CHALANE Moderate Tropical Storm-
3rd for Southern Indian Ocean Basin
Tracking to and fro Mascarene Islands.



The Tropical Depression located at about 170 km North-West of St. Brandon, has intensified and has showered the Island with 148 mm of Rainfall today. The system has been named as Moderate Tropical Storm CHALANE by the Mauritius Meteorological Services (MMS) today at 09h30 am today Thursday 24 December 2020. It is moving towards the West at 10 kph.

This Website Predicts that CHALANE is likely to track to-and-fro in the North-West of Mauritius until Madagascar and back towards Reunion Island. Mother Nature gave much indication, since yesterday evening about its formation and intense Rains associated with it (see picture of 23 December 2020).


Météo Madagascar has released its Special Bulletin this afternoon, mentioning a direct impact on Madagascar from the Northern Seacoast until the Centre:


A 15 heures locales, le centre de « CHALANE » est positionné à 861 Km à l’Est de Cap Est. Le vent moyen est de 75 Km/h avec des rafales plafonnant à 100 Km/h. Elle se déplace vers l’Ouest à 17 Km/h.


Pour les 03 prochains jours, on prévoit le maintien d’un Cap vers l’Ouest, amenant progressivement CHALANE à s’approcher du littoral Nord et Centre-Est où un impact direct est attendu dans la matinée du Dimanche 27 Décembre 2020.


Les populations des Régions de SAVA, ANALANJIROFO et les Districts de Toamasina I-II sont priées d’appliquer les prescriptions d’Alerte Verte.

Dès Samedi, la bande périphérique du système commencera à déverser des pluies sur les zones côtières. Elles seront abondantes dans la journée du Dimanche en liaison avec l’arrivée du système. Ainsi, les inondations sont à craindre sur les zones innondables concernées.

Les usagers maritimes allant d’Antsiranana à Mahanoro sont priés de ne plus s’aventurer en mer à compter de Samedi 26 Décembre 2020.


The Special Weather Bulletin issued by the MMS as follows:   


[[[Mauritius Meteorological Services

Tropical Weather Outlook issued at 10.30 hours on Thursday 24 December 2020.



Since last night convection near the centre of the tropical depression has picked up again and this morning, the system is slightly better organised. Barometric pressure and mean wind at St Brandon together with satellite imagery analysis confirm that the system has now reached the moderate tropical storm intensity. Therefore, it has been named CHALANE by the Mauritius Meteorological Services.


At 10.00 hours Moderate Tropical Chalane was centred at about 600 km to the north-northeast of Mauritius and is moving slowly westward towards the northeast of Madagascar. On this trajectory the storm does not represent a direct threat to Mauritius.


Weather at St Brandon

At 10.00 hours MTS Chalane was located at about 190 km almost to the north of St Brandon. The Islands are now under the direct influence of Chalane. The weather will be overcast with heavy thundery showers and gusts reaching 110 km/h. The windy and heavy showers will persist until tomorrow morning.Sea will be very rough.


Weather at Mauritius

On the above forecast track MTS Chalane will pass at more than 500 km to the north-northwest of Cap Malheureux early tomorrow morning.

The weather in Mauritius will be windy with gusts of the order of 85 km/h, blowing from the East. Clouds will cross the Island giving passing showers, becoming moderate at times mainly to the East, the South and over the Central Plateau. The showers will be more frequent tonight and tomorrow, Friday 25 December 2020.


The sea will be rough.

Next update of this bulletin will be tomorrow, Friday 25 December 2020 by mid-day.  


24 December 2020



Watch LIVE with MMS.


Keep Watch for updates.



PKANHYE.   23.05 hrs THURSDAY 24 DECEMBER 2020.

Satellite Animation