Overall Green alert Tropical Cyclone for HENRI-21
in United States
17 Aug 2021 12 UTC
click on to select bulletin time
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 ECMWF
Exposed countries
Exposed population No people in Category 1 or higher
Maximum wind speed 68 km/h
Maximum storm surge 0.2 m (17 Aug 19:00 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
ECMWF Current 68 km/h 0.2 m 178 mm 0.5
ECMWF Overall 58 km/h 0.6 m 351 mm 0.5

Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)

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Wind

58 km/h

No people by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

No exposed population (in Tropical Storm or higher) based on the bulletin of 17 Aug 2021 12:00 UTC

See TC classification SSHS


Wind Impact Timeline

people affected <=10000
10000< people affected <=100000
people affected >100000


Alert N° Date (UTC) Max Winds (km/h) Pop in Cat. 1 or higher TS Cat. 1 Cat. 2 Cat. 3 Cat. 4 Cat. 5 Countries
GREEN 1 15 Aug 2021 12:00 40 - - - - - - -
GREEN 2 16 Aug 2021 00:00 40 - - - - - - -
GREEN 3 16 Aug 2021 12:00 - 90 thousand
United States
GREEN 4 17 Aug 2021 00:00 - 130 thousand
United States, Canada
GREEN 5 17 Aug 2021 12:00 68 - - - - - - -
Download:





Impact estimation for the next 72h
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Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 17 Aug 2021 12:00 UTC
LevelCountryPopulation 
100-250 mmUnited States440,275 
50-100 mmUnited States3,013,853 

Rain Impact Timeline

people affected <=10000
10000< people affected <=100000
people affected >100000


Alert N° Date (UTC) Max Rainfall (mm) Pop >100mm or higher 50-100 100-250 250-500 500-750 750-1000 >1000 Countries
Blue 1 15 Aug 2021 12:00 43 - - - - - - -
Blue 2 16 Aug 2021 00:00 72 - - - - - - -
Blue 3 16 Aug 2021 12:00 48 - - - - - - -
Blue 4 17 Aug 2021 00:00 94 -
- - - - - United States
Blue 5 17 Aug 2021 12:00 218 440 thousand
- - - - United States




Impact estimation for the next 72h
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StormSurge

0.2 m

The maximum Storm surge height is  0.2m in Port Greville, Canada. This height is estimated for 17 Aug 2021 19:00 UTC .

The JRC has developed an experimental global storm surge model, which is run after each advisory issued by the regional tropical cyclone centres. 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.

Storm Surge Exposed population - AoIs


Storm Surge Exposed locations

Calculation based on the bulletin of 17 Aug 2021 12:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
17 Aug 2021 19:00 Port Greville Canada  0.2
17 Aug 2021 19:00 Canning Canada  0.2
17 Aug 2021 19:00 Scots Bay Canada  0.2
17 Aug 2021 19:00 Kingsport Canada  0.2
17 Aug 2021 19:00 Parrsboro Canada  0.2
17 Aug 2021 19:15 Hall Harbour Canada  0.2
17 Aug 2021 19:30 Port Williams Canada  0.2
17 Aug 2021 19:30 Spencer Island Canada  0.2
17 Aug 2021 19:45 Apple River Canada  0.2
17 Aug 2021 19:45 Advocate Harbour Canada  0.2
17 Aug 2021 19:45 Morden Canada  0.2
17 Aug 2021 19:00 Alma Canada  0.2
17 Aug 2021 19:00 Cape Enrage Canada  0.2
17 Aug 2021 20:30 Half Island Cove Canada  0.2
17 Aug 2021 20:30 Whitehead Canada  0.2
17 Aug 2021 19:45 Margaretsville Canada  0.1
17 Aug 2021 20:45 Larry's River Canada  0.1
17 Aug 2021 20:45 Port Hawkesbury Canada  0.1
17 Aug 2021 20:45 Point Tupper Canada  0.1
17 Aug 2021 20:45 Evanston Canada  0.1
17 Aug 2021 19:45 Gabarus Canada  0.1
17 Aug 2021 20:45 Arichat Canada  0.1
17 Aug 2021 20:45 Canso Canada  0.1
17 Aug 2021 20:45 D'Escousse Canada  0.1
17 Aug 2021 20:45 Petit-de-Grat Canada  0.1
18 Aug 2021 00:00 Shenandoah United States  0.1
18 Aug 2021 00:00 Thorntown United States  0.1
18 Aug 2021 00:00 Delaware City United States  0.1
18 Aug 2021 00:00 Bay View Beach United States  0.1
18 Aug 2021 00:00 Fennimore Landing United States  0.1
18 Aug 2021 00:00 Taylors Bridge United States  0.1
18 Aug 2021 00:00 Shingle Landing United States  0.1
18 Aug 2021 00:00 Port Penn United States  0.1
18 Aug 2021 00:00 Flemings Landing United States  0.1
18 Aug 2021 00:00 Collins Beach United States  0.1
18 Aug 2021 00:00 Taylors Gut Landing United States  0.1
18 Aug 2021 00:00 Oakwood Beach United States  0.1
18 Aug 2021 00:00 Sinnickson Landing United States  0.1
18 Aug 2021 00:00 Woodland Beach United States  0.1
18 Aug 2021 00:00 Hagerville United States  0.1
18 Aug 2021 00:00 Salem United States  0.1
18 Aug 2021 00:00 Pine Island United States  0.1
18 Aug 2021 00:00 Bay Side United States  0.1
18 Aug 2021 00:00 Sea Breeze United States  0.1
18 Aug 2021 00:00 Loyds Corner United States  0.1
18 Aug 2021 00:00 Donas Landing United States  0.1
18 Aug 2021 00:00 Post Mahon United States  0.1
18 Aug 2021 00:00 Kendalls Corner United States  0.1
18 Aug 2021 00:00 Camden United States  0.1
18 Aug 2021 00:00 Hayford Corner United States  0.1
18 Aug 2021 00:00 Holmes Mill United States  0.1
18 Aug 2021 00:00 Stevens Corner United States  0.1
18 Aug 2021 00:00 Simpsons Corner United States  0.1
18 Aug 2021 00:00 City Point United States  0.1
18 Aug 2021 00:00 Dog Island Corner United States  0.1
18 Aug 2021 00:00 Greenlaws Corner United States  0.1
18 Aug 2021 00:00 Lincolnville United States  0.1
18 Aug 2021 00:00 Herricks Corner United States  0.1
18 Aug 2021 00:00 Belfast United States  0.1
18 Aug 2021 00:00 Shermans Corner United States  0.1
18 Aug 2021 00:00 Bayside United States  0.1
18 Aug 2021 00:00 Searsport United States  0.1
18 Aug 2021 00:00 Dark Harbor United States  0.1
18 Aug 2021 00:00 Isleboro United States  0.1
18 Aug 2021 00:00 North Islesboro United States  0.1
18 Aug 2021 00:00 Castine United States  0.1
18 Aug 2021 00:00 Stockton Springs United States  0.1
18 Aug 2021 00:00 Sandy Point United States  0.1
18 Aug 2021 00:00 Goose Falls United States  0.1
18 Aug 2021 00:00 Fort George United States  0.1
18 Aug 2021 00:00 Cape Rosier United States  0.1
18 Aug 2021 00:00 West Penobscot United States  0.1
18 Aug 2021 00:00 Flat Landing United States  0.1
17 Aug 2021 20:00 Fourchu Canada  0.1
18 Aug 2021 00:00 Gandys Beach United States  0.1
18 Aug 2021 00:00 Little Creek United States  0.1
18 Aug 2021 00:00 Postles Corner United States  0.1
18 Aug 2021 00:00 Generals Greene United States  0.1
17 Aug 2021 20:45 Saint Peters Canada  0.1
17 Aug 2021 20:45 L'Ardoise Canada  0.1
17 Aug 2021 20:45 Soldiers Cove Canada  0.1
17 Aug 2021 19:45 Marshall Cove Canada  0.1
17 Aug 2021 20:30 Grand River Canada  0.1
17 Aug 2021 19:30 Saint Martins Canada  0.1
17 Aug 2021 19:00 Pleasant Plains United States  0.1
17 Aug 2021 19:00 Rossville United States  0.1
17 Aug 2021 19:00 Fresh Kills United States  0.1
17 Aug 2021 19:00 Annadale United States  0.1
17 Aug 2021 19:00 Great Kills United States  0.1
17 Aug 2021 19:00 Staten Island United States  0.1
17 Aug 2021 19:00 Bayonne United States  0.1
17 Aug 2021 19:00 Oakwood Beach United States  0.1
17 Aug 2021 19:00 West New Brighton United States  0.1
17 Aug 2021 19:00 Richmond United States  0.1
17 Aug 2021 19:00 Emerson Hill United States  0.1
17 Aug 2021 19:00 Greenville United States  0.1
17 Aug 2021 19:00 Saint George United States  0.1
17 Aug 2021 19:00 Clifton United States  0.1
17 Aug 2021 19:00 Arrochar United States  0.1
17 Aug 2021 19:00 Jersey City United States  0.1
17 Aug 2021 19:00 Croxton United States  0.1
17 Aug 2021 19:00 Communipaw United States  0.1
17 Aug 2021 19:00 Fort Hamilton United States  0.1
17 Aug 2021 19:00 Hoboken United States  0.1
17 Aug 2021 19:00 Bay Ridge United States  0.1
17 Aug 2021 19:00 Red Hook United States  0.1
17 Aug 2021 19:00 New York United States  0.1
17 Aug 2021 19:00 Bath Beach United States  0.1
17 Aug 2021 19:00 Fort Hancock United States  0.1
17 Aug 2021 19:00 Coney Island United States  0.1
17 Aug 2021 19:00 Park Slope United States  0.1
17 Aug 2021 19:00 Manhattan United States  0.1
17 Aug 2021 19:00 Gravesend United States  0.1
17 Aug 2021 19:00 Adelphi United States  0.1
17 Aug 2021 19:00 Brighton Beach United States  0.1
17 Aug 2021 19:00 Greenpoint United States  0.1
17 Aug 2021 19:00 Sunnyside United States  0.1
17 Aug 2021 19:00 Flatlands United States  0.1
17 Aug 2021 19:00 Astoria United States  0.1
17 Aug 2021 19:00 Breezy Point United States  0.1
17 Aug 2021 19:00 Gerritsen United States  0.1
17 Aug 2021 19:00 Haberman United States  0.1
17 Aug 2021 19:00 Bergen Beach United States  0.1
17 Aug 2021 19:00 Woodside United States  0.1
17 Aug 2021 19:00 Steinway United States  0.1
18 Aug 2021 00:00 Fortescue United States  0.1