Overall Green alert Tropical Cyclone for HENRI-21
in United States
18 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
Exposed population No people in Category 1 or higher
Maximum wind speed 0 km/h
Maximum storm surge 0.2 m (18 Aug 01:45 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 0 km/h 0.2 m 63 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 18 Aug 2021 00:00 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 - - - - - - -
GREEN 6 18 Aug 2021 00:00 54 - - - - - - -
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 00:00 UTC
LevelCountryPopulation 
100-250 mmUnited States813,003 
50-100 mmUnited States4,025,396 

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 00:00 181 810 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 Shenandoah, United States. This height is estimated for 18 Aug 2021 01:45 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 18 Aug 2021 00:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
18 Aug 2021 01:45 Shenandoah United States  0.2
18 Aug 2021 01:45 Thorntown United States  0.2
18 Aug 2021 01:45 Delaware City United States  0.2
18 Aug 2021 01:45 Bay View Beach United States  0.2
18 Aug 2021 01:45 Fennimore Landing United States  0.2
18 Aug 2021 01:45 Taylors Bridge United States  0.2
18 Aug 2021 01:45 Shingle Landing United States  0.2
18 Aug 2021 01:45 Port Penn United States  0.2
18 Aug 2021 01:45 Flemings Landing United States  0.2
18 Aug 2021 01:45 Collins Beach United States  0.2
18 Aug 2021 01:45 Taylors Gut Landing United States  0.2
18 Aug 2021 01:45 Oakwood Beach United States  0.2
18 Aug 2021 01:45 Sinnickson Landing United States  0.2
18 Aug 2021 01:45 Woodland Beach United States  0.2
18 Aug 2021 01:45 Hagerville United States  0.2
18 Aug 2021 01:45 Salem United States  0.2
18 Aug 2021 01:45 Pine Island United States  0.2
18 Aug 2021 01:45 Bay Side United States  0.2
18 Aug 2021 02:15 Sea Breeze United States  0.1
18 Aug 2021 02:15 Loyds Corner United States  0.1
18 Aug 2021 03:15 Donas Landing United States  0.1
18 Aug 2021 03:15 Post Mahon United States  0.1
18 Aug 2021 03:00 Gandys Beach United States  0.1
18 Aug 2021 11:45 Port Greville Canada  0.1
18 Aug 2021 11:45 Canning Canada  0.1
18 Aug 2021 11:45 Scots Bay Canada  0.1
18 Aug 2021 11:45 Kingsport Canada  0.1
18 Aug 2021 11:45 Parrsboro Canada  0.1
18 Aug 2021 03:15 Little Creek United States  0.1
18 Aug 2021 03:15 Postles Corner United States  0.1
18 Aug 2021 03:15 Generals Greene 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
18 Aug 2021 03:15 Fortescue United States  0.1
18 Aug 2021 02:15 Warren Landing United States  0.1
18 Aug 2021 02:15 Kitts Hummock United States  0.1
18 Aug 2021 02:15 Bowers United States  0.1
18 Aug 2021 02:15 Frenchs Mobile Homes United States  0.1
18 Aug 2021 04:00 Mahone Bay Canada  0.1
18 Aug 2021 04:00 La Have Canada  0.1
18 Aug 2021 04:00 Lunenburg Canada  0.1
18 Aug 2021 04:30 Halifax Canada  0.1
18 Aug 2021 04:30 Dartmouth Canada  0.1
18 Aug 2021 04:30 Eastern Passage Canada  0.1
18 Aug 2021 05:15 Hall Harbour Canada  0.1
18 Aug 2021 05:15 Port Williams Canada  0.1
18 Aug 2021 11:45 Gabarus Canada  0.1
18 Aug 2021 05:15 Spencer Island Canada  0.1