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
23 Sep 2021 03 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 46 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

      46 km/h Current Max.

      Up to 2.2 million 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
        Green 9 20 Sep 2021 21:00 83 No people No people
        Green 10 21 Sep 2021 03:00 83 220 thousand No people Anguilla, Virgin Islands British, Antigua and Barbuda, Saint Kitts and Nevis, Virgin Islands U.S.
        Green 11 21 Sep 2021 09:00 83 2 million No people Virgin Islands British, Anguilla, Virgin Islands U.S., Puerto Rico, Saint Kitts and Nevis, Antigua and Barbuda
        Green 12 21 Sep 2021 15:00 65 2.2 million No people Virgin Islands British, Virgin Islands U.S., Puerto Rico, Anguilla, Saint Kitts and Nevis, Antigua and Barbuda
        Green 13 21 Sep 2021 21:00 56 2.2 million No people Virgin Islands British, Virgin Islands U.S., Puerto Rico, Anguilla, Saint Kitts and Nevis, Antigua and Barbuda
        Green 14 22 Sep 2021 03:00 56 2.2 million No people Puerto Rico, Virgin Islands British, Virgin Islands U.S., Anguilla, Saint Kitts and Nevis, Antigua and Barbuda
        Green 15 22 Sep 2021 09:00 56 2.2 million No people Puerto Rico, Virgin Islands U.S., Virgin Islands British, Anguilla, Saint Kitts and Nevis, Antigua and Barbuda
        Green 16 22 Sep 2021 15:00 56 2.2 million No people Puerto Rico, Virgin Islands U.S., Virgin Islands British, Anguilla, Saint Kitts and Nevis, Antigua and Barbuda
        Green 17 22 Sep 2021 21:00 56 2.2 million No people Puerto Rico, Virgin Islands U.S., Virgin Islands British, Anguilla, Saint Kitts and Nevis, Antigua and Barbuda
        Green 18 23 Sep 2021 03:00 46 2.2 million No people Puerto Rico, Virgin Islands U.S., Virgin Islands British, Anguilla, Saint Kitts and Nevis, Antigua and Barbuda

        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 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 no people <1000 people 19.5, -60.9
          GREEN
          		 9 20 Sep 2021 21:00 Tropical storm 83 no people no people 20, -61.8
          GREEN
          		 10 21 Sep 2021 03:00 Tropical storm 83 no people 220000 people 19.8, -62.8
          GREEN
          		 11 21 Sep 2021 09:00 Tropical storm 83 no people 2 million people 19.6, -63.8
          GREEN
          		 12 21 Sep 2021 15:00 Tropical storm 65 no people 2 million people 19.9, -64.7
          GREEN
          		 13 21 Sep 2021 21:00 Tropical depression 56 no people no people 20.5, -65
          GREEN
          		 14 22 Sep 2021 03:00 Tropical depression 56 no people no people 20.8, -65.3
          GREEN
          		 15 22 Sep 2021 09:00 Tropical depression 56 no people no people 21.5, -66.1
          GREEN
          		 16 22 Sep 2021 15:00 Tropical depression 56 no people no people 21.6, -66.9
          GREEN
          		 17 22 Sep 2021 21:00 Tropical depression 56 no people no people 21.7, -66.7
          GREEN
          		 18 23 Sep 2021 03:00 Tropical depression 46 no people no people 22.1, -67
          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
          Puerto Rico
          Virgin Is.
          British Virgin Is.
          Anguilla
          St. Kitts & Nevis
          Antigua & Barbuda

          Provinces

          Region Province Country
          Arecibo Puerto Rico
          Bayamon Puerto Rico
          San Juan Puerto Rico
          Humacao Puerto Rico
          Guayama Puerto Rico
          Virgin Is. Virgin Islands U.S.
          British Virgin Is. Virgin Islands British
          Anguilla Anguilla
          St. Kitts & Nevis Saint Kitts and Nevis
          Antigua & Barbuda Antigua and Barbuda

          Populated places

          Name Region Province Country City class Population
          San Juan San Juan Puerto Rico Capital 420000 people
          Bayamon Bayamon Puerto Rico City 200000 people
          Guaynabo Guaynabo Puerto Rico City 79000 people
          Carolina Carolina Puerto Rico Major city 170000 people
          Charlotte Amalie Virgin Islands Capital 10000 people
          Road Town British Virgin Islands Capital 8300 people
          The Valley Anguilla Capital 1400 people
          Philipsburg Netherlands Antilles City 6400 people
          Gustavia Guadeloupe City -
          Basseterre St. Kitts and Nevis Capital 13000 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)
          Dorado 23 0
          Isla Grande SIG 3 Civ. Paved Yes 5300
          State Government Number One 82 0
          Rexach Office Building 18 0
          Luis Munoz Marin International SJU 3 Civ. Paved Yes 10000
          Prtc Office Building 53 0
          Prasa-Barbosa 50 0
          Prasa - La Plata 110 0
          Bayamon Regional Hospital 34 0
          Fajardo Harbor unknown 0
          Diego Jimenez Torres FAJ 20 Civ. Paved No 3600
          Boqueron 114 0
          Roosevelt Roads Ns NRR 12 Mil. Paved Yes 11000
          Benjamin Rivera Noriega CPX 15 0
          Humacao 10 0
          Anegada NGD unknown 0
          Vieques VQS 14 Civ. Paved No 3400
          H.S. Truman STT 5 Civ. Paved Yes 7000
          Stouffer Grand Beach Resort 38 0
          Camp Garcia Vieques 14 0
          Frenchman's Reef 6 0
          Cruz Bay unknown 0
          St. John SJF unknown 0
          Beef Island EIS 5 Civ. Paved Yes 3600
          North Sound Virgin Gorda NSX unknown 0
          Virgin Gorda VIJ 4 Civ. Unpaved No 3100
          Christiansted Harbor- SSB unknown 0
          Alexander Hamilton STX 19 Civ. Paved Yes 7600
          Wallblake AXA 33 Civ. Paved Yes 3600
          Grand Case CCE 2 Civ. Paved No 3900
          Prinses Juliana SXM 4 Civ. Paved Yes 7000
          St. Barthelemy SBH unknown Civ. Paved No 2100
          F D Roosevelt EUX 38 Civ. Paved Yes 4200
          Golden Rock SKB 52 Civ. Paved Yes 8000
          Barbuda Codrington BBQ unknown 0

          Ports

          Name LOCODE Country
          San Juan PRSJU Puerto Rico
          Fajardo Puerto Rico
          Ensenada Honda Puerto Rico
          Naguabo Puerto Rico
          Puerto de Humacao Puerto Rico
          Culebra Puerto Rico
          Anegada Island British Virgin Islands
          Yabucoa PRPYA Puerto Rico
          Isabel Segunda Puerto Rico
          Charlotte Amalie VISTT Virgin Islands
          Cruz Bay Virgin Islands
          Road Harbour & Port Purcell British Virgin Islands
          Virgin Gorda Island British Virgin Islands
          Frederiksted VIFRD Virgin Islands
          Christiansted VICTD Virgin Islands
          Limetree Bay VILIB Virgin Islands
          Hovic VIHOC Virgin Islands
          Blowing Point AIBLP Anguilla
          Marigot Guadeloupe
          Philipsburg ANPHI Netherlands Antilles
          Gustavia GPGUS Guadeloupe
          Oranjestad Netherlands Antilles
          Basseterre KNBAS Saint Kitts and Nevis
          Barbuda AGBBQ Antigua and Barbuda

          Dams

          Reservoir Dam Name River Year
          La Plata La Plata 1974
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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 11 of 21 Sep 2021 09:00:00 UTC. (Simulation using 0.5 minute resolution)

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