Overall Green alert Tropical Cyclone for TWENTYEIGH-21
in New Caledonia
12 Apr 2021 00 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 ECMWF
Exposed countries New Caledonia
Exposed population No people in Category 1 or higher
Maximum wind speed 83 km/h
Maximum storm surge 0.3 m (10 Apr 10:15 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
ECMWF Current 83 km/h 0.3 m 507 mm 0.5
ECMWF Overall 83 km/h 0.3 m 507 mm 0.5

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

TOP

Wind

83 km/h

Up to Few people can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 12 Apr 2021 00:00 UTC (Overall situation)
CategoryCountryPopulation 
Tropical StormNew Caledonia65 

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 00:00 72 -
- - - - - New Caledonia
GREEN 2 10 Apr 2021 12:00 79 -
- - - - - New Caledonia
GREEN 3 11 Apr 2021 00:00 83 - - - - - - -
GREEN 4 11 Apr 2021 12:00 83 - - - - - - -
GREEN 5 12 Apr 2021 00:00 65 - - - - - - -
Download:





Impact estimation for the next 72h
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Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 12 Apr 2021 00:00 UTC (Overall situation)
LevelCountryPopulation 
100-250 mmVanuatu, New Caledonia219,626
+
Vanuatu751 
New Caledonia218,875 
50-100 mmVanuatu, New Caledonia60,859
+
Vanuatu20,852 
New Caledonia40,007 

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 00:00 204 7 thousand
- - - - New Caledonia
Blue 2 10 Apr 2021 12:00 175 - - - - - - -
Blue 3 11 Apr 2021 00:00 223 - - - - - - -
Blue 4 11 Apr 2021 12:00 148 - - - - - - -
Blue 5 12 Apr 2021 00:00 506 1 thousand
- - - - Vanuatu, New Caledonia




Impact estimation for the next 72h
TOP

StormSurge

0.3 m

The maximum Storm surge height is  0.3m in Avondale, Australia. This height is estimated for 10 Apr 2021 10:15 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 12 Apr 2021 00:00 UTC (Overall situation)
    
Alert Date (UTC) Name Country Storm surge height (m)
10 Apr 2021 10:15 Avondale Australia  0.3
10 Apr 2021 10:15 Moore Park Australia  0.3
10 Apr 2021 10:15 Fairymead Australia  0.3
10 Apr 2021 10:15 Port Bundaberg Australia  0.3
10 Apr 2021 10:15 The Grange Australia  0.3
10 Apr 2021 10:15 Burnett Heads Australia  0.3
10 Apr 2021 07:00 Ouanache New Caledonia  0.3
10 Apr 2021 07:00 Paola New Caledonia  0.3
10 Apr 2021 07:00 Vieux Tuho New Caledonia  0.3
10 Apr 2021 07:00 Touho New Caledonia  0.3
10 Apr 2021 07:00 Kokengone New Caledonia  0.3
10 Apr 2021 05:45 Pam New Caledonia  0.3
10 Apr 2021 05:45 Balaide New Caledonia  0.3
10 Apr 2021 05:45 Saint-Paul New Caledonia  0.3
10 Apr 2021 04:00 Tiabet New Caledonia  0.3
10 Apr 2021 04:00 Poum New Caledonia  0.3
10 Apr 2021 04:00 Poum-Plage New Caledonia  0.3
10 Apr 2021 06:15 Valla Australia  0.3
10 Apr 2021 06:15 Stuarts Point Australia  0.3
10 Apr 2021 06:15 Nambucca Australia  0.3
10 Apr 2021 06:15 Nambucca Australia  0.3
10 Apr 2021 06:15 Cooloondurri Australia  0.3
10 Apr 2021 06:15 Arakoon Australia  0.3
10 Apr 2021 09:30 Dundowran Australia  0.2
10 Apr 2021 09:30 Urraween Australia  0.2
10 Apr 2021 09:30 Point Vernon Australia  0.2
10 Apr 2021 09:30 Kawungan Australia  0.2
10 Apr 2021 09:30 Pialba Australia  0.2
10 Apr 2021 09:30 Scarness Australia  0.2
10 Apr 2021 09:30 Torquay Australia  0.2
10 Apr 2021 09:30 Urangan Australia  0.2
10 Apr 2021 09:30 Bingham Australia  0.2
10 Apr 2021 07:15 Ho New Caledonia  0.2
10 Apr 2021 07:15 Meomo New Caledonia  0.2
10 Apr 2021 07:15 Houailou New Caledonia  0.2
10 Apr 2021 07:15 Ouakaya New Caledonia  0.2
10 Apr 2021 07:15 Poro New Caledonia  0.2
10 Apr 2021 07:15 Kouaoua New Caledonia  0.2
10 Apr 2021 03:00 Arama New Caledonia  0.2
10 Apr 2021 06:45 Bohnock Australia  0.2
10 Apr 2021 06:45 Old Bar Australia  0.2
10 Apr 2021 06:45 Mitchells Island Australia  0.2
10 Apr 2021 06:45 Mitchells Australia  0.2
10 Apr 2021 06:45 Harrington Australia  0.2
10 Apr 2021 06:45 Coral Ville Australia  0.2
12 Apr 2021 23:30 Lautoka Fiji  0.2
12 Apr 2021 23:30 Nailanga Fiji  0.2
12 Apr 2021 23:30 Sorokoba Fiji  0.2
12 Apr 2021 23:30 Ba Fiji  0.2
12 Apr 2021 23:30 Natunuka Fiji  0.2
10 Apr 2021 02:30 Panane New Caledonia  0.2
10 Apr 2021 02:30 Mouane New Caledonia  0.2
10 Apr 2021 02:30 Ono New Caledonia  0.2
10 Apr 2021 02:30 Wala New Caledonia  0.2
10 Apr 2021 02:30 Bweo New Caledonia  0.2
10 Apr 2021 07:45 Ouasse New Caledonia  0.2
10 Apr 2021 04:15 Kinchela Creek Australia  0.2
10 Apr 2021 04:15 Pelican Island Australia  0.2
10 Apr 2021 04:15 Jerseyville Australia  0.2
10 Apr 2021 07:30 Burrum Australia  0.2
10 Apr 2021 07:30 Traviston Australia  0.2
10 Apr 2021 07:30 Toogoom Australia  0.2
10 Apr 2021 20:15 Bargara Australia  0.2
10 Apr 2021 01:15 Pairome New Caledonia  0.2
10 Apr 2021 07:45 Buxton Australia  0.2
10 Apr 2021 07:45 Woodgate Australia  0.2
10 Apr 2021 04:15 Belmore River Upper Australia  0.2
10 Apr 2021 04:15 Hat Head Australia  0.2
11 Apr 2021 07:45 Elliott Heads Australia  0.2
10 Apr 2021 04:30 Upper Corindi Australia  0.2
10 Apr 2021 04:30 Woogoolga Australia  0.2
10 Apr 2021 04:30 Corindi Australia  0.2
10 Apr 2021 04:30 Red Rock Australia  0.2
10 Apr 2021 04:30 Wooli Australia  0.2
10 Apr 2021 04:15 Benowa Australia  0.2
10 Apr 2021 04:15 Gold Coast Australia  0.2
10 Apr 2021 04:15 Southport Australia  0.2
10 Apr 2021 04:15 Surfers Paradise Australia  0.2
10 Apr 2021 04:15 Broadbeach Australia  0.2
10 Apr 2021 04:15 West Burleigh Australia  0.2
10 Apr 2021 04:15 Burleigh Heads Australia  0.2
10 Apr 2021 04:15 Tumbulgum Australia  0.2
10 Apr 2021 04:15 Piggabeen Australia  0.2
10 Apr 2021 04:15 Bilambil Australia  0.2
10 Apr 2021 04:15 North Tumbulgum Australia  0.2
10 Apr 2021 04:15 Palm Beach Australia  0.2
10 Apr 2021 04:15 Currumbin Australia  0.2
10 Apr 2021 04:15 Tugun Australia  0.2
10 Apr 2021 04:15 Terranora Australia  0.2
10 Apr 2021 04:15 Bilinga Australia  0.2
10 Apr 2021 04:15 Stotts Creek Australia  0.2
10 Apr 2021 04:15 Tweed Heads Australia  0.2
10 Apr 2021 04:15 Coolangatta Australia  0.2
10 Apr 2021 04:15 Kingscliff-Fingal Australia  0.2
10 Apr 2021 04:15 Cudgen Australia  0.2
10 Apr 2021 04:15 Chinderah Australia  0.2
10 Apr 2021 04:15 Kingscliff Australia  0.2
11 Apr 2021 03:45 Nde New Caledonia  0.2
11 Apr 2021 03:45 Paita New Caledonia  0.2
11 Apr 2021 03:45 Nouville New Caledonia  0.2
11 Apr 2021 03:45 Noumea New Caledonia  0.2
11 Apr 2021 03:45 Dumbea New Caledonia  0.2
11 Apr 2021 03:45 Comm. du Mont-Dore New Caledonia  0.2
11 Apr 2021 03:45 Saint-Louis New Caledonia  0.2
12 Apr 2021 18:00 Loanatom Vanuatu  0.2
12 Apr 2021 18:00 Loounemeloupang Vanuatu  0.2
12 Apr 2021 18:00 Lenakel Vanuatu  0.2
12 Apr 2021 18:00 Isangel Vanuatu  0.2
12 Apr 2021 18:00 Loonelapeun Vanuatu  0.2
12 Apr 2021 18:00 Loounimhapeun Vanuatu  0.2
12 Apr 2021 18:00 Laounalang Vanuatu  0.2
12 Apr 2021 18:00 Lowkahmal Vanuatu  0.2
12 Apr 2021 18:00 Lownepina Vanuatu  0.2
12 Apr 2021 18:00 Imwareupo Vanuatu  0.2
12 Apr 2021 18:00 Waisisi Vanuatu  0.2
12 Apr 2021 18:00 Isaka Vanuatu  0.2
12 Apr 2021 18:00 White Sands Vanuatu  0.2
12 Apr 2021 18:00 Ombous Vanuatu  0.2
12 Apr 2021 18:00 Ireupuow Vanuatu  0.2
10 Apr 2021 08:00 Saint-Denis New Caledonia  0.2
10 Apr 2021 08:00 Poindimie New Caledonia  0.2
10 Apr 2021 08:00 Ometteux New Caledonia  0.2
10 Apr 2021 08:00 Bayes New Caledonia  0.2
10 Apr 2021 03:45 Houone New Caledonia  0.2
10 Apr 2021 04:15 Laurieton Australia  0.2
10 Apr 2021 04:15 Dunbogan Australia  0.2
10 Apr 2021 04:15 North Haven Australia  0.2
10 Apr 2021 16:45 Gadji New Caledonia  0.2
10 Apr 2021 16:45 Kuto New Caledonia  0.2
10 Apr 2021 16:45 Wapan New Caledonia  0.2
10 Apr 2021 16:45 Vao New Caledonia  0.2
10 Apr 2021 12:15 Tomo New Caledonia  0.2
10 Apr 2021 07:00 Tipindje New Caledonia  0.2
10 Apr 2021 07:00 Pindache New Caledonia  0.2
10 Apr 2021 11:30 Plum New Caledonia  0.2
11 Apr 2021 03:30 Tavua Fiji  0.2
11 Apr 2021 03:30 Rabulu Fiji  0.2
10 Apr 2021 07:45 Pemberton Australia  0.2
10 Apr 2021 09:15 Wynnum Australia  0.2
10 Apr 2021 09:15 Manly Australia  0.2
10 Apr 2021 09:15 Capalaba Australia  0.2
10 Apr 2021 09:15 Birkdale Australia  0.2
10 Apr 2021 09:15 Wellington Point Australia  0.2
10 Apr 2021 09:15 Ormiston Australia  0.2
10 Apr 2021 09:15 Thornlands Australia  0.2
10 Apr 2021 09:15 Cleveland Australia  0.2
10 Apr 2021 09:15 Alberton Australia  0.2
10 Apr 2021 09:15 Carbrook Australia  0.2
10 Apr 2021 09:15 Raby Bay Australia  0.2
10 Apr 2021 09:15 Gilberton Australia  0.2
10 Apr 2021 09:15 Redland Bay Australia  0.2
10 Apr 2021 09:15 Victoria Point Australia  0.2
10 Apr 2021 09:15 Woongoolba Australia  0.2
10 Apr 2021 09:15 Steiglitz Australia  0.2
10 Apr 2021 09:15 Dunwich Australia  0.2
10 Apr 2021 09:15 Wallen Wallen Australia  0.2
10 Apr 2021 09:15 Canalpin Australia  0.2
10 Apr 2021 12:45 Mamie New Caledonia  0.2
10 Apr 2021 12:45 Yate-Village New Caledonia  0.2
10 Apr 2021 04:15 Moondarewa Australia  0.2
10 Apr 2021 04:15 Port Macquarie Australia  0.2
10 Apr 2021 13:15 Waho New Caledonia  0.2
10 Apr 2021 13:15 Goro New Caledonia  0.2
10 Apr 2021 11:15 Paagoumene New Caledonia  0.2
12 Apr 2021 23:00 Potnarvin Vanuatu  0.2
12 Apr 2021 23:00 Ipota Vanuatu  0.2
10 Apr 2021 04:00 Raleigh Australia  0.1
10 Apr 2021 04:00 Urunga Australia  0.1
10 Apr 2021 04:00 Repton Australia  0.1
10 Apr 2021 04:00 Bonville Australia  0.1
10 Apr 2021 04:00 Mylestom Australia  0.1
10 Apr 2021 04:00 Boambee Australia  0.1
10 Apr 2021 04:00 Sawtell Australia  0.1
10 Apr 2021 04:00 Hibbard Australia  0.1
10 Apr 2021 04:00 Crescent Head Australia  0.1
10 Apr 2021 04:00 Cresent Head Australia  0.1
10 Apr 2021 22:00 Ponerihouen New Caledonia  0.1
10 Apr 2021 22:00 Mou New Caledonia  0.1
10 Apr 2021 22:00 Moneo New Caledonia  0.1
10 Apr 2021 11:45 Prony New Caledonia  0.1
10 Apr 2021 11:45 Ouara New Caledonia  0.1
10 Apr 2021 12:15 Moindou New Caledonia  0.1
10 Apr 2021 16:15 Thio New Caledonia  0.1
10 Apr 2021 16:15 Saint-Gabriel New Caledonia  0.1
10 Apr 2021 16:15 Saint Roch New Caledonia  0.1
10 Apr 2021 16:15 Kuine New Caledonia  0.1
10 Apr 2021 16:15 Nakety New Caledonia  0.1
10 Apr 2021 07:00 Ouanpoues New Caledonia  0.1
10 Apr 2021 07:00 Hienghene New Caledonia  0.1
10 Apr 2021 07:15 Pouebo New Caledonia  0.1
10 Apr 2021 12:15 Bouloupari New Caledonia  0.1
10 Apr 2021 04:15 Woolgoolga Australia  0.1
10 Apr 2021 04:15 Coffs Harbour Australia  0.1
10 Apr 2021 04:15 Kororo Basin Australia  0.1
10 Apr 2021 04:15 Moonee Beach Australia  0.1
11 Apr 2021 08:30 Duranbah Australia  0.1
11 Apr 2021 08:30 Sleepy Hollow Australia  0.1
11 Apr 2021 08:30 Warwick Park Australia  0.1
11 Apr 2021 08:30 Round Mountain Australia  0.1
11 Apr 2021 08:30 Lower Cudgera Australia  0.1
10 Apr 2021 21:30 Bribie View Australia  0.1
10 Apr 2021 21:30 Donnybrook Australia  0.1
10 Apr 2021 21:30 Toorbul Australia  0.1
10 Apr 2021 21:30 Bribie Australia  0.1
10 Apr 2021 21:30 Caloundra Australia  0.1
10 Apr 2021 21:30 Bellara Australia  0.1
10 Apr 2021 21:30 Bongaree Australia  0.1
10 Apr 2021 21:30 Woorim Australia  0.1
10 Apr 2021 13:00 Mouly New Caledonia  0.1
10 Apr 2021 13:00 Lekia New Caledonia  0.1
10 Apr 2021 13:00 Fayaoue New Caledonia  0.1
10 Apr 2021 13:00 Wadrilla New Caledonia  0.1
10 Apr 2021 13:00 Ognahu New Caledonia  0.1
10 Apr 2021 13:00 Wegnec St-Joseph New Caledonia  0.1
10 Apr 2021 13:00 Ognat New Caledonia  0.1
11 Apr 2021 05:45 Tin Can Bay Australia  0.1
13 Apr 2021 00:30 Canala New Caledonia  0.1
10 Apr 2021 07:00 Ouenguip New Caledonia  0.1
10 Apr 2021 16:15 Ngoye New Caledonia  0.1
10 Apr 2021 16:15 Petit-Borindi New Caledonia  0.1
13 Apr 2021 22:30 Solevu Fiji  0.1
13 Apr 2021 22:30 Momi Fiji  0.1
13 Apr 2021 22:30 Lomawal Fiji  0.1
13 Apr 2021 22:30 Nadi Fiji  0.1
13 Apr 2021 05:00 Namaka Fiji  0.1
10 Apr 2021 12:30 Nessadiou New Caledonia  0.1
10 Apr 2021 13:30 Evans Head Australia  0.1
10 Apr 2021 13:30 Broadwater Australia  0.1
10 Apr 2021 13:30 Wardell Australia  0.1
10 Apr 2021 13:30 Empire Vale Australia  0.1
10 Apr 2021 08:30 Amity Point Australia  0.1
13 Apr 2021 02:30 Tavua Fiji  0.1
10 Apr 2021 08:30 Point Lookout Australia  0.1
12 Apr 2021 20:15 Ouinne New Caledonia  0.1
10 Apr 2021 07:45 Yambe New Caledonia  0.1
10 Apr 2021 07:45 Diahoue New Caledonia  0.1
10 Apr 2021 07:45 Colnett New Caledonia  0.1
12 Apr 2021 16:45 Yerou Vanuatu  0.1
12 Apr 2021 16:45 Imareukak Vanuatu  0.1
12 Apr 2021 16:45 Yokopenan Vanuatu  0.1
12 Apr 2021 23:00 Soso Fiji  0.1
12 Apr 2021 23:00 Somosomo Fiji  0.1
12 Apr 2021 23:00 Matayalevu Fiji  0.1
12 Apr 2021 23:00 Matacawalevu Fiji  0.1
12 Apr 2021 23:00 Sisili Fiji  0.1
10 Apr 2021 07:00 Panie New Caledonia  0.1
10 Apr 2021 06:30 Sandon Bluffs Australia  0.1
12 Apr 2021 08:15 Teouta New Caledonia  0.1
12 Apr 2021 23:45 Nalauwaki Fiji  0.1
10 Apr 2021 03:45 Kaala-Gomen New Caledonia  0.1
10 Apr 2021 03:45 Ouaco New Caledonia  0.1
11 Apr 2021 09:45 Mullumbimby Australia  0.1
11 Apr 2021 09:45 Yelgun Australia  0.1
11 Apr 2021 09:45 Billinudgel Australia  0.1
11 Apr 2021 09:45 Brunswick Heads Australia  0.1
11 Apr 2021 09:45 Brunswick Australia  0.1
11 Apr 2021 09:45 New Brighton Australia  0.1
10 Apr 2021 06:15 Yamba Australia  0.1
12 Apr 2021 05:30 Port-Havannah Vanuatu  0.1
12 Apr 2021 05:30 Sounai Vanuatu  0.1
12 Apr 2021 05:30 Utanlangi Vanuatu  0.1
12 Apr 2021 05:30 Nekapa Vanuatu  0.1
12 Apr 2021 05:30 Emua Vanuatu  0.1
12 Apr 2021 05:30 Laonomoa Vanuatu  0.1
12 Apr 2021 05:30 Onesoua Vanuatu  0.1
12 Apr 2021 05:30 Marow Vanuatu  0.1
12 Apr 2021 05:30 Ebao Vanuatu  0.1
10 Apr 2021 09:30 Coolum Australia  0.1
10 Apr 2021 09:30 Maroochydore Australia  0.1
10 Apr 2021 09:30 Coolum Beach Australia  0.1
10 Apr 2021 09:30 Mooloolaba Australia  0.1
10 Apr 2021 04:15 Harwood Australia  0.1
10 Apr 2021 04:15 Chatsworth Island Australia  0.1
10 Apr 2021 04:15 Chatsworth Australia  0.1
10 Apr 2021 04:15 Woombah Australia  0.1
10 Apr 2021 04:15 Palmers Island Australia  0.1
10 Apr 2021 04:15 Iluka Australia  0.1
12 Apr 2021 22:15 Nacula Fiji  0.1
12 Apr 2021 22:15 Navotua Fiji  0.1
12 Apr 2021 22:15 Tamusua Fiji  0.1
12 Apr 2021 22:15 Teci Fiji  0.1
12 Apr 2021 22:15 Mbukama Fiji  0.1
11 Apr 2021 05:15 Tewantin Australia  0.1
11 Apr 2021 05:15 Noosaville Australia  0.1
11 Apr 2021 05:15 Noosa Heads Australia  0.1
10 Apr 2021 12:15 Gouaro New Caledonia  0.1
10 Apr 2021 12:15 Bourail New Caledonia  0.1
12 Apr 2021 22:30 Wowo Vanuatu  0.1
12 Apr 2021 22:30 Asavagas Vanuatu  0.1
12 Apr 2021 22:30 Laruru Vanuatu  0.1
12 Apr 2021 22:30 Vao Vanuatu  0.1