Overall Green alert Tropical Cyclone for CHALANE-20
in Mozambique, Zimbabwe, Madagascar, Botswana
26 Dec 2020 06 UTC
click on to select bulletin time
  • GDACS JTWC
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 GDACS
    Exposed countries Mozambique, Zimbabwe, Madagascar, Botswana
    Exposed population No people in Category 1 or higher
    Maximum wind speed 111 km/h
    Maximum storm surge 0.5 m (29 Dec 08:00 UTC)
    Vulnerability High (Madagascar)
    Landfall between
    26 Dec 2020 18:00 - 27 Dec 2020 06:00
    in 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
    Current 83 km/h 0.5 m n.a. 0.5
    Overall 111 km/h 0.5 m n.a. 0.5

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

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    Wind

      83 km/h Current Max.

      Up to 5.5 million people in Tropical Storm strength or higher (see SSHS)

      Impact Timeline

        Alert N° Date (UTC) Max Winds (km/h) Population in
        Tropical Storm or higher        		 Population in
        Cat 1. or higher        		 Countries
        Green 1 24 Dec 2020 18:00 93 9.3 million No people Madagascar
        Green 2 25 Dec 2020 06:00 83 3.6 million No people Madagascar
        Green 3 25 Dec 2020 18:00 83 5.4 million No people Madagascar, Mozambique, Zimbabwe
        Green 4 26 Dec 2020 06:00 83 5.5 million No people Madagascar, Mozambique, Zimbabwe

        Bulletin Timeline

          Alert N° Date (UTC) Category
          (SSHS)           		Max winds
          (km/h)           		Population in
          Cat.1 or higher           		Population in
          Tropical Storm
          or higher           		Location (lat, lon) Countries
          GREEN
          		 1 24 Dec 2020 18:00 Tropical storm 65 no people no people -15.8, 57.4
          GREEN
          		 2 25 Dec 2020 06:00 Tropical storm 65 no people no people -15.9, 55.6
          GREEN
          		 3 25 Dec 2020 18:00 Tropical storm 65 no people no people -16.2, 53.7
          GREEN
          		 4 26 Dec 2020 06:00 Tropical storm 65 no people 210000 people -16.1, 52.4
          GREEN
          		 4 26 Dec 2020 18:00 Tropical storm 65 no people 1.7 million people -16.4, 50.6
          GREEN
          		 4 27 Dec 2020 06:00 Tropical depression 56 no people no people -17, 48.4 Madagascar
          GREEN
          		 4 27 Dec 2020 18:00 Tropical depression 46 no people no people -18, 46.2 Madagascar
          GREEN
          		 4 28 Dec 2020 06:00 Tropical depression 46 no people 1100 people -18.9, 44.4 Madagascar
          GREEN
          		 4 29 Dec 2020 06:00 Tropical storm 65 no people 35000 people -19.4, 41
          GREEN
          		 4 30 Dec 2020 06:00 Tropical storm 83 no people 3.8 million people -19.4, 36.5
          GREEN
          		 4 31 Dec 2020 06:00 Tropical depression 56 no people no people -19.7, 31 Zimbabwe
          Actual track of the current bulletin
          The alert for forecast greater than 3 days is limited to Orange level.
          Download:



          Exposed population - AoIs

          Exposed population in the potential affected countries, provinces and populated places

          Countries

          Country
          Madagascar
          Mozambique
          Zimbabwe

          Provinces

          Region Province Country
          Antsiranana Madagascar
          Toamasina Madagascar
          Mahajanga Madagascar
          Zambezia Mozambique
          Sofala Mozambique
          Manica Mozambique
          Manicaland Zimbabwe
          Mashonaland East Zimbabwe
          Masvingo Zimbabwe
          Midlands Zimbabwe

          Populated places

          Name Region Province Country City class Population
          Mananara Toamasina Madagascar City 41000 people
          Fenerive Toamasina Madagascar City -
          Beira Sofala Mozambique Major city 520000 people
          Chimoio Manica Mozambique City 260000 people
          Mutare Manicaland Zimbabwe City 180000 people
          Masvingo Masvingo Zimbabwe City 76000 people

          Critical infrastructure

          Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

          Airports

          Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft)
          Mananara Nord WMR 3 Civ. Paved No 4100
          Sainte Marie SMS 2 Civ. Paved No 3300
          Ambatondrazaka WAM 766 Civ. Unpaved No 4200
          Tsaratanana TTS 327 Civ. Unpaved No 4300
          Chinde INE unknown 0
          Beira BEW 10 Civ. Paved Yes 7800
          Chimoio VPY 686 Civ. Paved No 7800
          Mutare UTA 1041 Priv. Paved No 3100
          Chipinge CHJ unknown 0
          Masvingo MVZ 1096 Civ. Paved Yes 5600

          Ports

          Name LOCODE Country
          Saint Mary Island Madagascar
          Mananara MGWMR Madagascar
          Port Sainte Marie Madagascar
          Fenerive Madagascar
          Chinde MZINE Mozambique
          Beira MZBEW Mozambique

          Dams

          Reservoir Dam Name River Year
          Sahamaloto Sahamaloto 1958
          Bue Maria Pungoe n/a
          Revue Chicamba Real Revue 1959
          Ratelshoek Chibudzana 1985
          Ruti Nyazvidzi 1976
          Kyle Kyle Mutirikwi 1960
          Driefontein Shashe n/a
          TOP

          Rainfall

          Rainfall accumulation of the past 24h, as detected by the Global Precipitation Measurement mission of NASA. For more information, see https://www.nasa.gov/mission_pages/GPM/main/index.html.

          ...

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          StormSurge

          0.5 m

          The maximum Storm surge height is  0.5m in Maconharumo, Mozambique. This height is estimated for 29 Dec 2020 08:00 UTC .

          The JRC has developed an experimental global storm surge model. 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.

          Locations affected by Storm surge (209 locations). Calculation based on advisory number 4 of 26 Dec 2020 06:00:00 UTC. (Simulation using 0.5 minute resolution)

          Alert Date (UTC) Name Country Storm surge height (m)
          29 Dec 2020 08:00 Maconharumo Mozambique  0.5
          29 Dec 2020 08:00 Amado Mozambique  0.5
          30 Dec 2020 06:00 Nhangau Mozambique  0.4
          30 Dec 2020 06:00 Damiao Mozambique  0.4
          30 Dec 2020 06:00 Chamba Mozambique  0.4
          30 Dec 2020 06:00 Beira Mozambique  0.4
          29 Dec 2020 08:00 Chimuaza Mozambique  0.4
          29 Dec 2020 06:00 Baly Madagascar  0.4
          25 Dec 2020 14:00 Ambodiatafa Madagascar  0.4
          29 Dec 2020 07:00 Mulia Mozambique  0.3
          30 Dec 2020 06:00 Tama Mozambique  0.3
          30 Dec 2020 06:00 Jonja Mozambique  0.3
          30 Dec 2020 06:00 Machesse Mozambique  0.3
          30 Dec 2020 06:00 Chofandicho Mozambique  0.3
          30 Dec 2020 06:00 Bingue Mozambique  0.3
          30 Dec 2020 06:00 Panaca Mozambique  0.3
          30 Dec 2020 06:00 Manica Mozambique  0.3
          29 Dec 2020 07:00 Ocone Mozambique  0.3
          30 Dec 2020 06:00 Rupia Mozambique  0.3
          29 Dec 2020 06:00 Boanamary Madagascar  0.3
          25 Dec 2020 13:00 Mahalevona Madagascar  0.3
          29 Dec 2020 07:00 Manampea Madagascar  0.3
          29 Dec 2020 08:00 Barra Mozambique  0.3
          29 Dec 2020 08:00 Vila do Chinde Mozambique  0.3
          25 Dec 2020 14:00 Maroantsetra Madagascar  0.3
          25 Dec 2020 14:00 Andranofotsy Madagascar  0.3
          26 Dec 2020 23:00 Soanierana Ivongo Madagascar  0.3
          26 Dec 2020 23:00 Andrangazaha Madagascar  0.3
          26 Dec 2020 22:00 Manambato Madagascar  0.3
          26 Dec 2020 22:00 Antanetilava Madagascar  0.3
          29 Dec 2020 08:00 Quelimane do Sal Mozambique  0.3
          29 Dec 2020 08:00 Inhangulue Mozambique  0.3
          29 Dec 2020 08:00 Magromane Mozambique  0.3
          29 Dec 2020 08:00 Nhamatamanga Mozambique  0.3
          26 Dec 2020 23:00 Manompana Madagascar  0.3
          29 Dec 2020 08:00 Ankazobe Madagascar  0.3
          29 Dec 2020 07:00 Onara Madagascar  0.3
          29 Dec 2020 07:00 Ambato Madagascar  0.3
          29 Dec 2020 06:00 Kamendriky Madagascar  0.3
          29 Dec 2020 07:00 Marovazha Madagascar  0.3
          29 Dec 2020 07:00 Belavenoka Madagascar  0.3
          29 Dec 2020 07:00 Ankerefo Madagascar  0.3
          26 Dec 2020 06:00 Ankazomalemy Madagascar  0.3
          26 Dec 2020 08:00 Fadrina Madagascar  0.3
          26 Dec 2020 23:00 Fandrarazana Madagascar  0.3
          26 Dec 2020 22:00 Vatobe Madagascar  0.3
          29 Dec 2020 07:00 Marofototra Madagascar  0.3
          29 Dec 2020 07:00 Voalavo Madagascar  0.3
          30 Dec 2020 06:00 Nova Sofala Mozambique  0.3
          29 Dec 2020 06:00 Majunga Madagascar  0.3
          25 Dec 2020 14:00 Anantoraka Madagascar  0.2
          29 Dec 2020 06:00 Katsepy Madagascar  0.2
          29 Dec 2020 07:00 Ankirijibe Madagascar  0.2
          29 Dec 2020 07:00 Antsafy Madagascar  0.2
          29 Dec 2020 06:00 Ambalabao Madagascar  0.2
          29 Dec 2020 06:00 Bevatry Madagascar  0.2
          29 Dec 2020 06:00 Tsilambana Madagascar  0.2
          25 Dec 2020 14:00 Manambia Madagascar  0.2
          25 Dec 2020 13:00 Ambanizana Madagascar  0.2
          25 Dec 2020 13:00 Benjana Madagascar  0.2
          26 Dec 2020 23:00 Manakalana Madagascar  0.2
          29 Dec 2020 09:00 Manomba Madagascar  0.2
          29 Dec 2020 07:00 Ankoakala Madagascar  0.2
          26 Dec 2020 07:00 Ilomotro Madagascar  0.2
          26 Dec 2020 07:00 Andohonko Madagascar  0.2
          26 Dec 2020 07:00 Antsisikala Madagascar  0.2
          29 Dec 2020 10:00 Reharaka Madagascar  0.2
          29 Dec 2020 10:00 Belailay Madagascar  0.2
          29 Dec 2020 10:00 Antandrokomby Madagascar  0.2
          29 Dec 2020 10:00 Ankatrafay Madagascar  0.2
          27 Dec 2020 00:00 Ampasina Madagascar  0.2
          26 Dec 2020 23:00 Ampasimbe Madagascar  0.2
          29 Dec 2020 09:00 Maintirano Madagascar  0.2
          29 Dec 2020 11:00 Andemba Madagascar  0.2
          29 Dec 2020 10:00 Ampanihy Madagascar  0.2
          29 Dec 2020 08:00 Tambohorano Madagascar  0.2
          29 Dec 2020 08:00 Ambatomilahy Madagascar  0.2
          25 Dec 2020 14:00 Voloina Madagascar  0.2
          29 Dec 2020 07:00 Manehoko Madagascar  0.2
          27 Dec 2020 00:00 Mahavanona Madagascar  0.2
          29 Dec 2020 12:00 Antsamaka Madagascar  0.2
          26 Dec 2020 08:00 Anjiamalandy Madagascar  0.2
          26 Dec 2020 08:00 Ambariomena Madagascar  0.2
          26 Dec 2020 08:00 Antsahabe Madagascar  0.2
          26 Dec 2020 08:00 Ambodizaotra Madagascar  0.2
          26 Dec 2020 08:00 Antananabe Madagascar  0.2
          26 Dec 2020 09:00 Marokitrana Madagascar  0.2
          26 Dec 2020 08:00 Ampiambesa Madagascar  0.2
          26 Dec 2020 08:00 Antetezampolaka Madagascar  0.2
          29 Dec 2020 07:00 Nosy Faly Madagascar  0.2
          29 Dec 2020 07:00 Ambato Madagascar  0.2
          25 Dec 2020 14:00 Tampolo Madagascar  0.2
          26 Dec 2020 21:00 Antanambe Madagascar  0.2
          26 Dec 2020 10:00 Bobasakoa Madagascar  0.2
          26 Dec 2020 10:00 Ambodibonara Madagascar  0.2
          26 Dec 2020 10:00 Tanambao Madagascar  0.2
          26 Dec 2020 10:00 Anjabe Madagascar  0.2
          26 Dec 2020 10:00 Andranomena Madagascar  0.2
          26 Dec 2020 23:00 Lonkintsy Madagascar  0.2
          29 Dec 2020 11:00 Manometimay Madagascar  0.2
          29 Dec 2020 11:00 Antserananbondro Madagascar  0.2
          29 Dec 2020 11:00 Ankirijibe Madagascar  0.2
          29 Dec 2020 11:00 Kivalo Est Madagascar  0.2
          26 Dec 2020 10:00 Andranofotsy Madagascar  0.2
          29 Dec 2020 06:00 Mutiba Mozambique  0.2
          29 Dec 2020 07:00 Metapa Mozambique  0.2
          29 Dec 2020 06:00 Manampatra Madagascar  0.2
          26 Dec 2020 09:00 Maromokotra Madagascar  0.2
          26 Dec 2020 09:00 Bevoay Madagascar  0.2
          29 Dec 2020 07:00 Ankinganomby Madagascar  0.2
          29 Dec 2020 07:00 Anjiajia Madagascar  0.2
          29 Dec 2020 07:00 Anjiabe Madagascar  0.2
          29 Dec 2020 07:00 Antanamazava Madagascar  0.2
          29 Dec 2020 07:00 Ambatomainty Madagascar  0.2
          29 Dec 2020 07:00 Antanimandry Madagascar  0.2
          26 Dec 2020 22:00 Ambatofitarafana Madagascar  0.2
          26 Dec 2020 22:00 Ambodimanga Madagascar  0.2
          26 Dec 2020 23:00 Ambodifototra Madagascar  0.2
          26 Dec 2020 23:00 Lokintsy Madagascar  0.2
          26 Dec 2020 18:00 Ambatoharana Madagascar  0.2
          29 Dec 2020 06:00 Ankerefo Madagascar  0.2
          26 Dec 2020 09:00 Anorotsangana Madagascar  0.2
          29 Dec 2020 06:00 Ampapamena Madagascar  0.2
          29 Dec 2020 06:00 Masokoamena Madagascar  0.2
          29 Dec 2020 06:00 Morrua Mozambique  0.2
          29 Dec 2020 07:00 Carramali Mozambique  0.2
          26 Dec 2020 09:00 Madirotelo Madagascar  0.2
          29 Dec 2020 07:00 Ambalatsingy Madagascar  0.2
          29 Dec 2020 07:00 Chululu Mozambique  0.2
          29 Dec 2020 06:00 Caramaca Mozambique  0.2
          29 Dec 2020 07:00 Ampombilava Madagascar  0.2
          29 Dec 2020 07:00 Andriana Madagascar  0.2
          26 Dec 2020 10:00 Ambanisanjo Madagascar  0.2
          26 Dec 2020 10:00 Ambatobe Madagascar  0.2
          25 Dec 2020 13:00 Rantabe Madagascar  0.2
          25 Dec 2020 14:00 Fampotabe Madagascar  0.2
          26 Dec 2020 23:00 Lohatrozona Madagascar  0.2
          29 Dec 2020 12:00 Morondava Madagascar  0.2
          27 Dec 2020 00:00 Fenerive Madagascar  0.2
          29 Dec 2020 09:00 Mendozo Mozambique  0.2
          26 Dec 2020 09:00 Mandrony Madagascar  0.2
          29 Dec 2020 07:00 Ambodibonara Madagascar  0.2
          29 Dec 2020 07:00 Tsaratanana Madagascar  0.2
          29 Dec 2020 07:00 Ampasindava Madagascar  0.2
          29 Dec 2020 06:00 Moebase Mozambique  0.2
          29 Dec 2020 07:00 Ambatoxavavy Madagascar  0.1
          29 Dec 2020 07:00 Andrafia Madagascar  0.1
          29 Dec 2020 07:00 Ambaramidada Madagascar  0.1
          25 Dec 2020 20:00 Fananehana Madagascar  0.1
          25 Dec 2020 14:00 Rantranavona Madagascar  0.1
          26 Dec 2020 21:00 Andilamboahangy Madagascar  0.1
          26 Dec 2020 21:00 Ivontaka Madagascar  0.1
          26 Dec 2020 23:00 Vohilava Madagascar  0.1
          26 Dec 2020 19:00 Anjanozana Madagascar  0.1
          29 Dec 2020 05:00 Andanivato Madagascar  0.1
          29 Dec 2020 05:00 Ambatojoby Madagascar  0.1
          29 Dec 2020 05:00 Andramy Madagascar  0.1
          29 Dec 2020 05:00 Marotaola Madagascar  0.1
          29 Dec 2020 06:00 Caliua Mozambique  0.1
          29 Dec 2020 06:00 Raraga Mozambique  0.1
          29 Dec 2020 07:00 Vilamatsa Madagascar  0.1
          30 Dec 2020 06:00 Chiloane Mozambique  0.1
          29 Dec 2020 07:00 Antaribao Madagascar  0.1
          29 Dec 2020 07:00 Ankinganifahatelo Madagascar  0.1
          29 Dec 2020 12:00 Belo-sur-Mer Madagascar  0.1
          29 Dec 2020 06:00 Murrumuana Mozambique  0.1
          26 Dec 2020 07:00 Fararano Madagascar  0.1
          26 Dec 2020 07:00 Antsorokaka Madagascar  0.1
          25 Dec 2020 20:00 Anoromby Madagascar  0.1
          29 Dec 2020 11:00 Andopitaly Madagascar  0.1
          29 Dec 2020 06:00 Andranovoribe Madagascar  0.1
          29 Dec 2020 07:00 Tomodo Mozambique  0.1
          30 Dec 2020 06:00 Bartolomeu Dias Mozambique  0.1
          29 Dec 2020 06:00 Analalava Madagascar  0.1
          29 Dec 2020 11:00 Ambozaka Madagascar  0.1
          29 Dec 2020 06:00 Namorre Mozambique  0.1
          26 Dec 2020 07:00 Ampanakana Madagascar  0.1
          26 Dec 2020 20:00 Seranambe Madagascar  0.1
          26 Dec 2020 23:00 Tanambe Madagascar  0.1
          25 Dec 2020 17:00 Vinanivao Madagascar  0.1
          25 Dec 2020 17:00 Anaovandrano Madagascar  0.1
          26 Dec 2020 08:00 Antanifatsy Madagascar  0.1
          26 Dec 2020 08:00 Mahatsaborimaika Madagascar  0.1
          29 Dec 2020 12:00 Ankiliabo Madagascar  0.1
          27 Dec 2020 00:00 Antsikafoka Madagascar  0.1
          25 Dec 2020 03:00 Antalavia Madagascar  0.1
          25 Dec 2020 18:00 Antakobola Madagascar  0.1
          25 Dec 2020 18:00 Analanampotsy Madagascar  0.1
          25 Dec 2020 20:00 Manambolosy Madagascar  0.1
          26 Dec 2020 09:00 Bejongoro Madagascar  0.1
          26 Dec 2020 09:00 Ampandrano Madagascar  0.1
          30 Dec 2020 06:00 Jo Mozambique  0.1
          26 Dec 2020 09:00 Marovato Madagascar  0.1
          26 Dec 2020 09:00 Ananalava Madagascar  0.1
          26 Dec 2020 09:00 Ampasimpilily Madagascar  0.1
          29 Dec 2020 06:00 Napito Mozambique  0.1
          29 Dec 2020 06:00 Mutadua Mozambique  0.1
          24 Dec 2020 22:00 Maintimbato Madagascar  0.1
          25 Dec 2020 20:00 Fahambahy Madagascar  0.1
          25 Dec 2020 20:00 Tampolo Madagascar  0.1
          25 Dec 2020 20:00 Mananara Madagascar  0.1
          29 Dec 2020 13:00 Antanambao Samaka Madagascar  0.1
          29 Dec 2020 13:00 Antohgo Madagascar  0.1
          26 Dec 2020 10:00 Andrafialava Madagascar  0.1
          25 Dec 2020 18:00 Ampasibe Madagascar  0.1
          29 Dec 2020 06:00 Anjajavy Madagascar  0.1
          27 Dec 2020 00:00 Mahambo Madagascar  0.1
          29 Dec 2020 06:00 Antsianitia Madagascar  0.1
          29 Dec 2020 17:00 Afo Mozambique  0.1