Overall Green alert Tropical Cyclone for JOBO-21
in Tanzania, Seychelles
21 Apr 2021 00 UTC
click on to select bulletin time
  • GDACS JTWC
Impact Single TC
Impact based on all weather systems in the area

Impact

    Tropical Cyclone JOBO-21 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

    Meteorological source GDACS
    Exposed countries Tanzania, Seychelles
    Exposed population No people in Category 1 or higher
    Maximum wind speed 111 km/h
    Maximum storm surge 0.2 m (24 Apr 02:00 UTC)
    Vulnerability Medium (Tanzania)
    Landfall between
    25 Apr 2021 00:00 - 26 Apr 2021 00:00
    in Tanzania

    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 130 km/h 0.2 m n.a. 0.5
    Overall 111 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 GDACS impact

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    Wind

      130 km/h Current Max.

      Up to no 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 21 Apr 2021 00:00 130 580 thousand No people Seychelles, Tanzania

        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 21 Apr 2021 00:00 Tropical storm 83 no people <1000 people -10, 48.8
          GREEN
          		 1 21 Apr 2021 12:00 Tropical storm 111 <1000 people <1000 people -9.7, 47.3
          GREEN
          		 1 22 Apr 2021 00:00 Category 1 130 no people <1000 people -9.5, 45.7
          GREEN
          		 1 22 Apr 2021 12:00 Category 1 130 no people no people -9.3, 44.7
          GREEN
          		 1 23 Apr 2021 00:00 Tropical storm 111 no people no people -9.1, 43.9
          GREEN
          		 1 24 Apr 2021 00:00 Tropical storm 83 no people 220000 people -8.7, 42.3
          GREEN
          		 1 25 Apr 2021 00:00 Tropical storm 93 no people 580000 people -8.4, 40.2
          GREEN
          		 1 26 Apr 2021 00:00 Tropical depression 56 no people no people -8.5, 37.7 Tanzania
          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

          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

          0.2 m

          The maximum Storm surge height is  0.2m in Palma, Mozambique. This height is estimated for 24 Apr 2021 02:00 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 (20 locations). Calculation based on advisory number 1 of 21 Apr 2021 00:00:00 UTC. (Simulation using 0.5 minute resolution)

          Alert Date (UTC) Name Country Storm surge height (m)
          24 Apr 2021 02:00 Palma Mozambique  0.2
          25 Apr 2021 00:00 Mkarangama Tanzania  0.2
          25 Apr 2021 00:00 Kipingwe Tanzania  0.2
          24 Apr 2021 01:00 Meronvi Mozambique  0.2
          24 Apr 2021 01:00 Quissengue Mozambique  0.2
          25 Apr 2021 00:00 Kilindoni Tanzania  0.2
          25 Apr 2021 00:00 Kirongwe Tanzania  0.2
          25 Apr 2021 00:00 Mwera Tanzania  0.2
          24 Apr 2021 11:00 Libambai Mozambique  0.2
          24 Apr 2021 11:00 Vila de Mocimboa da Praia Mozambique  0.1
          25 Apr 2021 00:00 Chole Tanzania  0.1
          25 Apr 2021 00:00 Jimbo Tanzania  0.1
          24 Apr 2021 13:00 Bawala Mozambique  0.1
          24 Apr 2021 13:00 Olumbe Mozambique  0.1
          24 Apr 2021 11:00 Maganja Mozambique  0.1
          25 Apr 2021 00:00 Kiombani Tanzania  0.1
          25 Apr 2021 00:00 Jaja Tanzania  0.1
          25 Apr 2021 00:00 Mbwera Tanzania  0.1
          25 Apr 2021 00:00 Kiechuru Tanzania  0.1
          24 Apr 2021 11:00 Boala Mozambique  0.1