Overall Green alert Tropical Cyclone for CHENESO-23
in Madagascar
18 Jan 2023 04 UTC
click on to select bulletin time
Impact Single TC
Impact based on all weather systems in the area

Impact

    Tropical Cyclone CHENESO-23 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

    Meteorological source WMO/RSMC La Réunion - Meteo France
    Exposed countries Madagascar
    Exposed population No people in Category 1 or higher
    Maximum wind speed 169 km/h
    Maximum storm surge 0.2 m (19 Jan 16:00 UTC)
    Vulnerability High (Madagascar)
    Landfall between
    19 Jan 2023 04:00 - 19 Jan 2023 16:00
    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 95 km/h 0.2 m n.a. 0.5
    Overall 169 km/h 0.2 m n.a. 0.5

    Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track) based on WMO/RSMC La Réunion - Meteo France impact

    Joint Pilot Activity: EC-JRC,WMO/RSMC La Réunion-Meteo France
    TOP

    Wind

      95 km/h Current Max.

      Up to 4.1 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 18 Jan 2023 04:00 95 4.1 million No people Madagascar

        Bulletin Timeline

          Alert N° Date (UTC) Category
          (SSHS)           		Max winds
          (km/h)           		Population in
          Cat.1 or higher           		Population in
          Tropical Storm
          or higher           		Category
          (WMO/RSMC) **           		Max winds
          (km/h)
          (WMO/RSMC)           		Location (lat, lon) Countries
          GREEN
          		 1 18 Jan 2023 04:00 Tropical storm 63 no people no people Tropical Depression 56 -13.8, 55.8
          GREEN
          		 1 18 Jan 2023 16:00 Tropical storm 74 no people 70000 people Moderate Tropical Storm 65 -13.8, 52.9
          GREEN
          		 1 19 Jan 2023 04:00 Tropical storm 95 no people 1.1 million people Moderate Tropical Storm 83 -14.1, 51.2
          GREEN
          		 1 19 Jan 2023 16:00 Tropical storm 84 no people 1.5 million people Moderate Tropical Storm 74 -14.6, 50.2 Madagascar
          GREEN
          		 1 20 Jan 2023 04:00 Tropical storm 63 no people 1.2 million people Overland Depression 56 -15.2, 49.3 Madagascar
          GREEN
          		 1 20 Jan 2023 16:00 Tropical storm 63 no people 1.7 million people Overland Depression 56 -16.1, 48.7 Madagascar
          GREEN
          		 1 21 Jan 2023 04:00 Tropical storm 63 no people 2.1 million people Overland Depression 56 -17.1, 48.7 Madagascar
          GREEN
          		 1 21 Jan 2023 16:00 Tropical storm 63 no people 1.5 million people Overland Depression 56 -18, 49 Madagascar
          GREEN
          		 1 22 Jan 2023 04:00 Tropical storm 63 no people 740000 people Overland Depression 56 -18.8, 49.4 Madagascar
          GREEN
          		 1 22 Jan 2023 16:00 Tropical storm 74 no people 190000 people Moderate Tropical Storm 65 -19.4, 49.8
          GREEN
          		 1 23 Jan 2023 04:00 Tropical storm 95 no people no people Moderate Tropical Storm 83 -20.2, 50.3
          **
          Tropical disturbance/Weak low pressure area/Remnant low (Vmax < 51 km/h), see WMO
          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 Population in Tropical Storm or higher strength
          Madagascar 4.1 million people

          Provinces

          Region Province Country Population in Tropical Storm or higher strength
          Antsiranana Madagascar 840000 people
          Toamasina Madagascar 2.6 million people
          Mahajanga Madagascar 680000 people

          Populated places

          Name Region Province Country City class Population
          Antalaha Antsiranana Madagascar City 34000 people
          Sambava Antsiranana Madagascar City 31000 people
          Andapa Antsiranana Madagascar City 20000 people
          Maroantsetra Toamasina Madagascar City 24000 people
          Mandritsara Mahajanga Madagascar City -
          Fenerive Toamasina Madagascar City -
          Tamatave Toamasina Madagascar City 200000 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)
          Antalaha Antsirabato ANM 6 Civ. Paved No 3900
          Sambava SVB 6 Civ. Paved No 5900
          Andapa ZWA 473 Civ. Paved No 4100
          Doany DOA unknown 0
          Maroantsetra WMN 4 Civ. Paved No 4200
          Mandritsara WMA 307 Civ. Unpaved No 3700
          Befandriana WBD 250 Civ. Unpaved No 4100
          Toamasina TMM 6 Civ. Paved Yes 7200
          Ambatondrazaka WAM 766 Civ. Unpaved No 4200
          Vatomandry VAT 12 Civ. Unpaved No 3800
          Atsinanana ILK 10 Civ. Unpaved No 3200

          Ports

          Name LOCODE Country
          Antataha MGANM Madagascar
          Sambava MGSVB Madagascar
          Maroantsetra MGWMN Madagascar
          Fenerive Madagascar
          Foulpointe Madagascar
          Tamatave (Toamasina) MGTMM Madagascar
          Andevoranto Madagascar
          Vatomandry MGVAT Madagascar

          Dams

          Reservoir Dam Name River Year
          Sahamaloto Sahamaloto 1958
          Antanifotsy Antanifotsy 1958
          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.

          ...

          TOP

          StormSurge

          0.2 m

          The maximum Storm surge height is  0.2m in Manambia, Madagascar. This height is estimated for 19 Jan 2023 16:00 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 (121 locations). Calculation based on advisory number 1 of 18 Jan 2023 04:00:00 UTC. (Simulation using 0.5 minute resolution)

          Alert Date (UTC) Name Country Storm surge height (m)
          19 Jan 2023 16:00 Manambia Madagascar  0.2
          19 Jan 2023 16:00 Anantoraka Madagascar  0.2
          19 Jan 2023 16:00 Maroantsetra Madagascar  0.2
          19 Jan 2023 17:00 Voloina Madagascar  0.2
          19 Jan 2023 17:00 Andranofotsy Madagascar  0.2
          19 Jan 2023 16:00 Ambodipont-Sahana Madagascar  0.2
          19 Jan 2023 14:00 Mahalevona Madagascar  0.2
          19 Jan 2023 16:00 Andrapengy Madagascar  0.2
          22 Jan 2023 01:00 Tampina Madagascar  0.2
          21 Jan 2023 07:00 Manehoko Madagascar  0.2
          21 Jan 2023 07:00 Antanimandry Madagascar  0.2
          21 Jan 2023 07:00 Ambodibonara Madagascar  0.2
          21 Jan 2023 07:00 Tanambao Madagascar  0.2
          21 Jan 2023 07:00 Anjabe Madagascar  0.2
          21 Jan 2023 07:00 Andranomena Madagascar  0.2
          21 Jan 2023 07:00 Andranofotsy Madagascar  0.2
          19 Jan 2023 16:00 Ilomotro Madagascar  0.2
          19 Jan 2023 16:00 Andohonko Madagascar  0.2
          19 Jan 2023 17:00 Rantabe Madagascar  0.2
          21 Jan 2023 11:00 Bobasakoa Madagascar  0.2
          22 Jan 2023 00:00 Andanivato Madagascar  0.2
          22 Jan 2023 00:00 Ambatojoby Madagascar  0.2
          22 Jan 2023 00:00 Andramy Madagascar  0.2
          22 Jan 2023 00:00 Marotaola Madagascar  0.2
          21 Jan 2023 07:00 Fadrina Madagascar  0.2
          19 Jan 2023 16:00 Amborimalana Madagascar  0.2
          22 Jan 2023 01:00 Ampanotoamaizina Madagascar  0.2
          19 Jan 2023 15:00 Ambanizana Madagascar  0.2
          19 Jan 2023 00:00 Ambodiatafa Madagascar  0.2
          21 Jan 2023 22:00 Bevoay Madagascar  0.2
          21 Jan 2023 22:00 Madirotelo Madagascar  0.2
          22 Jan 2023 04:00 Ananalava Madagascar  0.2
          19 Jan 2023 14:00 Benjana Madagascar  0.2
          19 Jan 2023 16:00 Maintimbato Madagascar  0.2
          21 Jan 2023 06:00 Antanamazava Madagascar  0.2
          21 Jan 2023 06:00 Ambatomainty Madagascar  0.2
          19 Jan 2023 16:00 Anoromby Madagascar  0.2
          19 Jan 2023 14:00 Antongompatatra Madagascar  0.2
          19 Jan 2023 14:00 Bemanevika Madagascar  0.2
          19 Jan 2023 14:00 Soanierana Ivongo Madagascar  0.2
          21 Jan 2023 22:00 Marokitrana Madagascar  0.2
          21 Jan 2023 06:00 Ambatobe Madagascar  0.1
          19 Jan 2023 14:00 Antohamaro Madagascar  0.1
          19 Jan 2023 17:00 Ampaha Madagascar  0.1
          19 Jan 2023 14:00 Andrangazaha Madagascar  0.1
          22 Jan 2023 01:00 Vavony Madagascar  0.1
          19 Jan 2023 16:00 Fananehana Madagascar  0.1
          19 Jan 2023 15:00 Tampolo Madagascar  0.1
          21 Jan 2023 05:00 Ambato Madagascar  0.1
          19 Jan 2023 17:00 Ankazomalemy Madagascar  0.1
          19 Jan 2023 15:00 Farahalana Madagascar  0.1
          21 Jan 2023 22:00 Ankarefo Madagascar  0.1
          21 Jan 2023 14:00 Anjiabe Madagascar  0.1
          19 Jan 2023 16:00 Manakalana Madagascar  0.1
          19 Jan 2023 16:00 Mahavanona Madagascar  0.1
          19 Jan 2023 17:00 Ampasina Madagascar  0.1
          19 Jan 2023 16:00 Antakobola Madagascar  0.1
          19 Jan 2023 16:00 Analanampotsy Madagascar  0.1
          19 Jan 2023 16:00 Ampasimbe Madagascar  0.1
          21 Jan 2023 22:00 Maromokotra Madagascar  0.1
          22 Jan 2023 04:00 Analalava Madagascar  0.1
          19 Jan 2023 15:00 Antalavia Madagascar  0.1
          19 Jan 2023 16:00 Manambolosy Madagascar  0.1
          19 Jan 2023 16:00 Fahambahy Madagascar  0.1
          19 Jan 2023 16:00 Tampolo Madagascar  0.1
          19 Jan 2023 14:00 Ampana Kanana Madagascar  0.1
          19 Jan 2023 17:00 Ambinany Madagascar  0.1
          21 Jan 2023 21:00 Marofinaritra Madagascar  0.1
          22 Jan 2023 02:00 Kalomalala Madagascar  0.1
          22 Jan 2023 01:00 Ambila-Lemaitso Madagascar  0.1
          21 Jan 2023 14:00 Mailakapasy Madagascar  0.1
          19 Jan 2023 16:00 Manompana Madagascar  0.1
          19 Jan 2023 16:00 Anjahamarina Madagascar  0.1
          21 Jan 2023 15:00 Antetezambaro Madagascar  0.1
          21 Jan 2023 15:00 Ambodihariha Madagascar  0.1
          19 Jan 2023 15:00 Rantranavona Madagascar  0.1
          19 Jan 2023 16:00 Ambanisanjo Madagascar  0.1
          19 Jan 2023 16:00 Andilamboahangy Madagascar  0.1
          19 Jan 2023 16:00 Mananara Madagascar  0.1
          19 Jan 2023 18:00 Antalaha Madagascar  0.1
          22 Jan 2023 04:00 Bejongoro Madagascar  0.1
          22 Jan 2023 04:00 Ampandrano Madagascar  0.1
          21 Jan 2023 22:00 Andrafialava Madagascar  0.1
          19 Jan 2023 16:00 Manambato Madagascar  0.1
          19 Jan 2023 16:00 Antanambe Madagascar  0.1
          19 Jan 2023 16:00 Fandrarazana Madagascar  0.1
          19 Jan 2023 16:00 Anorotsangana Madagascar  0.1
          21 Jan 2023 14:00 Antsahampano Madagascar  0.1
          21 Jan 2023 06:00 Mahambo Madagascar  0.1
          21 Jan 2023 06:00 Antsikafoka Madagascar  0.1
          19 Jan 2023 16:00 Ambohitralanana Madagascar  0.1
          21 Jan 2023 18:00 Tamatave Madagascar  0.1
          21 Jan 2023 09:00 Mahatsara Madagascar  0.1
          21 Jan 2023 09:00 Foulpointe Madagascar  0.1
          19 Jan 2023 19:00 Ratsianarana Madagascar  0.1
          19 Jan 2023 19:00 Ambodivato Madagascar  0.1
          21 Jan 2023 22:00 Mandrony Madagascar  0.1
          22 Jan 2023 03:00 Ampasibe Madagascar  0.1
          21 Jan 2023 05:00 Ambatoxavavy Madagascar  0.1
          21 Jan 2023 05:00 Andrafia Madagascar  0.1
          21 Jan 2023 06:00 Nosy Faly Madagascar  0.1
          21 Jan 2023 06:00 Ambaramidada Madagascar  0.1
          19 Jan 2023 14:00 Fampotabe Madagascar  0.1
          19 Jan 2023 17:00 Ampanakana Madagascar  0.1
          19 Jan 2023 17:00 Fararano Madagascar  0.1
          19 Jan 2023 17:00 Antsorokaka Madagascar  0.1
          19 Jan 2023 14:00 Sambava Madagascar  0.1
          21 Jan 2023 15:00 Reharaka Madagascar  0.1
          21 Jan 2023 15:00 Soahanina Madagascar  0.1
          19 Jan 2023 16:00 Ivontaka Madagascar  0.1
          19 Jan 2023 16:00 Seranambe Madagascar  0.1
          19 Jan 2023 17:00 Fenerive Madagascar  0.1
          21 Jan 2023 20:00 Mahatsara Madagascar  0.1
          22 Jan 2023 02:00 Amboditafara Madagascar  0.1
          19 Jan 2023 16:00 Vatobe Madagascar  0.1
          19 Jan 2023 16:00 Ambodimanga Madagascar  0.1
          19 Jan 2023 15:00 Anaovandrano Madagascar  0.1
          19 Jan 2023 15:00 Anjanozana Madagascar  0.1
          21 Jan 2023 08:00 Namahoaka Madagascar  0.1
          22 Jan 2023 01:00 Ampitabe Madagascar  0.1
          22 Jan 2023 02:00 Vohitramposina Madagascar  0.1