Overall Green alert Tropical Cyclone for SAOLA-17
in Japan
21 Oct 2017 06 UTC
click on to select bulletin time
  • GDACS JTWC
Impact Single TC
Impact based on all weather systems in the area

Impact

    Tropical Cyclone SAOLA-17 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

    Meteorological source GDACS
    Exposed countries Japan
    Exposed population No people in Category 1 or higher
    Maximum wind speed 176 km/h
    Maximum storm surge
    Vulnerability Low (Japan)

    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 102 km/h 0.0 m n.a. 0.5
    Overall 176 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

      102 km/h Current Max.

      Up to 220000 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 19 Oct 2017 18:00 65 No people No people
        Green 2 20 Oct 2017 00:00 111 No people No people
        Green 3 20 Oct 2017 06:00 83 210 thousand No people Northern Mariana Islands, Guam
        Green 4 20 Oct 2017 12:00 83 210 thousand No people Northern Mariana Islands, Guam
        Green 5 20 Oct 2017 18:00 83 160 thousand No people Guam
        Green 6 21 Oct 2017 00:00 83 160 thousand No people Guam
        Green 7 21 Oct 2017 06:00 102 220 thousand No people Guam, Northern Mariana 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 19 Oct 2017 18:00 Tropical depression 46 no people no people 12.2, 151.7
          GREEN
          		 2 20 Oct 2017 00:00 Tropical storm 65 no people no people 11.3, 151.8
          GREEN
          		 3 20 Oct 2017 06:00 Tropical storm 65 no people no people 11.7, 151.7
          GREEN
          		 4 20 Oct 2017 12:00 Tropical depression 56 no people no people 11.9, 151.4
          GREEN
          		 5 20 Oct 2017 18:00 Tropical depression 56 no people no people 12.1, 149.9
          GREEN
          		 6 21 Oct 2017 00:00 Tropical depression 56 no people no people 12.1, 149.6
          GREEN
          		 7 21 Oct 2017 06:00 Tropical depression 56 no people no people 12.1, 148.9
          GREEN
          		 7 21 Oct 2017 18:00 Tropical depression 56 no people no people 11.8, 148
          GREEN
          		 7 22 Oct 2017 06:00 Tropical depression 56 no people no people 11.3, 147.6
          GREEN
          		 7 22 Oct 2017 18:00 Tropical storm 65 no people 160000 people 10.7, 147.4 Guam
          GREEN
          		 7 23 Oct 2017 06:00 Tropical storm 65 no people 220000 people 10.3, 146.8 Northern Mariana Islands
          GREEN
          		 7 24 Oct 2017 06:00 Tropical storm 83 no people 170000 people 12.8, 142.7 Northern Mariana Islands
          GREEN
          		 7 25 Oct 2017 06:00 Tropical storm 93 no people no people 17, 138.1
          GREEN
          		 7 26 Oct 2017 06:00 Tropical storm 102 no people no people 20.2, 135.3
          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
          Guam
          Northern Mariana Is.

          Provinces

          Region Province Country
          Guam Guam
          Northern Mariana Is. Northern Mariana Islands

          Populated places

          Name Region Province Country City class Population
          Hagåtña Guam Capital 1000 people
          Saipan Northern Mariana Islands Capital 62000 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)
          Rota I International ROP 185 Civ. Paved Yes 6000
          Andersen AFB UAM 191 0
          A.B. Won Pat International GUM 91 0
          Dynasty 46 0
          West Tinian TIQ 82 Civ. Paved Yes 5900
          Saipan International SPN 66 Civ. Paved Yes 8700
          Nikko 18 0
          Commonwealth Health Center 5 0

          Ports

          Name LOCODE Country
          Rota Northern Mariana Islands
          Tinian Northern Mariana Islands
          Apra (Agana) GUAPR Guam
          Saipan MPSPN Northern Mariana Islands
          Apra Harbor Guam
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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 7 of 21 Oct 2017 06:00:00 UTC. (Simulation using 6 minute resolution)

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