Satellite images capture twin Cyclonic Storm over the Indian Ocean
Monday, May 09: Last week, as a cyclonic circulation started to take shape near the Andaman Sea, meteorologists began to warn the potential impacts on the eastern coast of India. On Sunday, the system intensified into a Severe Cyclonic Storm! Still, the threat to the coast appears minimal as it is expected to weaken into a deep depression by Wednesday while recurving along and off the Odisha coast.
Meanwhile, its twin has emerged over the southern parts of the Indian Ocean over the weekend. The storm has been named Cyclone Karim, based on the suggestion from the East African country Seychelles. The cyclone is currently a category two hurricane with a wind speed of 112 kmph gusting at nearly 140 kmph.
On the other hand, Cyclone Asani has remained a Severe Cyclonic Storm on Monday with wind speeds of 100-110 kmph gusting to 120 kmph, as per the India Meteorological Department (IMD). It lies roughly 500 km southeast of Visakhapatnam in Andhra Pradesh and is expected to move towards the Odisha coast by Tuesday. By Wednesday, it will recurve and move along the Odisha coast while weakening into a cyclonic storm.
Twin tropical cyclones spinning in opposite directions north and south of the equator are not new!
Cyclone Fani formed over the Bay of Bengal in April 2019 along with Tropical Cyclone Lorna over the southern Indian Ocean. While Fani turned into an extremely severe cyclonic storm with a maximum wind speed of 250 kmph, Lorna was a Category 1 hurricane and could attain a maximum of 70 kmph.
Such twin tropical cyclones resemble mirror images of each other, spinning at roughly the same longitude but in opposite directions, as seen in the satellite images. Such events are also common in the western Pacific Ocean. They don't happen in the eastern Pacific or Atlantic Basins because tropical cyclones do not occur in lower latitudes south of the equator there.
Winds around low-pressure systems spin clockwise in the Southern Hemisphere but counterclockwise in the Northern Hemisphere due to the Coriolis effect a force caused by Earth's rotation that deflects winds to the left in the Southern Hemisphere and to the right in the Northern Hemisphere.
Similar to 2019, the instigator of this pair of cyclones was the Madden-Julian Oscillation (MJO), a disturbance near the tropics that moves east around the globe every 30 to 50 days. Westerly winds over the equator line on the Indian Ocean have been strong past several days, likely due to MJO. Such strong westerly winds over the equator line can sometimes induce cyclonic circulations and lead to the simultaneous formation of cyclones over the Northern hemisphere and Southern hemisphere, called Twin Cyclones.
"We usually see the twin cyclones develop following the passage of the convectively-active phase of the MJO," explains Dr Michael Ventrice, an atmospheric scientist at The Weather Company, an IBM Business. Ventrice said the MJO primes the environment for tropical cyclone development thanks to large gyres of low-pressure left behind from enhanced thunderstorms near the equator and enhanced areas of spin north and south of the equator from low-level westerly winds.
When these twin storms are close to each other, i.e., within 1000 km, they even interact with each other. However, Asani and Karim are unlikely to interact because the distance between them is more than 2800 km.
The Indian Ocean has a year-round Cyclone Season. The tropical cyclone season in the northern Indian Ocean, which includes the Bay of Bengal and the Arabian Sea, is quite unusual, with two peaks one from April to June and the second from September to December. However, the cyclone season over the southwest Indian Ocean basin peaks between November and April, making Karim quite an exception.
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- Discover - Seychelles .Travel - Seychelles Tourism Board - December 10th, 2016 [December 10th, 2016]
- Seychelles Beach Resort - Wyndham Vacation Rentals - December 13th, 2016 [December 13th, 2016]
- Seychelles: Ethiopia Invites Seychelles to Invest in Its Tourism Industry - AllAfrica.com - February 7th, 2017 [February 7th, 2017]
- Seychelles Tourism reaches out to Belgium visitors - eTurboNews - February 7th, 2017 [February 7th, 2017]
- Getting to know the Seychelles - Alternatives Journal (blog) - February 10th, 2017 [February 10th, 2017]
- Hundreds of whales wash up dead on New Zealand beach - Seychelles News Agency - February 11th, 2017 [February 11th, 2017]
- Seychelles Vice President spent time at KMB - India.com - February 11th, 2017 [February 11th, 2017]
- Central Bank of Seychelles warns of temporary interruption to online banking platform - Seychelles News Agency - February 11th, 2017 [February 11th, 2017]
- 2 Russian nationals in Seychelles illegally are deported - Seychelles News Agency - February 11th, 2017 [February 11th, 2017]
- Seychelles' former President launches James Michel Foundation to continue promoting the blue economy - Seychelles News Agency - February 11th, 2017 [February 11th, 2017]
- SA, Seychelles nationals held in narcotics crackdown - The Standard (press release) - February 11th, 2017 [February 11th, 2017]
- A fern named Kati: Small plant in Seychelles named after conservationist - Seychelles News Agency - February 11th, 2017 [February 11th, 2017]
- Four suspected foreign drug barons deported to Seychelles - The Star, Kenya - February 12th, 2017 [February 12th, 2017]
- 33% increase in tourism arrivals in Seychelles: True! - eTurboNews - February 15th, 2017 [February 15th, 2017]
- SAA adds new code share route with Air Seychelles - News24 - February 17th, 2017 [February 17th, 2017]
- Navy completes Seychelles ship refit - Times of India - February 17th, 2017 [February 17th, 2017]
- Crystal Esprit Performs Seychelles Rescue - Cruise Industry News ... - Cruise Industry News - February 18th, 2017 [February 18th, 2017]
- South African Airways announces codeshare agreement with Air Seychelles - BizNis Africa - February 20th, 2017 [February 20th, 2017]
- Seychelles - The New York Times - February 20th, 2017 [February 20th, 2017]
- New Seychelles Diary blog enhancing tourism - eTurboNews - February 21st, 2017 [February 21st, 2017]
- Air Seychelles touches down for first time in Durban - eTurboNews - February 21st, 2017 [February 21st, 2017]
- Seychelles Tourism Minister works for daily flights with Mauritius - eTurboNews - February 22nd, 2017 [February 22nd, 2017]
- Seychelles Tourism is in Jeddah promoting tourism - eTurboNews - February 23rd, 2017 [February 23rd, 2017]
- Destination Seychelles: Topping travel lists in the US - eTurboNews - February 23rd, 2017 [February 23rd, 2017]
- Fourth Steber vessel for Seychelles resort - Manning River Times - February 23rd, 2017 [February 23rd, 2017]
- Seychelles' Dubai office welcomes visitors to Dubai travel and tourism event - eTurboNews - February 24th, 2017 [February 24th, 2017]
- Future is BRIGHT for Seychelles hospitality graduates - eTurboNews - February 24th, 2017 [February 24th, 2017]
- Seychelles Footwear's President and Director of Product on Overseeing the Brand Together - Footwear News - February 24th, 2017 [February 24th, 2017]
- French 'Memo Planet' supports Alain St.Ange - FTNnews.com (press release) - February 28th, 2017 [February 28th, 2017]
- Seychelles Tourism on the road in South Africa - eTurboNews - March 1st, 2017 [March 1st, 2017]
- #TravelGoals 2017: Rent a private Island in Indonesia or the Seychelles - GQ India - March 1st, 2017 [March 1st, 2017]
- Lanka and Seychelles to jointly fight drug menace - The Sunday Times Sri Lanka - March 1st, 2017 [March 1st, 2017]
- Mohammed receives President of Seychelles - Gulf Today - March 1st, 2017 [March 1st, 2017]
- St.Ange from Seychelles receives more support from the Mauritius - FTNnews.com (press release) - March 2nd, 2017 [March 2nd, 2017]
- Seychelles vies for its fair share of the China market - eTurboNews - March 2nd, 2017 [March 2nd, 2017]
- Seychelles reports 17% increase in South African visitors - Bizcommunity.com - March 2nd, 2017 [March 2nd, 2017]
- Seychelles Tourism team on its way to ITB Berlin - eTurboNews - March 3rd, 2017 [March 3rd, 2017]
- Breakout Role: Seychelles - Paste Magazine - March 3rd, 2017 [March 3rd, 2017]
- Get to Know the Seychelles - TravelPulse - March 3rd, 2017 [March 3rd, 2017]
- Moratorium update on large hotel projects in Seychelles - eTurboNews - eTurboNews - March 4th, 2017 [March 4th, 2017]
- France: Top producer for Seychelles Tourism - eTurboNews - March 8th, 2017 [March 8th, 2017]
- Seychelles holidays beneath the waves promoted in Italy - eTurboNews - March 11th, 2017 [March 11th, 2017]
- Abu Dhabi students fall in love with Seychelles - eTurboNews.com - eTurboNews - March 11th, 2017 [March 11th, 2017]
- Behind the scenes of the Seychelles debt-for-nature deal ... - ImpactAlpha (registration) - March 11th, 2017 [March 11th, 2017]
- Travel: Paradise found on Alphonse Island in the Seychelles - The Scotsman - March 12th, 2017 [March 12th, 2017]
- Seychelles Tourism promotes fishing at Italian fair - eTurboNews.com - eTurboNews - April 8th, 2017 [April 8th, 2017]
- Blackwater founder held secret meeting to establish Trump-Putin back channel - The Boston Globe - April 8th, 2017 [April 8th, 2017]
- Boost for KQ as open sky deal with Seychelles secured - The Star, Kenya - April 8th, 2017 [April 8th, 2017]
- Let's take lessons from Seychelles and divesify economy | The Star ... - The Star, Kenya - April 8th, 2017 [April 8th, 2017]
- Week in Pictures: Searcys' showcase and Seychelles: A Taste of Bliss - CIT Magazine - April 8th, 2017 [April 8th, 2017]
- Seychelles part 2: How to spend 3 days in the country - Independent Online - April 8th, 2017 [April 8th, 2017]
- Ethiopian Airlines route to Seychelles in December - Graphic Online - June 6th, 2017 [June 6th, 2017]
- Making the most of new opportunities: Seychelles attends inaugural ... - eTurboNews - June 6th, 2017 [June 6th, 2017]
- South Korean novelist, Young Ok Baek, joins Friends of Seychelles-Press circle - eTurboNews - June 6th, 2017 [June 6th, 2017]
- Inside the Seychelles' New Six Senses Zil Payson Island Resort - Robb Report - June 6th, 2017 [June 6th, 2017]
- A New Luxe Private Island Is Coming To The Seychelles - Forbes - June 6th, 2017 [June 6th, 2017]
- New committee set to run basketball in Seychelles - FIBA - June 9th, 2017 [June 9th, 2017]
- Escapades Seychelles 2017: Growing partnership reaping a successful harvest on the French market - eTurboNews - June 9th, 2017 [June 9th, 2017]
- Kiwis in flight: 7 reasons to put Seychelles on your bucket list - Stuff.co.nz - June 9th, 2017 [June 9th, 2017]
- Further growth in Seychelles' visitor arrivals from German-speaking market - eTurboNews - June 10th, 2017 [June 10th, 2017]
- Absolute Seychelles: New magazine providing insider's guide to this island destination - eTurboNews - June 10th, 2017 [June 10th, 2017]
- Libya dismantle Seychelles to send stern signal to Nigeria - Goal.com - June 10th, 2017 [June 10th, 2017]
- SADC approve R40m grants to Madagascar, Seychelles - Southern Times Africa - June 12th, 2017 [June 12th, 2017]
- Seychelles concludes 3rd edition of Eastern Europe Roadshow, providing added boost to growing market - eTurboNews - June 13th, 2017 [June 13th, 2017]
- Seychelles' annual Benelux roadshow going from strength to strength - eTurboNews - June 14th, 2017 [June 14th, 2017]
- Air Seychelles announces codeshare service to Beijing - eTurboNews - June 14th, 2017 [June 14th, 2017]
- Seychelles | Hetalia Archives | Fandom powered by Wikia - June 17th, 2017 [June 17th, 2017]
- Seychelles' MAIA Luxury Resort and Spa wins Best Island Hotel accolade by Prime Traveller Awards - eTurboNews - June 17th, 2017 [June 17th, 2017]
- Air Seychelles expands codeshare network to Beijing - Aviation Tribune - June 17th, 2017 [June 17th, 2017]
- Seychelles Attractions - What to See in Seychelles - June 17th, 2017 [June 17th, 2017]
- Seychelles as a destination of choice generates interest among travel trade at INDABA Exhibition in Durban - eTurboNews - June 21st, 2017 [June 21st, 2017]
- Seychelles sees 2017 GDP growth at 4.1 pct - finance minister - Times of India - June 21st, 2017 [June 21st, 2017]
- Better connections with North America's travel trade expected as Seychelles Tourism Board joins USTOA - eTurboNews - June 22nd, 2017 [June 22nd, 2017]
- Touchdown! Seychelles Tourism creates awareness at Durban rugby event - eTurboNews - June 23rd, 2017 [June 23rd, 2017]
- Aiming for greater visibility in South Korea, Seychelles emphasizes affordable holiday options at HanaTour 2017 - eTurboNews - June 23rd, 2017 [June 23rd, 2017]
- It's a wrap! Tropika Island of Treasure ends, boosting Seychelles tourism - eTurboNews - June 24th, 2017 [June 24th, 2017]
- Manchester United target Alvaro Morata goes snorkeling in the Seychelles as he relaxes on honeymoon with stunning ... - The Sun - June 24th, 2017 [June 24th, 2017]
- Germany leads the way in visitor arrivals to Seychelles - eTurboNews - June 24th, 2017 [June 24th, 2017]
- Seychelles | history - geography | Britannica.com - June 24th, 2017 [June 24th, 2017]
- 5 Interesting Things about Seychelles - Africa.com - June 26th, 2017 [June 26th, 2017]