Odisha Update | 2021 | may20 | Cyclone Yaas: Odisha Govt Lists Out Priority Action Plan To Tackle The Storm| Cyclone Update |

  • The intensity of Cyclone Yaas is not clear as different weather forecasting models are suggesting different pictures.
  • Cyclone Yaas may hit Odisha-Bengal coast around May 26, say weather agencies

Odisha government on Thursday said that a slew of measures is already up for immediate implementation by various departments on a priority basis in view of the development of a cyclonic storm in Bay of Bengal.

The Cyclone Yaas weather system is likely to hit the eastern or the Coromandel coast of the country on the evening of May 26, the India Meteorological Department said in its tropical cyclone outlook.”

The Cyclone Yaas weather system is likely to hit the eastern or the Coromandel coast of the country on the evening of May 26, the India Meteorological Department said in its tropical cyclone outlook.”

Even as the countdown to season’s first low pressure in Bay of Bengal has begun, satellite images show low and medium clouds with weak to moderate convection intensity in the north Bay..

But clouds having intense to very intense convection have been spotted in the south BoB.

As per model data, these high convective clouds when reaches the east central BoB, the favourable conditions there will then shape up as cyclonic circulation on May 22, which will further steam up to become a low pressure area on May 23.

As per the direction of the Chief Minister, preparations are in full swing for the cyclone at the State and the district level. A draft plan has been made to mobilise emergency rescue and disaster management troops like Fire, ODRAF and NDRF at strategic points but the final execution will be done as soon as we get clear information on the cyclone.

Cyclone Yaas

Directions have been issued to keep flood and cyclone shelters in readiness. Panchayati Raj and Water Resources department has been asked to make necessary preparations to ensure an unhindered drinking water supply and plan to pre-position water tankers wherever necessary to help people during the aftermath of the cyclone.

The Energy Department has been notified to keep manpower resources on alert and equipment on standby. PW department has been entrusted to work out a detailed plan for clearing of roads, tree cutting and other associated restoration works. 

The SRC has asked the Animal and Fisheries department to create awareness in coastal belts to prevent entry of fishermen into the sea during the period mentioned by the India Meteorological Department. Similarly, efforts will also be taken to ensure safe return of fishermen still in deep sea. 

The sea surface temperature is hot enough to provide the latent heat to developing storm.Data with IMD puts the current SST at 30-31 deg C.

  • It says there is a positive upper level divergence. This is very significant as such a condition will give a boost to cyclone genesis by helping the air mass to rise up.
  • The vertical wind shear is moderate.
  • A positive vorticity withvertical extension up to 200HPA observed.

In the backdrop of such congenial factors, the met agencies worldwide, including IMD, forecast brewing up of a cyclonic storm in Bay.

Why IMD Says Cyclone Yaas Will Come Knocking Odisha – West Bengal Way?

The country’s ace cyclone prediction agency said so going by the location of the low pressure area that is to take shape on the evening of May 22.

Since cyclones always chart a northwest track, Odisha and West Bengal come on its way, the data suggests.

Moreover, the model data of IMD, IITM CGEPS (MME), US-GSF,; ECMWF suggest that the system will initially move in north direction, only tolater chart the north west route – the route where Odisha landmass figures prominently.

As per Regional Specialised Metrological Centre. (RSMC), New Delhi, the apex cyclone warning centre in South Asia, there is a convergence among top numerical Models like IMD-GFS, US-GFS, ECMWF etc that this developing cyclonic system will chart it’s track in the north west direction.

Cyclone Yaas Intensity

The weather models of ECMWF, US-GFS etc, which IMD follows have put the central low pressure of the system at around 960 mb – which means the intensity of the cyclone will be a notch higher than Bulbul ( central pressure 976mb)

Cyclone Yaas Landfall Forecast

Weather men say the landfall place of cyclone Yaas depends on its direction of movement.

Though IMD till date has only hinted that the system will move towards Odisha and West Bengal coast, the models (ECMWF, GFS), which found mentioned in the latest RSMC bulletin, have predicted that going by the north west movement of the system, it is very likely that Cyclone Yaas will make landfall between Kendrapada and Balasore on the night of May 26

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