Overall Green alert Tropical Cyclone for CHALANE-20
in Mozambique, Zimbabwe, Madagascar, Botswana

Impact

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

Meteorological source GFS
Exposed countries
Exposed population No people in Category 1 or higher
Maximum wind speed 61 km/h
Maximum storm surge 0.3 m (29 Dec 19:30 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
GFS Current 61 km/h 0.3 m 17 mm 0.5
GFS Overall 148 km/h 1.1 m 492 mm 0.5

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

Wind

148 km/h

No people by wind speeds of Tropical Storm strength or above



Wind exposed population

No exposed population (in Tropical Storm or higher) based on the bulletin of 27 Dec 2020 12:00 UTC

See TC classification SSHS


Wind Impact Timeline

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


Alert 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 47 - - - - - - -
GREEN 2 25 Dec 2020 00:00 50 - - - - - - -
GREEN 3 25 Dec 2020 06:00 50 - - - - - - -
GREEN 4 25 Dec 2020 12:00 50 - - - - - - -
GREEN 5 25 Dec 2020 18:00 50 - - - - - - -
GREEN 6 26 Dec 2020 00:00 54 - - - - - - -
GREEN 7 26 Dec 2020 06:00 68 - - - - - - -
GREEN 8 26 Dec 2020 12:00 76 - - - - - - -
GREEN 9 26 Dec 2020 18:00 76 - - - - - - -
GREEN 10 27 Dec 2020 00:00 58 - - - - - - -
GREEN 11 27 Dec 2020 06:00 54 - - - - - - -
GREEN 12 27 Dec 2020 12:00 61 - - - - - - -




Impact estimation for the next 72h





Rain exposed population

Estimations based on the bulletin of 27 Dec 2020 12:00 UTC
LevelCountryPopulation 
100-250 mmTanzania, Mozambique, Madagascar1139125
+
Tanzania12076 
Mozambique23993 
Madagascar1103056 
50-100 mmTanzania, Seychelles, Zambia, Democratic Republic of the Congo, Malawi, Mozambique, Madagascar, Angola20000042
+
Tanzania1817962 
Seychelles404 
Zambia4098022 
Democratic Republic of the Congo1041198 
Malawi375418 
Mozambique1593119 
Madagascar11069957 
Angola3962 

Rain Impact Timeline

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


Alert 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 13 - - - - - - -
Blue 2 25 Dec 2020 00:00 14 - - - - - - -
Blue 3 25 Dec 2020 06:00 14 - - - - - - -
Blue 4 25 Dec 2020 12:00 14 - - - - - - -
Blue 5 25 Dec 2020 18:00 14 - - - - - - -
Blue 6 26 Dec 2020 00:00 15 - - - - - - -
Blue 7 26 Dec 2020 06:00 19 - - - - - - -
Blue 8 26 Dec 2020 12:00 21 - - - - - - -
Blue 9 26 Dec 2020 18:00 21 - - - - - - -
Blue 10 27 Dec 2020 00:00 16 - - - - - - -
Blue 11 27 Dec 2020 06:00 15 - - - - - - -
Blue 12 27 Dec 2020 12:00 215 1.1 million
- - - - Tanzania, Seychelles, Zambia, Democratic Republic of the Congo, Malawi, Mozambique, Madagascar, Angola




Impact estimation for the next 72h

StormSurge

0.3 m

The maximum Storm surge height is  0.3m in Joannisse, Mozambique. This height is estimated for 29 Dec 2020 19:30 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.

Calculation based on the bulletin of 27 Dec 2020 12:00 UTC
Alert Date (UTC) Name Country Storm surge height (m)
29 Dec 2020 19:30 Joannisse Mozambique  0.3
29 Dec 2020 19:30 Bela Vista Mozambique  0.3
29 Dec 2020 19:30 Maziba Mozambique  0.3
29 Dec 2020 19:30 Aiai Mozambique  0.3
29 Dec 2020 19:30 Machavene Mozambique  0.3
29 Dec 2020 19:30 Cimbene Mozambique  0.3
29 Dec 2020 19:30 Canhamba Mozambique  0.2
28 Dec 2020 03:45 Manakalana Madagascar  0.2
28 Dec 2020 03:45 Soanierana Ivongo Madagascar  0.2
28 Dec 2020 03:45 Andrangazaha Madagascar  0.2
28 Dec 2020 03:45 Fandrarazana Madagascar  0.2
27 Dec 2020 18:30 Msindaji Tanzania  0.2
27 Dec 2020 18:30 Mchungu Tanzania  0.2
27 Dec 2020 18:30 Nyambati Tanzania  0.2
27 Dec 2020 18:30 Salale Tanzania  0.2
27 Dec 2020 18:30 Kiombani Tanzania  0.2
28 Dec 2020 04:00 Ambodifototra Madagascar  0.2
28 Dec 2020 04:00 Lonkintsy Madagascar  0.2
28 Dec 2020 04:00 Lokintsy Madagascar  0.2
28 Dec 2020 04:00 Lohatrozona Madagascar  0.2
28 Dec 2020 09:30 Voloina Madagascar  0.2
28 Dec 2020 09:30 Manambia Madagascar  0.2
28 Dec 2020 09:30 Anantoraka Madagascar  0.2
28 Dec 2020 09:30 Maroantsetra Madagascar  0.2
28 Dec 2020 09:30 Andranofotsy Madagascar  0.2
28 Dec 2020 09:30 Rantabe Madagascar  0.2
29 Dec 2020 19:30 Catembe Mozambique  0.2
29 Dec 2020 19:30 Maputo Mozambique  0.2
28 Dec 2020 11:30 Analanampotsy Madagascar  0.2
28 Dec 2020 11:30 Ampasimbe Madagascar  0.2
28 Dec 2020 09:30 Mahalevona Madagascar  0.2
28 Dec 2020 09:45 Ambanizana Madagascar  0.2
28 Dec 2020 09:45 Benjana Madagascar  0.2
30 Dec 2020 05:30 Antunes Mozambique  0.2
30 Dec 2020 05:30 Chamba Mozambique  0.2
30 Dec 2020 05:30 Beira Mozambique  0.2
30 Dec 2020 05:30 Damiao Mozambique  0.2
28 Dec 2020 04:00 Tanambe Madagascar  0.2
28 Dec 2020 04:00 Ambodiatafa Madagascar  0.2
28 Dec 2020 04:00 Vohilava Madagascar  0.2
30 Dec 2020 10:45 Kamendriky Madagascar  0.2
30 Dec 2020 10:45 Tsilambana Madagascar  0.2
28 Dec 2020 09:30 Maintimbato Madagascar  0.2
28 Dec 2020 04:00 Mahavanona Madagascar  0.2
28 Dec 2020 04:00 Ampasina Madagascar  0.2
28 Dec 2020 04:00 Antakobola Madagascar  0.2
28 Dec 2020 07:30 Mbweni Tanzania  0.2
28 Dec 2020 07:30 Doriya Tanzania  0.2
28 Dec 2020 07:30 Konduchi Tanzania  0.2
28 Dec 2020 23:15 Manica Mozambique  0.2
28 Dec 2020 08:45 Ambanhe Mozambique  0.2
28 Dec 2020 08:45 Ampara Mozambique  0.2
28 Dec 2020 08:45 Nova Sofala Mozambique  0.2
29 Dec 2020 23:15 Anjiabe Madagascar  0.2
29 Dec 2020 23:15 Antsahampano Madagascar  0.2
29 Dec 2020 23:15 Ambohimena Madagascar  0.2
29 Dec 2020 23:15 Ambolikapika Madagascar  0.2
29 Dec 2020 23:15 Ambato Madagascar  0.2
29 Dec 2020 23:15 Ambaliha Madagascar  0.2
29 Dec 2020 23:15 Antanamazava Madagascar  0.2
28 Dec 2020 04:00 Manompana Madagascar  0.2
29 Dec 2020 14:30 Mkadini Tanzania  0.2
29 Dec 2020 14:30 Kigongoni Tanzania  0.2
29 Dec 2020 14:30 Bagamoyo Tanzania  0.2
27 Dec 2020 12:00 Voalavo Madagascar  0.2
30 Dec 2020 11:00 Manampatra Madagascar  0.2
30 Dec 2020 11:00 Vilamatsa Madagascar  0.2
30 Dec 2020 11:00 Ankerefo Madagascar  0.2
30 Dec 2020 10:45 Bevatry Madagascar  0.2
28 Dec 2020 09:30 Tampolo Madagascar  0.2
29 Dec 2020 14:15 Sadani Tanzania  0.2
29 Dec 2020 17:30 Vila Luisa Mozambique  0.2
29 Dec 2020 17:30 D'lhelo Mozambique  0.2
29 Dec 2020 22:30 Nosy Faly Madagascar  0.2
28 Dec 2020 09:30 Antalavia Madagascar  0.2
30 Dec 2020 12:00 Nhangau Mozambique  0.1
30 Dec 2020 12:00 Chofandicho Mozambique  0.1
30 Dec 2020 10:45 Ambalabao Madagascar  0.1
28 Dec 2020 08:30 Metambanhe Mozambique  0.1
28 Dec 2020 08:30 Chiloane Mozambique  0.1
27 Dec 2020 21:45 Marovato Madagascar  0.1
27 Dec 2020 21:45 Ampasibe Madagascar  0.1
27 Dec 2020 21:45 Analalava Madagascar  0.1
27 Dec 2020 21:45 Androlavy Madagascar  0.1
27 Dec 2020 21:45 Ananalava Madagascar  0.1
29 Dec 2020 14:00 Magawa Tanzania  0.1
30 Dec 2020 00:45 Chimuaza Mozambique  0.1
30 Dec 2020 00:45 Vila do Chinde Mozambique  0.1
30 Dec 2020 00:45 Nhamatamanga Mozambique  0.1
30 Dec 2020 00:45 Mulia Mozambique  0.1
30 Dec 2020 12:00 Panaca Mozambique  0.1
29 Dec 2020 20:30 Maconharumo Mozambique  0.1
28 Dec 2020 21:15 Machesse Mozambique  0.1
28 Dec 2020 21:45 Tama Mozambique  0.1
28 Dec 2020 21:45 Jonja Mozambique  0.1
28 Dec 2020 21:45 Bingue Mozambique  0.1
28 Dec 2020 21:45 Rupia Mozambique  0.1
30 Dec 2020 05:00 Divinhe Mozambique  0.1
28 Dec 2020 09:15 Fananehana Madagascar  0.1
29 Dec 2020 14:15 Mkwaja Tanzania  0.1
29 Dec 2020 14:15 Kilindoni Tanzania  0.1
27 Dec 2020 12:00 Ankerefo Madagascar  0.1
27 Dec 2020 12:00 Marofototra Madagascar  0.1
29 Dec 2020 14:00 Zanzibar Tanzania  0.1
29 Dec 2020 14:00 Kiembi Samaki Tanzania  0.1
29 Dec 2020 14:00 Bet-el-Mali Tanzania  0.1
29 Dec 2020 14:00 Mchamba Wima Tanzania  0.1
29 Dec 2020 22:15 Ambatomainty Madagascar  0.1
29 Dec 2020 22:15 Manehoko Madagascar  0.1
29 Dec 2020 22:15 Antanimandry Madagascar  0.1
29 Dec 2020 14:00 Bumbwini Tanzania  0.1
29 Dec 2020 14:00 Mwera Tanzania  0.1
29 Dec 2020 14:00 Mkarangama Tanzania  0.1
29 Dec 2020 14:00 Chole Tanzania  0.1
29 Dec 2020 14:00 Donge Tanzania  0.1
29 Dec 2020 14:15 Kisiju Tanzania  0.1
30 Dec 2020 00:30 Amado Mozambique  0.1
27 Dec 2020 12:00 Belavenoka Madagascar  0.1
29 Dec 2020 22:15 Anjabe Madagascar  0.1
29 Dec 2020 22:15 Andranomena Madagascar  0.1
30 Dec 2020 00:45 Barra Mozambique  0.1
27 Dec 2020 19:45 Kawi Tanzania  0.1
27 Dec 2020 19:45 Msasani Tanzania  0.1
29 Dec 2020 22:30 Masokoamena Madagascar  0.1
29 Dec 2020 22:30 Katsepy Madagascar  0.1
29 Dec 2020 22:30 Majunga Madagascar  0.1
29 Dec 2020 22:30 Boanamary Madagascar  0.1
29 Dec 2020 22:30 Ampitilova Madagascar  0.1
29 Dec 2020 22:30 Moraharivo Madagascar  0.1
29 Dec 2020 22:30 Antsianitia Madagascar  0.1
29 Dec 2020 22:30 Ambondrombe Madagascar  0.1
27 Dec 2020 13:00 Fenerive Madagascar  0.1
29 Dec 2020 14:00 Mkokotoni Tanzania  0.1
29 Dec 2020 14:00 Dondo Tanzania  0.1
29 Dec 2020 14:00 Mpafu Tanzania  0.1
29 Dec 2020 14:00 Kipingwe Tanzania  0.1
29 Dec 2020 14:00 Kirongwe Tanzania  0.1
29 Dec 2020 14:00 Jimbo Tanzania  0.1
28 Dec 2020 22:00 Chichocane Mozambique  0.1
28 Dec 2020 22:00 Xetoquica Mozambique  0.1
28 Dec 2020 22:00 China Mozambique  0.1
28 Dec 2020 22:00 Mahoa Mozambique  0.1
28 Dec 2020 22:00 Fabiao Mozambique  0.1
28 Dec 2020 22:00 Uetela Mozambique  0.1
30 Dec 2020 00:00 Inhangulue Mozambique  0.1
30 Dec 2020 00:00 Mendozo Mozambique  0.1
30 Dec 2020 00:00 Magromane Mozambique  0.1
29 Dec 2020 14:00 Fumba Tanzania  0.1
29 Dec 2020 14:00 Kiechuru Tanzania  0.1
29 Dec 2020 13:30 Somanga Tanzania  0.1
29 Dec 2020 13:30 Matapatapa Tanzania  0.1
29 Dec 2020 13:30 Pombwe Tanzania  0.1
29 Dec 2020 13:30 Jaja Tanzania  0.1
29 Dec 2020 22:45 Andriana Madagascar  0.1
29 Dec 2020 22:45 Ambatoxavavy Madagascar  0.1
29 Dec 2020 22:45 Andrafia Madagascar  0.1
29 Dec 2020 22:00 Ambodibonara Madagascar  0.1
30 Dec 2020 10:15 Andranovoribe Madagascar  0.1
29 Dec 2020 14:00 Bwereu Tanzania  0.1
30 Dec 2020 10:30 Ambodiadabo Madagascar  0.1
27 Dec 2020 16:30 Anoromby Madagascar  0.1
28 Dec 2020 04:00 Rantranavona Madagascar  0.1
29 Dec 2020 14:00 Kibele Tanzania  0.1
30 Dec 2020 00:00 Tomodo Mozambique  0.1
28 Dec 2020 15:30 Vatobe Madagascar  0.1
29 Dec 2020 14:00 Dar es Salaam Tanzania  0.1
29 Dec 2020 14:00 Magogoni Tanzania  0.1
29 Dec 2020 13:45 Buuni Village Tanzania  0.1
30 Dec 2020 11:30 Ambato Madagascar  0.1
30 Dec 2020 11:30 Marovazha Madagascar  0.1
28 Dec 2020 15:30 Antanetilava Madagascar  0.1
28 Dec 2020 15:30 Manambato Madagascar  0.1
29 Dec 2020 14:00 Banda Kuu Tanzania  0.1
29 Dec 2020 14:00 Abdala Mozambique  0.1
29 Dec 2020 14:00 Maate Mozambique  0.1
29 Dec 2020 14:00 Quissanga Mozambique  0.1
29 Dec 2020 14:00 Pangome Mozambique  0.1
29 Dec 2020 14:00 Arimba Mozambique  0.1
29 Dec 2020 14:00 Ibo Mozambique  0.1
29 Dec 2020 14:00 Tavari Mozambique  0.1
28 Dec 2020 19:15 Laisse Mozambique  0.1
28 Dec 2020 19:15 Dinguiduane Mozambique  0.1
28 Dec 2020 19:15 Natalia Mozambique  0.1
28 Dec 2020 19:15 Inhassoro Mozambique  0.1
29 Dec 2020 13:45 Mipande Mozambique  0.1
29 Dec 2020 13:45 Foque Mozambique  0.1
29 Dec 2020 14:00 Mkuuni Tanzania  0.1
29 Dec 2020 14:00 Gazija Tanzania  0.1
29 Dec 2020 14:00 Gulioni Tanzania  0.1
29 Dec 2020 22:45 Dzamandzar Madagascar  0.1
29 Dec 2020 13:45 Mbwera Tanzania  0.1
29 Dec 2020 14:15 Uzi Tanzania  0.1
29 Dec 2020 14:15 Mapopwe Tanzania  0.1
29 Dec 2020 14:15 Chwaka Tanzania  0.1
29 Dec 2020 14:15 Kitogani Tanzania  0.1
29 Dec 2020 22:30 Tanambao Madagascar  0.1
29 Dec 2020 13:45 Sakura Tanzania  0.1
29 Dec 2020 13:45 Handeru Tanzania  0.1
29 Dec 2020 13:45 Ushongo Mabaoni Tanzania  0.1
30 Dec 2020 11:15 Ambatojoby Madagascar  0.1
30 Dec 2020 11:15 Mahabo Madagascar  0.1
30 Dec 2020 11:15 Andramy Madagascar  0.1
30 Dec 2020 11:15 Marotaola Madagascar  0.1
30 Dec 2020 11:45 Ankoakala Madagascar  0.1
29 Dec 2020 22:30 Ampombilava Madagascar  0.1
30 Dec 2020 00:30 Ocone Mozambique  0.1
27 Dec 2020 23:15 Andranopasy Madagascar  0.1
27 Dec 2020 23:15 Tsiboka Madagascar  0.1
27 Dec 2020 23:15 Ankirijibe Madagascar  0.1
27 Dec 2020 23:15 Ankoba Madagascar  0.1
27 Dec 2020 16:45 Linchica Mozambique  0.1
27 Dec 2020 16:30 Manambolosy Madagascar  0.1
30 Dec 2020 11:15 Andamoty Madagascar  0.1
30 Dec 2020 11:15 Madirobe Madagascar  0.1
30 Dec 2020 11:15 Ampapamena Madagascar  0.1
29 Dec 2020 13:30 Marere Mozambique  0.1
29 Dec 2020 13:30 Lucete Mozambique  0.1
29 Dec 2020 13:30 Libambai Mozambique  0.1
29 Dec 2020 19:45 Quelimane do Sal Mozambique  0.1
27 Dec 2020 12:15 Anjajavy Madagascar  0.1
27 Dec 2020 12:15 Ankaranakatra Madagascar  0.1
27 Dec 2020 12:15 Marovoha Madagascar  0.1
27 Dec 2020 12:15 Ampitily Madagascar  0.1
27 Dec 2020 12:15 Ambalatsingy Madagascar  0.1
27 Dec 2020 12:15 Ankinganomby Madagascar  0.1
27 Dec 2020 12:15 Singalana Madagascar  0.1
27 Dec 2020 12:15 Antaribao Madagascar  0.1
28 Dec 2020 20:30 Antohgo Madagascar  0.1
29 Dec 2020 13:45 Kijini Tanzania  0.1
29 Dec 2020 13:45 Mkunguni Tanzania  0.1
29 Dec 2020 13:45 Ukongoroni Tanzania  0.1
27 Dec 2020 20:15 Antseranandaka Madagascar  0.1
30 Dec 2020 11:45 Onara Madagascar  0.1
29 Dec 2020 22:15 Andranofotsy Madagascar  0.1
29 Dec 2020 14:00 Paje Tanzania  0.1
29 Dec 2020 14:00 Kipandoni Tanzania  0.1
29 Dec 2020 14:00 Hiari Tanzania  0.1
29 Dec 2020 14:00 Tongoni Tanzania  0.1
28 Dec 2020 21:30 Vilanculos Mozambique  0.1
30 Dec 2020 11:45 Ankazobe Madagascar  0.1
30 Dec 2020 11:45 Manampea Madagascar  0.1
30 Dec 2020 11:45 Antsafy Madagascar  0.1
27 Dec 2020 12:15 Antonibe Madagascar  0.1
27 Dec 2020 12:15 Antantiloky Madagascar  0.1
27 Dec 2020 12:15 Anjiajia Madagascar  0.1
27 Dec 2020 12:15 Ambodibonara Madagascar  0.1
28 Dec 2020 20:45 Maguemba Mozambique  0.1
28 Dec 2020 20:45 Macashale Mozambique  0.1
28 Dec 2020 20:45 Macanzele Mozambique  0.1
28 Dec 2020 19:30 Jo Mozambique  0.1
28 Dec 2020 19:30 Bartolomeu Dias Mozambique  0.1
27 Dec 2020 14:30 Soahazo Madagascar  0.1
27 Dec 2020 14:30 Moravano Madagascar  0.1
27 Dec 2020 14:30 Andramasay Madagascar  0.1
29 Dec 2020 13:30 Kovkovu Tanzania  0.1
29 Dec 2020 13:30 Pangani Tanzania  0.1
29 Dec 2020 13:30 Vumbi Tanzania  0.1
27 Dec 2020 16:00 Afonso Mozambique  0.1
27 Dec 2020 16:00 Catine Mozambique  0.1
27 Dec 2020 16:00 Caulino Mozambique  0.1
29 Dec 2020 13:30 Ankomany Madagascar  0.1
29 Dec 2020 13:30 Marosakoa Madagascar  0.1
29 Dec 2020 13:30 Mariarano Madagascar  0.1
29 Dec 2020 13:30 Berafia Madagascar  0.1
29 Dec 2020 13:30 Tsianinkiro Madagascar  0.1
27 Dec 2020 12:15 Tsaratanana Madagascar  0.1
29 Dec 2020 13:15 Kolekole Tanzania  0.1
29 Dec 2020 13:15 Mvuni Tanzania  0.1
29 Dec 2020 13:15 Kiriwani Tanzania  0.1
29 Dec 2020 13:15 Tanga Tanzania  0.1
29 Dec 2020 13:30 Vila de Mocimboa da Praia Mozambique  0.1
29 Dec 2020 14:15 Mahabo Madagascar  0.1
29 Dec 2020 14:15 Tsinjorano Madagascar  0.1
29 Dec 2020 14:15 Ampasitsilavitra Madagascar  0.1
29 Dec 2020 13:30 Kilale Tanzania  0.1
30 Dec 2020 11:45 Ambatomilahy Madagascar  0.1
30 Dec 2020 11:45 Ankirijibe Madagascar  0.1
27 Dec 2020 13:30 Chululu Mozambique  0.1
27 Dec 2020 13:30 Caramaca Mozambique  0.1
27 Dec 2020 13:30 Mocareja Mozambique  0.1
29 Dec 2020 23:45 Mutiba Mozambique  0.1