Overall Green alert Tropical Cyclone for HENRI-21
in United States
20 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 94 km/h
Maximum storm surge 0.2 m (20 Aug 07:45 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 94 km/h 0.2 m 268 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)

TOP

Wind

58 km/h

Up to 10 thousand can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 20 Aug 2021 00:00 UTC
CategoryCountryPopulation 
Tropical StormUnited States13,775 

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 00:00 108 -
- - - - - United States
Download:





Impact estimation for the next 72h
TOP

Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 20 Aug 2021 00:00 UTC
LevelCountryPopulation 
100-250 mmUnited States351 
50-100 mmCanada, United States3,070,141
+
Canada67,200 
United States3,002,940 

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 00:00 272 Few people
- - - - Canada, 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 20 Aug 2021 07:45 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 20 Aug 2021 00:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
20 Aug 2021 07:45 Port Greville Canada  0.2
20 Aug 2021 07:45 Canning Canada  0.2
20 Aug 2021 07:45 Scots Bay Canada  0.2
20 Aug 2021 07:45 Kingsport Canada  0.2
20 Aug 2021 07:45 Parrsboro Canada  0.2
20 Aug 2021 08:15 Hall Harbour Canada  0.2
20 Aug 2021 08:15 Port Williams Canada  0.2
20 Aug 2021 08:15 Apple River Canada  0.2
20 Aug 2021 08:15 Advocate Harbour Canada  0.2
20 Aug 2021 08:15 Spencer Island Canada  0.2
20 Aug 2021 09:15 Alma Canada  0.2
20 Aug 2021 09:15 Cape Enrage Canada  0.2
20 Aug 2021 08:00 Morden Canada  0.2
20 Aug 2021 09:00 Saint Martins Canada  0.2
20 Aug 2021 09:15 Margaretsville Canada  0.2
20 Aug 2021 10:45 Robbinston United States  0.2
20 Aug 2021 10:45 Perry United States  0.2
20 Aug 2021 10:45 Saint Andrews Canada  0.2
20 Aug 2021 10:45 Pleasant Point United States  0.2
20 Aug 2021 10:45 Quoddy United States  0.2
20 Aug 2021 10:45 Eastport United States  0.2
20 Aug 2021 10:45 Richardson Canada  0.2
20 Aug 2021 10:45 Welshpool Canada  0.2
20 Aug 2021 10:45 L'Etete Canada  0.2
20 Aug 2021 09:30 Marshall Cove Canada  0.2
20 Aug 2021 12:00 Searsport United States  0.2
20 Aug 2021 12:00 Dark Harbor United States  0.2
20 Aug 2021 12:00 Isleboro United States  0.2
20 Aug 2021 12:00 North Islesboro United States  0.2
20 Aug 2021 12:00 Pulpit Harbor United States  0.2
20 Aug 2021 12:00 Castine United States  0.2
20 Aug 2021 12:00 Goose Rocks United States  0.2
20 Aug 2021 12:00 Goose Falls United States  0.2
20 Aug 2021 12:00 Fort George United States  0.2
20 Aug 2021 12:00 Cape Rosier United States  0.2
20 Aug 2021 12:00 Flat Landing United States  0.2
20 Aug 2021 12:00 Stover Corner United States  0.2
20 Aug 2021 12:00 Eggemoggin United States  0.2
20 Aug 2021 12:00 Herricks United States  0.2
20 Aug 2021 12:00 Sunset United States  0.2
20 Aug 2021 12:00 Deer Isle United States  0.2
20 Aug 2021 12:00 Black Corner United States  0.2
20 Aug 2021 12:00 Sargentville United States  0.2
20 Aug 2021 12:00 Stonington United States  0.2
20 Aug 2021 10:30 Saint George Canada  0.2
20 Aug 2021 07:45 Larry's River Canada  0.2
20 Aug 2021 07:45 Half Island Cove Canada  0.2
20 Aug 2021 07:45 Whitehead Canada  0.2
20 Aug 2021 00:15 Arichat Canada  0.2
20 Aug 2021 00:15 Canso Canada  0.2
20 Aug 2021 00:15 Petit-de-Grat Canada  0.2
20 Aug 2021 12:00 Dog Island Corner United States  0.2
20 Aug 2021 12:00 Greenlaws Corner United States  0.2
20 Aug 2021 12:00 Lincolnville United States  0.2
20 Aug 2021 12:00 Herricks Corner United States  0.2
20 Aug 2021 12:00 Belfast United States  0.2
20 Aug 2021 12:00 Shermans Corner United States  0.2
20 Aug 2021 12:00 Bayside United States  0.2
20 Aug 2021 12:00 Kendalls Corner United States  0.1
20 Aug 2021 12:00 Camden United States  0.1
20 Aug 2021 12:00 Hayford Corner United States  0.1
20 Aug 2021 12:00 Holmes Mill United States  0.1
20 Aug 2021 12:00 Stevens Corner United States  0.1
20 Aug 2021 12:00 Simpsons Corner United States  0.1
20 Aug 2021 12:00 City Point United States  0.1
20 Aug 2021 12:00 Stockton Springs United States  0.1
20 Aug 2021 12:00 Sandy Point United States  0.1
20 Aug 2021 12:00 West Penobscot United States  0.1
20 Aug 2021 00:30 Gabarus Canada  0.1
20 Aug 2021 12:00 Tenants Harbor United States  0.1
20 Aug 2021 12:00 Elmore United States  0.1
20 Aug 2021 12:00 Saint George United States  0.1
20 Aug 2021 12:00 Clark Island United States  0.1
20 Aug 2021 12:00 Spruce Head United States  0.1
20 Aug 2021 12:00 Blackinton Corners United States  0.1
20 Aug 2021 12:00 Rockville United States  0.1
20 Aug 2021 12:00 Rockland United States  0.1
20 Aug 2021 12:00 Simonton Corners United States  0.1
20 Aug 2021 12:00 Melvin Heights United States  0.1
20 Aug 2021 12:00 Glen Cove United States  0.1
20 Aug 2021 12:00 Ash Point United States  0.1
20 Aug 2021 12:00 Rockport United States  0.1
20 Aug 2021 12:00 Owls Head United States  0.1
20 Aug 2021 00:15 Port Hawkesbury Canada  0.1
20 Aug 2021 00:15 Point Tupper Canada  0.1
20 Aug 2021 00:15 Evanston Canada  0.1
20 Aug 2021 12:00 North Haven United States  0.1
20 Aug 2021 12:00 Vinalhaven United States  0.1
20 Aug 2021 00:15 D'Escousse Canada  0.1
20 Aug 2021 00:45 Fourchu Canada  0.1
20 Aug 2021 08:15 Parkers Cove Canada  0.1
20 Aug 2021 11:00 Pocologan Canada  0.1
20 Aug 2021 11:00 Lepreau Canada  0.1
20 Aug 2021 11:00 Dipper Harbour West Canada  0.1
20 Aug 2021 11:00 Dipper Harbour Canada  0.1
20 Aug 2021 11:00 Musquash Canada  0.1
20 Aug 2021 08:15 Lookout United States  0.1
20 Aug 2021 08:15 Isle au Haut United States  0.1
20 Aug 2021 07:45 Tiverton Canada  0.1
20 Aug 2021 07:45 Church Point Canada  0.1
20 Aug 2021 07:45 Centreville Canada  0.1
20 Aug 2021 07:45 Weymouth Canada  0.1
20 Aug 2021 07:45 Waterford Canada  0.1
20 Aug 2021 10:45 Seal Cove Canada  0.1
20 Aug 2021 10:45 North Head Canada  0.1
20 Aug 2021 00:30 Saint Peters Canada  0.1
20 Aug 2021 00:30 L'Ardoise Canada  0.1
20 Aug 2021 11:00 Ridge United States  0.1
20 Aug 2021 11:00 Lubec United States  0.1
20 Aug 2021 00:45 Soldiers Cove Canada  0.1
20 Aug 2021 00:45 Grand River Canada  0.1
20 Aug 2021 09:30 Wedgeport Canada  0.1
20 Aug 2021 09:30 Tusket Canada  0.1
20 Aug 2021 09:30 Pubnico Canada  0.1
20 Aug 2021 12:00 Matinicus United States  0.1
20 Aug 2021 10:30 Lancaster Canada  0.1
20 Aug 2021 10:30 Saint John Canada  0.1
20 Aug 2021 09:30 Chebogue Point Canada  0.1
20 Aug 2021 09:30 Yarmouth Canada  0.1
20 Aug 2021 10:30 South Trescott United States  0.1
20 Aug 2021 07:45 Oceanville United States  0.1
20 Aug 2021 07:45 Mountainville United States  0.1
20 Aug 2021 07:45 Sedgwick United States  0.1
20 Aug 2021 07:45 Reach United States  0.1
20 Aug 2021 07:45 Sunshine United States  0.1
20 Aug 2021 07:45 Brooklin United States  0.1
20 Aug 2021 10:30 Cutler United States  0.1
20 Aug 2021 07:15 Westport Canada  0.1
20 Aug 2021 07:15 Freeport Canada  0.1
20 Aug 2021 07:15 Meteghan Canada  0.1
20 Aug 2021 10:00 Little Machias United States  0.1
20 Aug 2021 12:00 Pleasant Point United States  0.1
20 Aug 2021 12:00 Glenmere United States  0.1
20 Aug 2021 12:00 Port Clyde United States  0.1
20 Aug 2021 12:00 Cushing United States  0.1
20 Aug 2021 11:45 Criehaven United States  0.1
20 Aug 2021 11:00 Frenchboro United States  0.1
20 Aug 2021 11:00 Indian Point United States  0.1
20 Aug 2021 11:00 Tremont United States  0.1
20 Aug 2021 11:00 Somesville United States  0.1
20 Aug 2021 11:00 Bass Harbor United States  0.1
20 Aug 2021 11:00 Southwest Harbor United States  0.1
20 Aug 2021 11:00 Hall Quarry United States  0.1
20 Aug 2021 11:00 Asticou United States  0.1
20 Aug 2021 11:00 Cranberry Isles United States  0.1
20 Aug 2021 11:00 Seal Harbor United States  0.1
20 Aug 2021 11:00 Islesford United States  0.1
20 Aug 2021 11:00 Bar Harbor United States  0.1
20 Aug 2021 11:00 Winter Harbor United States  0.1
20 Aug 2021 10:30 Smithville United States  0.1
20 Aug 2021 10:30 East Steuben United States  0.1
20 Aug 2021 10:30 Pigeon Hill United States  0.1
20 Aug 2021 10:30 Milbridge United States  0.1
20 Aug 2021 10:30 Wyman United States  0.1
20 Aug 2021 10:30 West Harrington United States  0.1
20 Aug 2021 10:30 Ripley United States  0.1
20 Aug 2021 10:30 Indian River United States  0.1
20 Aug 2021 07:15 Jonesport United States  0.1
20 Aug 2021 07:15 Monsapec United States  0.1
20 Aug 2021 07:15 Sealand United States  0.1
20 Aug 2021 10:00 Lower Woods Harbour Canada  0.1
20 Aug 2021 07:30 Roque Bluffs United States  0.1
20 Aug 2021 07:30 Starboard United States  0.1
20 Aug 2021 07:30 Larrabee United States  0.1
20 Aug 2021 07:30 Bucks Harbor United States  0.1
20 Aug 2021 07:30 Dog Town United States  0.1
20 Aug 2021 08:00 Millers Crossing United States  0.1
20 Aug 2021 08:00 Arundel United States  0.1
20 Aug 2021 08:00 Kennebunkport United States  0.1
20 Aug 2021 08:00 Beacon Corner United States  0.1
20 Aug 2021 08:00 Adams Corner United States  0.1
20 Aug 2021 08:00 Cape Porpoise United States  0.1
20 Aug 2021 08:00 Oak Ridge United States  0.1
20 Aug 2021 08:00 Guinea Corner United States  0.1
20 Aug 2021 08:00 Tattle Corner United States  0.1
20 Aug 2021 08:00 Pine Park United States  0.1
20 Aug 2021 08:00 Newtown United States  0.1
20 Aug 2021 08:00 Goose Rocks Beach United States  0.1
20 Aug 2021 08:00 Dunegrass Golf Community United States  0.1
20 Aug 2021 08:00 Bay View United States  0.1
20 Aug 2021 08:00 Camp Ellis United States  0.1
20 Aug 2021 08:00 Old Orchard Beach United States  0.1
20 Aug 2021 08:00 Surfside United States  0.1
20 Aug 2021 08:00 Blue Point United States  0.1
20 Aug 2021 08:00 Scarborough United States  0.1
20 Aug 2021 08:00 Pine Point Beach United States  0.1
20 Aug 2021 08:00 Pleasant Hill United States  0.1
20 Aug 2021 08:00 Bradleys Corner United States  0.1
20 Aug 2021 08:00 Higgins Beach United States  0.1
20 Aug 2021 08:00 West End United States  0.1
20 Aug 2021 08:00 Portland United States  0.1
20 Aug 2021 08:00 South Portland United States  0.1
20 Aug 2021 08:00 Elizabeth Park United States  0.1
20 Aug 2021 08:00 Cape Cottage United States  0.1
20 Aug 2021 08:00 Cape Elizabeth United States  0.1
20 Aug 2021 08:00 Fort Levett United States  0.1
20 Aug 2021 07:30 Salmon River Canada  0.1