Overall Green alert Tropical Cyclone for CHALANE-20
in Mozambique, Zimbabwe, Madagascar, Botswana
25 Dec 2020 18 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 GFS
Exposed countries
Exposed population No people in Category 1 or higher
Maximum wind speed 50 km/h
Maximum storm surge 0.4 m (25 Dec 19:15 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
GFS Current 50 km/h 0.4 m 14 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)

TOP

Wind

148 km/h

No people by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

No exposed population (in Tropical Storm or higher) based on the bulletin of 25 Dec 2020 18:00 UTC

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 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 61 - - - - - - -
Download:





Impact estimation for the next 72h
TOP

Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 25 Dec 2020 18:00 UTC
LevelCountryPopulation 
250-500 mmMadagascar17,364 
100-250 mmTanzania, Zambia, Madagascar, Botswana3,756,508
+
Tanzania18,370 
Zambia13,890 
Madagascar3,723,897 
Botswana351 
50-100 mmTanzania, Democratic Republic of the Congo, Zambia, Malawi, Mozambique, Angola, Madagascar, Zimbabwe, Namibia, Botswana13,671,418
+
Tanzania2,375,108 
Democratic Republic of the Congo342,263 
Zambia2,429,790 
Malawi607,366 
Mozambique461,187 
Angola3,537 
Madagascar7,435,104 
Zimbabwe5,141 
Namibia1,385 
Botswana10,537 

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 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 18:00 280 3.8 million
- - - Tanzania, Democratic Republic of the Congo, Zambia, Malawi, Mozambique, Angola, Madagascar, Zimbabwe, Namibia, Botswana




Impact estimation for the next 72h
TOP

StormSurge

0.4 m

The maximum Storm surge height is  0.4m in Manakalana, Madagascar. This height is estimated for 25 Dec 2020 19:15 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 18:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
25 Dec 2020 19:15 Manakalana Madagascar  0.4
25 Dec 2020 19:15 Soanierana Ivongo Madagascar  0.4
25 Dec 2020 19:15 Andrangazaha Madagascar  0.4
25 Dec 2020 19:15 Fandrarazana Madagascar  0.4
26 Dec 2020 00:00 Antunes Mozambique  0.4
26 Dec 2020 00:00 Chamba Mozambique  0.4
26 Dec 2020 00:00 Beira Mozambique  0.4
26 Dec 2020 00:00 Damiao Mozambique  0.4
25 Dec 2020 19:15 Ambodifototra Madagascar  0.4
25 Dec 2020 23:00 Manica Mozambique  0.3
25 Dec 2020 22:45 Mahavanona Madagascar  0.3
25 Dec 2020 22:45 Ampasina Madagascar  0.3
25 Dec 2020 22:45 Antakobola Madagascar  0.3
25 Dec 2020 22:45 Analanampotsy Madagascar  0.3
25 Dec 2020 22:45 Ampasimbe Madagascar  0.3
25 Dec 2020 19:15 Lonkintsy Madagascar  0.3
25 Dec 2020 19:15 Lokintsy Madagascar  0.3
25 Dec 2020 19:15 Lohatrozona Madagascar  0.3
25 Dec 2020 22:30 Ambanhe Mozambique  0.3
25 Dec 2020 22:30 Ampara Mozambique  0.3
25 Dec 2020 22:30 Nova Sofala Mozambique  0.3
25 Dec 2020 19:15 Vohilava Madagascar  0.3
25 Dec 2020 23:00 Tanambe Madagascar  0.3
25 Dec 2020 23:00 Ambodiatafa Madagascar  0.3
25 Dec 2020 22:45 Fenerive Madagascar  0.3
25 Dec 2020 23:00 Manompana Madagascar  0.3
25 Dec 2020 21:45 Voalavo Madagascar  0.3
25 Dec 2020 22:45 Nhangau Mozambique  0.2
25 Dec 2020 22:45 Chofandicho Mozambique  0.2
25 Dec 2020 22:00 Ankerefo Madagascar  0.2
25 Dec 2020 22:00 Marofototra Madagascar  0.2
25 Dec 2020 21:00 Mkadini Tanzania  0.2
25 Dec 2020 21:00 Kigongoni Tanzania  0.2
25 Dec 2020 21:00 Bagamoyo Tanzania  0.2
25 Dec 2020 22:00 Belavenoka Madagascar  0.2
25 Dec 2020 20:30 Laisse Mozambique  0.2
25 Dec 2020 20:30 Dinguiduane Mozambique  0.2
25 Dec 2020 20:30 Natalia Mozambique  0.2
25 Dec 2020 20:30 Inhassoro Mozambique  0.2
25 Dec 2020 22:30 Panaca Mozambique  0.2
25 Dec 2020 22:00 Ambato Madagascar  0.2
25 Dec 2020 22:00 Marovazha Madagascar  0.2
25 Dec 2020 20:00 Kamendriky Madagascar  0.2
25 Dec 2020 20:00 Tsilambana Madagascar  0.2
25 Dec 2020 23:00 Vatobe Madagascar  0.2
25 Dec 2020 22:00 Metambanhe Mozambique  0.2
25 Dec 2020 22:00 Chiloane Mozambique  0.2
25 Dec 2020 23:00 Antanetilava Madagascar  0.2
25 Dec 2020 23:00 Manambato Madagascar  0.2
25 Dec 2020 22:45 Antsikafoka Madagascar  0.2
25 Dec 2020 21:45 Ankoakala Madagascar  0.2
25 Dec 2020 19:45 Bevatry Madagascar  0.2
25 Dec 2020 22:00 Onara Madagascar  0.2
25 Dec 2020 20:45 Sadani Tanzania  0.2
25 Dec 2020 23:00 Divinhe Mozambique  0.2
25 Dec 2020 22:45 Mahambo Madagascar  0.2
25 Dec 2020 21:30 Manampatra Madagascar  0.2
25 Dec 2020 21:30 Vilamatsa Madagascar  0.2
25 Dec 2020 22:15 Tama Mozambique  0.2
25 Dec 2020 22:15 Jonja Mozambique  0.2
25 Dec 2020 22:00 Ankazobe Madagascar  0.2
25 Dec 2020 22:00 Manampea Madagascar  0.2
25 Dec 2020 22:00 Antsafy Madagascar  0.2
26 Dec 2020 00:00 Msindaji Tanzania  0.2
26 Dec 2020 00:00 Mchungu Tanzania  0.2
26 Dec 2020 00:00 Nyambati Tanzania  0.2
26 Dec 2020 00:00 Salale Tanzania  0.2
26 Dec 2020 00:00 Kiombani Tanzania  0.2
25 Dec 2020 20:15 Voloina Madagascar  0.2
25 Dec 2020 20:15 Manambia Madagascar  0.2
25 Dec 2020 20:15 Anantoraka Madagascar  0.2
25 Dec 2020 20:15 Maroantsetra Madagascar  0.2
25 Dec 2020 20:15 Andranofotsy Madagascar  0.2
25 Dec 2020 20:30 Jo Mozambique  0.2
25 Dec 2020 20:30 Bartolomeu Dias Mozambique  0.2
25 Dec 2020 20:00 Masokoamena Madagascar  0.2
25 Dec 2020 20:00 Katsepy Madagascar  0.2
25 Dec 2020 20:00 Majunga Madagascar  0.2
25 Dec 2020 20:00 Boanamary Madagascar  0.2
25 Dec 2020 20:00 Ampitilova Madagascar  0.2
25 Dec 2020 20:00 Moraharivo Madagascar  0.2
25 Dec 2020 20:00 Antsianitia Madagascar  0.2
25 Dec 2020 20:00 Ambondrombe Madagascar  0.2
25 Dec 2020 20:15 Afonso Mozambique  0.2
25 Dec 2020 20:15 Catine Mozambique  0.2
25 Dec 2020 20:15 Caulino Mozambique  0.2
25 Dec 2020 21:15 Joannisse Mozambique  0.2
25 Dec 2020 21:15 Bela Vista Mozambique  0.2
25 Dec 2020 21:15 Maziba Mozambique  0.2
25 Dec 2020 21:15 Aiai Mozambique  0.2
25 Dec 2020 21:15 Machavene Mozambique  0.2
25 Dec 2020 21:15 Cimbene Mozambique  0.2
25 Dec 2020 21:00 Ankerefo Madagascar  0.2
25 Dec 2020 22:00 Ankirijibe Madagascar  0.2
25 Dec 2020 19:45 Marovato Madagascar  0.2
25 Dec 2020 19:45 Ampasibe Madagascar  0.2
25 Dec 2020 19:45 Analalava Madagascar  0.2
25 Dec 2020 19:45 Androlavy Madagascar  0.2
25 Dec 2020 19:45 Ananalava Madagascar  0.2
25 Dec 2020 22:00 Ambatomilahy Madagascar  0.2
25 Dec 2020 20:15 Rantabe Madagascar  0.2
25 Dec 2020 20:00 Maintimbato Madagascar  0.2
25 Dec 2020 20:45 Soahazo Madagascar  0.2
25 Dec 2020 20:45 Moravano Madagascar  0.2
25 Dec 2020 20:45 Andramasay Madagascar  0.2
25 Dec 2020 23:00 Antanambe Madagascar  0.2
25 Dec 2020 20:30 Mahalevona Madagascar  0.2
25 Dec 2020 20:30 Ambanizana Madagascar  0.2
25 Dec 2020 20:30 Benjana Madagascar  0.2
25 Dec 2020 20:30 Inhangulue Mozambique  0.2
25 Dec 2020 20:30 Mendozo Mozambique  0.2
25 Dec 2020 20:30 Magromane Mozambique  0.2
25 Dec 2020 21:00 Catembe Mozambique  0.1
25 Dec 2020 21:00 Maputo Mozambique  0.1
25 Dec 2020 21:15 Canhamba Mozambique  0.1
25 Dec 2020 23:00 Namahoaka Madagascar  0.1
25 Dec 2020 20:45 Ambozaka Madagascar  0.1
25 Dec 2020 20:45 Tomodo Mozambique  0.1
25 Dec 2020 19:30 Ambalabao Madagascar  0.1
25 Dec 2020 23:45 Ampasimpilily Madagascar  0.1
25 Dec 2020 20:00 Tampolo Madagascar  0.1
25 Dec 2020 20:00 Asneira Mozambique  0.1
25 Dec 2020 20:00 Fananehana Madagascar  0.1
25 Dec 2020 19:45 Andranovoribe Madagascar  0.1
25 Dec 2020 22:15 Kilwa Kivinje Tanzania  0.1
25 Dec 2020 22:15 Mtanga Tanzania  0.1
25 Dec 2020 20:00 Antalavia Madagascar  0.1
25 Dec 2020 18:00 Anjiabe Madagascar  0.1
25 Dec 2020 18:00 Antsahampano Madagascar  0.1
25 Dec 2020 18:00 Ambohimena Madagascar  0.1
25 Dec 2020 18:00 Ambolikapika Madagascar  0.1
25 Dec 2020 18:00 Ambato Madagascar  0.1
25 Dec 2020 18:00 Ambaliha Madagascar  0.1
25 Dec 2020 18:00 Antanamazava Madagascar  0.1
25 Dec 2020 20:45 Antanambao Samaka Madagascar  0.1
25 Dec 2020 23:15 Magawa Tanzania  0.1
25 Dec 2020 21:00 Antohgo Madagascar  0.1
25 Dec 2020 23:15 Ratsianarana Madagascar  0.1
25 Dec 2020 23:15 Ambodivato Madagascar  0.1
25 Dec 2020 23:15 Ambohitralanana Madagascar  0.1
25 Dec 2020 19:45 Ambodiadabo Madagascar  0.1
25 Dec 2020 20:45 Zanzibar Tanzania  0.1
25 Dec 2020 20:45 Kiembi Samaki Tanzania  0.1
25 Dec 2020 20:30 Bet-el-Mali Tanzania  0.1
25 Dec 2020 22:15 Bingue Mozambique  0.1
25 Dec 2020 20:30 Mchamba Wima Tanzania  0.1
25 Dec 2020 23:45 Manakara Madagascar  0.1
25 Dec 2020 23:45 Loharano Madagascar  0.1
25 Dec 2020 23:00 Ambodimanga Madagascar  0.1
25 Dec 2020 23:45 Mwera Tanzania  0.1
25 Dec 2020 23:45 Kilindoni Tanzania  0.1
25 Dec 2020 23:45 Mkarangama Tanzania  0.1
25 Dec 2020 23:45 Chole Tanzania  0.1
25 Dec 2020 22:45 Vila Luisa Mozambique  0.1
25 Dec 2020 22:45 D'lhelo Mozambique  0.1
25 Dec 2020 22:30 Rupia Mozambique  0.1
25 Dec 2020 22:30 Machesse Mozambique  0.1
25 Dec 2020 20:30 Ankoadavo Madagascar  0.1
25 Dec 2020 20:00 Rantranavona Madagascar  0.1
25 Dec 2020 21:45 Chichocane Mozambique  0.1
25 Dec 2020 21:45 Xetoquica Mozambique  0.1
25 Dec 2020 21:45 China Mozambique  0.1
25 Dec 2020 21:45 Mahoa Mozambique  0.1
25 Dec 2020 21:45 Fabiao Mozambique  0.1
25 Dec 2020 21:45 Uetela Mozambique  0.1
25 Dec 2020 20:30 Bumbwini Tanzania  0.1
25 Dec 2020 20:30 Donge Tanzania  0.1
25 Dec 2020 21:45 Tambohorano Madagascar  0.1
25 Dec 2020 20:00 Anoromby Madagascar  0.1
25 Dec 2020 23:30 Mucojo Mozambique  0.1
25 Dec 2020 23:30 Ingoane Mozambique  0.1
25 Dec 2020 23:30 Foque Mozambique  0.1
25 Dec 2020 23:30 Pangane Mozambique  0.1
25 Dec 2020 22:30 Mahatsara Madagascar  0.1
25 Dec 2020 20:45 Mkwaja Tanzania  0.1
25 Dec 2020 23:30 Somanga Tanzania  0.1
25 Dec 2020 23:30 Matapatapa Tanzania  0.1
25 Dec 2020 23:30 Pombwe Tanzania  0.1
25 Dec 2020 23:30 Jaja Tanzania  0.1
25 Dec 2020 22:45 Mbweni Tanzania  0.1
25 Dec 2020 22:45 Doriya Tanzania  0.1
25 Dec 2020 22:45 Konduchi Tanzania  0.1
25 Dec 2020 20:30 Fumba Tanzania  0.1
25 Dec 2020 21:00 Manomba Madagascar  0.1
25 Dec 2020 21:00 Belailay Madagascar  0.1
25 Dec 2020 21:00 Ankatrafay Madagascar  0.1
25 Dec 2020 21:00 Antandrokomby Madagascar  0.1
25 Dec 2020 20:45 Andopitaly Madagascar  0.1
25 Dec 2020 23:45 Kisiju Tanzania  0.1
25 Dec 2020 18:00 Dzamandzar Madagascar  0.1
25 Dec 2020 18:00 Andriana Madagascar  0.1
25 Dec 2020 18:00 Ambatoxavavy Madagascar  0.1
25 Dec 2020 18:00 Andrafia Madagascar  0.1
25 Dec 2020 18:00 Nosy Faly Madagascar  0.1
25 Dec 2020 19:45 Mariano Mozambique  0.1
25 Dec 2020 21:00 Appontement Madagascar  0.1
25 Dec 2020 19:45 Manambolosy Madagascar  0.1
25 Dec 2020 20:30 Ocone Mozambique  0.1
25 Dec 2020 20:30 Quelimane do Sal Mozambique  0.1
25 Dec 2020 19:45 Raraga Mozambique  0.1
25 Dec 2020 19:45 Metapa Mozambique  0.1
25 Dec 2020 19:45 Morrua Mozambique  0.1
25 Dec 2020 19:45 Carramali Mozambique  0.1
25 Dec 2020 20:00 Soahanina Madagascar  0.1
25 Dec 2020 22:30 Kovkovu Tanzania  0.1
25 Dec 2020 22:30 Pangani Tanzania  0.1
25 Dec 2020 22:30 Kolekole Tanzania  0.1
25 Dec 2020 22:30 Vumbi Tanzania  0.1
25 Dec 2020 22:30 Kilale Tanzania  0.1
25 Dec 2020 22:30 Kiriwani Tanzania  0.1
25 Dec 2020 20:30 Mkokotoni Tanzania  0.1
25 Dec 2020 19:15 Chimuaza Mozambique  0.1
25 Dec 2020 19:15 Vila do Chinde Mozambique  0.1
25 Dec 2020 19:15 Nhamatamanga Mozambique  0.1
25 Dec 2020 19:15 Mulia Mozambique  0.1
25 Dec 2020 18:00 Kawi Tanzania  0.1
25 Dec 2020 18:00 Msasani Tanzania  0.1
25 Dec 2020 20:00 Amado Mozambique  0.1
25 Dec 2020 23:00 Dondo Tanzania  0.1
25 Dec 2020 23:00 Mpafu Tanzania  0.1
25 Dec 2020 23:00 Buuni Village Tanzania  0.1
25 Dec 2020 22:30 Dar es Salaam Tanzania  0.1
25 Dec 2020 22:30 Magogoni Tanzania  0.1
25 Dec 2020 23:30 Manehoko Madagascar  0.1
25 Dec 2020 23:30 Antanimandry Madagascar  0.1
25 Dec 2020 23:30 Ambodibonara Madagascar  0.1
25 Dec 2020 23:30 Anjabe Madagascar  0.1
25 Dec 2020 23:30 Andranomena Madagascar  0.1
25 Dec 2020 20:45 Andamoty Madagascar  0.1
25 Dec 2020 20:45 Madirobe Madagascar  0.1
25 Dec 2020 20:45 Ampapamena Madagascar  0.1
25 Dec 2020 18:00 Antanifatsy Madagascar  0.1
25 Dec 2020 18:00 Mahatsaborimaika Madagascar  0.1
25 Dec 2020 18:00 Mangaoka Madagascar  0.1
25 Dec 2020 18:00 Ilomotro Madagascar  0.1
25 Dec 2020 18:00 Andranotsara Madagascar  0.1
25 Dec 2020 18:00 Antsisikala Madagascar  0.1
25 Dec 2020 18:00 Antsahalalina Madagascar  0.1
25 Dec 2020 20:45 Ankomany Madagascar  0.1
25 Dec 2020 20:45 Marosakoa Madagascar  0.1
25 Dec 2020 20:45 Mariarano Madagascar  0.1
25 Dec 2020 20:45 Berafia Madagascar  0.1
25 Dec 2020 20:45 Tsianinkiro Madagascar  0.1
25 Dec 2020 21:00 Kibele Tanzania  0.1
25 Dec 2020 21:00 Uzi Tanzania  0.1
25 Dec 2020 21:00 Mapopwe Tanzania  0.1
25 Dec 2020 21:00 Kitogani Tanzania  0.1
25 Dec 2020 21:00 Kijini Tanzania  0.1
25 Dec 2020 21:00 Mkunguni Tanzania  0.1
25 Dec 2020 21:00 Ukongoroni Tanzania  0.1
25 Dec 2020 21:00 Paje Tanzania  0.1
25 Dec 2020 21:00 Kipandoni Tanzania  0.1
25 Dec 2020 21:00 Hiari Tanzania  0.1
25 Dec 2020 21:00 Tongoni Tanzania  0.1
25 Dec 2020 21:00 Ampondrabe Madagascar  0.1
25 Dec 2020 21:00 Lokia Madagascar  0.1
25 Dec 2020 21:00 Andringahely Madagascar  0.1
25 Dec 2020 20:00 Ankilahila Madagascar  0.1
26 Dec 2020 00:00 Anjahamarina Madagascar  0.1
26 Dec 2020 00:00 Ambalabe Madagascar  0.1