Thursday, May 20, 2021

Tauktae


Looks like a Van Gogh? - a painting sequel to the Starry Night perhaps? It's actually a projection of wind-speeds visualised by the big data cats at earth.nullschool. This particular one shows Cyclone Tauktae hitting Gujarat square in the jaw a few days ago.

Tauktae means "lizard" in Burmese and is just one of the random names chosen from an annual basket of options prepared by the met department - IMD. In this instance the name seemed rather appropriate - this cyclone has been constantly changing its colours like a chameleon while racing thousands of kilometres across the Arabian Sea.

According to a report: "Tauktae has been intensifying very rapidly. From a depression formed in the southeast Arabian Sea on May 14 morning, it strengthened into a very severe cyclonic storm -VSCS - by the early hours of May 16.. Any tropical cyclone requires energy to stay alive. This energy is typically obtained from warm water and humid air over the tropical ocean. Currently, sea water up to depths of 50 metres has been very warm, supplying ample energy to enable the intensification of Cyclone Tauktae."

And what a build-up of energy it has been! IMD seems surprised by the way in which this tropical cyclone intensified. On 16 May it swept past Kerala, damaging coastal roads and homes, taking two lives it its wake. The windspeed then climbed to 114 mph off the coast of Mumbai and but by the time it hit Diu in Gujarat it was roaring at over 180 kmph. The lives lost in this section was the highest - over 80 oil-rig workers employed by the ONGC are reported dead or missing.

For an event unfolding about 2000 km away, this cyclone has had a surprisingly strong impact in the Delhi area as well. Yesterday was the most unusual summer day.  At a time of the year when the day temperatures hover around 45C with hot dry wind blowing in from the Thar desert, turning the city into an oven, what we got instead was cool, refreshing rain. Not a passing shower that evaporated as soon as it it the ground but rains that went on and on, for a whole day and a night. For the first time in 70 years, temperatures hit a record low of 23.8C for the month of May.

This came as a bit of a relief to those who have been working our Covid hospitals, wearing stuffy all day. The Covid Second Wave also seems to have eased in North India with a sharp fall in infections and increased availability of spare hospital beds, oxygen cylinders and medicines.

Meanwhile, as Cyclone Takutae ebbs, another kind of second wave in brewing on the eastern side, next to the Andaman Islands. This one is called Cyclone Yaas and let us hope the Bay of Bengal has less energy to spare for feeding another super cyclone!

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LINKS & REFERENCES

- https://mausam.imd.gov.in/imd_latest/contents/cyclone.php

- https://www.indiatoday.in/cities/delhi/story/delhi-records-coldest-may-cyclone-tauktae-cause-heavy-rainfall-1804625-2021-05-20

- https://indianexpress.com/article/explained/explained-in-cyclone-tauktae-a-continuing-new-trend-from-the-arabian-sea-7317913/

- https://indianexpress.com/article/india/cyclone-tauktae-live-tracking-gujarat-maharashtra-7319493/

- https://www.downtoearth.org.in/news/environment/tall-waves-lash-west-coast-as-cyclone-tauktae-dashes-to-make-landfall-in-gujarat-76945

- https://www.financialexpress.com/lifestyle/science/cyclone-taukte-live-updates-taukte-extremely-severe-cyclonic-storm-imd-issues-alert-impact-on-mumbai-gujarat/2253205/

- https://indianexpress.com/article/india/cyclone-yaas-west-bengal-odisha-7321599/

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