Overall Green alert Tropical Cyclone for OMAIS-21
in Japan, Marshall Islands
15 Aug 2021 00 UTC
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  • GDACS JTWC
Impact Single TC
Impact based on all weather systems in the area

Impact

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

    Meteorological source GDACS
    Exposed countries Japan, Marshall Islands
    Exposed population No people in Category 1 or higher
    Maximum wind speed 93 km/h
    Maximum storm surge
    Vulnerability High (Marshall Is.)

    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 139 km/h 0.0 m n.a. 0.5
    Overall 93 km/h 0.0 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

      139 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 10 Aug 2021 12:00 65 No people No people
        Green 2 10 Aug 2021 18:00 65 No people No people
        Green 3 11 Aug 2021 00:00 65 No people No people
        Green 4 11 Aug 2021 06:00 65 No people No people
        Green 5 11 Aug 2021 12:00 56 No people No people
        Green 6 11 Aug 2021 18:00 56 No people No people
        Green 7 12 Aug 2021 00:00 56 No people No people
        Green 8 12 Aug 2021 06:00 56 No people No people
        Green 9 12 Aug 2021 12:00 74 No people No people
        Green 10 12 Aug 2021 18:00 74 4 thousand No people Guam
        Green 11 13 Aug 2021 00:00 83 160 thousand No people Guam
        Green 12 13 Aug 2021 06:00 111 170 thousand No people Guam
        Green 13 13 Aug 2021 12:00 120 170 thousand No people Guam
        Green 14 13 Aug 2021 18:00 120 170 thousand No people Guam
        Green 15 14 Aug 2021 00:00 130 160 thousand No people Guam
        Green 16 14 Aug 2021 06:00 139 170 thousand No people Marshall Islands, Guam
        Green 17 14 Aug 2021 12:00 139 170 thousand No people Marshall Islands, Guam
        Green 18 14 Aug 2021 18:00 139 170 thousand No people Marshall Islands, Guam
        Green 19 15 Aug 2021 00:00 139 160 thousand No people Marshall Islands, Guam

        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 10 Aug 2021 12:00 Tropical depression 46 no people no people 12.2, 179
          GREEN
          		 2 10 Aug 2021 18:00 Tropical depression 56 no people no people 12.3, 178
          GREEN
          		 3 11 Aug 2021 00:00 Tropical depression 56 no people no people 12.3, 177.2
          GREEN
          		 4 11 Aug 2021 06:00 Tropical depression 56 no people no people 12.4, 176.6
          GREEN
          		 5 11 Aug 2021 12:00 Tropical depression 56 no people no people 12.1, 175.9
          GREEN
          		 6 11 Aug 2021 18:00 Tropical depression 56 no people no people 12.1, 175
          GREEN
          		 7 12 Aug 2021 00:00 Tropical depression 46 no people no people 12.1, 174
          GREEN
          		 8 12 Aug 2021 06:00 Tropical depression 46 no people no people 12.8, 172.7
          GREEN
          		 9 12 Aug 2021 12:00 Tropical depression 56 no people no people 12.6, 171.3
          GREEN
          		 10 12 Aug 2021 18:00 Tropical depression 56 no people no people 12.6, 169.9
          GREEN
          		 11 13 Aug 2021 00:00 Tropical storm 65 no people no people 12.7, 168.6
          GREEN
          		 12 13 Aug 2021 06:00 Tropical storm 65 no people no people 12.8, 167
          GREEN
          		 13 13 Aug 2021 12:00 Tropical storm 65 no people no people 12.8, 166.2
          GREEN
          		 14 13 Aug 2021 18:00 Tropical depression 56 no people no people 12.5, 164.9
          GREEN
          		 15 14 Aug 2021 00:00 Tropical depression 56 no people no people 12.5, 163.2
          GREEN
          		 16 14 Aug 2021 06:00 Tropical storm 65 no people <1000 people 12.3, 161.7
          GREEN
          		 17 14 Aug 2021 12:00 Tropical storm 65 no people no people 12.3, 160.3
          GREEN
          		 18 14 Aug 2021 18:00 Tropical storm 65 no people no people 12.3, 159
          GREEN
          		 19 15 Aug 2021 00:00 Tropical depression 56 no people no people 12.5, 157
          GREEN
          		 19 15 Aug 2021 12:00 Tropical depression 56 no people no people 12.7, 153.9
          GREEN
          		 19 16 Aug 2021 00:00 Tropical storm 65 no people no people 12.9, 150.9
          GREEN
          		 19 16 Aug 2021 12:00 Tropical storm 74 no people 160000 people 13, 147.9
          GREEN
          		 19 17 Aug 2021 00:00 Tropical storm 83 no people 160000 people 13.2, 145.1
          GREEN
          		 19 18 Aug 2021 00:00 Tropical storm 102 no people no people 14.2, 140.2
          GREEN
          		 19 19 Aug 2021 00:00 Tropical storm 111 no people no people 15.8, 135.6
          GREEN
          		 19 20 Aug 2021 00:00 Category 1 139 no people no people 17.9, 131.2
          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 m

          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 (0 locations). Calculation based on advisory number 4 of 11 Aug 2021 06:00:00 UTC. (Simulation using 0.5 minute resolution)

          Alert Date (UTC) Name Country Storm surge height (m)