Overall Green alert Tropical Cyclone for PETER-21
in Puerto Rico, Virgin Islands U.S., Virgin Islands British, Anguilla, Saint Kitts and Nevis, Antigua and Barbuda
20 Sep 2021 15 UTC
click on to select bulletin time
  • GDACS NOAA
Impact Single TC
Impact based on all weather systems in the area

Impact

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

    Meteorological source GDACS
    Exposed countries Puerto Rico, Virgin Islands U.S., Virgin Islands British, Anguilla, Saint Kitts and Nevis, Antigua and Barbuda
    Exposed population No people in Category 1 or higher
    Maximum wind speed 83 km/h
    Maximum storm surge
    Vulnerability Medium (Anguilla)

    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 83 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 <1000 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 Sep 2021 03:00 74 No people No people
        Green 2 19 Sep 2021 09:00 74 No people No people
        Green 3 19 Sep 2021 13:00 74 No people No people
        Green 4 19 Sep 2021 15:00 74 30 thousand No people Antigua and Barbuda, Anguilla
        Green 5 19 Sep 2021 21:00 74 No people No people
        Green 6 20 Sep 2021 03:00 83 20 thousand No people Antigua and Barbuda, Anguilla
        Green 7 20 Sep 2021 09:00 83 Few people No people Anguilla
        Green 8 20 Sep 2021 15:00 83 Few people No people Anguilla

        Bulletin Timeline

          Alert N° Date (UTC) Category
          (SSHS)           		Max winds
          (km/h)           		Population in
          Tropical Storm
          or higher           		Population in
          Cat.1 or higher           		Location (lat, lon) Countries
          GREEN
          		 1 19 Sep 2021 03:00 Tropical depression 56 no people no people 16.4, -53.1
          GREEN
          		 2 19 Sep 2021 09:00 Tropical storm 65 no people no people 18, -53.5
          GREEN
          		 3 19 Sep 2021 13:00 Tropical storm 74 no people no people 17.6, -56
          GREEN
          		 4 19 Sep 2021 15:00 Tropical storm 74 no people no people 17.6, -56.5
          GREEN
          		 5 19 Sep 2021 21:00 Tropical storm 74 no people no people 18.4, -57.8
          GREEN
          		 6 20 Sep 2021 03:00 Tropical storm 83 no people no people 18.6, -58.5
          GREEN
          		 7 20 Sep 2021 09:00 Tropical storm 83 no people no people 19.1, -59.5
          GREEN
          		 8 20 Sep 2021 15:00 Tropical storm 83 <1000 people no people 19.5, -60.9
          GREEN
          		 8 21 Sep 2021 00:00 Tropical storm 74 no people no people 20.1, -62.7
          GREEN
          		 8 21 Sep 2021 12:00 Tropical storm 74 no people no people 20.8, -64.8
          GREEN
          		 8 22 Sep 2021 00:00 Tropical storm 65 no people no people 21.8, -66.6
          GREEN
          		 8 22 Sep 2021 12:00 Tropical storm 65 no people no people 22.7, -67.9
          GREEN
          		 8 23 Sep 2021 00:00 Tropical depression 56 no people no people 23.5, -68.6
          GREEN
          		 8 23 Sep 2021 12:00 Tropical depression 56 no people no people 24.5, -68.7
          GREEN
          		 8 24 Sep 2021 12:00 Tropical depression 56 no people no people 26.5, -67.6
          GREEN
          		 8 25 Sep 2021 12:00 Tropical storm 65 no people no people 28.6, -66.4
          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
          Anguilla

          Provinces

          Region Province Country Population
          Anguilla Anguilla 9200 people

          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 8 of 20 Sep 2021 15:00:00 UTC. (Simulation using 0.5 minute resolution)

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