Overall Green alert Tropical Cyclone for CHALANE-20
in Mozambique, Zimbabwe, Madagascar, Botswana
27 Dec 2020 18 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 1.4 m (30 Dec 12:00 UTC)
    Vulnerability High (Madagascar)
    Landfall between
    27 Dec 2020 06:00 - 27 Dec 2020 18:00
    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 120 km/h 1.5 m n.a. 1.5
    Overall 111 km/h 1.4 m n.a. 1.5

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

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    Wind

      120 km/h Current Max.

      Up to 100000 people in Category 1 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
        Green 5 26 Dec 2020 18:00 83 8.8 million No people Madagascar, Mozambique, Zimbabwe, Botswana
        Green 6 27 Dec 2020 06:00 93 10.9 million No people Madagascar, Mozambique, Zimbabwe
        Orange 7 27 Dec 2020 18:00 120 11.5 million 100 thousand Mozambique

        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
          		 5 26 Dec 2020 18:00 Tropical storm 65 no people 6.7 million people -17.6, 49.7
          GREEN
          		 6 27 Dec 2020 06:00 Tropical depression 46 no people no people -18.1, 47.6 Madagascar
          GREEN
          		 7 27 Dec 2020 18:00 Tropical depression 56 no people 140000 people -19.2, 45.6 Madagascar
          GREEN
          		 7 28 Dec 2020 06:00 Tropical storm 65 no people 37000 people -20, 43.9
          GREEN
          		 7 28 Dec 2020 18:00 Tropical storm 74 no people no people -20.2, 42.4
          GREEN
          		 7 29 Dec 2020 06:00 Tropical storm 93 no people no people -20.2, 40.5
          ORANGE
          		 7 29 Dec 2020 18:00 Category 1 120 100000 people 2.1 million people -20.2, 38.2
          GREEN
          		 7 30 Dec 2020 18:00 Tropical storm 102 no people 4.7 million people -20.2, 33.5 Mozambique
          GREEN
          		 7 31 Dec 2020 18:00 Tropical depression 56 no people no people -20.3, 27.8 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
          Mozambique

          Provinces

          Region Province Country
          Sofala Mozambique
          Manica Mozambique

          Critical infrastructure

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

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          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

          1.4 m

          The maximum Storm surge height is  1.5m in Manica, Mozambique. This height is estimated for 30 Dec 2020 12:00 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 (201 locations). Calculation based on advisory number 7 of 27 Dec 2020 18:00:00 UTC. (Simulation using 0.5 minute resolution)

          Alert Date (UTC) Name Country Storm surge height (m)
          30 Dec 2020 12:00 Manica Mozambique  1.5
          30 Dec 2020 12:00 Nova Sofala Mozambique  1.5
          30 Dec 2020 13:00 Chiloane Mozambique  1.0
          30 Dec 2020 12:00 Beira Mozambique  0.8
          25 Dec 2020 14:00 Ambodiatafa Madagascar  0.4
          30 Dec 2020 10:00 Nhangau Mozambique  0.4
          30 Dec 2020 10:00 Damiao Mozambique  0.4
          30 Dec 2020 10:00 Chamba Mozambique  0.4
          28 Dec 2020 03:00 Andopitaly Madagascar  0.3
          28 Dec 2020 03:00 Ambozaka Madagascar  0.3
          26 Dec 2020 07:00 Ilomotro Madagascar  0.3
          26 Dec 2020 07:00 Andohonko Madagascar  0.3
          26 Dec 2020 07:00 Antsisikala Madagascar  0.3
          25 Dec 2020 13:00 Mahalevona Madagascar  0.3
          26 Dec 2020 19:00 Mahatsara Madagascar  0.3
          26 Dec 2020 19:00 Foulpointe Madagascar  0.3
          25 Dec 2020 14:00 Maroantsetra Madagascar  0.3
          25 Dec 2020 14:00 Andranofotsy Madagascar  0.3
          25 Dec 2020 14:00 Anantoraka Madagascar  0.3
          28 Dec 2020 03:00 Antanambao Samaka Madagascar  0.3
          28 Dec 2020 02:00 Moravano Madagascar  0.3
          28 Dec 2020 03:00 Andramasay Madagascar  0.3
          26 Dec 2020 12:00 Fadrina Madagascar  0.2
          26 Dec 2020 19:00 Namahoaka Madagascar  0.2
          26 Dec 2020 06:00 Ankazomalemy 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 19:00 Taratasy Madagascar  0.2
          28 Dec 2020 02:00 Tamotamo Madagascar  0.2
          30 Dec 2020 11:00 Bartolomeu Dias Mozambique  0.2
          25 Dec 2020 19:00 Andrangazaha Madagascar  0.2
          28 Dec 2020 02:00 Soahazo Madagascar  0.2
          26 Dec 2020 18:00 Bobasakoa Madagascar  0.2
          26 Dec 2020 18:00 Antanimandry Madagascar  0.2
          26 Dec 2020 18:00 Ambodibonara Madagascar  0.2
          26 Dec 2020 18:00 Tanambao Madagascar  0.2
          26 Dec 2020 18:00 Anjabe Madagascar  0.2
          26 Dec 2020 18:00 Andranomena Madagascar  0.2
          26 Dec 2020 18:00 Andranofotsy Madagascar  0.2
          30 Dec 2020 09:00 Jonja Mozambique  0.2
          30 Dec 2020 09:00 Chofandicho Mozambique  0.2
          30 Dec 2020 11:00 Jo Mozambique  0.2
          25 Dec 2020 14:00 Voloina Madagascar  0.2
          25 Dec 2020 19:00 Soanierana Ivongo Madagascar  0.2
          26 Dec 2020 19:00 Ambinanysahavary Madagascar  0.2
          26 Dec 2020 18:00 Manehoko Madagascar  0.2
          25 Dec 2020 14:00 Tampolo Madagascar  0.2
          28 Dec 2020 10:00 Antserananbondro Madagascar  0.2
          26 Dec 2020 06:00 Ambariomena Madagascar  0.2
          26 Dec 2020 06:00 Antsahabe Madagascar  0.2
          26 Dec 2020 06:00 Ambodizaotra Madagascar  0.2
          26 Dec 2020 06:00 Antananabe Madagascar  0.2
          26 Dec 2020 06:00 Marokitrana Madagascar  0.2
          26 Dec 2020 06:00 Ampiambesa Madagascar  0.2
          26 Dec 2020 18:00 Bevoay Madagascar  0.2
          26 Dec 2020 06:00 Antetezampolaka Madagascar  0.2
          28 Dec 2020 19:00 Baly Madagascar  0.2
          26 Dec 2020 11:00 Ambatobe Madagascar  0.2
          26 Dec 2020 17:00 Vohilava Madagascar  0.2
          28 Dec 2020 11:00 Manometimay Madagascar  0.2
          28 Dec 2020 10:00 Morondava Madagascar  0.2
          28 Dec 2020 10:00 Ankirijibe Madagascar  0.2
          26 Dec 2020 09:00 Anorotsangana Madagascar  0.2
          26 Dec 2020 20:00 Vohitsara Madagascar  0.2
          26 Dec 2020 20:00 Ambodimanga Madagascar  0.2
          26 Dec 2020 18:00 Madirotelo Madagascar  0.2
          30 Dec 2020 09:00 Panaca Mozambique  0.2
          30 Dec 2020 12:00 Dinguiduane Mozambique  0.2
          26 Dec 2020 17:00 Ambodifototra Madagascar  0.2
          26 Dec 2020 16:00 Lonkintsy Madagascar  0.2
          26 Dec 2020 16:00 Lokintsy Madagascar  0.2
          26 Dec 2020 17:00 Lohatrozona Madagascar  0.2
          26 Dec 2020 13:00 Tanambe Madagascar  0.2
          28 Dec 2020 10:00 Kivalo Est Madagascar  0.2
          26 Dec 2020 06:00 Maromokotra Madagascar  0.2
          28 Dec 2020 02:00 Ankoadavo Madagascar  0.2
          26 Dec 2020 10:00 Ambanisanjo Madagascar  0.2
          25 Dec 2020 13:00 Rantabe Madagascar  0.2
          25 Dec 2020 14:00 Fampotabe Madagascar  0.2
          25 Dec 2020 19:00 Fandrarazana Madagascar  0.2
          28 Dec 2020 20:00 Ampanihy Madagascar  0.2
          28 Dec 2020 11:00 Antsamaka Madagascar  0.2
          26 Dec 2020 07:00 Antanifatsy Madagascar  0.2
          26 Dec 2020 19:00 Fenerive Madagascar  0.2
          29 Dec 2020 02:00 Maconharumo Mozambique  0.2
          29 Dec 2020 02:00 Amado Mozambique  0.2
          28 Dec 2020 02:00 Appontement Madagascar  0.2
          30 Dec 2020 12:00 Laisse Mozambique  0.2
          26 Dec 2020 07:00 Fararano Madagascar  0.1
          26 Dec 2020 07:00 Antsorokaka Madagascar  0.1
          26 Dec 2020 08:00 Antalavia Madagascar  0.1
          25 Dec 2020 14:00 Rantranavona Madagascar  0.1
          25 Dec 2020 18:00 Ampasimbe Madagascar  0.1
          25 Dec 2020 20:00 Manakalana Madagascar  0.1
          25 Dec 2020 21:00 Anjanozana Madagascar  0.1
          26 Dec 2020 06:00 Mandrony Madagascar  0.1
          30 Dec 2020 08:00 Tama Mozambique  0.1
          26 Dec 2020 20:00 Antetezambaro Madagascar  0.1
          25 Dec 2020 20:00 Anoromby Madagascar  0.1
          28 Dec 2020 21:00 Reharaka Madagascar  0.1
          28 Dec 2020 19:00 Ankazobe Madagascar  0.1
          28 Dec 2020 20:00 Manomba Madagascar  0.1
          28 Dec 2020 09:00 Antohgo Madagascar  0.1
          28 Dec 2020 19:00 Ambalabao Madagascar  0.1
          28 Dec 2020 19:00 Bevatry Madagascar  0.1
          29 Dec 2020 02:00 Chimuaza Mozambique  0.1
          29 Dec 2020 03:00 Mulia Mozambique  0.1
          26 Dec 2020 19:00 Mahambo Madagascar  0.1
          26 Dec 2020 18:00 Ananalava Madagascar  0.1
          28 Dec 2020 18:00 Tsilambana Madagascar  0.1
          26 Dec 2020 07:00 Mahatsaborimaika Madagascar  0.1
          26 Dec 2020 20:00 Ambodihariha Madagascar  0.1
          28 Dec 2020 22:00 Morrua Mozambique  0.1
          26 Dec 2020 18:00 Nosy Faly Madagascar  0.1
          26 Dec 2020 17:00 Ambaramidada Madagascar  0.1
          26 Dec 2020 06:00 Ampanakana Madagascar  0.1
          26 Dec 2020 07:00 Maintimbato Madagascar  0.1
          25 Dec 2020 21:00 Andilamboahangy Madagascar  0.1
          26 Dec 2020 11:00 Manompana Madagascar  0.1
          25 Dec 2020 17:00 Anaovandrano Madagascar  0.1
          28 Dec 2020 20:00 Maintirano Madagascar  0.1
          28 Dec 2020 20:00 Andemba Madagascar  0.1
          28 Dec 2020 21:00 Belailay Madagascar  0.1
          28 Dec 2020 19:00 Ankoakala Madagascar  0.1
          28 Dec 2020 19:00 Kamendriky Madagascar  0.1
          28 Dec 2020 12:00 Ankiliabo Madagascar  0.1
          29 Dec 2020 02:00 Ocone Mozambique  0.1
          29 Dec 2020 03:00 Quelimane do Sal Mozambique  0.1
          29 Dec 2020 03:00 Inhangulue Mozambique  0.1
          29 Dec 2020 03:00 Mendozo Mozambique  0.1
          29 Dec 2020 03:00 Magromane Mozambique  0.1
          26 Dec 2020 19:00 Andanivato Madagascar  0.1
          26 Dec 2020 19:00 Ambatojoby Madagascar  0.1
          26 Dec 2020 19:00 Andramy Madagascar  0.1
          26 Dec 2020 19:00 Marotaola Madagascar  0.1
          26 Dec 2020 19:00 Ampandrano Madagascar  0.1
          26 Dec 2020 18:00 Andrafialava Madagascar  0.1
          26 Dec 2020 19:00 Marovato Madagascar  0.1
          26 Dec 2020 18:00 Analalava Madagascar  0.1
          26 Dec 2020 19:00 Ampasimpilily Madagascar  0.1
          29 Dec 2020 03:00 Nhamatamanga Mozambique  0.1
          28 Dec 2020 16:00 Belo-sur-Mer Madagascar  0.1
          26 Dec 2020 18:00 Antanamazava Madagascar  0.1
          26 Dec 2020 18:00 Ambatomainty Madagascar  0.1
          26 Dec 2020 08:00 Fananehana 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
          25 Dec 2020 20:00 Ivontaka Madagascar  0.1
          25 Dec 2020 20:00 Seranambe Madagascar  0.1
          26 Dec 2020 08:00 Vinanivao Madagascar  0.1
          28 Dec 2020 19:00 Tambohorano Madagascar  0.1
          28 Dec 2020 20:00 Ambatomilahy Madagascar  0.1
          28 Dec 2020 20:00 Ankirijibe Madagascar  0.1
          28 Dec 2020 19:00 Manampea Madagascar  0.1
          28 Dec 2020 19:00 Antandrokomby Madagascar  0.1
          28 Dec 2020 19:00 Ankatrafay Madagascar  0.1
          28 Dec 2020 19:00 Ankerefo Madagascar  0.1
          26 Dec 2020 18:00 Bejongoro Madagascar  0.1
          28 Dec 2020 19:00 Manampatra Madagascar  0.1
          28 Dec 2020 19:00 Vilamatsa Madagascar  0.1
          26 Dec 2020 18:00 Ampasibe Madagascar  0.1
          28 Dec 2020 19:00 Voalavo Madagascar  0.1
          30 Dec 2020 08:00 Bingue Mozambique  0.1
          29 Dec 2020 02:00 Vila do Chinde Mozambique  0.1
          25 Dec 2020 18:00 Manambato Madagascar  0.1
          25 Dec 2020 20:00 Antanambe Madagascar  0.1
          26 Dec 2020 18:00 Marofinaritra Madagascar  0.1
          26 Dec 2020 18:00 Ankarefo Madagascar  0.1
          26 Dec 2020 18:00 Mahatsara Madagascar  0.1
          26 Dec 2020 18:00 Ambato Madagascar  0.1
          25 Dec 2020 18:00 Mahavanona Madagascar  0.1
          26 Dec 2020 08:00 Ampasina 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
          25 Dec 2020 20:00 Vatobe Madagascar  0.1
          25 Dec 2020 21:00 Ambatofitarafana Madagascar  0.1
          25 Dec 2020 21:00 Ambodimanga Madagascar  0.1
          26 Dec 2020 07:00 Ambatoharana Madagascar  0.1
          28 Dec 2020 03:00 Soahanina Madagascar  0.1
          28 Dec 2020 19:00 Antsafy Madagascar  0.1
          28 Dec 2020 19:00 Ambato Madagascar  0.1
          26 Dec 2020 10:00 Anjiamalandy Madagascar  0.1
          28 Dec 2020 19:00 Marovazha Madagascar  0.1
          28 Dec 2020 19:00 Belavenoka Madagascar  0.1
          28 Dec 2020 19:00 Ankerefo Madagascar  0.1
          29 Dec 2020 03:00 Barra Mozambique  0.1
          26 Dec 2020 18:00 Antsikafoka Madagascar  0.1
          28 Dec 2020 19:00 Marofototra Madagascar  0.1
          30 Dec 2020 07:00 Rupia Mozambique  0.1
          30 Dec 2020 07:00 Machesse Mozambique  0.1
          26 Dec 2020 18:00 Anjiabe Madagascar  0.1
          26 Dec 2020 18:00 Ambatoxavavy Madagascar  0.1
          25 Dec 2020 20:00 Antanetilava Madagascar  0.1
          26 Dec 2020 18:00 Ampombilava Madagascar  0.1
          29 Dec 2020 00:00 Caliua Mozambique  0.1
          29 Dec 2020 00:00 Raraga Mozambique  0.1
          26 Dec 2020 19:00 Tamatave Madagascar  0.1
          29 Dec 2020 00:00 Mutiba Mozambique  0.1