Overall Green alert Tropical Cyclone for HENRI-21
in United States
17 Aug 2021 09 UTC
click on to select bulletin time
  • GDACS NOAA
Impact Single TC
Impact based on all weather systems in the area

Impact

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

    Meteorological source GDACS
    Exposed countries United States
    Exposed population 90 thousand in Category 1 or higher
    Maximum wind speed 120 km/h
    Maximum storm surge 0.1 m (21 Aug 09:00 UTC)
    Vulnerability Low (United States)

    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 0.1 m n.a. 0.5
    Overall 120 km/h 0.1 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 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 16 Aug 2021 03:00 102 No people No people
        Green 2 16 Aug 2021 09:00 102 No people No people
        Green 3 16 Aug 2021 15:00 102 No people No people
        Green 4 16 Aug 2021 21:00 93 No people No people
        Green 5 17 Aug 2021 03:00 93 No people No people
        Green 6 17 Aug 2021 09:00 102 No people No people

        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 16 Aug 2021 03:00 Tropical depression 46 no people no people 33.2, -62.7
          GREEN
          		 2 16 Aug 2021 09:00 Tropical depression 56 no people no people 32.4, -62.9
          GREEN
          		 3 16 Aug 2021 15:00 Tropical depression 56 no people no people 31.3, -62.8
          GREEN
          		 4 16 Aug 2021 21:00 Tropical storm 65 no people no people 31, -62.9
          GREEN
          		 5 17 Aug 2021 03:00 Tropical storm 74 no people no people 30.7, -63.3
          GREEN
          		 6 17 Aug 2021 09:00 Tropical storm 83 no people no people 30.6, -63.7
          GREEN
          		 6 17 Aug 2021 18:00 Tropical storm 93 no people no people 30.4, -64.4
          GREEN
          		 6 18 Aug 2021 06:00 Tropical storm 102 no people no people 30.3, -65.7
          GREEN
          		 6 18 Aug 2021 18:00 Tropical storm 102 no people no people 30.2, -67.1
          GREEN
          		 6 19 Aug 2021 06:00 Tropical storm 102 no people no people 30.3, -68.6
          GREEN
          		 6 19 Aug 2021 18:00 Tropical storm 102 no people no people 30.8, -69.8
          GREEN
          		 6 20 Aug 2021 06:00 Tropical storm 102 no people no people 31.6, -70.6
          GREEN
          		 6 21 Aug 2021 06:00 Tropical storm 102 no people no people 34, -69.1
          GREEN
          		 6 22 Aug 2021 06:00 Tropical storm 102 no people no people 36, -66
          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

          0.1 m

          The maximum Storm surge height is  0.1m in California, United States. This height is estimated for 21 Aug 2021 09:00 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 (43 locations). Calculation based on advisory number 6 of 17 Aug 2021 09:00:00 UTC. (Simulation using 0.5 minute resolution)

          Alert Date (UTC) Name Country Storm surge height (m)
          21 Aug 2021 09:00 California United States  0.1
          21 Aug 2021 09:00 Mother Vineyard United States  0.1
          21 Aug 2021 09:00 Manteo United States  0.1
          21 Aug 2021 09:00 Wanchese United States  0.1
          21 Aug 2021 09:00 Point Harbor United States  0.1
          21 Aug 2021 09:00 Hargraves Bench United States  0.1
          21 Aug 2021 09:00 Southern Shores United States  0.1
          21 Aug 2021 09:00 Colington United States  0.1
          21 Aug 2021 09:00 Fort Raleigh City United States  0.1
          21 Aug 2021 09:00 Powells Point United States  0.1
          21 Aug 2021 09:00 Mamie United States  0.1
          21 Aug 2021 09:00 Poplar Branch United States  0.1
          21 Aug 2021 09:00 Grandy United States  0.1
          21 Aug 2021 09:00 Jarvisburg United States  0.1
          21 Aug 2021 09:00 Whalebone United States  0.1
          21 Aug 2021 09:00 Salvo United States  0.1
          21 Aug 2021 09:00 Steeple United States  0.1
          21 Aug 2021 09:00 Rodanthe United States  0.1
          21 Aug 2021 09:00 Dam Neck Corner United States  0.1
          21 Aug 2021 09:00 Public Landing United States  0.1
          21 Aug 2021 09:00 Campbells Landing United States  0.1
          21 Aug 2021 09:00 Sigma United States  0.1
          21 Aug 2021 09:00 Cavalier Park United States  0.1
          21 Aug 2021 09:00 Hill Landing United States  0.1
          21 Aug 2021 09:00 Virginia Beach United States  0.1
          21 Aug 2021 09:00 Corys United States  0.1
          21 Aug 2021 09:00 Knotts Island United States  0.1
          21 Aug 2021 09:00 Corolla United States  0.1
          21 Aug 2021 09:00 Kill Devil Hills United States  0.1
          21 Aug 2021 09:00 Croatan Shores United States  0.1
          21 Aug 2021 09:00 Nags Head United States  0.1
          21 Aug 2021 09:00 Little Kinnakeet United States  0.1
          21 Aug 2021 09:00 Sandbridge Beach United States  0.1
          21 Aug 2021 09:00 False Cape Landing United States  0.1
          21 Aug 2021 09:00 Caffys Inlet Hamlet United States  0.1
          21 Aug 2021 09:00 Bayberry Bluffs United States  0.1
          21 Aug 2021 09:00 Kitty Hawk United States  0.1
          21 Aug 2021 09:00 Fox Hill United States  0.1
          21 Aug 2021 09:00 Buckroe Beach United States  0.1
          21 Aug 2021 09:00 Cheapside United States  0.1
          21 Aug 2021 09:00 Cedar Grove United States  0.1
          21 Aug 2021 09:00 Townsend United States  0.1
          21 Aug 2021 09:00 Kiptopeke United States  0.1