Overall Green alert Tropical Cyclone for CHALANE-20
in Mozambique, Zimbabwe, Madagascar, Botswana
25 Dec 2020 00 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 0.3 m (25 Dec 01:15 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 0.3 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 00:00 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 61 - - - - - - -
Download:





Impact estimation for the next 72h
TOP

Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 25 Dec 2020 00:00 UTC
LevelCountryPopulation 
100-250 mmTanzania, Zambia, Democratic Republic of the Congo, Madagascar572,088
+
Tanzania40,054 
Democratic Republic of the Congo372 
Zambia46,083 
Madagascar485,579 
50-100 mmTanzania, Democratic Republic of the Congo, Zambia, Malawi, Mauritius, Mozambique, Angola, Madagascar, Zimbabwe, Botswana15,422,489
+
Tanzania5,741,069 
Democratic Republic of the Congo2,027,354 
Zambia3,916,313 
Malawi1,216,627 
Mauritius129 
Mozambique645,076 
Angola3,593 
Madagascar1,678,559 
Zimbabwe178,660 
Botswana15,109 

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 00:00 255 570 thousand
- - - - Tanzania, Democratic Republic of the Congo, Zambia, Malawi, Mauritius, Mozambique, Angola, Madagascar, Zimbabwe, Botswana




Impact estimation for the next 72h
TOP

StormSurge

0.3 m

The maximum Storm surge height is  0.3m in Mkadini, Tanzania. This height is estimated for 25 Dec 2020 01:15 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 00:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
25 Dec 2020 01:15 Mkadini Tanzania  0.3
25 Dec 2020 01:15 Kigongoni Tanzania  0.3
25 Dec 2020 01:15 Bagamoyo Tanzania  0.3
25 Dec 2020 04:15 Manakalana Madagascar  0.3
25 Dec 2020 04:15 Soanierana Ivongo Madagascar  0.3
25 Dec 2020 04:15 Andrangazaha Madagascar  0.3
25 Dec 2020 04:15 Fandrarazana Madagascar  0.3
25 Dec 2020 00:45 Sadani Tanzania  0.3
25 Dec 2020 01:00 Msindaji Tanzania  0.3
25 Dec 2020 01:00 Mchungu Tanzania  0.3
25 Dec 2020 01:00 Nyambati Tanzania  0.3
25 Dec 2020 01:00 Salale Tanzania  0.3
25 Dec 2020 01:00 Kiombani Tanzania  0.3
25 Dec 2020 04:15 Ambodifototra Madagascar  0.3
25 Dec 2020 01:00 Mahavanona Madagascar  0.2
25 Dec 2020 01:00 Ampasina Madagascar  0.2
25 Dec 2020 01:00 Antakobola Madagascar  0.2
25 Dec 2020 01:00 Analanampotsy Madagascar  0.2
25 Dec 2020 01:00 Ampasimbe Madagascar  0.2
25 Dec 2020 00:00 Mwera Tanzania  0.2
25 Dec 2020 00:00 Kilindoni Tanzania  0.2
25 Dec 2020 00:00 Mkarangama Tanzania  0.2
25 Dec 2020 00:00 Chole Tanzania  0.2
25 Dec 2020 04:15 Lonkintsy Madagascar  0.2
25 Dec 2020 04:15 Lokintsy Madagascar  0.2
25 Dec 2020 04:15 Lohatrozona Madagascar  0.2
25 Dec 2020 00:15 Magawa Tanzania  0.2
25 Dec 2020 01:00 Mbweni Tanzania  0.2
25 Dec 2020 01:00 Doriya Tanzania  0.2
25 Dec 2020 04:15 Vohilava Madagascar  0.2
25 Dec 2020 04:15 Tanambe Madagascar  0.2
25 Dec 2020 04:15 Ambodiatafa Madagascar  0.2
25 Dec 2020 03:15 Voloina Madagascar  0.2
25 Dec 2020 03:15 Manambia Madagascar  0.2
25 Dec 2020 03:15 Anantoraka Madagascar  0.2
25 Dec 2020 03:15 Maroantsetra Madagascar  0.2
25 Dec 2020 03:15 Andranofotsy Madagascar  0.2
25 Dec 2020 00:15 Kisiju Tanzania  0.2
25 Dec 2020 00:00 Somanga Tanzania  0.2
25 Dec 2020 00:00 Matapatapa Tanzania  0.2
25 Dec 2020 00:00 Pombwe Tanzania  0.2
25 Dec 2020 00:00 Jaja Tanzania  0.2
25 Dec 2020 00:30 Zanzibar Tanzania  0.2
25 Dec 2020 00:30 Kiembi Samaki Tanzania  0.2
25 Dec 2020 00:30 Bet-el-Mali Tanzania  0.2
25 Dec 2020 06:00 Ambanhe Mozambique  0.2
25 Dec 2020 00:00 Kipingwe Tanzania  0.2
25 Dec 2020 00:00 Kirongwe Tanzania  0.2
25 Dec 2020 00:00 Jimbo Tanzania  0.2
25 Dec 2020 03:15 Mahalevona Madagascar  0.2
25 Dec 2020 05:15 Divinhe Mozambique  0.2
25 Dec 2020 05:15 Chiloane Mozambique  0.2
25 Dec 2020 00:30 Mchamba Wima Tanzania  0.2
25 Dec 2020 00:30 Fumba Tanzania  0.2
25 Dec 2020 00:00 Kiechuru Tanzania  0.2
25 Dec 2020 03:15 Rantabe Madagascar  0.2
25 Dec 2020 04:30 Manompana Madagascar  0.2
25 Dec 2020 00:15 Bumbwini Tanzania  0.2
25 Dec 2020 00:15 Donge Tanzania  0.2
25 Dec 2020 00:00 Antunes Mozambique  0.2
25 Dec 2020 00:00 Chamba Mozambique  0.2
25 Dec 2020 00:00 Beira Mozambique  0.2
25 Dec 2020 00:00 Damiao Mozambique  0.2
25 Dec 2020 05:30 Metambanhe Mozambique  0.2
25 Dec 2020 00:30 Mkwaja Tanzania  0.2
25 Dec 2020 00:30 Kibele Tanzania  0.2
25 Dec 2020 00:00 Mbwera Tanzania  0.2
25 Dec 2020 00:15 Mkokotoni Tanzania  0.2
25 Dec 2020 03:00 Ambanizana Madagascar  0.2
25 Dec 2020 03:00 Benjana Madagascar  0.2
25 Dec 2020 00:00 Dondo Tanzania  0.2
25 Dec 2020 00:00 Mpafu Tanzania  0.2
25 Dec 2020 00:00 Buuni Village Tanzania  0.2
25 Dec 2020 06:00 Ampara Mozambique  0.2
25 Dec 2020 01:00 Fenerive Madagascar  0.1
25 Dec 2020 00:30 Kamendriky Madagascar  0.1
25 Dec 2020 00:30 Tsilambana Madagascar  0.1
25 Dec 2020 03:15 Maintimbato Madagascar  0.1
25 Dec 2020 06:00 Nova Sofala Mozambique  0.1
25 Dec 2020 01:00 Uzi Tanzania  0.1
25 Dec 2020 01:00 Mapopwe Tanzania  0.1
25 Dec 2020 01:00 Chwaka Tanzania  0.1
25 Dec 2020 01:00 Kitogani Tanzania  0.1
25 Dec 2020 00:00 Manica Mozambique  0.1
25 Dec 2020 00:30 Abdala Mozambique  0.1
25 Dec 2020 00:30 Maate Mozambique  0.1
25 Dec 2020 00:30 Quissanga Mozambique  0.1
25 Dec 2020 00:30 Pangome Mozambique  0.1
25 Dec 2020 00:30 Arimba Mozambique  0.1
25 Dec 2020 00:30 Ibo Mozambique  0.1
25 Dec 2020 00:30 Tavari Mozambique  0.1
25 Dec 2020 00:30 Bwereu Tanzania  0.1
25 Dec 2020 01:00 Kawi Tanzania  0.1
25 Dec 2020 01:00 Konduchi Tanzania  0.1
25 Dec 2020 01:00 Dar es Salaam Tanzania  0.1
25 Dec 2020 01:00 Msasani Tanzania  0.1
25 Dec 2020 01:00 Magogoni Tanzania  0.1
25 Dec 2020 04:30 Kijini Tanzania  0.1
25 Dec 2020 04:30 Mkunguni Tanzania  0.1
25 Dec 2020 04:30 Ukongoroni Tanzania  0.1
25 Dec 2020 04:30 Paje Tanzania  0.1
25 Dec 2020 04:30 Kipandoni Tanzania  0.1
25 Dec 2020 04:30 Hiari Tanzania  0.1
25 Dec 2020 04:30 Tongoni Tanzania  0.1
25 Dec 2020 03:30 Vila Luisa Mozambique  0.1
25 Dec 2020 03:30 D'lhelo Mozambique  0.1
25 Dec 2020 00:30 Bevatry Madagascar  0.1
25 Dec 2020 03:45 Antsikafoka Madagascar  0.1
25 Dec 2020 03:45 Mahambo Madagascar  0.1
25 Dec 2020 06:00 Ratsianarana Madagascar  0.1
25 Dec 2020 06:00 Ambodivato Madagascar  0.1
25 Dec 2020 06:00 Ambohitralanana Madagascar  0.1
25 Dec 2020 06:00 Joannisse Mozambique  0.1
25 Dec 2020 06:00 Bela Vista Mozambique  0.1
25 Dec 2020 06:00 Maziba Mozambique  0.1
25 Dec 2020 06:00 Aiai Mozambique  0.1
25 Dec 2020 06:00 Machavene Mozambique  0.1
25 Dec 2020 06:00 Cimbene Mozambique  0.1
25 Dec 2020 00:30 Meronvi Mozambique  0.1
25 Dec 2020 00:30 Quissengue Mozambique  0.1
25 Dec 2020 00:30 Bawala Mozambique  0.1
25 Dec 2020 00:30 Olumbe Mozambique  0.1
25 Dec 2020 03:15 Tampolo Madagascar  0.1
25 Dec 2020 03:30 Namahoaka Madagascar  0.1
25 Dec 2020 06:00 Manomba Madagascar  0.1
25 Dec 2020 06:00 Belailay Madagascar  0.1
25 Dec 2020 06:00 Ankatrafay Madagascar  0.1
25 Dec 2020 06:00 Antandrokomby Madagascar  0.1
25 Dec 2020 03:15 Antalavia Madagascar  0.1
25 Dec 2020 00:15 Banda Kuu Tanzania  0.1
25 Dec 2020 04:45 Antanetilava Madagascar  0.1
25 Dec 2020 04:45 Vatobe Madagascar  0.1
25 Dec 2020 04:45 Manambato Madagascar  0.1
25 Dec 2020 00:30 Mkuuni Tanzania  0.1
25 Dec 2020 00:30 Gazija Tanzania  0.1
25 Dec 2020 00:30 Gulioni Tanzania  0.1
25 Dec 2020 03:30 Mahatsara Madagascar  0.1
25 Dec 2020 00:15 Maganja Mozambique  0.1
25 Dec 2020 01:30 Soahazo Madagascar  0.1
25 Dec 2020 01:30 Moravano Madagascar  0.1
25 Dec 2020 01:30 Andramasay Madagascar  0.1
25 Dec 2020 04:00 Ampatsinakoho Madagascar  0.1
25 Dec 2020 04:00 Ampataka Madagascar  0.1
25 Dec 2020 04:00 Amboboka Madagascar  0.1
25 Dec 2020 00:15 Ambalabao Madagascar  0.1
25 Dec 2020 00:00 Sakura Tanzania  0.1
25 Dec 2020 00:30 Nosy Faly Madagascar  0.1
25 Dec 2020 00:30 Ambato Madagascar  0.1
25 Dec 2020 00:00 Nhangau Mozambique  0.1
25 Dec 2020 00:00 Chofandicho Mozambique  0.1
25 Dec 2020 02:00 Tambohorano Madagascar  0.1
25 Dec 2020 02:00 Ambatomilahy Madagascar  0.1
25 Dec 2020 02:00 Ankirijibe Madagascar  0.1
25 Dec 2020 02:00 Ankazobe Madagascar  0.1
25 Dec 2020 06:00 Canhamba Mozambique  0.1
25 Dec 2020 00:15 Andranovoribe Madagascar  0.1
25 Dec 2020 00:45 Antanamazava Madagascar  0.1