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  • ଓଡ଼ିଆରେ ପଢନ୍ତୁ
Sanjeev Kumar Patro

News Highlights

  • 100-175mm rain will pour down in the districts of Gajapati, Ganjam, Puri, Jagatsinghpur.
  • Khordha, Cuttack, Nayagarh, Jajpur, Balasore, Bhadrak, Mayurbhanj, Keonjhar etc will record rainfall in the range of 90-100 mm per 24 hours

Odisha may stare at the Cyclone Titli moments. The latest model parameters have dropped this big hint.

Even as the weather tonight is partly cloudy to cloudy over the Andaman Sea and South Bay of Bengal,  the satellite maps hint at the formation of the low pressure area over the south Andaman sea tomorrow.

It will be formed around the night hours on Nov 30, because, the trigger factor of the current tropical disturbance is now in the south China Sea and will cross over the Gulf of Thailand to enter into the Andaman seas by the night hours tomorrow. The wind shear in the south Andaman sea is between 15 - 17.5 knots, which is very supportive for the formation of the system.

The Initial Report

As per the consensus model data, the low pressure system over the south Andaman sea will be triggered by a tropical disturbance called 94W currently located in the south China sea and is moving in a west direction towards the Gulf of Thailand. (see the image below)

Tropical Disturbance Nearing Gulf of ThailandTropical Disturbance Nearing Gulf of Thailand

The ACCESS G3 data shows the low pressure area will develop over the south Andaman sea (near the Nicobar Islands) by around 11:30 pm on Tuesday. The ECMWF and ACCESS predict the system to first move in a west direction to reach the south Bay of Bengal.

The Lopar will develop into a well-marked system by the early morning hours of December 2 (Thursday). And in the next 24 hours, the system will intensify into a depression.

Post the formation of depression, the system is predicted to chart a northwest direction. The system will further intensify into a cyclonic storm by Dec 3. Tracking the northwest direction, the cyclonic storm will veer very close to the coasts of East Godavari district by the early morning hours of December 4 (Saturday).

The Landfall Place

A look at the model parameters and track data of the likely cyclonic system does bring to memory - the cyclone Titli. Though the predicted track by INCOIS, NCEP-GFS, ECMWF and ACCESS G3 indicates that the cyclonic storm will make landfall between Kalingapatnam and Puri, it is very likely that the cyclone will make landfall in Andhra Pradesh coasts very close to Gopalpur. The landfall, as per the current weather parameters, will take place by noon hours on Saturday (Dec 4).

Like the very severe cyclone Titli, this upcoming cyclonic storm's first fury will be felt in the Gajapati district. The system then curve and move over the Odisha landscape to reach West Bengal. The forecasts show the weakened system to lay centred over West Bengal on December 6.

However, the system will not intensify into a severe cyclone. The wind speed of the likely system will hover around 80km/hr. And the central pressure will hover between 990-1000mb, though NCEP GFS predict the central pressure to fall to around 980.

This shows Odisha will be pounded by rain and hounded by gusty winds during Dec 4 and 5. However, high wind shear over Odisha will rapidly weaken the system, the forecasts added.

Rain and Wind In Odisha

As per the predictions, 100-175mm rain will pour down in the districts of Gajapati, Ganjam, Puri, Jagatsinghpur. And in other coastal districts like Khordha, Cuttack, Nayagarh, Jajpur, Balasore, Bhadrak, Mayurbhanj, Keonjhar etc will record rainfall in the range of 90-100 mm per 24 hours. The rest of Odisha districts will record rainfall in the range of  20-45 mm per 24 hours between Dec 4 and 5.

While the districts of northern Andhra Pradesh, close to Odisha, Ganjam, parts of Gajapati are predicted to record a wind speed of around 70km/hr. In the rest of the coastal districts, the wind speed will be in the range of 50-60km/hr.

Capital Impact

The State Capital Bhubaneswar may record nearly 200 mm rain on December 4. And The wind speed forecast is in the range of 30-60km/hr.

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