Overall Green alert Tropical Cyclone for HENRI-21
in United States
21 Aug 2021 06 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 GFS
Exposed countries United States
Exposed population No people in Category 1 or higher
Maximum wind speed 112 km/h
Maximum storm surge 0.2 m (21 Aug 07:15 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
GFS Current 112 km/h 0.2 m 117 mm 0.5
GFS Overall 126 km/h 0.7 m 810 mm 0.5

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

TOP

Wind

126 km/h

Up to 50 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 06:00 UTC
CategoryCountryPopulation 
Tropical StormUnited States54,696 

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 16 Aug 2021 00:00 32 - - - - - - -
GREEN 2 16 Aug 2021 06:00 40 - - - - - - -
GREEN 3 16 Aug 2021 12:00 72 - - - - - - -
GREEN 4 16 Aug 2021 18:00 58 - - - - - - -
GREEN 5 17 Aug 2021 00:00 54 - - - - - - -
GREEN 6 17 Aug 2021 06:00 97 - - - - - - -
GREEN 7 17 Aug 2021 12:00 83 - - - - - - -
GREEN 8 17 Aug 2021 18:00 104 - - - - - - -
GREEN 9 18 Aug 2021 00:00 94 - - - - - - -
GREEN 10 18 Aug 2021 06:00 97 - - - - - - -
GREEN 11 18 Aug 2021 12:00 119 - - - - - - -
GREEN 12 18 Aug 2021 18:00 108 - - - - - - -
GREEN 13 19 Aug 2021 00:00 119 - - - - - - -
GREEN 14 19 Aug 2021 06:00 115 - - - - - - -
GREEN 15 19 Aug 2021 12:00 126 - - - - - - -
GREEN 16 19 Aug 2021 18:00 104 - - - - - - -
GREEN 17 20 Aug 2021 00:00 94 - - - - - - -
GREEN 18 20 Aug 2021 06:00 101 - - - - - - -
GREEN 19 20 Aug 2021 12:00 122 - - - - - - -
GREEN 20 20 Aug 2021 18:00 108 - - - - - - -
GREEN 21 21 Aug 2021 00:00 97 - - - - - - -
GREEN 22 21 Aug 2021 06:00 144 -
- - - - - United States
Download:





Impact estimation for the next 72h
TOP

Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 21 Aug 2021 06:00 UTC
LevelCountryPopulation 
100-250 mmUnited States249,429 
50-100 mmUnited States2,301,666 

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 16 Aug 2021 00:00 24 - - - - - - -
Blue 2 16 Aug 2021 06:00 23 - - - - - - -
Blue 3 16 Aug 2021 12:00 124 - - - - - - -
Blue 4 16 Aug 2021 18:00 119 - - - - - - -
Blue 5 17 Aug 2021 00:00 35 - - - - - - -
Blue 6 17 Aug 2021 06:00 130 - - - - - - -
Blue 7 17 Aug 2021 12:00 77 - - - - - - -
Blue 8 17 Aug 2021 18:00 48 - - - - - - -
Blue 9 18 Aug 2021 00:00 86 - - - - - - -
Blue 10 18 Aug 2021 06:00 74 - - - - - - -
Blue 11 18 Aug 2021 12:00 134 - - - - - - -
Blue 12 18 Aug 2021 18:00 132 - - - - - - -
Blue 13 19 Aug 2021 00:00 126 -
- - - - - United States
Blue 14 19 Aug 2021 06:00 120 -
- - - - - United States
Blue 15 19 Aug 2021 12:00 139 -
- - - - - United States
Blue 16 19 Aug 2021 18:00 160 - - - - - - -
Blue 17 20 Aug 2021 00:00 141 - - - - - - -
Blue 18 20 Aug 2021 06:00 113 - - - - - - -
Blue 19 20 Aug 2021 12:00 221 - - - - - - -
Blue 20 20 Aug 2021 18:00 153 - - - - - - -
Blue 21 21 Aug 2021 00:00 121 - - - - - - -
Blue 22 21 Aug 2021 06:00 218 250 thousand
- - - - United States




Impact estimation for the next 72h
TOP

StormSurge

0.2 m

The maximum Storm surge height is  0.2m in Port Greville, Canada. This height is estimated for 21 Aug 2021 07:15 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 06:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
21 Aug 2021 07:15 Port Greville Canada  0.2
21 Aug 2021 07:15 Canning Canada  0.2
21 Aug 2021 07:15 Scots Bay Canada  0.2
21 Aug 2021 07:15 Kingsport Canada  0.2
21 Aug 2021 07:15 Parrsboro Canada  0.2
21 Aug 2021 07:15 Hall Harbour Canada  0.2
21 Aug 2021 07:15 Port Williams Canada  0.2
21 Aug 2021 07:00 Apple River Canada  0.2
21 Aug 2021 07:00 Advocate Harbour Canada  0.2
21 Aug 2021 07:00 Spencer Island Canada  0.2
21 Aug 2021 07:30 Alma Canada  0.2
21 Aug 2021 07:30 Cape Enrage Canada  0.2
21 Aug 2021 06:45 Morden Canada  0.1
21 Aug 2021 08:45 Searsport United States  0.1
21 Aug 2021 08:45 Dark Harbor United States  0.1
21 Aug 2021 08:45 Isleboro United States  0.1
21 Aug 2021 08:45 North Islesboro United States  0.1
21 Aug 2021 08:45 Pulpit Harbor United States  0.1
21 Aug 2021 08:45 Castine United States  0.1
21 Aug 2021 08:45 Goose Rocks United States  0.1
21 Aug 2021 08:45 Goose Falls United States  0.1
21 Aug 2021 08:45 Fort George United States  0.1
21 Aug 2021 08:45 Cape Rosier United States  0.1
21 Aug 2021 08:45 Flat Landing United States  0.1
21 Aug 2021 08:45 Stover Corner United States  0.1
21 Aug 2021 08:45 Eggemoggin United States  0.1
21 Aug 2021 08:45 Herricks United States  0.1
21 Aug 2021 08:45 Sunset United States  0.1
21 Aug 2021 08:45 Deer Isle United States  0.1
21 Aug 2021 08:45 Black Corner United States  0.1
21 Aug 2021 08:45 Sargentville United States  0.1
21 Aug 2021 08:45 Stonington United States  0.1
21 Aug 2021 08:30 Kendalls Corner United States  0.1
21 Aug 2021 08:30 Camden United States  0.1
21 Aug 2021 08:30 Hayford Corner United States  0.1
21 Aug 2021 08:30 Holmes Mill United States  0.1
21 Aug 2021 08:30 Stevens Corner United States  0.1
21 Aug 2021 08:30 Simpsons Corner United States  0.1
21 Aug 2021 08:30 City Point United States  0.1
21 Aug 2021 08:30 Dog Island Corner United States  0.1
21 Aug 2021 08:30 Greenlaws Corner United States  0.1
21 Aug 2021 08:30 Lincolnville United States  0.1
21 Aug 2021 08:30 Herricks Corner United States  0.1
21 Aug 2021 08:30 Belfast United States  0.1
21 Aug 2021 08:30 Shermans Corner United States  0.1
21 Aug 2021 08:30 Bayside United States  0.1
21 Aug 2021 08:30 Stockton Springs United States  0.1
21 Aug 2021 08:30 Sandy Point United States  0.1
21 Aug 2021 08:30 West Penobscot United States  0.1
21 Aug 2021 06:15 Larry's River Canada  0.1
21 Aug 2021 06:15 Half Island Cove Canada  0.1
21 Aug 2021 06:15 Whitehead Canada  0.1
21 Aug 2021 07:00 Margaretsville Canada  0.1
21 Aug 2021 12:00 Christian Town United States  0.1
21 Aug 2021 12:00 West Tisbury United States  0.1
21 Aug 2021 12:00 North Tisbury United States  0.1
21 Aug 2021 12:00 Woods Hole United States  0.1
21 Aug 2021 12:00 Lamberts Cove United States  0.1
21 Aug 2021 12:00 Quansoo United States  0.1
21 Aug 2021 12:00 Makonikey United States  0.1
21 Aug 2021 12:00 Quissett United States  0.1
21 Aug 2021 12:00 Sippowisset United States  0.1
21 Aug 2021 12:00 Vineyard Haven United States  0.1
21 Aug 2021 12:00 West Chop United States  0.1
21 Aug 2021 12:00 Falmouth United States  0.1
21 Aug 2021 12:00 Oklahoma Heights United States  0.1
21 Aug 2021 12:00 Teaticket United States  0.1
21 Aug 2021 12:00 Oak Bluffs United States  0.1
21 Aug 2021 12:00 East Falmouth United States  0.1
21 Aug 2021 12:00 Jerneganville United States  0.1
21 Aug 2021 12:00 Edgartown United States  0.1
21 Aug 2021 12:00 Waquoit United States  0.1
21 Aug 2021 12:00 Katama United States  0.1
21 Aug 2021 12:00 Monomoscoy Island United States  0.1
21 Aug 2021 12:00 Wepua Point United States  0.1
21 Aug 2021 12:00 Popponesset Island United States  0.1
21 Aug 2021 08:45 North Haven United States  0.1
21 Aug 2021 06:15 Centreville Canada  0.1
21 Aug 2021 06:15 Weymouth Canada  0.1
21 Aug 2021 06:15 Waterford Canada  0.1
21 Aug 2021 06:00 Arichat Canada  0.1
21 Aug 2021 06:00 Canso Canada  0.1
21 Aug 2021 06:00 D'Escousse Canada  0.1
21 Aug 2021 07:30 Robbinston United States  0.1
21 Aug 2021 07:30 Perry United States  0.1
21 Aug 2021 07:30 Saint Andrews Canada  0.1
21 Aug 2021 07:30 Pleasant Point United States  0.1
21 Aug 2021 07:30 Richardson Canada  0.1
21 Aug 2021 07:30 L'Etete Canada  0.1
21 Aug 2021 06:00 Petit-de-Grat Canada  0.1
21 Aug 2021 08:30 Glen Cove United States  0.1
21 Aug 2021 08:30 Rockport United States  0.1
21 Aug 2021 07:15 Quoddy United States  0.1
21 Aug 2021 07:15 Eastport United States  0.1
21 Aug 2021 07:15 Welshpool Canada  0.1
21 Aug 2021 06:00 Port Hawkesbury Canada  0.1
21 Aug 2021 06:00 Point Tupper Canada  0.1
21 Aug 2021 06:00 Evanston Canada  0.1
21 Aug 2021 06:30 Marshall Cove Canada  0.1
21 Aug 2021 08:15 Blackinton Corners United States  0.1
21 Aug 2021 08:15 Rockville United States  0.1
21 Aug 2021 08:15 Rockland United States  0.1
21 Aug 2021 08:15 Simonton Corners United States  0.1
21 Aug 2021 08:15 Melvin Heights United States  0.1
21 Aug 2021 08:15 Owls Head United States  0.1
21 Aug 2021 11:45 Pleasant Plains United States  0.1
21 Aug 2021 11:45 Rossville United States  0.1
21 Aug 2021 11:45 Fresh Kills United States  0.1
21 Aug 2021 11:45 Annadale United States  0.1
21 Aug 2021 11:45 Great Kills United States  0.1
21 Aug 2021 11:45 Staten Island United States  0.1
21 Aug 2021 11:45 Bayonne United States  0.1
21 Aug 2021 11:45 Oakwood Beach United States  0.1
21 Aug 2021 11:45 West New Brighton United States  0.1
21 Aug 2021 11:45 Richmond United States  0.1
21 Aug 2021 11:45 Emerson Hill United States  0.1
21 Aug 2021 11:45 Greenville United States  0.1
21 Aug 2021 11:45 Saint George United States  0.1
21 Aug 2021 11:45 Clifton United States  0.1
21 Aug 2021 11:45 Arrochar United States  0.1
21 Aug 2021 11:45 Jersey City United States  0.1
21 Aug 2021 11:45 Croxton United States  0.1
21 Aug 2021 11:45 Communipaw United States  0.1
21 Aug 2021 11:45 Fort Hamilton United States  0.1
21 Aug 2021 11:45 Hoboken United States  0.1
21 Aug 2021 11:45 Bay Ridge United States  0.1
21 Aug 2021 11:45 Red Hook United States  0.1
21 Aug 2021 11:45 New York United States  0.1
21 Aug 2021 11:45 Bath Beach United States  0.1
21 Aug 2021 11:45 Fort Hancock United States  0.1
21 Aug 2021 11:45 Coney Island United States  0.1
21 Aug 2021 11:45 Park Slope United States  0.1
21 Aug 2021 11:45 Manhattan United States  0.1
21 Aug 2021 11:45 Gravesend United States  0.1
21 Aug 2021 11:45 Adelphi United States  0.1
21 Aug 2021 11:45 Brighton Beach United States  0.1
21 Aug 2021 11:45 Greenpoint United States  0.1
21 Aug 2021 11:45 Sunnyside United States  0.1
21 Aug 2021 11:45 Flatlands United States  0.1
21 Aug 2021 11:45 Astoria United States  0.1
21 Aug 2021 11:45 Breezy Point United States  0.1
21 Aug 2021 11:45 Gerritsen United States  0.1
21 Aug 2021 11:45 Haberman United States  0.1
21 Aug 2021 11:45 Bergen Beach United States  0.1
21 Aug 2021 11:45 Woodside United States  0.1
21 Aug 2021 11:45 Steinway United States  0.1
21 Aug 2021 07:45 Saint Martins Canada  0.1
21 Aug 2021 08:15 Spruce Head United States  0.1
21 Aug 2021 08:15 Ash Point United States  0.1
21 Aug 2021 08:15 Vinalhaven United States  0.1
21 Aug 2021 06:30 Parkers Cove Canada  0.1