Overall Red alert Tropical Cyclone for IRMA-17
in United States, Bahamas, Cuba, Turks and Caicos Islands, Dominican Republic, Puerto Rico, Virgin Islands, U.S., British, Anguilla, Saint Kitts and Nevis, Antigua and Barbuda, Guadeloupe, Montserrat,
02 Sep 2017 09 UTC
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  • GDACS NOAA
Impact Single TC
Impact based on all weather systems in the area

Impact

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

    Meteorological source GDACS
    Exposed countries United States, Bahamas, Cuba, Turks and Caicos Islands, Dominican Republic, Puerto Rico, Virgin Islands, U.S., British, Anguilla, Saint Kitts and Nevis, Antigua and Barbuda, Guadeloupe, Montserrat,
    Exposed population 16.4 million in Category 1 or higher
    Maximum wind speed 296 km/h
    Maximum storm surge 0.2 m (06 Sep 08:00 UTC)
    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 213 km/h 0.2 m n.a. 0.5
    Overall 296 km/h 0.2 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

      213 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 30 Aug 2017 15:00 148 No people No people
        Green 2 30 Aug 2017 21:00 167 No people No people
        Green 3 31 Aug 2017 03:00 194 No people No people
        Green 4 31 Aug 2017 09:00 194 No people No people
        Green 5 31 Aug 2017 15:00 213 No people No people
        Green 6 31 Aug 2017 21:00 222 No people No people
        Green 7 01 Sep 2017 03:00 222 No people No people
        Green 8 01 Sep 2017 09:00 222 No people No people
        Green 9 01 Sep 2017 15:00 204 20 thousand No people Guadeloupe, Antigua and Barbuda
        Green 10 01 Sep 2017 21:00 213 220 thousand No people Antigua and Barbuda, Saint Kitts and Nevis, Anguilla
        Green 11 02 Sep 2017 03:00 213 50 thousand No people Antigua and Barbuda, Anguilla
        Green 12 02 Sep 2017 09:00 213 330 thousand No people Antigua and Barbuda, Saint Kitts and Nevis, Anguilla, Virgin Islands, British, Virgin Islands, U.S.

        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 30 Aug 2017 15:00 Tropical storm 83 no people no people 16.4, -30.3
          GREEN
          		 2 30 Aug 2017 21:00 Tropical storm 93 no people no people 16.4, -31.2
          GREEN
          		 3 31 Aug 2017 03:00 Tropical storm 102 no people no people 16.4, -32.2
          GREEN
          		 4 31 Aug 2017 09:00 Tropical storm 111 no people no people 16.5, -32.9
          GREEN
          		 5 31 Aug 2017 15:00 Category 2 157 no people no people 16.9, -33.8
          GREEN
          		 6 31 Aug 2017 21:00 Category 3 185 no people no people 17.3, -34.8
          GREEN
          		 7 01 Sep 2017 03:00 Category 3 185 no people no people 17.8, -35.6
          GREEN
          		 8 01 Sep 2017 09:00 Category 3 185 no people no people 18.2, -36.5
          GREEN
          		 9 01 Sep 2017 15:00 Category 2 176 no people no people 18.5, -37.8
          GREEN
          		 10 01 Sep 2017 21:00 Category 3 194 no people no people 18.8, -39.1
          GREEN
          		 11 02 Sep 2017 03:00 Category 3 185 no people no people 19.1, -40.5
          GREEN
          		 12 02 Sep 2017 09:00 Category 2 176 no people no people 19, -41.8
          GREEN
          		 12 02 Sep 2017 18:00 Category 3 185 no people no people 18.8, -43.7
          GREEN
          		 12 03 Sep 2017 06:00 Category 3 185 no people no people 18.3, -46.1
          GREEN
          		 12 03 Sep 2017 18:00 Category 3 194 no people no people 17.7, -48.3
          GREEN
          		 12 04 Sep 2017 06:00 Category 3 204 no people no people 17.1, -50.4
          GREEN
          		 12 05 Sep 2017 06:00 Category 3 204 no people <1000 people 17, -54.7 Antigua and Barbuda
          GREEN
          		 12 06 Sep 2017 06:00 Category 4 213 no people 330000 people 18.4, -59.3 Virgin Islands, British
          GREEN
          		 12 07 Sep 2017 06:00 Category 4 213 no people no people 21, -64.5
          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

          0.2 m

          The maximum Storm surge height is  0.2m in Barnes Hill, Antigua and Barbuda. This height is estimated for 06 Sep 2017 08:00 UTC .

          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 (29 locations). Calculation based on advisory number 12 of 02 Sep 2017 09:00:00 UTC. (Simulation using 0.5 minute resolution)

          Alert Date (UTC) Name Country Storm surge height (m)
          06 Sep 2017 08:00 Barnes Hill Antigua and Barbuda  0.2
          06 Sep 2017 09:00 Dickenson Bay Antigua and Barbuda  0.1
          06 Sep 2017 09:00 Boons Bay Antigua and Barbuda  0.1
          06 Sep 2017 09:00 Cedar Grove Antigua and Barbuda  0.1
          06 Sep 2017 09:00 Annaberg Virgin Islands  0.1
          06 Sep 2017 09:00 Hermitage Virgin Islands  0.1
          06 Sep 2017 09:00 Bordeaux Virgin Islands  0.1
          06 Sep 2017 09:00 Jolly Harbour Antigua and Barbuda  0.1
          06 Sep 2017 09:00 Bolans Antigua and Barbuda  0.1
          06 Sep 2017 09:00 Urlings Antigua and Barbuda  0.1
          06 Sep 2017 09:00 Jennings Antigua and Barbuda  0.1
          06 Sep 2017 09:00 Ebenezer Antigua and Barbuda  0.1
          06 Sep 2017 09:00 Creekside Antigua and Barbuda  0.1
          06 Sep 2017 09:00 Golden Grove Antigua and Barbuda  0.1
          06 Sep 2017 09:00 Saint Johnston Village Antigua and Barbuda  0.1
          06 Sep 2017 09:00 Potters Village Antigua and Barbuda  0.1
          06 Sep 2017 09:00 Osbourn Antigua and Barbuda  0.1
          06 Sep 2017 08:00 Willikies Antigua and Barbuda  0.1
          06 Sep 2017 09:00 Five Islands Antigua and Barbuda  0.1
          06 Sep 2017 09:00 Runaway Bay Antigua and Barbuda  0.1
          06 Sep 2017 09:00 Saint John's Antigua and Barbuda  0.1
          06 Sep 2017 09:00 Falmouth Harbour Antigua and Barbuda  0.1
          06 Sep 2017 09:00 Cobbs Cross Antigua and Barbuda  0.1
          06 Sep 2017 09:00 English Harbour Antigua and Barbuda  0.1
          06 Sep 2017 09:00 Pares Antigua and Barbuda  0.1
          06 Sep 2017 09:00 Betty's Hope Antigua and Barbuda  0.1
          06 Sep 2017 09:00 Newfield Antigua and Barbuda  0.1
          06 Sep 2017 09:00 Half Moon Bay Antigua and Barbuda  0.1
          06 Sep 2017 09:00 John Hughes Antigua and Barbuda  0.1