Overall Green alert Tropical Cyclone for HENRI-21
in United States
17 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 GFS
Exposed countries
Exposed population No people in Category 1 or higher
Maximum wind speed 54 km/h
Maximum storm surge 0.2 m (17 Aug 00:30 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 54 km/h 0.2 m 35 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)

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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 17 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 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 86 - - - - - - -
Download:





Impact estimation for the next 72h
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Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 17 Aug 2021 00:00 UTC
LevelCountryPopulation 
50-100 mmUnited States1,907,375 

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 00:00 210 -
- - - - - 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 17 Aug 2021 00:30 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 17 Aug 2021 00:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
17 Aug 2021 00:30 Shenandoah United States  0.2
17 Aug 2021 00:30 Thorntown United States  0.2
17 Aug 2021 00:30 Delaware City United States  0.2
17 Aug 2021 00:30 Bay View Beach United States  0.2
17 Aug 2021 00:30 Fennimore Landing United States  0.2
17 Aug 2021 00:30 Taylors Bridge United States  0.2
17 Aug 2021 00:30 Shingle Landing United States  0.2
17 Aug 2021 00:30 Port Penn United States  0.2
17 Aug 2021 00:30 Flemings Landing United States  0.2
17 Aug 2021 00:30 Collins Beach United States  0.2
17 Aug 2021 00:30 Taylors Gut Landing United States  0.2
17 Aug 2021 00:30 Oakwood Beach United States  0.2
17 Aug 2021 00:30 Sinnickson Landing United States  0.2
17 Aug 2021 00:30 Woodland Beach United States  0.2
17 Aug 2021 00:30 Hagerville United States  0.2
17 Aug 2021 00:30 Salem United States  0.2
17 Aug 2021 00:30 Pine Island United States  0.2
17 Aug 2021 00:30 Bay Side United States  0.2
17 Aug 2021 00:30 Sea Breeze United States  0.2
17 Aug 2021 00:30 Loyds Corner United States  0.2
17 Aug 2021 00:15 Donas Landing United States  0.1
17 Aug 2021 00:15 Post Mahon United States  0.1
17 Aug 2021 02:45 Little Creek United States  0.1
17 Aug 2021 02:45 Postles Corner United States  0.1
17 Aug 2021 02:45 Generals Greene United States  0.1
17 Aug 2021 02:45 Gandys Beach United States  0.1
17 Aug 2021 02:30 Fortescue United States  0.1
17 Aug 2021 02:00 Warren Landing United States  0.1
17 Aug 2021 02:00 Kitts Hummock United States  0.1
17 Aug 2021 02:00 Bowers United States  0.1
17 Aug 2021 02:00 Frenchs Mobile Homes United States  0.1
17 Aug 2021 03:00 Barco United States  0.1
17 Aug 2021 03:00 Coinjock United States  0.1
17 Aug 2021 03:00 Waterlilly United States  0.1
17 Aug 2021 03:00 Knotts Island United States  0.1
17 Aug 2021 03:00 Bertha United States  0.1
17 Aug 2021 03:00 Aydlett United States  0.1
17 Aug 2021 03:00 Poplar Branch United States  0.1
17 Aug 2021 03:00 Grandy United States  0.1
17 Aug 2021 03:00 Jarvisburg United States  0.1
17 Aug 2021 03:00 Corolla United States  0.1
17 Aug 2021 03:00 Caffys Inlet Hamlet United States  0.1
17 Aug 2021 01:45 Mispillion Light United States  0.1
17 Aug 2021 01:45 Slaughter Beach United States  0.1
17 Aug 2021 05:30 Alma Canada  0.1
17 Aug 2021 05:30 Cape Enrage Canada  0.1
17 Aug 2021 05:30 Apple River Canada  0.1
17 Aug 2021 03:00 Red Bank United States  0.1
17 Aug 2021 03:00 Cheapside United States  0.1
17 Aug 2021 03:00 Bayview United States  0.1
17 Aug 2021 03:00 Cape Center United States  0.1
17 Aug 2021 03:00 Cheriton United States  0.1
17 Aug 2021 03:00 Cedar Grove United States  0.1
17 Aug 2021 03:00 Fairview United States  0.1
17 Aug 2021 03:00 Townsend United States  0.1
17 Aug 2021 03:00 Capeville United States  0.1
17 Aug 2021 03:00 Kiptopeke United States  0.1
17 Aug 2021 03:00 Beverly United States  0.1
17 Aug 2021 03:00 Oyster United States  0.1
17 Aug 2021 04:00 Port Greville Canada  0.1
17 Aug 2021 04:00 Canning Canada  0.1
17 Aug 2021 04:00 Scots Bay Canada  0.1
17 Aug 2021 04:00 Kingsport Canada  0.1
17 Aug 2021 04:00 Parrsboro Canada  0.1
17 Aug 2021 03:00 Westerhouse Woods United States  0.1
17 Aug 2021 03:00 Silver Beach United States  0.1
17 Aug 2021 03:00 Peaceful Beach United States  0.1
17 Aug 2021 03:00 Deerfield Estates United States  0.1
17 Aug 2021 03:00 Harbour Point United States  0.1
17 Aug 2021 03:00 Simpkins United States  0.1
17 Aug 2021 03:00 Eastville United States  0.1
17 Aug 2021 03:00 Pleasant Cove Village United States  0.1
17 Aug 2021 03:00 Jamesville United States  0.1
17 Aug 2021 03:00 Bridgetown United States  0.1
17 Aug 2021 03:00 Kendall Grove United States  0.1
17 Aug 2021 03:00 Bayleys Neck Farm United States  0.1
17 Aug 2021 03:00 Johnsontown United States  0.1
17 Aug 2021 03:00 Martins Siding United States  0.1
17 Aug 2021 03:00 Machipongo United States  0.1
17 Aug 2021 03:00 Stewarts Landing United States  0.1
17 Aug 2021 03:00 Birdsnest United States  0.1
17 Aug 2021 03:00 Davis Wharf United States  0.1
17 Aug 2021 03:00 Wardtown United States  0.1
17 Aug 2021 03:00 Craddockville United States  0.1
17 Aug 2021 03:00 Nassawadox United States  0.1
17 Aug 2021 03:00 Hare Valley United States  0.1
17 Aug 2021 03:00 Nasswadox United States  0.1
17 Aug 2021 03:00 Marionville United States  0.1
17 Aug 2021 03:00 Coocheyville United States  0.1
17 Aug 2021 03:00 Red Bank United States  0.1
17 Aug 2021 03:00 Boston United States  0.1
17 Aug 2021 03:00 Belle Haven United States  0.1
17 Aug 2021 03:00 Exmore United States  0.1
17 Aug 2021 03:00 Oakland Park United States  0.1
17 Aug 2021 03:00 Pungoteague United States  0.1
17 Aug 2021 03:00 Middlesex United States  0.1
17 Aug 2021 03:00 Willis Wharf United States  0.1
17 Aug 2021 03:00 Bobtown United States  0.1
17 Aug 2021 03:00 Painter United States  0.1
17 Aug 2021 03:00 Cats Bridge United States  0.1
17 Aug 2021 03:00 Red Hill United States  0.1
17 Aug 2021 03:00 Quinby United States  0.1
17 Aug 2021 03:00 Broadwater United States  0.1
17 Aug 2021 03:00 Old Trower United States  0.1
17 Aug 2021 03:00 Chancetown United States  0.1
17 Aug 2021 03:00 Wachapreague United States  0.1
17 Aug 2021 05:30 Advocate Harbour Canada  0.1
17 Aug 2021 05:30 Spencer Island Canada  0.1