Overall Green alert Tropical Cyclone for MERBOK-22
in United States
12 Sep 2022 12 UTC
click on to select bulletin time
  • GDACS JTWC
Impact Single TC
Impact based on all weather systems in the area

Impact

    Tropical Cyclone MERBOK-22 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

    Meteorological source GDACS
    Exposed countries United States
    Exposed population No people in Category 1 or higher
    Maximum wind speed 130 km/h
    Maximum storm surge n.a.
    Vulnerability Low (United States)

    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 157 km/h n.a. n.a. 0.5
    Overall 130 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

      157 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 Sep 2022 18:00 139 No people No people
        Green 2 11 Sep 2022 00:00 139 No people No people
        Green 3 11 Sep 2022 06:00 157 No people No people
        Green 4 11 Sep 2022 12:00 148 No people No people
        Green 5 11 Sep 2022 18:00 157 No people No people
        Green 6 12 Sep 2022 00:00 157 No people No people
        Green 7 12 Sep 2022 06:00 157 No people No people United States
        Green 8 12 Sep 2022 12:00 157 Few people No people United States

        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 Sep 2022 18:00 Tropical depression 56 no people no people 20.9, 159.8
          GREEN
          		 2 11 Sep 2022 00:00 Tropical depression 56 no people no people 21.2, 159.5
          GREEN
          		 3 11 Sep 2022 06:00 Tropical depression 56 no people no people 21.3, 159.8
          GREEN
          		 4 11 Sep 2022 12:00 Tropical storm 65 no people no people 21.1, 160.4
          GREEN
          		 5 11 Sep 2022 18:00 Tropical storm 65 no people no people 21.5, 161
          GREEN
          		 6 12 Sep 2022 00:00 Tropical storm 65 no people no people 21.4, 161.4
          GREEN
          		 7 12 Sep 2022 06:00 Tropical storm 65 no people no people 21.9, 161.9
          GREEN
          		 8 12 Sep 2022 12:00 Tropical storm 83 no people no people 22.6, 162.5
          GREEN
          		 8 13 Sep 2022 00:00 Tropical storm 102 no people no people 23.8, 163
          GREEN
          		 8 13 Sep 2022 12:00 Category 1 120 no people no people 25.7, 162.9
          GREEN
          		 8 14 Sep 2022 00:00 Category 1 130 no people no people 27.7, 162.6
          GREEN
          		 8 14 Sep 2022 12:00 Category 1 139 no people no people 30.5, 162.6
          GREEN
          		 8 15 Sep 2022 12:00 Category 2 157 no people <1000 people 40.4, 168.8
          GREEN
          		 8 16 Sep 2022 12:00 Tropical storm 102 no people no people 53.1, -179.9
          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
          United States

          Provinces

          Region Province Country
          Alaska United States

          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)
          Amchitka Island AHT 69 0

          Ports

          Name LOCODE Country
          Constantine Harbour Wake Island
          Amchitka Island Wake Island
          Semisopochroi Wake Island
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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

          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.