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Cyclone Thane

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Very Severe Cyclonic Storm Thane (06B)
Very severe cyclonic storm (IMD scale)
Category 1 tropical cyclone (SSHWS)
Cyclonic Storm Thane on December 27
FormedDecember 25, 2011
DissipatedCurrently active
Highest winds3-minute sustained: 120 km/h (75 mph)
1-minute sustained: 140 km/h (85 mph)
Lowest pressure980 hPa (mbar); 28.94 inHg
FatalitiesNone
Part of the 2011 North Indian Ocean cyclone season

Very Severe Cyclonic Storm Thane (IMD designation: BOB 05, JTWC designation: 06B, also known as Cyclone Thane) is the second cyclonic storm and the first storm to reach Very Severe Cyclonic Storm intensity during the 2011 North Indian Ocean cyclone season. Developing out of an area of low pressure on December 25, Thane organized into a tropical storm and eventually a Severe Cyclone thereafter. The system now poses a serious threat to the Indian states of Tamil Nadu and Andhra Pradesh, and their coasts have been set on high alert.

Meteorological history

Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
Map key
Saffir–Simpson scale
  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

The IMD reported on December 25 that a low-pressure area had organised itself into a depression over southeast Bay of Bengal, about 1000 km southeast of Chennai.[1] Soon, a TCFA was issued by the JTWC on the same day and was upgraded to a tropical cyclone, designating it '06B'. The depression intensified into a deep depression on December 26.[2] Soon the IMD upgraded the deep depression into a Cyclonic Storm and named it 'Thane', making it the second cyclonic storm of the season.[3] Thane later intensified into a Severe Cyclonic Storm on December 28.[4] The JTWC reported that windspeeds in the storm center have crossed 65 knots per hour, thus the storm is the first cyclonic storm of the 2011 season to reach Category 1 status in the SSHS hurricane scale[5]. In just a few hours, the IMD reported the storm to have reached Very Severe Cyclonic Storm status[6] .

Preparations

Tamil Nadu

Chennai is readying for any possible calamity. The National Disaster Response Force (NDRF) has been put on alert. The corporation has geared up to deal with any damage the storm may cause. Regional meteorological department deputy director Y E A Raj said the storm is likely to enter the Chennai region between Cuddalore and Nellore.

According to the Met department, the cyclone is likely to hit south Chennai areas first. Met officials have advised fishermen along the city's coast not to venture out into the sea until the cyclone crosses the city. Hundreds of mechanized boats and trawlers at several coastal areas like Kovalam and Neelankarai on East Coast Road (ECR) and at Kasimedu fishing harbour in north Chennai remained on the shores.Officials also warned residents against going to the beach or swimming in it as tidal waves would be two metres higher than normal. "There might be a gradual increase in the wind speed from Wednesday. The Met office will send alerts through Cyclone Warning Dissemination (CWD) system in case the normal telecommunication network fails. The satellite-based CWD networks will send direct updates to AIR, district collectorates and local administrations," Srini said.

M Sasidhar Reddy, vice-chairman of the National Disaster Management Authority, said he is in touch with officials in Tamil Nadu and Andhra Pradesh to keep disaster management teams in a state of readiness.

Andhra Pradesh

The current chief minister of Andhra Pradesh, Nallari Kiran Kumar Reddy has instructed all the district collectors of the concerned districts of the state, mainly Nellore and Prakasam districts to take all precautionary measures in the wake of the approaching storm. APSRTC has been asked to keep sufficient buses in reserve in case of evacuation of the people[7] .

Officials are reporting that food stocks, drinking water, emergency power etc. have been kept ready in reserves[7].

References

  1. ^ IMD. "Depression BOB 05 Warning 01". IMD. IMD. Retrieved 25 December 2011.
  2. ^ IMD. "Deep Depression BOB 05 Warning 3". IMD. IMD. Retrieved 26 December 2011.
  3. ^ IMD. "IMD Warning 8 for Cyclone Thane". IMD. IMD. Retrieved 27 December 2011.
  4. ^ IMD. "IMD Upgradation of Thane to a Severe Cyclonic Storm". IMD. IMD. Retrieved 28 December 2011.
  5. ^ JTWC. "JTWC Thane Warning No. 11". JTWC. JTWC. Retrieved 28 December 2011.
  6. ^ IMD. "IMD Than VSCS Status". IMD. IMD. Retrieved 28 December 2011.
  7. ^ a b IBN Live (28 December 2011). "Cyclone Thane: Food, medicines ready". IBN Live. Retrieved 28 December 2011.

See also

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