Overall Green alert Tropical Cyclone for TWENTYEIGH-21
in New Caledonia
10 Apr 2021 18 UTC
click on to select bulletin time
Impact Single TC
Impact based on all weather systems in the area

Impact

Tropical Cyclone TWENTYEIGH-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 79 km/h
Maximum storm surge 0.3 m (10 Apr 19:45 UTC)
Vulnerability Medium (New Caledonia)

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 79 km/h 0.3 m 74 mm 0.5
GFS Overall 79 km/h 0.3 m 216 mm 0.5

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

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Wind

79 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 10 Apr 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 10 Apr 2021 18:00 90 - - - - - - -
Download:





Impact estimation for the next 72h
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Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 10 Apr 2021 18:00 UTC
LevelCountryPopulation 
100-250 mmNew Caledonia1,058 
50-100 mmNew Caledonia32,579 

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 10 Apr 2021 18:00 273 1 thousand
- - - - New Caledonia




Impact estimation for the next 72h
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StormSurge

0.3 m

The maximum Storm surge height is  0.3m in Prony, New Caledonia. This height is estimated for 10 Apr 2021 19:45 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 10 Apr 2021 18:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
10 Apr 2021 19:45 Prony New Caledonia  0.3
10 Apr 2021 19:45 Ouara New Caledonia  0.3
10 Apr 2021 19:45 Waho New Caledonia  0.3
10 Apr 2021 19:45 Goro New Caledonia  0.3
10 Apr 2021 19:00 Gadji New Caledonia  0.2
10 Apr 2021 19:15 Kuto New Caledonia  0.2
10 Apr 2021 19:15 Wapan New Caledonia  0.2
10 Apr 2021 19:15 Vao New Caledonia  0.2
10 Apr 2021 23:45 Gebelum Australia  0.2
10 Apr 2021 23:45 Dunwich Australia  0.2
10 Apr 2021 23:45 Wallen Wallen Australia  0.2
10 Apr 2021 23:45 Kooringal Australia  0.2
10 Apr 2021 23:45 Amity Point Australia  0.2
10 Apr 2021 23:45 Point Lookout Australia  0.2
10 Apr 2021 22:15 Bohnock Australia  0.2
10 Apr 2021 22:15 Old Bar Australia  0.2
10 Apr 2021 22:15 Mitchells Island Australia  0.2
10 Apr 2021 22:15 Mitchells Australia  0.2
10 Apr 2021 22:15 Harrington Australia  0.2
10 Apr 2021 22:15 Coral Ville Australia  0.2
10 Apr 2021 22:30 Evans Head Australia  0.2
10 Apr 2021 22:30 Broadwater Australia  0.2
10 Apr 2021 22:30 Wardell Australia  0.2
10 Apr 2021 22:30 Empire Vale Australia  0.2
11 Apr 2021 00:00 Upper Corindi Australia  0.1
11 Apr 2021 00:00 Woogoolga Australia  0.1
11 Apr 2021 00:00 Corindi Australia  0.1
11 Apr 2021 00:00 Red Rock Australia  0.1
11 Apr 2021 00:00 Wooli Australia  0.1
11 Apr 2021 00:00 Moore Park Australia  0.1
11 Apr 2021 00:00 Fairymead Australia  0.1
11 Apr 2021 00:00 Port Bundaberg Australia  0.1
11 Apr 2021 00:00 The Grange Australia  0.1
11 Apr 2021 00:00 Burnett Heads Australia  0.1
11 Apr 2021 00:00 Bargara Australia  0.1
10 Apr 2021 23:00 Bribie View Australia  0.1
10 Apr 2021 23:00 Donnybrook Australia  0.1
10 Apr 2021 23:00 Bribie Australia  0.1
10 Apr 2021 23:00 Caloundra Australia  0.1
10 Apr 2021 19:45 Nde New Caledonia  0.1
10 Apr 2021 19:45 Paita New Caledonia  0.1
10 Apr 2021 19:45 Nouville New Caledonia  0.1
10 Apr 2021 19:45 Noumea New Caledonia  0.1
10 Apr 2021 19:45 Dumbea New Caledonia  0.1
10 Apr 2021 19:45 Comm. du Mont-Dore New Caledonia  0.1
10 Apr 2021 19:45 Saint-Louis New Caledonia  0.1
10 Apr 2021 23:45 Avondale Australia  0.1
10 Apr 2021 20:30 Plum New Caledonia  0.1
10 Apr 2021 22:30 Canalpin Australia  0.1
10 Apr 2021 22:30 Stuarts Point Australia  0.1
10 Apr 2021 22:30 Kinchela Creek Australia  0.1
10 Apr 2021 22:30 Pelican Island Australia  0.1
10 Apr 2021 22:30 Jerseyville Australia  0.1
10 Apr 2021 22:30 Cooloondurri Australia  0.1
10 Apr 2021 22:30 Arakoon Australia  0.1
10 Apr 2021 23:00 Maroochydore Australia  0.1
10 Apr 2021 23:00 Mooloolaba Australia  0.1
10 Apr 2021 22:30 Bulwer Australia  0.1
10 Apr 2021 22:30 Cowan Cowan Australia  0.1
10 Apr 2021 22:30 Tangalooma Australia  0.1
10 Apr 2021 22:30 Laurieton Australia  0.1
10 Apr 2021 22:30 Dunbogan Australia  0.1
10 Apr 2021 22:30 North Haven Australia  0.1
10 Apr 2021 22:30 Port Macquarie Australia  0.1
10 Apr 2021 22:30 Tumbulgum Australia  0.1
10 Apr 2021 22:30 North Tumbulgum Australia  0.1
10 Apr 2021 22:30 Terranora Australia  0.1
10 Apr 2021 22:30 Mullumbimby Australia  0.1
10 Apr 2021 22:30 Yelgun Australia  0.1
10 Apr 2021 22:30 Stotts Creek Australia  0.1
10 Apr 2021 22:30 Duranbah Australia  0.1
10 Apr 2021 22:30 Sleepy Hollow Australia  0.1
10 Apr 2021 22:30 Billinudgel Australia  0.1
10 Apr 2021 22:30 Warwick Park Australia  0.1
10 Apr 2021 22:30 Brunswick Heads Australia  0.1
10 Apr 2021 22:30 Brunswick Australia  0.1
10 Apr 2021 22:30 Round Mountain Australia  0.1
10 Apr 2021 22:30 New Brighton Australia  0.1
10 Apr 2021 22:30 Cudgen Australia  0.1
10 Apr 2021 22:30 Chinderah Australia  0.1
10 Apr 2021 22:30 Lower Cudgera Australia  0.1
10 Apr 2021 22:30 Kingscliff Australia  0.1
10 Apr 2021 22:30 Tyagarah Australia  0.1
10 Apr 2021 19:15 Mamie New Caledonia  0.1
10 Apr 2021 19:15 Yate-Village New Caledonia  0.1
10 Apr 2021 22:45 Ometteux New Caledonia  0.1
10 Apr 2021 22:45 Ponerihouen New Caledonia  0.1
10 Apr 2021 22:45 Bayes New Caledonia  0.1
10 Apr 2021 22:45 Mou New Caledonia  0.1
10 Apr 2021 22:45 Moneo New Caledonia  0.1
10 Apr 2021 22:45 Ho New Caledonia  0.1
10 Apr 2021 22:45 Meomo New Caledonia  0.1
10 Apr 2021 22:30 Piggabeen Australia  0.1
10 Apr 2021 22:30 Bilambil Australia  0.1
10 Apr 2021 22:30 Tweed Heads Australia  0.1
10 Apr 2021 22:30 Coolangatta Australia  0.1
10 Apr 2021 22:30 Kingscliff-Fingal Australia  0.1
10 Apr 2021 22:00 Ouanache New Caledonia  0.1
10 Apr 2021 22:00 Paola New Caledonia  0.1
10 Apr 2021 22:00 Vieux Tuho New Caledonia  0.1
10 Apr 2021 22:00 Touho New Caledonia  0.1
10 Apr 2021 22:00 Kokengone New Caledonia  0.1
10 Apr 2021 22:30 Ewingsdale Australia  0.1
10 Apr 2021 22:30 Byron Bay Australia  0.1
10 Apr 2021 22:45 Poindimie New Caledonia  0.1
10 Apr 2021 22:15 Woolgoolga Australia  0.1
10 Apr 2021 22:45 Redland Bay Australia  0.1
10 Apr 2021 22:45 Victoria Point Australia  0.1
10 Apr 2021 22:45 Woongoolba Australia  0.1
10 Apr 2021 22:45 Norwell Australia  0.1
10 Apr 2021 22:45 Steiglitz Australia  0.1
10 Apr 2021 22:30 Harwood Australia  0.1
10 Apr 2021 22:30 Chatsworth Island Australia  0.1
10 Apr 2021 22:30 Chatsworth Australia  0.1
10 Apr 2021 22:30 Woombah Australia  0.1
10 Apr 2021 22:30 Palmers Island Australia  0.1
10 Apr 2021 22:30 Iluka Australia  0.1
11 Apr 2021 00:00 Tin Can Bay Australia  0.1