Deep Depression intensifies into Cyclonic Storm Vardah
The deep depression over Southeast Bay of Bengal is seen moving northwards. The system has intensified into a cyclonic storm Vardah.
Today at 5:30 am , it was marked near latitude 11.2°N and longitude 90.5°E, around 1060 km southeast of Visakhapatnam, 1150 km east-southeast of Machilipatnam, 340 km northwest of Car Nicobar and 240 km west-southwest of Port Blair.
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The system is likely to further intensify into a severe cyclonic storm and will continue to move in north direction for some more time and then will recurve northwest towards Andhra Pradesh.
The reason for the intensification of this storm can be attributed to the warm sea surface temperatures of the Bay of Bengal and longer sea travel.
Andaman and Nicobar Islands will continue to receive heavy to very heavy rains during next 24-48 hours.
In the wake of system approaching, light to moderate rains will start over Andhra Pradesh Coast around December 10 onward. Gradually the intensity will increase. Around December 11 and 12, we can expect moderate to heavy with isolated places witnessing extremely heavy spells.
Depression to intensify soon, cyclone likely
Moving further northwards, the depression over southeast Bay of Bengal continues to get more marked. The system is presently marked over 9.8°N and 90.5°E, around 180 km south-southeast of of Visakhapatnam, 1210 km south-southeast of Gopalpur, 260 km west-northwest of Car Nicobar and 310 km south-southwest of Port Blair.
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Presently, the system is moving at a speed of 10 kmph and is very likely to intensify into a deep depression during the next 24 hours.
According to weathermen, the system will be travelling in the open sea waters, which would make the weather conditions conducive for its further intensification. Cloud configuration and atmospheric conditions are indicating that system is most likely to concentrate into a cyclonic storm during the next 48 hours. If this happens, it will be name as Cyclone ‘Vardah’.
The system has already given heavy to very heavy rainfall over Andaman and Nicobar Islands. Moreover, it will continue to lash the islands during the next 24 hours.
Fishermen, locals and tourists are warned against venturing out in the sea. Reportedly, around 800 tourists are stranded in Havelock Island and Indian Navy has swung in the action to rescue them.
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Though, the system is still far away from the Indian coast but it is infusing lots of moisture over coastal parts of Tamil Nadu. Chennai is already witnessing intense clouding and rains may begin any time soon.
Depression forms in Bay of Bengal, to intensify further
The well marked low pressure area over southeast Bay and adjoining south Andaman Sea has finally intensified into a depression southeast Bay of Bengal .
It is now centered 8.5°N and 91.0°E, around 1305 km south-southeast of Visakhapatnam, 1330 km south-southeast of Gopalpur and 200 km west-southwest of Car Nicobar.
As the system will continue to travel in open waters, it is expect to further gain more strength and concentrate into a deep depression in another 24 hours.
The depression will presently move in west-northwest direction and then northwestwards during next 72 hours.
In wake of the system approaching, heavy to very rains will continue over Andaman and Nicobar Islands during the next 24 hours.
At present, the system is too far from the Indian mainland to affect the weather but it has changed the wind pattern over the region. With this, we can expect scattered light rain over Tamil Nadu including Chennai, Kerala and South Karnataka.
Well-marked low pressure in Bay persists, depression in 24 hours
The fresh weather system brewing in Bay of Bengal has sustained its strength as a well-marked low pressure area during the last 24 hours.
According to Skymet Weather, it is a slow moving system and is more or less prevailing at the same position in South Andaman Sea and adjoining Southeast Bay of Bengal.
The system is still churning in the open waters and thus, likely to gain more strength. Cloud configurations and atmospheric conditions are indicating that the low-pressure area may concentrate into a depression during the next 24 hours and subsequently into a deep depression in another 24 hours.
At present, the system will give heavy to very heavy rains over parts of Andaman and Nicobar Islands. Squally winds of 40-50 kmph, gusting up to 60 kmph can also seen over the Islands.
Sea conditions are also rough to very rough off and along the Andaman and Nicobar Island. In wake of this, fishermen are advised not to venture into the sea.
The system has already given moderate to heavy rains and thundershowers over the region. In span on 24 hours from 8:30 am on Monday, Port Blair recorded 49 mm of rain, Nancowry 31 mm, and Hut Bay 24 mm.
However, the system is far away from the Indian mainland to affect weather. But as the system is likely to move northwest direction, we can expect good rain and thundershowers over the several parts of the East Coast in the coming days.
Weather system intensifies into well marked low, depression to form soon
Just a few days ago, Cyclone Nada had formed in the Bay of Bengal giving heavy to very heavy rains over several parts of Tamil Nadu. So much so that Chennai, the capital city of Tamil Nadu also received a few heavy spells of rain.
In fact, the Cyclone revived the Northeast Monsoon which seemed buried under. Now, the cyclone is long. However, a fresh weather system has developed in the form of a cyclonic circulation.
Now, the weather system has intensified into a well-marked low pressure area and is presently over Andaman Sea and adjoining Sumatra. Conditions are quite favourable for further intensification of this weather system. So much so that the weather system is expected to intensify into a depression by today evening. Thereafter, the system may even intensify into a deep depression.
The system is expected to move in a west-northwestward direction towards South-central Bay of Bengal shortly.
Weather system intensifies over Bay, depression likely
A cyclonic circulation is presently seen over northern parts of Sumatra and adjoining South Andaman Sea. The system is likely to intensify into a low pressure area today evening. This low pressure will move in a west- northwest direction toward south central Bay of Bengal.
According to Skymet Weather, this system will further gain more strength and intensify into a depression.
After reaching south central Bay of Bengal, this weather system is expected to move in a northwest direction toward North Andhra Pradesh and Odisha coast.
This will be the fourth weather system of the season which has developed over southeast Bay of Bengal.
The first low pressure area had intensified into Cyclone Kyant, while the second concentrated into a depression. The third low had strengthened into Cyclone Nada, which ended the persistent dry spell over Tamil Nadu and adjoining areas of South Peninsula.
The reason for these successive weather systems could be attributed to the warming sea surface temperatures, which favors the formation of low pressure area or depression.
As this system will have a prolonged time over the sea, we can expect it to strengthen into a cyclone.
Cyclone Nada has not even died down completely and another low pressure area has already started brewing in Bay of Bengal.
The system is presently seen as a cyclonic circulation over Sumatra and equatorial Indian Ocean. It is likely to move in west-northwest direction and intensify into a low pressure area in another 24 hours.
Weather models indicate that system will further gain more strength and concentrate into a depression during the subsequent 48 hours.
At present the system is far away from the Indian coast to affect the weather. However, it is likely to heavy rains and thundershowers over Andaman and Nicobar Islands in the next 24 hours.
According to Skymet Weather, this will be the fourth low pressure area to form in South Andaman Sea during this Sea. The first low pressure area had intensified into Cyclone Kyant, while the second one had strengthened into a depression.
The third low had strengthened into Cyclone Nada, which had given ended the prolonged dry spell over Tamil Nadu and adjoin regions of Peninsular India.
Nada had given moderate to heavy rainfall over Tamil Nadu including Chennai during the last 48 hours. Kerala, South Karnataka and South Coastal Andhra Pradesh has also recorded light to moderate showers due to this system.
Nada is now seen as a low pressure area over Kerala and adjoining region and is likely to dissipate soon.
Image credit: Quartz
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