Overall Green alert Tropical Cyclone for HERNAN-20
in Mexico,
28 Aug 2020 21 UTC
click on to select bulletin time
  • GDACS NOAA
Impact Single TC
Impact based on all weather systems in the area

Impact

    Tropical Cyclone HERNAN-20 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

    Meteorological source GDACS
    Exposed countries Mexico,
    Exposed population No people in Category 1 or higher
    Maximum wind speed 74 km/h
    Maximum storm surge 0.2 m (28 Aug 07:00 UTC)
    Vulnerability Medium (Mexico)
    Landfall between
    28 Aug 2020 15:00 - 28 Aug 2020 21:00
    in Mexico

    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 0.2 m n.a. 0.5
    Overall 74 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

    TOP

    Wind

      46 km/h Current Max.

      Up to 160000 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 26 Aug 2020 09:00 65 260 thousand No people Mexico
        Green 2 26 Aug 2020 15:00 65 No people No people
        Green 3 26 Aug 2020 15:00 65 No people No people
        Green 4 27 Aug 2020 03:00 65 60 thousand No people Mexico
        Green 5 27 Aug 2020 09:00 74 200 thousand No people Mexico
        Green 6 27 Aug 2020 15:00 74 110 thousand No people Mexico
        Green 7 27 Aug 2020 21:00 65 110 thousand No people Mexico
        Green 8 28 Aug 2020 03:00 65 360 thousand No people Mexico
        Green 9 28 Aug 2020 09:00 65 440 thousand No people Mexico
        Green 10 28 Aug 2020 15:00 56 160 thousand No people Mexico
        Green 11 28 Aug 2020 21:00 46 160 thousand No people Mexico

        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 26 Aug 2020 09:00 Tropical depression 56 no people no people 17.5, -106.7
          GREEN
          		 2 26 Aug 2020 15:00 Tropical depression 56 no people no people 17.3, -106.1
          GREEN
          		 3 26 Aug 2020 21:00 Tropical storm 65 no people <1000 people 17.7, -105.8
          GREEN
          		 4 27 Aug 2020 03:00 Tropical storm 65 no people 59000 people 18.3, -105.8
          GREEN
          		 5 27 Aug 2020 09:00 Tropical storm 74 no people 82000 people 18.6, -106
          GREEN
          		 6 27 Aug 2020 15:00 Tropical storm 74 no people 90000 people 19.1, -106.2
          GREEN
          		 7 27 Aug 2020 21:00 Tropical storm 65 no people 61000 people 19.6, -106.5
          GREEN
          		 8 28 Aug 2020 03:00 Tropical storm 65 no people 13000 people 20.5, -107
          GREEN
          		 9 28 Aug 2020 09:00 Tropical storm 65 no people 13000 people 22.7, -107.3
          GREEN
          		 10 28 Aug 2020 15:00 Tropical depression 56 no people no people 23.4, -109.1
          GREEN
          		 11 28 Aug 2020 21:00 Tropical depression 46 no people no people 23.2, -110.1 Mexico
          GREEN
          		 11 29 Aug 2020 06:00 Tropical depression 37 no people no people 23.3, -111.8
          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
          Mexico

          Provinces

          Region Province Country
          Baja California Sur Mexico
          Nayarit Mexico
          Jalisco Mexico
          Colima Mexico

          Populated places

          Name Region Province Country City class Population
          Punta Mita Nayarit Mexico City -

          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)
          Punta Colorada PCO unknown 0
          Isla Maria Madre 5 0
          La Gloria 34 0
          Playa de Oro International ZLO 8 Civ. Paved Yes 7200

          Ports

          Name LOCODE Country
          Ipala Mexico
          El Tabaco Mexico
          Chamela Mexico

          Dams

          Reservoir Dam Name River Year
          Cajon de Peda Tomatlan 1976
          TOP

          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 Santa Cruz, Mexico. This height is estimated for 28 Aug 2020 07:00 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 (62 locations). Calculation based on advisory number 9 of 28 Aug 2020 09:00:00 UTC. (Simulation using 0.5 minute resolution)

          Alert Date (UTC) Name Country Storm surge height (m)
          28 Aug 2020 07:00 Santa Cruz Mexico  0.2
          29 Aug 2020 05:00 Datilito Mexico  0.2
          29 Aug 2020 00:00 La Trinadad Mexico  0.2
          28 Aug 2020 09:00 Cuamecate Mexico  0.2
          28 Aug 2020 09:00 Jarilla Mexico  0.2
          28 Aug 2020 07:00 El Nuevo Mexico  0.2
          29 Aug 2020 04:00 La Paz Mexico  0.2
          29 Aug 2020 01:00 La Ventana Mexico  0.2
          28 Aug 2020 06:00 San Blas Mexico  0.1
          28 Aug 2020 09:00 Caimanero Mexico  0.1
          28 Aug 2020 09:00 La Puerta Mexico  0.1
          28 Aug 2020 09:00 Isla de Palmito del Verde Mexico  0.1
          28 Aug 2020 20:00 Los Frailes Mexico  0.1
          28 Aug 2020 23:00 Las Palmas Mexico  0.1
          28 Aug 2020 23:00 La Ribera Mexico  0.1
          29 Aug 2020 00:00 Ensenada de los Muertos Mexico  0.1
          29 Aug 2020 06:00 San Juan de la Costa Mexico  0.1
          27 Aug 2020 16:00 Cuitzmala Mexico  0.1
          28 Aug 2020 00:00 Corrales Mexico  0.1
          28 Aug 2020 00:00 Aquiles Serdan Mexico  0.1
          28 Aug 2020 00:00 Ipala Mexico  0.1
          28 Aug 2020 07:00 Toro Mocho Mexico  0.1
          28 Aug 2020 21:00 Los Tesos Mexico  0.1
          28 Aug 2020 21:00 Punta Arena Mexico  0.1
          28 Aug 2020 19:00 El Castillo Mexico  0.1
          27 Aug 2020 16:00 Chola Mexico  0.1
          27 Aug 2020 16:00 La Manzanilla Mexico  0.1
          27 Aug 2020 03:00 Estrecho Mexico  0.1
          27 Aug 2020 03:00 El Ciruelo Mexico  0.1
          28 Aug 2020 09:00 Barron Mexico  0.1
          28 Aug 2020 09:00 Novillero Mexico  0.1
          28 Aug 2020 22:00 Punta Colorada Mexico  0.1
          28 Aug 2020 17:00 Las Arenitas Mexico  0.1
          28 Aug 2020 20:00 Altata Mexico  0.1
          27 Aug 2020 18:00 Chamela Mexico  0.1
          27 Aug 2020 03:00 Barra de Navidad Mexico  0.1
          27 Aug 2020 03:00 Santiago Mexico  0.1
          27 Aug 2020 03:00 Manzanillo Mexico  0.1
          27 Aug 2020 03:00 El Real Mexico  0.1
          27 Aug 2020 03:00 Chupadero Mexico  0.1
          27 Aug 2020 23:00 Punta Mita Mexico  0.1
          27 Aug 2020 23:00 San Francisco Mexico  0.1
          28 Aug 2020 07:00 Santa Cruz Mexico  0.1
          28 Aug 2020 16:00 Perihuete Mexico  0.1
          28 Aug 2020 16:00 Dimas Mexico  0.1
          28 Aug 2020 09:00 Cuantla Mexico  0.1
          29 Aug 2020 02:00 Santa Cruz Mexico  0.1
          28 Aug 2020 13:00 Marmol Mexico  0.1
          27 Aug 2020 03:00 Cuyutlan Mexico  0.1
          27 Aug 2020 03:00 Apisa Mexico  0.1
          27 Aug 2020 03:00 Cayaca Mexico  0.1
          27 Aug 2020 03:00 San Telmo Mexico  0.1
          27 Aug 2020 03:00 Bucerias Mexico  0.1
          28 Aug 2020 01:00 Pizota Mexico  0.1
          28 Aug 2020 01:00 Cruz de Juanacaxtle Mexico  0.1
          27 Aug 2020 23:00 Monteon Mexico  0.1
          27 Aug 2020 23:00 Puerto Vallarta Mexico  0.1
          28 Aug 2020 19:00 La Boca Mexico  0.1
          28 Aug 2020 09:00 Mazatlan Mexico  0.1
          28 Aug 2020 09:00 La Palmita Mexico  0.1
          28 Aug 2020 20:00 El Cardoncito Mexico  0.1
          29 Aug 2020 03:00 Rosario Mexico  0.1