm ever to strike that state since the 1998 Gujarat cyclone. Later that month, BOB 02 formed and later strengthened into Cyclone Yaas. Yaas rapidly intensified into a very severe cyclonic storm before making landfall in northwestern Odisha. The season's strongest tropical cyclone was Cyclone Tauktae, with maximum wind speeds of 185 km/h (115 mph) and a minimum barometric pressure of 950 hPa (28.05 inHg).
The 2022 North Indian Ocean cyclone season was an event in the annual cycle of tropical cyclone formation. It was an above-average season in terms of depressions and average in terms of deep depressions, but slightly below average in terms of cyclonic storms. It was also the least deadly North Indian Ocean cyclone season since 1988, according to official data. The season's strongest tropical cyclone was Cyclone Asani, with maximum wind speeds of 100 km/h and a minimum barometric pressure of 982 hPa. The North Indian Ocean cyclone season has no official bounds, but cyclones tend to form between April and December, with the peak from May to November. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean.
Cyclonic Storm Gulab and Severe Cyclonic Storm Shaheen were two tropical cyclones that caused considerable damage to South and West Asia during the 2021 North Indian Ocean cyclone season. Gulab impacted India and Pakistan, while Shaheen impacted Iran, Oman and the United Arab Emirates. Gulab was the third named storm of the 2021 North Indian Ocean cyclone season, as well as the fourth named storm of the season after its reformation in the Arabian Sea as Shaheen. The cyclone's origins can be traced back to a low-pressure area situated over the Bay of Bengal on September 24. The Pakistan Meteorological Department named this new cyclone Gulab. On September 26, Gulab made landfall in India's Andhra Pradesh and Pakistans Karachi but weakened overland, before degenerating into a remnant low on September 28. The system continued moving westward, emerging into the Arabian Sea on September 29, before regenerating into a depression early on September 30. Early on October 1, the system restrengthened into a Cyclonic Storm, which was named Shaheen. The system gradually strengthened as it entered the Gulf of Oman. While slowly moving westward, the storm turned southwestward, subsequently making an extremely rare landfall in Oman on October 3, as a Category 1-equivalent cyclone. Shaheen then rapidly weakened, before dissipating the next day.
The 2023 North Indian Ocean cyclone season was a highly above-average and deadly season, becoming the most active since 2019, with nine depressions and six cyclonic storms forming. It was the deadliest since 2017, mostly due to Cyclone Mocha, and had the second-highest accumulated cyclone energy (ACE) in the basin, after 2019. It also had the most extremely severe cyclonic storms on record, tying with 1999 and 2019. The North Indian Ocean cyclone season has no official bounds, but cyclones tend to form between April and December, with the peak from May to November. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean. However, a cyclone can form at any time during the year shown by an unnamed depression that affected Sri Lanka in January–February.
Very Severe Cyclonic Storm Hamoon was a moderately strong tropical cyclone that affected Bangladesh, India, and Myammar during October 2023. The fourth named storm of the 2023 North Indian Ocean cyclone season, Hamoon formed from a low-pressure area over the west-central Bay of Bengal on 21 October. Initially slowly developing, after it entered an area favorable for development, it rapidly intensified, peaking as a very severe cyclonic storm on 24 October. However, soon after, Hamoon weakened due to wind shear, later making landfall in Bangladesh as a severe cyclonic storm. Once inland, Hamoon degenerated into a low-pressure area, last being noted on 26 October.
The 2024 North Indian Ocean cyclone season is an ongoing event in the annual cycle of tropical cyclone formation. It has been unreasonably less active in terms of formation of cyclonic storms. The season has no official bounds, but cyclones tend to form between April and December, with the peak from May to Early November. These dates conventionally delimit each year when most tropical cyclones form in the northern Indian Ocean.
Severe Cyclonic Storm Remal was a devastating tropical cyclone that affected West Bengal and Bangladesh in late May 2024. It was the first depression and the first cyclonic storm of the 2024 North Indian Ocean cyclone season. According to the Bangladesh Meteorological Department, it turned into a cyclone from a deep depression on the evening of 25 May. The cyclone made landfall on West Bengal and Bangladesh's Sundarban Delta, just near the border at 8:30 pm on Sunday, 26 May as a severe cyclonic storm. The storm's sustained winds were 100 to 135 kilometres per hour during landfall in the coastal area. Remal killed at least 84 people including 65 in India and 19 in Bangladesh. About 30 million people in Bangladesh and many in West Bengal were affected by power outages.