Madagascar: Tropical Storm Bingiza

Madagascar: tropical storm bingiza 1
Image courtesy meteo france

Tropical Storm Bingiza has turned and made landfall once more in Madagascar. The current advisory from La Reunion Rsmc is as follows:

A moderate tropical storm 5, Bingiza.

  1. Position as of 2011/02/17 at 0600 UTC : within 20 NM radius of point 20.9S / 44.0E
  2. Movement: South 9 KT
  3. Dvorak analysis: 3.0/3.0 /D  0.5/6 H
  4. Central Pressure: 990 HPA
  5. Max average wind speed: (10 MN) : 40 KT radius of maximum winds (RMW) : 25 KM
  6. Extension of winds by quadrants (KM):
    1. 28 KT       NE:       SE:       SO: 180   NO: 370
    2. 34 KT       NE:       SE:       SO: 110   NO: 250
  7. First closed isobare (Pressure / Average Diam): 1004 HPA / 1100 KM
  8. Vertical extension of cyclone circulation: medium

Forecasts:

12H: 2011/02/17 18 UTC: 21.6S/44.0E, MAX WIND=035KT , OVERLAND.
24H: 2011/02/18 06 UTC: 22.5S/44.6E, MAX WIND=025KT , OVERLAND.
36H: 2011/02/18 18 UTC: 23.8S/45.0E, MAX WIND=025KT , OVERLAND.
48H: 2011/02/19 06 UTC: 25.3S/45.2E, MAX WIND=025KT , OVERLAND.
60H: 2011/02/19 18 UTC: 26.2S/44.7E, MAX WIND=030KT , SUBTROPICAL.
72H: 2011/02/20 06 UTC: 27.3S/44.8E, MAX WIND=035KT , SUBTROPICAL.

Longer range outlook:

96H:  21/02/2011 06 UTC: 28.7S/46.3E, MAX WIND=035KT , SUBTROPICAL.
120H: 22/02/2011 06 UTC: 32.8S/49.4E, MAX WIND=035KT , EXTRATROPICAL.

Additional information:

The system has rapidly intensified on a Southward track over sea. A very ill-definied eye is visible on Vis and IR imagery. Convection is concentrated very near to the centre on the Mozambique channel edge and in the North-Western part of the system. Bingiza is making landfall in the Northern vicinity of Andranopasy and its reintensification should have a very short duration with a South-South Eastward track overland.

In fact, NWP models concur on this track for the next 48 hours with a North-North-Westerly steering flow generated by the near-equatorial ridge. Associated rains should be heavy in South-Western Madagascar. Remnants of Bingiza should come back over water South of Madagascar near Ste-Marie Cape on Saturday, track temporarily South-Westward on the subtropical ridge and dip down again South-South-Eastward towards a mid-latitude trough with a subtropical and an extratropical structure.


In This Story: Madagascar

Madagascar, officially the Republic of Madagascar, and previously known as the Malagasy Republic, is an island country in the Indian Ocean, approximately 400 kilometres off the coast of East Africa. At 592,800 square kilometres Madagascar is the world’s second-largest island country.

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