Overall Green alert Tropical Cyclone for HENRI-21
in United States
18 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 United States
Exposed population 150 thousand in Category 1 or higher
Maximum wind speed 65 km/h
Maximum storm surge 0.2 m (19 Aug 00:00 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 65 km/h 0.2 m 141 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 40 thousand can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 18 Aug 2021 12:00 UTC
CategoryCountryPopulation 
CAT. 5United States127,201 
CAT. 4United States5,622 
CAT. 3United States3,268 
CAT. 2United States2,919 
CAT. 1United States6,962 
Tropical StormUnited States35,356 

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 - 150 thousand
United States
Download:





Impact estimation for the next 72h
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Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 18 Aug 2021 12:00 UTC
LevelCountryPopulation 
100-250 mmUnited States706,739 
50-100 mmUnited States, Canada6,772,281
+
United States6,750,922 
Canada21,358 

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 12:00 207 710 thousand
- - - - United States, Canada




Impact estimation for the next 72h
TOP

StormSurge

0.2 m

The maximum Storm surge height is  0.2m in Shenandoah, United States. This height is estimated for 19 Aug 2021 00:00 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 18 Aug 2021 12:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
19 Aug 2021 00:00 Shenandoah United States  0.2
19 Aug 2021 00:00 Thorntown United States  0.2
19 Aug 2021 00:00 Delaware City United States  0.2
19 Aug 2021 00:00 Bay View Beach United States  0.2
19 Aug 2021 00:00 Fennimore Landing United States  0.2
19 Aug 2021 00:00 Taylors Bridge United States  0.2
19 Aug 2021 00:00 Shingle Landing United States  0.2
19 Aug 2021 00:00 Port Penn United States  0.2
19 Aug 2021 00:00 Flemings Landing United States  0.2
19 Aug 2021 00:00 Collins Beach United States  0.2
19 Aug 2021 00:00 Taylors Gut Landing United States  0.2
19 Aug 2021 00:00 Oakwood Beach United States  0.2
19 Aug 2021 00:00 Sinnickson Landing United States  0.2
19 Aug 2021 00:00 Woodland Beach United States  0.2
19 Aug 2021 00:00 Hagerville United States  0.2
19 Aug 2021 00:00 Salem United States  0.2
19 Aug 2021 00:00 Pine Island United States  0.2
19 Aug 2021 00:00 Bay Side United States  0.2
19 Aug 2021 00:00 Sea Breeze United States  0.2
19 Aug 2021 00:00 Loyds Corner United States  0.2
18 Aug 2021 23:30 Donas Landing United States  0.2
18 Aug 2021 23:30 Post Mahon United States  0.2
18 Aug 2021 23:30 Gandys Beach United States  0.2
18 Aug 2021 21:15 Port Greville Canada  0.2
18 Aug 2021 21:15 Canning Canada  0.2
18 Aug 2021 21:15 Scots Bay Canada  0.2
18 Aug 2021 21:15 Kingsport Canada  0.2
18 Aug 2021 21:15 Parrsboro Canada  0.2
18 Aug 2021 21:15 Hall Harbour Canada  0.2
18 Aug 2021 21:00 Port Williams Canada  0.2
18 Aug 2021 23:15 Little Creek United States  0.2
18 Aug 2021 23:15 Postles Corner United States  0.2
18 Aug 2021 23:15 Generals Greene United States  0.2
18 Aug 2021 21:15 Spencer Island Canada  0.2
18 Aug 2021 21:00 Apple River Canada  0.2
18 Aug 2021 21:00 Advocate Harbour Canada  0.2
18 Aug 2021 23:00 Fortescue United States  0.2
18 Aug 2021 22:45 Half Island Cove Canada  0.2
18 Aug 2021 22:45 Whitehead Canada  0.2
18 Aug 2021 22:30 Port Hawkesbury Canada  0.2
18 Aug 2021 22:30 Point Tupper Canada  0.2
18 Aug 2021 22:30 Evanston Canada  0.2
18 Aug 2021 22:15 Warren Landing United States  0.2
18 Aug 2021 22:15 Kitts Hummock United States  0.2
18 Aug 2021 22:15 Bowers United States  0.2
18 Aug 2021 22:15 Frenchs Mobile Homes United States  0.2
18 Aug 2021 22:30 Arichat Canada  0.1
18 Aug 2021 22:30 Canso Canada  0.1
18 Aug 2021 22:30 D'Escousse Canada  0.1
18 Aug 2021 22:30 Larry's River Canada  0.1
18 Aug 2021 22:45 Alma Canada  0.1
18 Aug 2021 22:45 Cape Enrage Canada  0.1
18 Aug 2021 22:45 Petit-de-Grat Canada  0.1
18 Aug 2021 22:30 Gabarus Canada  0.1
18 Aug 2021 22:00 Bivalve United States  0.1
19 Aug 2021 00:00 Elliott United States  0.1
19 Aug 2021 00:00 Bestpitch United States  0.1
19 Aug 2021 00:00 Nanticoke United States  0.1
19 Aug 2021 00:00 Waterview United States  0.1
19 Aug 2021 00:00 Dames Quarter United States  0.1
19 Aug 2021 00:00 Bivalve United States  0.1
19 Aug 2021 00:00 Twin River Trailer Park United States  0.1
19 Aug 2021 00:00 Tyaskin United States  0.1
19 Aug 2021 00:00 Wetipquin United States  0.1
19 Aug 2021 00:00 Coxs Corner United States  0.1
19 Aug 2021 00:00 Saint Stephen United States  0.1
19 Aug 2021 00:00 Gum Swamp United States  0.1
19 Aug 2021 00:00 Mount Vernon United States  0.1
19 Aug 2021 00:00 Clara United States  0.1
19 Aug 2021 00:00 Monie United States  0.1
19 Aug 2021 00:00 Whitehaven United States  0.1
19 Aug 2021 00:00 Venton United States  0.1
18 Aug 2021 21:30 Morden Canada  0.1
18 Aug 2021 21:45 Robbinston United States  0.1
18 Aug 2021 21:45 Perry United States  0.1
18 Aug 2021 21:45 Saint Andrews Canada  0.1
18 Aug 2021 21:45 Pleasant Point United States  0.1
18 Aug 2021 21:45 Richardson Canada  0.1
18 Aug 2021 21:45 L'Etete Canada  0.1
18 Aug 2021 21:45 Quoddy United States  0.1
18 Aug 2021 21:45 Eastport United States  0.1
18 Aug 2021 21:45 Welshpool Canada  0.1
18 Aug 2021 22:15 Fourchu Canada  0.1
18 Aug 2021 21:45 Saint George Canada  0.1
18 Aug 2021 21:30 Pleasant Plains United States  0.1
18 Aug 2021 21:30 Rossville United States  0.1
18 Aug 2021 21:30 Fresh Kills United States  0.1
18 Aug 2021 21:30 Annadale United States  0.1
18 Aug 2021 21:30 Great Kills United States  0.1
18 Aug 2021 21:30 Staten Island United States  0.1
18 Aug 2021 21:30 Bayonne United States  0.1
18 Aug 2021 21:30 Oakwood Beach United States  0.1
18 Aug 2021 21:30 West New Brighton United States  0.1
18 Aug 2021 21:30 Richmond United States  0.1
18 Aug 2021 21:30 Emerson Hill United States  0.1
18 Aug 2021 21:30 Greenville United States  0.1
18 Aug 2021 21:30 Saint George United States  0.1
18 Aug 2021 21:30 Clifton United States  0.1
18 Aug 2021 21:30 Arrochar United States  0.1
18 Aug 2021 21:30 Jersey City United States  0.1
18 Aug 2021 21:30 Croxton United States  0.1
18 Aug 2021 21:30 Communipaw United States  0.1
18 Aug 2021 21:30 Fort Hamilton United States  0.1
18 Aug 2021 21:30 Hoboken United States  0.1
18 Aug 2021 21:30 Bay Ridge United States  0.1
18 Aug 2021 21:30 Red Hook United States  0.1
18 Aug 2021 21:30 New York United States  0.1
18 Aug 2021 21:30 Bath Beach United States  0.1
18 Aug 2021 21:30 Fort Hancock United States  0.1
18 Aug 2021 21:30 Coney Island United States  0.1
18 Aug 2021 21:30 Park Slope United States  0.1
18 Aug 2021 21:30 Manhattan United States  0.1
18 Aug 2021 21:30 Gravesend United States  0.1
18 Aug 2021 21:30 Adelphi United States  0.1
18 Aug 2021 21:30 Brighton Beach United States  0.1
18 Aug 2021 21:30 Greenpoint United States  0.1
18 Aug 2021 21:30 Sunnyside United States  0.1
18 Aug 2021 21:30 Flatlands United States  0.1
18 Aug 2021 21:30 Astoria United States  0.1
18 Aug 2021 21:30 Breezy Point United States  0.1
18 Aug 2021 21:30 Gerritsen United States  0.1
18 Aug 2021 21:30 Haberman United States  0.1
18 Aug 2021 21:30 Bergen Beach United States  0.1
18 Aug 2021 21:30 Woodside United States  0.1
18 Aug 2021 21:30 Steinway United States  0.1
18 Aug 2021 22:00 Saint Peters Canada  0.1
18 Aug 2021 22:00 L'Ardoise Canada  0.1
18 Aug 2021 22:00 Soldiers Cove Canada  0.1
18 Aug 2021 14:45 Mahone Bay Canada  0.1
18 Aug 2021 14:45 La Have Canada  0.1
18 Aug 2021 14:45 Lunenburg Canada  0.1