Draft:1998 Bengal cyclone

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Severe Cyclonic Storm BOB 01
The cyclone near peak intensity.
Meteorological history
Formed17 May 1998
Dissipated20 May 1998
Severe cyclonic storm
3-minute sustained (IMD)
Highest winds110 km/h (70 mph)
Lowest pressure972 hPa (mbar); 28.70 inHg
Category 1-equivalent tropical cyclone
1-minute sustained (SSHWS/JTWC)
Highest winds130 km/h (80 mph)
Overall effects
Fatalities≥35
Injuries504
Missing≥100
Areas affectedIndia, Sri Lanka, Bangladesh

Part of the 1998 North Indian Ocean cyclone season

The 1998 Bengal cyclone was an intense tropical cyclone which impacted India, Sri Lanka, and Bangladesh during May 1998. The first depression, cyclonic storm, and severe cyclonic storm of the 1998 North Indian Ocean cyclone season, BOB 01 developed from a low-pressure area off the coast of Sri Lanka. After peaking as a severe tropical storm on May 20, it made landfall near Chittagong later that day. It rapidly weakened while inland, dissipating on May 21.

Meteorological history[edit]

Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
Map key
  Tropical depression (≤38 mph, ≤62 km/h)
  Tropical storm (39–73 mph, 63–118 km/h)
  Category 1 (74–95 mph, 119–153 km/h)
  Category 2 (96–110 mph, 154–177 km/h)
  Category 3 (111–129 mph, 178–208 km/h)
  Category 4 (130–156 mph, 209–251 km/h)
  Category 5 (≥157 mph, ≥252 km/h)
  Unknown
Storm type
triangle Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression

On 17 May, the Joint Typhoon Warning Center (JTWC) began tracking a weak tropical disturbance embedded in the near-equatorial trough which was near Sri Lanka.[1] As the disturbance coalesced, they issued a Tropical Cyclone Formation Alert (TCWC) for the system later that day.[2] Meanwhile, the India Meteorological Department (IMD) was tracking the system, stating that it had become a depression around that time and naming it BOB 01 since it was in the Bay of Bengal.[3] By 6:00 UTC the next day, the IMD upgraded the system into a deep depression[3] while the JTWC issued their first warning on it as Tropical Cyclone 01B.[1]

Steadily intensifying, BOB 01 became a cyclonic storm later that day.[3] The JTWC would state that it peaked with 1-minute sustained winds of 80 mph (130 km/h) around 0:00 UTC on May 20,[1] while the IMD claimed that it peaked with 3-minute sustained winds of 70 mph (115 km/h) a few hours earlier.[3] Later that day, the system made landfall near Chittagong, Bangladesh near peak intensity.[2] Tracking inland while weakening, the IMD issued its last advisory on the system on 12:00 UTC that day,[3] with the JTWC following suit a few hours later.[1][2]

Effects[edit]

Ahead of the storm, officials in Bangladesh relocated around 650,000 people, resulting in a lower loss of life.[4] Despite that, the system adversely affected low-lying areas,[5] destroying 6,000 homes and damaging another 9,945.[4][6] It produced a storm surge of 1.8 to 3 m (5.9 to 9.8 ft), inundating coastal towns.[7] At least 35 people were killed by the storm while 504 others were injured.[4][8][9] Five of the fatalities occurred in Chittagong, another five occurred on an island in the Cox's Bazar District, and sixteen more occurred when three fishing vessels sank near Chittagong.[9] Additionally, an estimated 4,000 fishermen were listed as missing at sea.[10] A total of 108,440 people were affected in Bangladesh.[4] An oil tanker anchored near Chittagong was tossed by rough seas into another vessel and sustained significant damage. Large quantities of crude oil spilled into the water due to a hole in the hull of the ship. Both of the ships involved in the incident were owned by the Bangladesh Shipping Corporation.[9] More than 10,000 tin-roofed homes were damaged by the cyclone's gusts which may have been as much as 100 mph (160 km/h) and over 100 fishermen went missing.[2] In the aftermath of the storm, the United Nations Educational, Scientific and Cultural Organization provided $40,000 in immediate funds for rehabilitation efforts. The Government of Germany also provided $270,166 to the affected population. The International Federation of Red Cross and Red Crescent Societies donated about $1.2 million to Bangladesh.[11]

See also[edit]

  • 1991 Bangladesh cyclone
  • Tropical cyclones portal
  • flagAustralia portal

References[edit]

  1. ^ a b c d "1998 ANNUAL TROPICAL CYCLONE REPORT" (PDF). Joint Typhoon Warning Center. 1999. Retrieved January 29, 2024.
  2. ^ a b c d "MONTHLY GLOBAL TROPICAL CYCLONE SUMMARY (MAY 1998)". Typhoon2000.com.
  3. ^ a b c d e "IMD TCR 1998" (PDF). India Meteorological Department. February 1999. Archived from the original on 2022-11-27. Retrieved 2024-01-29.{{cite journal}}: CS1 maint: bot: original URL status unknown (link)
  4. ^ a b c d Peter Rees-Gildea (May 25, 1998). "Bangladesh: Cyclone Information Bulletin No. 3" (PDF). Operations Fundraising and Reporting Department. Archived (PDF) from the original on 14 February 2009. Retrieved February 9, 2009.
  5. ^ Joint Typhoon Warning Center (1999). "Tropical Cyclone 01B Preliminary Report" (PDF). World Meteorological Organization. Archived from the original (PDF) on June 7, 2011. Retrieved February 8, 2009.
  6. ^ Office for the Coordination of Humanitarian Affairs (May 25, 1998). "Bangladesh: Cyclone Situation Report No. 2". United Nations. Archived from the original on March 16, 2005. Retrieved February 8, 2009.
  7. ^ Office for the Coordination of Humanitarian Affairs (May 19, 1998). "Bangladesh: Cyclone Situation Report No. 1". United Nations. Archived from the original on March 16, 2005. Retrieved February 8, 2009.
  8. ^ Staff Writer (May 21, 1998). Thousands return home in wake of killer cyclone in Bangladesh Deutsche Presse-Agentur
  9. ^ a b c Nizam Ahmed (May 20, 1998). "Chittagong — Bangladesh storm kills 26, injures more than 100". Reuters. Retrieved May 9, 2009.
  10. ^ International Federation of Red Cross and Red Crescent Societies (May 20, 1998). "Bangladesh: Cyclone Information Bulletin Number 2" (PDF). United Nations. Archived (PDF) from the original on 15 May 2009. Retrieved May 9, 2009.
  11. ^ Office for the Coordination of Humanitarian Affairs (February 19, 1999). "Bangladesh — Cyclones — May 1998 Contributions Report". ReliefWeb. Archived from the original on October 19, 2007. Retrieved May 8, 2009.