Overall Green alert Tropical Cyclone for HENRI-21
in United States
18 Aug 2021 18 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
Exposed population No people in Category 1 or higher
Maximum wind speed 108 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
GFS Current 108 km/h 0.2 m 132 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

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 18:00 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 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 18:00 130 - - - - - - -
Download:





Impact estimation for the next 72h
TOP

Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 18 Aug 2021 18:00 UTC
LevelCountryPopulation 
50-100 mmUnited States, Canada751,535
+
United States747,846 
Canada3,688 

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 18:00 290 -
- - - - - 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 18:00 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
19 Aug 2021 00:00 Donas Landing United States  0.2
19 Aug 2021 00:00 Post Mahon United States  0.2
19 Aug 2021 00:00 Gandys Beach United States  0.2
19 Aug 2021 00:00 Little Creek United States  0.2
19 Aug 2021 00:00 Postles Corner United States  0.2
19 Aug 2021 00:00 Generals Greene United States  0.2
18 Aug 2021 23:30 Fortescue United States  0.2
19 Aug 2021 00:00 Warren Landing United States  0.2
19 Aug 2021 00:00 Kitts Hummock United States  0.2
19 Aug 2021 00:00 Bowers United States  0.2
19 Aug 2021 00:00 Bivalve United States  0.2
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
19 Aug 2021 00:00 Frenchs Mobile Homes United States  0.1
18 Aug 2021 23:45 Port Norris United States  0.1
18 Aug 2021 23:45 Heislerville United States  0.1
18 Aug 2021 23:45 Delmont United States  0.1
18 Aug 2021 23:45 Miami Beach United States  0.1
18 Aug 2021 23:45 Villas United States  0.1
18 Aug 2021 23:45 Eldora United States  0.1
18 Aug 2021 23:45 Pierces Point United States  0.1
18 Aug 2021 23:45 Green Creek United States  0.1
19 Aug 2021 00:00 Erma United States  0.1
19 Aug 2021 00:00 Reeds Beach United States  0.1
19 Aug 2021 00:00 Dias Creek United States  0.1
19 Aug 2021 00:00 Rio Grande United States  0.1
19 Aug 2021 00:00 Whitesboro United States  0.1
19 Aug 2021 00:00 Goshen United States  0.1
19 Aug 2021 00:00 Burleigh United States  0.1
19 Aug 2021 00:00 Cape May Court House United States  0.1
19 Aug 2021 00:00 Grassy Sound United States  0.1
19 Aug 2021 00:00 Wildwood United States  0.1
19 Aug 2021 00:00 North Wildwood United States  0.1
19 Aug 2021 00:00 Scotch Bonnet United States  0.1
19 Aug 2021 00:00 Swainton United States  0.1
18 Aug 2021 18:30 Alma Canada  0.1
18 Aug 2021 18:30 Cape Enrage Canada  0.1
18 Aug 2021 18:30 Apple River Canada  0.1
18 Aug 2021 18:30 Advocate Harbour Canada  0.1
18 Aug 2021 18:30 Spencer Island Canada  0.1
19 Aug 2021 00:00 Cape May Point United States  0.1
19 Aug 2021 00:00 North Cape May United States  0.1
19 Aug 2021 00:00 West Cape May United States  0.1
19 Aug 2021 00:00 Cape May United States  0.1
19 Aug 2021 00:00 Cold Spring United States  0.1
19 Aug 2021 00:00 Schellenger Landing United States  0.1
18 Aug 2021 18:00 Morden Canada  0.1
18 Aug 2021 23:45 Wildwood Crest United States  0.1
19 Aug 2021 00:00 Mispillion Light United States  0.1
19 Aug 2021 00:00 Larry's River Canada  0.1
19 Aug 2021 00:00 Half Island Cove Canada  0.1
19 Aug 2021 00:00 Whitehead Canada  0.1
18 Aug 2021 18:00 Hall Harbour Canada  0.1
19 Aug 2021 00:00 Wenona United States  0.1
19 Aug 2021 00:00 Deal Island United States  0.1
19 Aug 2021 00:00 Chance United States  0.1
19 Aug 2021 00:00 Rumbley United States  0.1
19 Aug 2021 00:00 Oriole United States  0.1
19 Aug 2021 00:00 Fairmount United States  0.1
19 Aug 2021 00:00 Champ United States  0.1
19 Aug 2021 00:00 Upper Fairmount United States  0.1