Cyclone Burevi | UPSC
Cyclone Burevi hurtling towards Trincomalee on Lanka’s east coast
WHY IN NEWS:
The cyclone will make a second landfall on December 3-4 along the Tamil Nadu coast
SYLLABUS COVERED: GS 1 : Geography : Cyclone
For PRELIMS it is important to understand the causes , landfall and warnings .
For MAINS can you mention few latest technologies used in cyclone prediction ?
- The Burevi will be the fifth cyclonic storm to take shape into the North Indian Ocean this year.
- Earlier, Cyclone Nivar, which made its landfall in Puducherry last week.
- Cyclone Gati, which made its landfall in Somalia, Cyclone Nisarga in Maharashtra and Cyclone Amphan, which hit eastern India in May.
- Burevi will be the least destructive of all five cyclones formed this year.
CYCLONE PATH TRAJECTORY
- It is close to north of Trincomalee .
- It is very likely to move west-northwestwards and cross Sri Lanka coast.
- The IMD has also predicted isolated heavy to very heavy rainfall over south Tamil Nadu and south Kerala.
NAMING OF CYCLONE
- Burevi is named in accordance with the guidelines of the World Meteorological Organisation (WMO).
- Usually, the names of the storms are kept in alphabetical order.
- The formula was agreed in 2004.
- For the Indian Ocean region, the naming of cyclones began in 2000.
- The IMD said that a deep depression intensified into cyclonic storm “Burevi” on Tuesday evening.
- After crossing Thiruvananthapuram, the cyclone would weaken and turn into a depression when it reaches the Arabian Sea.
- The eye of the cyclone would be relatively calm.
- It is projected outside the eye up to around 100 km .
- It would create extreme rainfall and strong winds in and around Thiruvananthapuram.
- The cyclone’s current wind speeds are around 75-85 kmph, with gusts of up to 95 kmph.
- The storm will further intensify slightly to wind speeds of 80-90 kmph, with gusts of up to 100 kmph by the evening of December 2.
- It will make landfall close to the city of Trincomalee between Batticaloa and Mullaitivu.
ALSO READ : CYCLONE FORECASTING
- Heavy to very heavy rainfall at a few places with isolated Extremely heavy falls very likely over south Tamilnadu (Kanniyakumari, Tirunelveli, Thoothukudi).
SOURCES : IMD
- Also,over south Kerala (Thiruvananthapuram, Kollam, Pathanamthitta andAlappuzah) heavy rainfall is expected.
- Heavy rainfall of more than 100 millimetres (mm) can be expected at some places.
- The cyclone will bring rain to several places in the North-western province as well.
- Fairly strong gusty winds (25-40 kmph) can be expected in Northern, North Central, Eastern, North Western and Western provinces.
ALERTS AND WARNING – IMD
- Sea conditions is very rough to high over southwest Bay of Bengal and along & off east Sri Lanka coast
- IMD advises total suspension of fishing operation during 2nd to 5th December over the area.
- Developed in the Bay of Bengal, the very severe cyclone Nivar, with wind speeds of 89 to 117 km/hr, had hit near Karaikal on November 25.
- Unstable sea conditions, in the southwest region of Bay of Bengal, continue due to the recent crossing of Nivar.
- The overall sea conditions currently remain disturbed.
- There is a high possibility that Cyclone Burevi would not strengthen beyond the intensity of a cyclonic storm.
- When such consecutive systems develop in the same region of the ocean, the predecessor system leads to upwelling.
- In the absence of warm sea surface conditions, any cyclone, in this case Burevi, will not get enough fuel to intensify further while at sea.
- Burevi will remain a cyclonic storm (wind speed 62 to 88 km/hr) till December 5, before it weakens into a deep depression.
ALSO READ : CYCLONE AMPHAN
- Since 1900, there have been 24 cyclones that have impacted Sri Lanka.
- Fourteen of these cyclones were moderate storms while ten were severe or above.
- Cyclone Roanu caused widespread flooding and landslides in 22 out 25 districts in the country, destroying homes and submerging entire villages.
- An estimated 301,602 people have been affected by this disaster, including at least 21,484 people who remain displaced from their homes.
- After that, very severe Cyclone Ockhi in November 2017 also had a major impact on Sri Lanka, with 26 fatalities and great financial losses.
- It will be a double whammy for Tamil Nadu as the state is still trying to assess the damages and recuperate from the damage caused by very severe Cyclone Nivar .
- The cyclone had destroyed 10,000 hectares of crops in the state .
- The damage in Andhra Pradesh that got a lot of rainfall from the cyclone was in a huge area of 6.59 lakh hectares.
- The extent of the impact and damage remains to be seen.
SOURCES: THE IE | Cyclone Burevi | UPSC