Overall Green alert Tropical Cyclone for CHALANE-20
in Mozambique, Zimbabwe, Madagascar, Botswana
25 Dec 2020 06 UTC
click on to select bulletin time
Impact Single TC
Impact based on all weather systems in the area

Impact

Tropical Cyclone CHALANE-20 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source HWRF
Exposed countries Madagascar
Exposed population No people in Category 1 or higher
Maximum wind speed 72 km/h
Maximum storm surge 0.3 m (25 Dec 10:15 UTC)
Vulnerability High (Madagascar)

GDACS Score

GDACS alert score for Tropical Cyclones is 0.5 (GREEN Alert), 1.5 (ORANGE Alert), 2.5 (RED Alert)
For more info on GDACS alert score click here.
  Wind Storm surge Rainfall GDACS score
HWRF Current 72 km/h 0.3 m 20 mm 0.5
HWRF Overall 155 km/h 1.3 m 451 mm 0.5

Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)

TOP

Wind

155 km/h

Up to 10 thousand can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 25 Dec 2020 06:00 UTC
CategoryCountryPopulation 
Tropical StormMadagascar11,618 

See TC classification SSHS


Wind Impact Timeline

people affected <=10000
10000< people affected <=100000
people affected >100000


Alert N° Date (UTC) Max Winds (km/h) Pop in Cat. 1 or higher TS Cat. 1 Cat. 2 Cat. 3 Cat. 4 Cat. 5 Countries
GREEN 1 24 Dec 2020 18:00 0 - - - - - - -
GREEN 2 25 Dec 2020 00:00 79 - - - - - - -
GREEN 3 25 Dec 2020 06:00 86 -
- - - - - Madagascar
Download:





Impact estimation for the next 72h
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Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 25 Dec 2020 06:00 UTC
LevelCountryPopulation 
250-500 mmMadagascar701,868 
100-250 mmMadagascar4,790,988 
50-100 mmMadagascar2,785,108 

Rain Impact Timeline

people affected <=10000
10000< people affected <=100000
people affected >100000


Alert N° Date (UTC) Max Rainfall (mm) Pop >100mm or higher 50-100 100-250 250-500 500-750 750-1000 >1000 Countries
Blue 1 24 Dec 2020 18:00 0 - - - - - - -
Blue 2 25 Dec 2020 00:00 22 - - - - - - -
Blue 3 25 Dec 2020 06:00 488 5.5 million
- - - Madagascar




Impact estimation for the next 72h
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StormSurge

0.3 m

The maximum Storm surge height is  0.3m in Manakalana, Madagascar. This height is estimated for 25 Dec 2020 10:15 UTC .

The JRC has developed an experimental global storm surge model, which is run after each advisory issued by the regional tropical cyclone centres. The calculations are published about 20 minutes after a new advisory is detected by GDACS. The calculations identify the populated places affected by storm surge up to three days in advance, using the forecasted track. When forecasts change, the associated storm surge changes too and alert levels may go up or down. All links, data, statistics and maps refer to the latest available calculation. If the calculation for the last advisory is not completed, the latest available calculation is shown.

Storm Surge Exposed population - AoIs


Storm Surge Exposed locations

Calculation based on the bulletin of 25 Dec 2020 06:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
25 Dec 2020 10:15 Manakalana Madagascar  0.3
25 Dec 2020 10:15 Soanierana Ivongo Madagascar  0.3
25 Dec 2020 10:15 Andrangazaha Madagascar  0.3
25 Dec 2020 10:15 Fandrarazana Madagascar  0.3
25 Dec 2020 07:00 Mkadini Tanzania  0.3
25 Dec 2020 07:00 Kigongoni Tanzania  0.3
25 Dec 2020 07:00 Bagamoyo Tanzania  0.3
25 Dec 2020 06:45 Sadani Tanzania  0.3
25 Dec 2020 06:45 Msindaji Tanzania  0.3
25 Dec 2020 06:45 Mchungu Tanzania  0.3
25 Dec 2020 06:45 Nyambati Tanzania  0.3
25 Dec 2020 06:45 Salale Tanzania  0.3
25 Dec 2020 06:45 Kiombani Tanzania  0.3
25 Dec 2020 10:15 Ambodifototra Madagascar  0.3
25 Dec 2020 06:45 Mahavanona Madagascar  0.3
25 Dec 2020 06:45 Ampasina Madagascar  0.3
25 Dec 2020 06:45 Antakobola Madagascar  0.3
25 Dec 2020 06:45 Analanampotsy Madagascar  0.3
25 Dec 2020 06:45 Ampasimbe Madagascar  0.3
25 Dec 2020 10:15 Lonkintsy Madagascar  0.2
25 Dec 2020 10:15 Lokintsy Madagascar  0.2
25 Dec 2020 10:15 Lohatrozona Madagascar  0.2
25 Dec 2020 10:15 Vohilava Madagascar  0.2
25 Dec 2020 10:15 Tanambe Madagascar  0.2
25 Dec 2020 10:15 Ambodiatafa Madagascar  0.2
25 Dec 2020 06:15 Mwera Tanzania  0.2
25 Dec 2020 06:15 Kilindoni Tanzania  0.2
25 Dec 2020 06:15 Mkarangama Tanzania  0.2
25 Dec 2020 06:15 Chole Tanzania  0.2
25 Dec 2020 09:15 Voloina Madagascar  0.2
25 Dec 2020 09:15 Manambia Madagascar  0.2
25 Dec 2020 09:15 Anantoraka Madagascar  0.2
25 Dec 2020 09:15 Maroantsetra Madagascar  0.2
25 Dec 2020 09:15 Andranofotsy Madagascar  0.2
25 Dec 2020 06:15 Magawa Tanzania  0.2
25 Dec 2020 07:00 Mbweni Tanzania  0.2
25 Dec 2020 07:00 Doriya Tanzania  0.2
25 Dec 2020 10:30 Manompana Madagascar  0.2
25 Dec 2020 09:15 Mahalevona Madagascar  0.2
25 Dec 2020 09:15 Rantabe Madagascar  0.2
25 Dec 2020 06:15 Kisiju Tanzania  0.2
25 Dec 2020 06:00 Kipingwe Tanzania  0.2
25 Dec 2020 06:00 Kirongwe Tanzania  0.2
25 Dec 2020 06:00 Jimbo Tanzania  0.2
25 Dec 2020 12:00 Ambanhe Mozambique  0.2
25 Dec 2020 06:00 Somanga Tanzania  0.2
25 Dec 2020 06:00 Matapatapa Tanzania  0.2
25 Dec 2020 06:00 Pombwe Tanzania  0.2
25 Dec 2020 06:00 Jaja Tanzania  0.2
25 Dec 2020 06:30 Zanzibar Tanzania  0.2
25 Dec 2020 06:30 Kiembi Samaki Tanzania  0.2
25 Dec 2020 06:30 Bet-el-Mali Tanzania  0.2
25 Dec 2020 06:30 Mchamba Wima Tanzania  0.2
25 Dec 2020 06:30 Fumba Tanzania  0.2
25 Dec 2020 06:00 Kiechuru Tanzania  0.2
25 Dec 2020 09:15 Vila Luisa Mozambique  0.2
25 Dec 2020 09:15 D'lhelo Mozambique  0.2
25 Dec 2020 06:15 Bumbwini Tanzania  0.2
25 Dec 2020 06:15 Donge Tanzania  0.2
25 Dec 2020 11:15 Divinhe Mozambique  0.2
25 Dec 2020 11:15 Chiloane Mozambique  0.2
25 Dec 2020 11:30 Metambanhe Mozambique  0.2
25 Dec 2020 09:15 Maintimbato Madagascar  0.2
25 Dec 2020 06:30 Mkwaja Tanzania  0.2
25 Dec 2020 12:00 Ampara Mozambique  0.2
25 Dec 2020 09:45 Fenerive Madagascar  0.2
25 Dec 2020 06:00 Mbwera Tanzania  0.2
25 Dec 2020 06:30 Kibele Tanzania  0.2
25 Dec 2020 09:15 Ambanizana Madagascar  0.2
25 Dec 2020 09:15 Benjana Madagascar  0.2
25 Dec 2020 10:30 Antanetilava Madagascar  0.2
25 Dec 2020 10:30 Vatobe Madagascar  0.2
25 Dec 2020 10:30 Manambato Madagascar  0.2
25 Dec 2020 06:00 Dondo Tanzania  0.2
25 Dec 2020 06:00 Mpafu Tanzania  0.2
25 Dec 2020 06:00 Buuni Village Tanzania  0.2
25 Dec 2020 12:00 Nova Sofala Mozambique  0.1
25 Dec 2020 06:15 Mkokotoni Tanzania  0.1
25 Dec 2020 09:45 Antsikafoka Madagascar  0.1
25 Dec 2020 09:45 Mahambo Madagascar  0.1
25 Dec 2020 12:00 Antunes Mozambique  0.1
25 Dec 2020 12:00 Chamba Mozambique  0.1
25 Dec 2020 12:00 Beira Mozambique  0.1
25 Dec 2020 12:00 Damiao Mozambique  0.1
25 Dec 2020 12:00 Manica Mozambique  0.1
25 Dec 2020 06:45 Nosy Faly Madagascar  0.1
25 Dec 2020 06:45 Ambato Madagascar  0.1
25 Dec 2020 06:45 Antanamazava Madagascar  0.1
25 Dec 2020 09:30 Namahoaka Madagascar  0.1
25 Dec 2020 09:30 Mahatsara Madagascar  0.1
25 Dec 2020 11:15 Amado Mozambique  0.1
25 Dec 2020 11:15 Chimuaza Mozambique  0.1
25 Dec 2020 11:15 Vila do Chinde Mozambique  0.1
25 Dec 2020 06:15 Meronvi Mozambique  0.1
25 Dec 2020 06:15 Quissengue Mozambique  0.1
25 Dec 2020 06:15 Bawala Mozambique  0.1
25 Dec 2020 06:15 Olumbe Mozambique  0.1
25 Dec 2020 11:30 Ampondrabe Madagascar  0.1
25 Dec 2020 11:30 Lokia Madagascar  0.1
25 Dec 2020 11:30 Andringahely Madagascar  0.1
25 Dec 2020 11:45 Nhangau Mozambique  0.1
25 Dec 2020 11:45 Chofandicho Mozambique  0.1
25 Dec 2020 06:45 Uzi Tanzania  0.1
25 Dec 2020 06:45 Mapopwe Tanzania  0.1
25 Dec 2020 06:45 Chwaka Tanzania  0.1
25 Dec 2020 06:45 Kitogani Tanzania  0.1
25 Dec 2020 06:15 Abdala Mozambique  0.1
25 Dec 2020 06:15 Maate Mozambique  0.1
25 Dec 2020 06:15 Quissanga Mozambique  0.1
25 Dec 2020 06:15 Pangome Mozambique  0.1
25 Dec 2020 06:15 Arimba Mozambique  0.1
25 Dec 2020 06:15 Ibo Mozambique  0.1
25 Dec 2020 06:15 Tavari Mozambique  0.1
25 Dec 2020 09:15 Tampolo Madagascar  0.1
25 Dec 2020 08:45 Beula Mozambique  0.1
25 Dec 2020 08:45 Morrumbene Mozambique  0.1
25 Dec 2020 08:45 Chicoque Mozambique  0.1
25 Dec 2020 08:45 Mabsil Mozambique  0.1
25 Dec 2020 08:45 Marivate Mozambique  0.1
25 Dec 2020 08:45 Miramar Mozambique  0.1
25 Dec 2020 07:30 Anjiabe Madagascar  0.1
25 Dec 2020 07:30 Antsahampano Madagascar  0.1
25 Dec 2020 07:30 Ambohimena Madagascar  0.1
25 Dec 2020 07:30 Ambolikapika Madagascar  0.1
25 Dec 2020 07:30 Ambaliha Madagascar  0.1
25 Dec 2020 07:00 Inhangulue Mozambique  0.1
25 Dec 2020 07:00 Mendozo Mozambique  0.1
25 Dec 2020 07:00 Magromane Mozambique  0.1
25 Dec 2020 06:15 Bwereu Tanzania  0.1
25 Dec 2020 06:45 Ambatomainty Madagascar  0.1
25 Dec 2020 06:15 Maganja Mozambique  0.1
25 Dec 2020 11:45 Joannisse Mozambique  0.1
25 Dec 2020 11:45 Bela Vista Mozambique  0.1
25 Dec 2020 11:45 Maziba Mozambique  0.1
25 Dec 2020 11:45 Aiai Mozambique  0.1
25 Dec 2020 11:45 Machavene Mozambique  0.1
25 Dec 2020 11:45 Cimbene Mozambique  0.1
25 Dec 2020 12:00 Ratsianarana Madagascar  0.1
25 Dec 2020 12:00 Ambodivato Madagascar  0.1
25 Dec 2020 12:00 Ambohitralanana Madagascar  0.1
25 Dec 2020 06:45 Manehoko Madagascar  0.1
25 Dec 2020 06:45 Antanimandry Madagascar  0.1
25 Dec 2020 12:00 Ankirijibe Madagascar  0.1
25 Dec 2020 12:00 Ankazobe Madagascar  0.1
25 Dec 2020 12:00 Manampea Madagascar  0.1
25 Dec 2020 12:00 Antsafy Madagascar  0.1
25 Dec 2020 07:30 Soahazo Madagascar  0.1
25 Dec 2020 07:30 Moravano Madagascar  0.1
25 Dec 2020 07:30 Andramasay Madagascar  0.1
25 Dec 2020 09:15 Antalavia Madagascar  0.1
25 Dec 2020 11:45 Tambohorano Madagascar  0.1
25 Dec 2020 11:45 Ambatomilahy Madagascar  0.1
25 Dec 2020 10:30 Antanambe Madagascar  0.1
25 Dec 2020 06:30 Kijini Tanzania  0.1
25 Dec 2020 06:30 Mkunguni Tanzania  0.1
25 Dec 2020 06:30 Ukongoroni Tanzania  0.1
25 Dec 2020 11:45 Manomba Madagascar  0.1
25 Dec 2020 11:45 Belailay Madagascar  0.1
25 Dec 2020 11:45 Ankatrafay Madagascar  0.1
25 Dec 2020 11:45 Antandrokomby Madagascar  0.1
25 Dec 2020 07:00 Kawi Tanzania  0.1
25 Dec 2020 07:00 Konduchi Tanzania  0.1
25 Dec 2020 07:00 Dar es Salaam Tanzania  0.1
25 Dec 2020 07:00 Msasani Tanzania  0.1
25 Dec 2020 07:00 Magogoni Tanzania  0.1
25 Dec 2020 06:30 Kamendriky Madagascar  0.1
25 Dec 2020 06:30 Tsilambana Madagascar  0.1
25 Dec 2020 06:30 Anjabe Madagascar  0.1
25 Dec 2020 06:30 Andranomena Madagascar  0.1
25 Dec 2020 12:00 Onara Madagascar  0.1
25 Dec 2020 12:00 Ankoakala Madagascar  0.1
25 Dec 2020 09:30 Vohitramposina Madagascar  0.1
25 Dec 2020 09:30 Ampitabe Madagascar  0.1
25 Dec 2020 09:30 Amboditafara Madagascar  0.1
25 Dec 2020 09:30 Kalomalala Madagascar  0.1
25 Dec 2020 06:45 Ocone Mozambique  0.1
25 Dec 2020 06:45 Quelimane do Sal Mozambique  0.1
25 Dec 2020 11:15 Tomodo Mozambique  0.1
25 Dec 2020 12:00 Ambato Madagascar  0.1
25 Dec 2020 06:00 Banda Kuu Tanzania  0.1
25 Dec 2020 06:00 Mkuuni Tanzania  0.1
25 Dec 2020 06:00 Gazija Tanzania  0.1
25 Dec 2020 06:00 Gulioni Tanzania  0.1
25 Dec 2020 09:15 Ambila-Lemaitso Madagascar  0.1
25 Dec 2020 09:15 Vavony Madagascar  0.1
25 Dec 2020 09:15 Ampanotoamaizina Madagascar  0.1
25 Dec 2020 06:45 Paje Tanzania  0.1
25 Dec 2020 06:45 Kipandoni Tanzania  0.1
25 Dec 2020 06:45 Hiari Tanzania  0.1
25 Dec 2020 06:45 Tongoni Tanzania  0.1
25 Dec 2020 09:30 Fananehana Madagascar  0.1
25 Dec 2020 06:30 Bevatry Madagascar  0.1
25 Dec 2020 12:00 Marovazha Madagascar  0.1
25 Dec 2020 12:00 Belavenoka Madagascar  0.1
25 Dec 2020 07:15 Ambozaka Madagascar  0.1
25 Dec 2020 07:15 Antanambao Samaka Madagascar  0.1
25 Dec 2020 10:00 Manambolosy Madagascar  0.1
25 Dec 2020 10:00 Anoromby Madagascar  0.1
25 Dec 2020 06:15 Ambodibonara Madagascar  0.1
25 Dec 2020 10:00 Linchica Mozambique  0.1
25 Dec 2020 06:45 Mutiba Mozambique  0.1
25 Dec 2020 09:15 Maconharumo Mozambique  0.1
25 Dec 2020 09:00 Maguemba Mozambique  0.1
25 Dec 2020 09:00 Macashale Mozambique  0.1
25 Dec 2020 09:00 Macanzele Mozambique  0.1
25 Dec 2020 10:00 Fahambahy Madagascar  0.1
25 Dec 2020 10:00 Tampolo Madagascar  0.1
25 Dec 2020 10:00 Andilamboahangy Madagascar  0.1
25 Dec 2020 10:00 Mananara Madagascar  0.1
25 Dec 2020 08:30 Antsisikala Madagascar  0.1
25 Dec 2020 08:30 Andranovondronina Madagascar  0.1
25 Dec 2020 08:30 Lotsohina Madagascar  0.1
25 Dec 2020 08:30 Betsimiranja Madagascar  0.1
25 Dec 2020 08:30 Ambatonjanahary Madagascar  0.1
25 Dec 2020 08:30 Ambinanililabe Madagascar  0.1
25 Dec 2020 08:30 Anjiabe Madagascar  0.1
25 Dec 2020 08:30 Amoronjia-Orangea Madagascar  0.1
25 Dec 2020 10:30 Ambatofitarafana Madagascar  0.1
25 Dec 2020 10:30 Ambodimanga Madagascar  0.1
25 Dec 2020 10:30 Ivontaka Madagascar  0.1
25 Dec 2020 10:30 Seranambe Madagascar  0.1