Overall Green alert Tropical Cyclone for WALAKA-18
in United States Minor Outlying Islands
06 Oct 2018 15 UTC
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  • GDACS NOAA
Impact Single TC
  • GFS
  • HWRF
  • ECMWF
Impact based on all weather systems in the area

Impact

    Tropical Cyclone WALAKA-18 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

    Meteorological source GDACS
    Exposed countries United States Minor Outlying Islands
    Exposed population No people in Category 1 or higher
    Maximum wind speed 269 km/h
    Maximum storm surge
    Vulnerability -- ()

    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 83 km/h 0.0 m n.a. 0.5
    Overall 269 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

      83 km/h Current Max.

      Up to no 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 29 Sep 2018 21:00 204 No people No people United States Minor Outlying Islands
        Green 2 30 Sep 2018 03:00 204 No people No people United States Minor Outlying Islands
        Green 3 30 Sep 2018 09:00 204 No people No people United States Minor Outlying Islands
        Green 4 30 Sep 2018 15:00 222 No people No people United States Minor Outlying Islands
        Green 5 30 Sep 2018 21:00 222 No people No people United States Minor Outlying Islands
        Green 6 01 Oct 2018 03:00 222 No people No people United States Minor Outlying Islands
        Green 7 01 Oct 2018 09:00 250 No people No people United States Minor Outlying Islands
        Green 8 01 Oct 2018 15:00 259 No people No people United States Minor Outlying Islands
        Green 9 01 Oct 2018 21:00 269 No people No people United States Minor Outlying Islands
        Green 10 02 Oct 2018 03:00 269 No people No people United States Minor Outlying Islands
        Green 11 02 Oct 2018 09:00 259 No people No people United States Minor Outlying Islands
        Green 12 02 Oct 2018 15:00 250 No people No people United States Minor Outlying Islands
        Green 14 03 Oct 2018 03:00 213 No people No people United States Minor Outlying Islands
        Green 15 03 Oct 2018 09:00 213 No people No people United States Minor Outlying Islands
        Green 16 03 Oct 2018 15:00 222 No people No people United States Minor Outlying Islands
        Green 17 03 Oct 2018 21:00 222 No people No people United States Minor Outlying Islands
        Green 18 04 Oct 2018 03:00 204 No people No people United States Minor Outlying Islands
        Green 19 04 Oct 2018 09:00 204 No people No people United States Minor Outlying Islands
        Green 20 04 Oct 2018 15:00 176 No people No people United States Minor Outlying Islands
        Green 21 04 Oct 2018 21:00 148 No people No people United States Minor Outlying Islands
        Green 22 05 Oct 2018 03:00 120 No people No people United States Minor Outlying Islands
        Green 23 05 Oct 2018 09:00 111 No people No people United States Minor Outlying Islands
        Green 24 05 Oct 2018 15:00 102 No people No people United States Minor Outlying Islands
        Green 25 05 Oct 2018 21:00 83 No people No people United States Minor Outlying Islands
        Green 26 06 Oct 2018 03:00 74 No people No people United States Minor Outlying Islands
        Green 27 06 Oct 2018 09:00 74 No people No people United States Minor Outlying Islands
        Green 28 06 Oct 2018 15:00 83 No people No people United States Minor Outlying Islands

        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 29 Sep 2018 21:00 Tropical storm 65 no people no people 11.5, -159.1
          GREEN
          		 2 30 Sep 2018 03:00 Tropical storm 65 no people no people 11.4, -160.5
          GREEN
          		 3 30 Sep 2018 09:00 Tropical storm 65 no people no people 11.6, -162.1
          GREEN
          		 4 30 Sep 2018 15:00 Tropical storm 93 no people no people 11.7, -163.9
          GREEN
          		 5 30 Sep 2018 21:00 Tropical storm 102 no people no people 11.9, -165.2
          GREEN
          		 6 01 Oct 2018 03:00 Category 1 120 no people no people 11.9, -166.4
          GREEN
          		 7 01 Oct 2018 09:00 Category 2 167 no people no people 11.9, -167.5
          GREEN
          		 8 01 Oct 2018 15:00 Category 3 204 no people no people 12.3, -168.3
          GREEN
          		 9 01 Oct 2018 21:00 Category 4 241 no people no people 12.9, -169.3
          GREEN
          		 10 02 Oct 2018 03:00 Category 5 259 no people no people 13.2, -169.8 United States Minor Outlying Islands
          GREEN
          		 11 02 Oct 2018 09:00 Category 5 259 no people no people 13.7, -170 United States Minor Outlying Islands
          GREEN
          		 12 02 Oct 2018 15:00 Category 4 250 no people no people 14.7, -170 United States Minor Outlying Islands
          GREEN
          		 14 03 Oct 2018 03:00 Category 4 213 no people no people 16.7, -170.2 United States Minor Outlying Islands
          GREEN
          		 15 03 Oct 2018 09:00 Category 4 213 no people no people 18.1, -170 United States Minor Outlying Islands
          GREEN
          		 16 03 Oct 2018 15:00 Category 4 222 no people no people 19.6, -169.4 United States Minor Outlying Islands
          GREEN
          		 17 03 Oct 2018 21:00 Category 4 222 no people no people 21.4, -168.5
          GREEN
          		 18 04 Oct 2018 03:00 Category 3 204 no people no people 23.1, -167.9
          GREEN
          		 19 04 Oct 2018 09:00 Category 3 204 no people no people 24.8, -166.7
          GREEN
          		 20 04 Oct 2018 15:00 Category 2 176 no people no people 26.8, -166.5
          GREEN
          		 21 04 Oct 2018 21:00 Category 1 148 no people no people 28.8, -166.3
          GREEN
          		 22 05 Oct 2018 03:00 Category 1 120 no people no people 30.2, -168
          GREEN
          		 23 05 Oct 2018 09:00 Tropical storm 111 no people no people 30.6, -168.3
          GREEN
          		 24 05 Oct 2018 15:00 Tropical storm 102 no people no people 31.5, -168.3
          GREEN
          		 25 05 Oct 2018 21:00 Tropical storm 83 no people no people 32.2, -167.8
          GREEN
          		 26 06 Oct 2018 03:00 Tropical storm 74 no people no people 32.9, -166.6
          GREEN
          		 27 06 Oct 2018 09:00 Tropical storm 74 no people no people 34.2, -165.1
          GREEN
          		 28 06 Oct 2018 15:00 Tropical storm 83 no people no people 36.2, -163.5
          GREEN
          		 28 07 Oct 2018 00:00 Tropical storm 74 no people no people 41, -160.5
          GREEN
          		 28 07 Oct 2018 12:00 Tropical storm 65 no people no people 48, -154
          GREEN
          		 28 08 Oct 2018 00:00 Tropical storm 65 no people no people 55, -148
          Actual track of the current bulletin
          The alert for forecast greater than 3 days is limited to Orange level.
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          Exposed population - AoIs

          Exposed population in the potential affected countries, provinces and populated places

          Countries

          Country
          Johnston Atoll

          Provinces

          Region Province Country
          Johnston Atoll United States Minor Outlying Islands

          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)
          French Frigate Shoals 2 Civ. Unpaved No 3000
          Johnston Atoll JON 2 0

          Ports

          Name LOCODE Country
          Tern Island Wake Island
          Johnston Atoll 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

          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 12 of 02 Oct 2018 15:00:00 UTC. (Simulation using 6 minute resolution)

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