Overall Green alert Tropical Cyclone for HENRI-21
in United States
17 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 HWRF
Exposed countries
Exposed population No people in Category 1 or higher
Maximum wind speed 90 km/h
Maximum storm surge 0.2 m (17 Aug 14:45 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
HWRF Current 90 km/h 0.2 m 216 mm 0.5
HWRF Overall 166 km/h 0.8 m 488 mm 0.5

Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)

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Wind

166 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 12:00 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 72 - - - - - - -
GREEN 2 16 Aug 2021 06:00 68 - - - - - - -
GREEN 3 16 Aug 2021 12:00 79 - - - - - - -
GREEN 4 16 Aug 2021 18:00 83 - - - - - - -
GREEN 5 17 Aug 2021 00:00 83 - - - - - - -
GREEN 6 17 Aug 2021 06:00 122 - - - - - - -
GREEN 7 17 Aug 2021 12:00 130 - - - - - - -
Download:





Impact estimation for the next 72h
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Rainfall





Rain exposed population - AoIs

No exposed population (greater than 50mm) based on the bulletin of 17 Aug 2021 12:00 UTC

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 00:00 191 - - - - - - -
Blue 2 16 Aug 2021 06:00 225 - - - - - - -
Blue 3 16 Aug 2021 12:00 220 - - - - - - -
Blue 4 16 Aug 2021 18:00 196 - - - - - - -
Blue 5 17 Aug 2021 00:00 165 - - - - - - -
Blue 6 17 Aug 2021 06:00 330 - - - - - - -
Blue 7 17 Aug 2021 12:00 423 - - - - - - -




Impact estimation for the next 72h
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StormSurge

0.2 m

The maximum Storm surge height is  0.2m in Port Greville, Canada. This height is estimated for 17 Aug 2021 14:45 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 17 Aug 2021 12:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
17 Aug 2021 14:45 Port Greville Canada  0.2
17 Aug 2021 14:45 Canning Canada  0.2
17 Aug 2021 14:45 Scots Bay Canada  0.2
17 Aug 2021 14:45 Kingsport Canada  0.2
17 Aug 2021 14:45 Parrsboro Canada  0.2
17 Aug 2021 14:30 Hall Harbour Canada  0.2
17 Aug 2021 14:15 Port Williams Canada  0.2
17 Aug 2021 14:15 Spencer Island Canada  0.2
17 Aug 2021 14:15 Apple River Canada  0.2
17 Aug 2021 14:15 Advocate Harbour Canada  0.2
17 Aug 2021 14:30 Morden Canada  0.2
17 Aug 2021 16:30 Gabarus Canada  0.1
17 Aug 2021 14:45 Alma Canada  0.1
17 Aug 2021 14:45 Cape Enrage Canada  0.1
17 Aug 2021 12:30 Larry's River Canada  0.1
17 Aug 2021 12:30 Half Island Cove Canada  0.1
17 Aug 2021 12:30 Whitehead Canada  0.1
17 Aug 2021 15:45 Arichat Canada  0.1
17 Aug 2021 15:45 D'Escousse Canada  0.1
17 Aug 2021 15:45 Petit-de-Grat Canada  0.1
17 Aug 2021 15:45 Saint Peters Canada  0.1
17 Aug 2021 15:45 L'Ardoise Canada  0.1
17 Aug 2021 15:45 Soldiers Cove Canada  0.1
17 Aug 2021 16:00 Canso Canada  0.1
17 Aug 2021 14:45 Margaretsville Canada  0.1
17 Aug 2021 14:15 Petite Riviere Bridge Canada  0.1
17 Aug 2021 14:15 La Have Canada  0.1
17 Aug 2021 14:15 Lunenburg Canada  0.1
17 Aug 2021 15:45 Grand River Canada  0.1
17 Aug 2021 17:00 Liscomb Canada  0.1
17 Aug 2021 17:00 Sherbrooke Canada  0.1
17 Aug 2021 17:00 Sonora Canada  0.1
17 Aug 2021 16:00 Evanston Canada  0.1
17 Aug 2021 16:15 Port Mouton Canada  0.1
17 Aug 2021 16:15 Milton Canada  0.1
17 Aug 2021 16:15 Liverpool Canada  0.1
17 Aug 2021 16:15 Western Head Canada  0.1
17 Aug 2021 16:15 Port Hawkesbury Canada  0.1
17 Aug 2021 16:15 Point Tupper Canada  0.1
17 Aug 2021 14:30 Halifax Canada  0.1
17 Aug 2021 14:30 Dartmouth Canada  0.1
17 Aug 2021 14:30 Eastern Passage Canada  0.1
17 Aug 2021 15:15 Saint Martins Canada  0.1
17 Aug 2021 14:00 Ocracoke United States  0.1
17 Aug 2021 14:00 Widgen Woods United States  0.1
17 Aug 2021 14:00 Hubbards Canada  0.1
17 Aug 2021 14:00 Robbinston United States  0.1
17 Aug 2021 14:00 Perry United States  0.1
17 Aug 2021 14:00 Saint Andrews Canada  0.1
17 Aug 2021 14:00 Pleasant Point United States  0.1
17 Aug 2021 14:00 Quoddy United States  0.1
17 Aug 2021 14:00 Eastport United States  0.1
17 Aug 2021 14:00 Richardson Canada  0.1
17 Aug 2021 14:00 Welshpool Canada  0.1
17 Aug 2021 14:00 L'Etete Canada  0.1
17 Aug 2021 16:15 Fourchu Canada  0.1