Overall Green alert Tropical Cyclone for HENRI-21
in United States
21 Aug 2021 00 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 United States
Exposed population No people in Category 1 or higher
Maximum wind speed 104 km/h
Maximum storm surge 0.2 m (21 Aug 00:15 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 104 km/h 0.2 m 241 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

Up to 100 thousand can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 21 Aug 2021 00:00 UTC
CategoryCountryPopulation 
Tropical StormUnited States95,449 

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 - - - - - - -
GREEN 6 18 Aug 2021 00:00 - 80 thousand
Canada, United States
GREEN 7 18 Aug 2021 12:00 65 - - - - - - -
GREEN 8 19 Aug 2021 00:00 86 - - - - - - -
GREEN 9 19 Aug 2021 12:00 130 - - - - - - -
GREEN 10 20 Aug 2021 00:00 94 - - - - - - -
GREEN 11 20 Aug 2021 12:00 - 280 thousand
United States, Canada, Bermuda
GREEN 12 21 Aug 2021 00:00 104 -
- - - - - United States
Download:





Impact estimation for the next 72h
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Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 21 Aug 2021 00:00 UTC
LevelCountryPopulation 
100-250 mmUnited States13,290,089 
50-100 mmUnited States9,039,589 

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 12:00 178 - - - - - - -
Blue 6 18 Aug 2021 00:00 63 - - - - - - -
Blue 7 18 Aug 2021 12:00 141 - - - - - - -
Blue 8 19 Aug 2021 00:00 210 -
- - - - - United States
Blue 9 19 Aug 2021 12:00 209 -
- - - - - United States
Blue 10 20 Aug 2021 00:00 268 -
- - - - - Canada, United States
Blue 11 20 Aug 2021 12:00 249 -
- - - - - United States
Blue 12 21 Aug 2021 00:00 244 13.3 million
- - - - 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 Kendalls Corner, United States. This height is estimated for 21 Aug 2021 00:15 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 21 Aug 2021 00:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
21 Aug 2021 00:15 Kendalls Corner United States  0.2
21 Aug 2021 00:15 Camden United States  0.2
21 Aug 2021 00:15 Hayford Corner United States  0.2
21 Aug 2021 00:15 Holmes Mill United States  0.2
21 Aug 2021 00:15 Stevens Corner United States  0.2
21 Aug 2021 00:15 Simpsons Corner United States  0.2
21 Aug 2021 00:15 City Point United States  0.2
21 Aug 2021 00:15 Dog Island Corner United States  0.2
21 Aug 2021 00:15 Greenlaws Corner United States  0.2
21 Aug 2021 00:15 Lincolnville United States  0.2
21 Aug 2021 00:15 Herricks Corner United States  0.2
21 Aug 2021 00:15 Belfast United States  0.2
21 Aug 2021 00:15 Shermans Corner United States  0.2
21 Aug 2021 00:15 Bayside United States  0.2
21 Aug 2021 00:15 Searsport United States  0.2
21 Aug 2021 00:15 Dark Harbor United States  0.2
21 Aug 2021 00:15 Isleboro United States  0.2
21 Aug 2021 00:15 North Islesboro United States  0.2
21 Aug 2021 00:15 Castine United States  0.2
21 Aug 2021 00:15 Stockton Springs United States  0.2
21 Aug 2021 00:15 Sandy Point United States  0.2
21 Aug 2021 00:15 Goose Falls United States  0.2
21 Aug 2021 00:15 Fort George United States  0.2
21 Aug 2021 00:15 Cape Rosier United States  0.2
21 Aug 2021 00:15 West Penobscot United States  0.2
21 Aug 2021 00:15 Flat Landing United States  0.2
21 Aug 2021 00:00 Pulpit Harbor United States  0.2
21 Aug 2021 00:00 Goose Rocks United States  0.2
21 Aug 2021 00:00 Stover Corner United States  0.2
21 Aug 2021 00:00 Eggemoggin United States  0.2
21 Aug 2021 00:00 Herricks United States  0.2
21 Aug 2021 00:00 Sunset United States  0.2
21 Aug 2021 00:00 Deer Isle United States  0.2
21 Aug 2021 00:00 Black Corner United States  0.2
21 Aug 2021 00:00 Sargentville United States  0.2
21 Aug 2021 00:00 Stonington United States  0.2
21 Aug 2021 00:15 North Haven United States  0.2
21 Aug 2021 00:00 Glen Cove United States  0.2
21 Aug 2021 00:00 Rockport United States  0.2
21 Aug 2021 00:45 Port Greville Canada  0.2
21 Aug 2021 00:45 Canning Canada  0.2
21 Aug 2021 00:45 Scots Bay Canada  0.2
21 Aug 2021 00:45 Kingsport Canada  0.2
21 Aug 2021 00:45 Parrsboro Canada  0.2
21 Aug 2021 02:45 Larry's River Canada  0.2
21 Aug 2021 02:45 Half Island Cove Canada  0.2
21 Aug 2021 02:45 Whitehead Canada  0.2
21 Aug 2021 01:30 Fourchu Canada  0.1
21 Aug 2021 01:30 Gabarus Canada  0.1
21 Aug 2021 00:15 Owls Head United States  0.1
21 Aug 2021 02:30 Port Hawkesbury Canada  0.1
21 Aug 2021 02:30 Point Tupper Canada  0.1
21 Aug 2021 02:30 Evanston Canada  0.1
21 Aug 2021 00:15 Blackinton Corners United States  0.1
21 Aug 2021 00:15 Rockville United States  0.1
21 Aug 2021 00:15 Rockland United States  0.1
21 Aug 2021 00:15 Simonton Corners United States  0.1
21 Aug 2021 00:15 Melvin Heights United States  0.1
21 Aug 2021 02:45 Arichat Canada  0.1
21 Aug 2021 02:45 Canso Canada  0.1
21 Aug 2021 02:45 D'Escousse Canada  0.1
21 Aug 2021 08:15 Pleasant Plains United States  0.1
21 Aug 2021 08:15 Rossville United States  0.1
21 Aug 2021 08:15 Fresh Kills United States  0.1
21 Aug 2021 08:15 Annadale United States  0.1
21 Aug 2021 08:15 Great Kills United States  0.1
21 Aug 2021 08:15 Staten Island United States  0.1
21 Aug 2021 08:15 Bayonne United States  0.1
21 Aug 2021 08:15 Oakwood Beach United States  0.1
21 Aug 2021 08:15 West New Brighton United States  0.1
21 Aug 2021 08:15 Richmond United States  0.1
21 Aug 2021 08:15 Emerson Hill United States  0.1
21 Aug 2021 08:15 Greenville United States  0.1
21 Aug 2021 08:15 Saint George United States  0.1
21 Aug 2021 08:15 Clifton United States  0.1
21 Aug 2021 08:15 Arrochar United States  0.1
21 Aug 2021 08:15 Jersey City United States  0.1
21 Aug 2021 08:15 Croxton United States  0.1
21 Aug 2021 08:15 Communipaw United States  0.1
21 Aug 2021 08:15 Fort Hamilton United States  0.1
21 Aug 2021 08:15 Hoboken United States  0.1
21 Aug 2021 08:15 Bay Ridge United States  0.1
21 Aug 2021 08:15 Red Hook United States  0.1
21 Aug 2021 08:15 New York United States  0.1
21 Aug 2021 08:15 Bath Beach United States  0.1
21 Aug 2021 08:15 Fort Hancock United States  0.1
21 Aug 2021 08:15 Coney Island United States  0.1
21 Aug 2021 08:15 Park Slope United States  0.1
21 Aug 2021 08:15 Manhattan United States  0.1
21 Aug 2021 08:15 Gravesend United States  0.1
21 Aug 2021 08:15 Adelphi United States  0.1
21 Aug 2021 08:15 Brighton Beach United States  0.1
21 Aug 2021 08:15 Greenpoint United States  0.1
21 Aug 2021 08:15 Sunnyside United States  0.1
21 Aug 2021 08:15 Flatlands United States  0.1
21 Aug 2021 08:15 Astoria United States  0.1
21 Aug 2021 08:15 Breezy Point United States  0.1
21 Aug 2021 08:15 Gerritsen United States  0.1
21 Aug 2021 08:15 Haberman United States  0.1
21 Aug 2021 08:15 Bergen Beach United States  0.1
21 Aug 2021 08:15 Woodside United States  0.1
21 Aug 2021 08:15 Steinway United States  0.1
21 Aug 2021 03:00 Petit-de-Grat Canada  0.1
21 Aug 2021 02:00 Saint Peters Canada  0.1
21 Aug 2021 02:00 L'Ardoise Canada  0.1
21 Aug 2021 02:00 Soldiers Cove Canada  0.1
21 Aug 2021 02:00 Grand River Canada  0.1
21 Aug 2021 00:15 Mahone Bay Canada  0.1
21 Aug 2021 00:15 La Have Canada  0.1
21 Aug 2021 00:15 Lunenburg Canada  0.1
21 Aug 2021 00:15 Saint George United States  0.1
21 Aug 2021 00:15 Spruce Head United States  0.1
21 Aug 2021 00:15 Ash Point United States  0.1
21 Aug 2021 00:45 Hall Harbour Canada  0.1
21 Aug 2021 00:15 Tenants Harbor United States  0.1
21 Aug 2021 00:15 Elmore United States  0.1
21 Aug 2021 00:15 Clark Island United States  0.1
21 Aug 2021 05:00 Laughing Waters United States  0.1
21 Aug 2021 05:00 Beixedon Estates United States  0.1
21 Aug 2021 05:00 North Sea United States  0.1
21 Aug 2021 05:00 Tuckahoe United States  0.1
21 Aug 2021 05:00 Reydon Shores United States  0.1
21 Aug 2021 05:00 Hampton Park United States  0.1
21 Aug 2021 05:00 Southampton United States  0.1
21 Aug 2021 05:00 Rose Grove United States  0.1
21 Aug 2021 05:00 Arshamonaque United States  0.1
21 Aug 2021 05:00 Greenport West United States  0.1
21 Aug 2021 05:00 Deerfield United States  0.1
21 Aug 2021 05:00 Greenport United States  0.1
21 Aug 2021 05:00 Cobb United States  0.1
21 Aug 2021 05:00 Flying Point United States  0.1
21 Aug 2021 05:00 Montclair Colony United States  0.1
21 Aug 2021 05:00 Watermill United States  0.1
21 Aug 2021 05:00 Shelter Island Heights United States  0.1
21 Aug 2021 05:00 East Marion United States  0.1
21 Aug 2021 05:00 Dering Harbor United States  0.1
21 Aug 2021 05:00 Noyack United States  0.1
21 Aug 2021 05:00 Hayground United States  0.1
21 Aug 2021 05:00 Shelter Island United States  0.1
21 Aug 2021 05:00 North Haven United States  0.1
21 Aug 2021 05:00 Bay Point United States  0.1
21 Aug 2021 05:00 Bridgehampton United States  0.1
21 Aug 2021 05:00 Mecox United States  0.1
21 Aug 2021 05:00 Sag Harbor United States  0.1
21 Aug 2021 05:00 Sagaponack United States  0.1
21 Aug 2021 05:00 Orient Point United States  0.1
21 Aug 2021 05:00 Northwest Landing United States  0.1
21 Aug 2021 05:00 Wainscott United States  0.1
21 Aug 2021 05:00 Alewife Brook Landing United States  0.1
21 Aug 2021 05:00 Hardscrabble United States  0.1
21 Aug 2021 05:00 Northwest Harbor United States  0.1
21 Aug 2021 05:00 Apaquogue United States  0.1
21 Aug 2021 05:00 Lafarges Landing United States  0.1
21 Aug 2021 05:00 East Hampton United States  0.1
21 Aug 2021 05:00 Threemile Harbor United States  0.1
21 Aug 2021 05:00 East Hampton North United States  0.1
21 Aug 2021 05:00 Maidstone Park United States  0.1
21 Aug 2021 05:00 Kingstown United States  0.1
21 Aug 2021 05:00 Springs United States  0.1
21 Aug 2021 05:00 Fireplace United States  0.1
21 Aug 2021 05:00 Amagansett United States  0.1
21 Aug 2021 05:00 Barnes Hole United States  0.1
21 Aug 2021 05:00 Abrams Landing United States  0.1
21 Aug 2021 00:15 Vinalhaven United States  0.1
21 Aug 2021 00:45 Port Williams Canada  0.1
21 Aug 2021 10:45 Robbinston United States  0.1
21 Aug 2021 10:45 Perry United States  0.1
21 Aug 2021 10:45 Saint Andrews Canada  0.1
21 Aug 2021 10:45 Pleasant Point United States  0.1
21 Aug 2021 10:45 Quoddy United States  0.1
21 Aug 2021 10:45 Eastport United States  0.1
21 Aug 2021 10:45 Richardson Canada  0.1
21 Aug 2021 10:45 Welshpool Canada  0.1
21 Aug 2021 10:45 L'Etete Canada  0.1
21 Aug 2021 00:00 Hubbards Canada  0.1
21 Aug 2021 00:45 Spencer Island Canada  0.1
21 Aug 2021 04:45 Clyde River Canada  0.1
21 Aug 2021 04:45 Port Clyde Canada  0.1
21 Aug 2021 04:45 Roseway Canada  0.1
21 Aug 2021 04:45 Shelburne Canada  0.1
21 Aug 2021 01:15 Isaacs Harbour Canada  0.1
21 Aug 2021 01:15 Goldboro Canada  0.1
21 Aug 2021 01:30 Bickerton West Canada  0.1
21 Aug 2021 01:00 Apple River Canada  0.1
21 Aug 2021 01:00 Advocate Harbour Canada  0.1
21 Aug 2021 01:45 Liscomb Canada  0.1
21 Aug 2021 01:45 Sherbrooke Canada  0.1
21 Aug 2021 01:45 Sonora Canada  0.1
21 Aug 2021 04:45 Widgen Woods United States  0.1
21 Aug 2021 04:45 Hatteras United States  0.1