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{{Short description|North Indian cyclone}}
{{Use dmy dates|date=September 2024}}
{{Infobox weather event
| name = Deep Depression BOB 05
| image = BOB 05 2024-09-14 0600Z.jpg
| caption = Deep Depression BOB 05 at its peak intensity on 14 September
| formed = 13 September 2024
| dissipated = 18 September 2024
}}
{{Infobox weather event/IMD
| winds = 30
| pressure = 989
}}
{{Infobox weather event/Effects
| year = 2024
| fatalities = 53 (25 in Bangladesh, 28 in India)
| missing = 308
| damages =
| affected = [[Bangladesh]], [[India]]
| ibtracs =
}}
{{Infobox weather event/Footer
| season = [[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 [[Tropical cyclogenesis|originated]] from a broad area of cyclonic circulation. Moving generally northwestward, the depression failed to intensify further, reaching [[maximum sustained wind]]s of 55 km/h (35 mph) and a [[central pressure]] of {{convert|989|hPa|inHg|abbr=on|sigfig=4}}. 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]], {{cvt|72.4|mm}} of rain was recorded over a 24-hour period, with a total of {{cvt|125.8|mm}}.

==Meteorological history==
{{Storm path|BOB05 2024 path.png|left|colors=new}}


The [[India Meteorological Department]] (IMD) started to track a cyclonic circulation over Myanmar on 11 September.<ref>{{Cite report |title=Tropical Weather Outlook |date=12 September 2024|url=https://rsmcnewdelhi.imd.gov.in/uploads/archive/2/2_f303b6_TROPICAL%20WEATHER%20OUTLOOK%20based%20on%200300%20UTC%20of%2012.09.2024.pdf |access-date=12 September 2024 |location=New Delhi, India}}</ref><ref>{{Cite web |date=2024-09-14 |title=How Pacific Cyclone Yagi might bring another wet spell in Delhi next week |url=https://www.indiatoday.in/india/story/pacific-cyclone-yagi-might-bring-another-wet-spell-delhi-weather-rain-imd-2599658-2024-09-14 |access-date=2024-09-15 |website=India Today |language=en}}</ref> This disturbance coalesced into a low-pressure area the next day,<ref>{{Cite report |title=Tropical Weather Outlook |date=13 September 2024|url=https://rsmcnewdelhi.imd.gov.in/uploads/archive/2/2_ccf537_TROPICAL%20WEATHER%20OUTLOOK%20based%20on%200000%20UTC%20of%2013.09.2024.pdf |access-date=13 September 2024 |publisher=India Meteorological Department|location=New Delhi, India}}</ref> further developing into a well-marked low-pressure just a few hours later.<ref>{{Cite report |title=Tropical Weather Outlook |date=13 September 2024|url=https://mausam.imd.gov.in/backend/assets/cyclone_pdf/TROPICAL_WEATHER_OUTLOOK_based_on_0300_UTC_of_13_09_2024.pdf |access-date=13 September 2024 |publisher=India Meteorological Department|location=New Delhi, India}}</ref> Soon after, it intensified into a depression.<ref>{{Cite report |title=Tropical Weather Outlook |date=13 September 2024|url=https://mausam.imd.gov.in/backend/assets/cyclone_pdf/TROPICAL_WEATHER_OUTLOOK_based_on_1200_UTC_of_13_09_2024.pdf |access-date=13 September 2024 |publisher=India Meteorological Department|location=New Delhi, India}}</ref> The following day, the depression further strengthened into a deep depression over [[Bangladesh]] and [[West Bengal]].<ref>{{cite report|title=Tropical Weather Outlook|date=14 September 2024|url=https://mausam.imd.gov.in/backend/assets/cyclone_pdf/TROPICAL_WEATHER_OUTLOOK_based_on_0000_UTC_of_14_09_2024.pdf|access-date=14 September 2024|publisher=[[India Meteorological Department]]|location=New Delhi, India}}</ref>
[[File:BOB 05 2024-09-15 0605Z.jpg|thumb|Deep Depression BOB 05 on September 15, 2024.]]

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.<ref>{{cite report|title=Tropical Weather Outlook|date=16 September 2024|url=https://rsmcnewdelhi.imd.gov.in/uploads/archive/2/2_de5463_TROPICAL%20WEATHER%20OUTLOOK%20based%20on%201800%20UTC%20of%2016.09.2024.pdf|access-date=16 September 2024|publisher=[[India Meteorological Department]]|location=New Delhi, India}}</ref> A few hours later, the system weakened to a depression as it drifted slowly westward over western India.<ref>{{cite report|title=Tropical Weather Outlook|date=17 September 2024|url=https://rsmcnewdelhi.imd.gov.in/uploads/archive/2/2_a232f5_TROPICAL%20WEATHER%20OUTLOOK%20based%20on%200000%20UTC%20of%2017.09.2024.pdf|access-date=17 September 2024|publisher=[[India Meteorological Department]]|location=New Delhi, India}}</ref> The depression subsequently lost organization, degenerating into a well-marked low pressure area over [[Madhya Pradesh]] by 00:00 UTC on September 18.<ref>{{cite report|title=Tropical Weather Outlook|date=18 September 2024|url=https://rsmcnewdelhi.imd.gov.in/uploads/archive/2/2_486908_TROPICAL%20WEATHER%20OUTLOOK%20based%20on%200000%20UTC%20of%2018.09.2024.pdf|access-date=18 September 2024|publisher=[[India Meteorological Department]]|location=New Delhi, India}}</ref>

==Impact==
===Bangladesh===
The storm produced heavy rainfall in southeastern Bangladesh.<ref name="radiopk1">{{cite news |title=Flooding, landslides kill 7 people in Bangladesh |url=https://www.radio.gov.pk/13-09-2024/flooding-landslides-kill-7-people-in-bangladesh |access-date=15 September 2024 |work=Pakistan Broadcasting Corporation |date=13 September 2024}}</ref> Seven people were killed by landslides in [[Cox's Bazar District]].<ref name="radiopk1"/> 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.<ref name="tbs1">{{cite news |title=5 fishermen die, 70 go missing due to inclement weather in Cox's Bazar |url=https://www.tbsnews.net/bangladesh/3-fishermen-die-70-go-missing-due-inclement-weather-coxs-bazar-941106 |access-date=15 September 2024 |work=The Business Standard |date=14 September 2024}}</ref> 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.<ref name="deshrupantor1">{{cite news |title=Nōẏākhālītē phēra ban'yā paristhitira abanati|trans-title=Flood situation worsens again in Noakhali|script-title=be:নোয়াখালীতে ফের বন্যা পরিস্থিতির অবনতি |url=https://www.deshrupantor.com/536699/%E0%A6%A8%E0%A7%8B%E0%A7%9F%E0%A6%BE%E0%A6%96%E0%A6%BE%E0%A6%B2%E0%A7%80%E0%A6%A4%E0%A7%87-%E0%A6%AB%E0%A7%87%E0%A6%B0-%E0%A6%AC%E0%A6%A8%E0%A7%8D%E0%A6%AF%E0%A6%BE-%E0%A6%AA%E0%A6%B0%E0%A6%BF%E0%A6%B8%E0%A7%8D%E0%A6%A5%E0%A6%BF%E0%A6%A4%E0%A6%BF%E0%A6%B0-%E0%A6%85%E0%A6%AC%E0%A6%A8%E0%A6%A4%E0%A6%BF |access-date=15 September 2024|language=bn |work=Desh Rupantor |date=14 September 2024}}</ref><ref name="SAMAKAL"/> Two people were killed when a boat capsized in [[Jagannathpur Upazila]].<ref name="SAMAKAL">{{cite news|title=কক্সবাজারসহ তিন জেলায় ৬ মৃত্যু নিখোঁজ শতাধিক|url=https://samakal.com/whole-country/article/255995/%E0%A6%95%E0%A6%95%E0%A7%8D%E0%A6%B8%E0%A6%AC%E0%A6%BE%E0%A6%9C%E0%A6%BE%E0%A6%B0%E0%A6%B8%E0%A6%B9-%E0%A6%A4%E0%A6%BF%E0%A6%A8-%E0%A6%9C%E0%A7%87%E0%A6%B2%E0%A6%BE%E0%A7%9F-%E0%A7%AC-%E0%A6%AE%E0%A7%83%E0%A6%A4%E0%A7%8D%E0%A6%AF%E0%A7%81-%E0%A6%A8%E0%A6%BF%E0%A6%96%E0%A7%8B%E0%A6%81%E0%A6%9C-%E0%A6%B6%E0%A6%A4%E0%A6%BE%E0%A6%A7%E0%A6%BF%E0%A6%95|language=bn|date=14 September 2024|access-date=14 September 2024|newspaper=[[Samakal]]}}</ref>

Over a dozen fishing trawlers carrying an estimated 500 people off the coast of Cox's Bazar were unaccounted since 11 September.<ref name="amadershomoy1">{{cite news |title=Baṅgōpasāgarē ṭralāraḍubi: Nikhōm̐ja 5 śatādhika jēlē, 2 janēra mr̥tyu|script-title=be:বঙ্গোপসাগরে ট্রলারডুবি: নিখোঁজ ৫ শতাধিক জেলে, ২ জনের মৃত্যু|trans-title=Trawler sinks in Bay of Bengal: 500 fishermen missing, 2 dead |url=https://www.amadershomoy.com/country/article/122378/%E0%A6%AC%E0%A6%99%E0%A7%8D%E0%A6%97%E0%A7%8B%E0%A6%AA%E0%A6%B8%E0%A6%BE%E0%A6%97%E0%A6%B0%E0%A7%87-%E0%A6%9F%E0%A7%8D%E0%A6%B0%E0%A6%B2%E0%A6%BE%E0%A6%B0%E0%A6%A1%E0%A7%81%E0%A6%AC%E0%A6%BF |access-date=15 September 2024 |work=Amader Shomoy |date=14 September 2024}}</ref> On 15 September, most of these fishermen returned to land but 250 others on 23 trawlers remained missing.<ref name="risingbd1">{{cite news |title=Baṅgōpasāgarē 23 mācha dharāra ṭralāra nikhōm̐ja, ḍubēchē ēkaṭi|language=bn|script-title=bn:বঙ্গোপসাগরে ২৩ মাছ ধরার ট্রলার নিখোঁজ, ডুবেছে একটি|trans-title=23 fishing trawlers missing, one sunk in Bay of Bengal |url=https://www.risingbd.com/bangladesh/news/573053 |access-date=15 September 2024 |work=Risingbd |date=15 September 2024}}</ref> 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]].<ref name="tbs1" /> A search operation for the missing was initiated by the [[Bangladesh Navy]].<ref name="risingbd1" /> Indian fishermen also rescued 12 Bangladeshi nationals stranded in the bay due to rough seas.<ref>{{cite news |title=Baṅgōpasāgarē bhāsamāna 12 bānlādēśikē ud'dhāra karalō bhāratīẏa jēlērā|trans-title=Indian fishermen rescued 12 Bangladeshis floating in the Bay of Bengal|script-title=bn:বঙ্গোপসাগরে ভাসমান ১২ বাংলাদেশিকে উদ্ধার করলো ভারতীয় জেলেরা |url=https://ajkerdarpon.com/news/bngoopsagre-vasman-12-bangladesike-uddhar-krlo-varteez-jelera |access-date=15 September 2024 |work=Daily Ajker Darpon |language=bn |date=15 September 2024}}</ref>

===India===
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.<ref name="et1">{{cite news |title=Deep depression formed near Kolkata. IMD issues heavy rainfall and wind warning for 9 states |url=https://economictimes.indiatimes.com/news/india/deep-depression-formed-near-kolkata-imd-issues-heavy-rainfall-and-wind-warning-for-9-states/articleshow/113340665.cms?from=mdr |access-date=15 September 2024 |work=The Economic Times |date=14 September 2024}}</ref> A "red" alert was later issued for West Bengal and Odisha with a greater expectation for intense rain.<ref name="Kumar1">{{cite news |last1=Kumar |first1=Abhijeet |title=IMD issues 'red' alert for West Bengal and Odisha, 'orange' alert for Delhi |url=https://www.business-standard.com/india-news/imd-issues-red-alert-for-west-bengal-and-odisha-orange-alert-for-delhi-124091400239_1.html |access-date=15 September 2024 |work=Business Standard |date=14 September 2024}}</ref> In [[Kolkata]], {{cvt|72.4|mm}} of rain was recorded over a 24-hour period.<ref>{{cite news|url=https://www.thehindu.com/news/national/west-bengal/heavy-rains-lash-kolkata-more-showers-in-forecast/article68641382.ece|title=Heavy rains lash Kolkata; more showers in forecast|work=The Hindu}}</ref> Over {{cvt|125.8|mm}} of rain was measured between 13 and 14 September in the city.<ref name="telegraphindia1">{{cite news |title=Deep depression brings over 125 mm of rain to Calcutta, halts traffic in parts of the city |url=https://www.telegraphindia.com/west-bengal/kolkata/heavy-rain-lashes-south-bengal-more-showers-expected/cid/2048032 |access-date=15 September 2024 |work=The Telegraph |date=14 September 2024}}</ref>
Due to the heavy rains, the [[Damodar Valley Corporation]] released more than 3.5 lakh [[cusec]] ({{convert|350000|cuft|m3|0|sigfig=4|abbr=off|order=out|disp=number}} [[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. Twenty-eight people were killed due to these floods and 25,000 people had to moved to safer areas.<ref>{{cite news|url= https://www.deccanherald.com/india/west-bengal/damodar-valley-corporation-reduces-release-of-water-bengal-flood-situation-still-grim-3195731|title=Damodar Valley Corporation reduces release of water, Bengal flood situation still grim|work=The Deccan Herald}}</ref>
{{clear}}

==See also==
{{portal|Tropical cyclones}}
*[[Weather of 2024]]
*[[Tropical cyclones in 2024]]
{{clear}}

==References==
{{reflist}}

{{2024 North Indian Ocean cyclone season buttons}}

[[Category:2024 disasters in Bangladesh]]
[[Category:2024 disasters in India]]
[[Category:2024 North Indian Ocean cyclone season]]
[[Category:September 2024 in Bangladesh]]
[[Category:September 2024 in India]]
[[Category:Tropical cyclones in Bangladesh]]
[[Category:Tropical cyclones in India]]
[[Category:Deep depressions]]

Deep Depression BOB 05 (2024) - Revision history

Keem Fame rich: new entry