Overall Green Tropical Cyclone alert for OSAI-24 in Cook Islands from 06 Feb 2024 18:00 UTC to 08 Feb 2024 12:00 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve alerts, information exchange and coordination in the first phase after major sudden-onset disasters.

Overall Green alert Tropical Cyclone for OSAI-24

in Cook Islands

09 Feb 2024 00 UTC

click on

to select bulletin time

Meteorological source:

GDACS JTWC

Impact Single TC

GFS
HWRF
ECMWF

Impact based on all weather systems in the area

Impact

Tropical Cyclone OSAI-24 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source	ECMWF
Exposed countries	French Polynesia
Exposed population	No people in Category 1 or higher
Maximum wind speed	72 km/h
Maximum storm surge	0.6 m (11 Feb 13:45 UTC)
Vulnerability	Medium (Cook Is.)

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	72 km/h	0.6 m	1054 mm	0.5
ECMWF Overall	72 km/h	0.6 m	1054 mm	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)

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Wind

72 km/h

Up to 10 thousand can be affected by wind speeds of Tropical Storm strength or above

Wind exposed population - AoIs

Estimations based on the bulletin of 09 Feb 2024 00:00 UTC (Overall situation)

Category	Country	Population
Tropical Storm	French Polynesia	10,307

See TC classification SSHS

Wind Impact Timeline

people affected <=10000

10000< people affected <=100000

people affected >100000

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
1	06 Feb 2024 00:00	76	-	-	-	-	-	-	-
2	06 Feb 2024 12:00	86	-	-	-	-	-	-	-
3	07 Feb 2024 00:00	83	-	-	-	-	-	-	-
4	07 Feb 2024 12:00	79	-	-	-	-	-	-	-
5	08 Feb 2024 00:00	68	-	-	-	-	-	-	-
6	08 Feb 2024 12:00	58	-	-	-	-	-	-	-
7	09 Feb 2024 00:00	72	-		-	-	-	-	-	French Polynesia

Download:

Impact estimation for the next 72h

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Rainfall

Rain exposed population - AoIs

Estimations based on the bulletin of 09 Feb 2024 00:00 UTC (Overall situation)

Level	Country	Population
250-500 mm	Tokelau, American Samoa, French Polynesia	37,290	+
	Tokelau	478
	American Samoa	11
	French Polynesia	36,800
100-250 mm	Tuvalu, Tokelau, Cook Islands, Fiji, Wallis and Futuna, Samoa, American Samoa, French Polynesia	185,827	+
	Tuvalu	8,933
	Tokelau	706
	Cook Islands	3,273
	American Samoa	1,089
	Fiji	138,612
	Wallis and Futuna	13,150
	Samoa	17,636
	French Polynesia	2,425
50-100 mm	Tuvalu, Samoa, American Samoa, Tonga, Fiji, Cook Islands	844,361	+
	Tuvalu	982
	Cook Islands	27
	American Samoa	54,436
	Fiji	731,661
	Samoa	56,196
	Tonga	1,056

Rain Impact Timeline

people affected <=10000

10000< people affected <=100000

people affected >100000

N°	Date (UTC)	Max Rainfall (mm)	Pop >100mm or higher	50-100	100-250	250-500	500-750	750-1000	>1000	Countries
1	06 Feb 2024 00:00	161	-		-	-	-	-	-	Tokelau
2	06 Feb 2024 12:00	310	-	-	-	-	-	-	-
3	07 Feb 2024 00:00	164	-	-	-	-	-	-	-
4	07 Feb 2024 12:00	181	-		-	-	-	-	-	Tokelau, Fiji, Cook Islands
5	08 Feb 2024 00:00	185	-		-	-	-	-	-	Fiji
6	08 Feb 2024 12:00	313	-	-	-	-	-	-	-
7	09 Feb 2024 00:00	986	50 thousand				-	-	-	Tuvalu, Tokelau, Cook Islands, American Samoa, Fiji, Wallis and Futuna, Samoa, Tonga, French Polynesia

Impact estimation for the next 72h

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StormSurge

0.6 m

The maximum Storm surge height is 0.6m in Korosi, Fiji. This height is estimated for 11 Feb 2024 13:45 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

Estimations based on the bulletin of 09 Feb 2024 00:00 UTC (Overall situation)

Level	Country	Population
0.5 - 1.0 m	Fiji	44
0.25 - 0.5 m	Fiji	25,908

Storm Surge Exposed locations

Calculation based on the bulletin of 09 Feb 2024 00:00 UTC (Overall situation)

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	11 Feb 2024 13:45	Korosi	Fiji	0.6
	11 Feb 2024 13:45	Korotasere	Fiji	0.6
	11 Feb 2024 13:45	Naweni	Fiji	0.6
	11 Feb 2024 13:45	Viani	Fiji	0.6
	11 Feb 2024 13:45	Ndrekeniwai	Fiji	0.6
	11 Feb 2024 13:45	Mbangasau	Fiji	0.6
	11 Feb 2024 13:45	Naindi	Fiji	0.6
	11 Feb 2024 13:45	Nakarambo	Fiji	0.6
	09 Feb 2024 17:15	Malake	Fiji	0.5
	09 Feb 2024 17:15	Biagunu	Fiji	0.5
	08 Feb 2024 03:30	Korovou	Fiji	0.5
	08 Feb 2024 03:30	Lodoni	Fiji	0.5
	08 Feb 2024 03:30	Lawaki	Fiji	0.5
	08 Feb 2024 03:30	Naingani	Fiji	0.5
	08 Feb 2024 03:30	Navuti	Fiji	0.5
	08 Feb 2024 03:30	Nasaga	Fiji	0.5
	08 Feb 2024 03:30	Rukuruku	Fiji	0.5
	08 Feb 2024 03:30	Lovoni	Fiji	0.5
	09 Feb 2024 07:00	Lao	Fiji	0.4
	09 Feb 2024 07:00	Nailou	Fiji	0.4
	09 Feb 2024 07:00	Nawi	Fiji	0.4
	08 Feb 2024 02:30	Koroinasolo	Fiji	0.4
	08 Feb 2024 02:30	Savu Sau	Fiji	0.4
	08 Feb 2024 02:30	Navinggiri	Fiji	0.4
	08 Feb 2024 02:30	Yangganga	Fiji	0.4
	08 Feb 2024 02:30	Nawailevu	Fiji	0.4
	06 Feb 2024 17:00	Lautoka	Fiji	0.4
	06 Feb 2024 17:00	Nailanga	Fiji	0.4
	06 Feb 2024 17:00	Sorokoba	Fiji	0.4
	06 Feb 2024 17:00	Ba	Fiji	0.4
	08 Feb 2024 03:30	Ucunivanua	Fiji	0.4
	11 Feb 2024 18:30	Vunikura	Fiji	0.4
	11 Feb 2024 18:30	Napuka	Fiji	0.4
	06 Feb 2024 17:00	Natunuka	Fiji	0.4
	06 Feb 2024 17:00	Tavua	Fiji	0.4
	06 Feb 2024 17:00	Rabulu	Fiji	0.4
	06 Feb 2024 17:00	Togowere	Fiji	0.4
	11 Feb 2024 16:00	Nayavutoka	Fiji	0.4
	09 Feb 2024 20:15	Nasarowangga	Fiji	0.4
	08 Feb 2024 09:30	Ndawara	Fiji	0.3
	08 Feb 2024 09:30	Waisa	Fiji	0.3
	08 Feb 2024 09:30	Natua	Fiji	0.3
	08 Feb 2024 09:30	Mbangata	Fiji	0.3
	08 Feb 2024 09:30	Savusavu	Fiji	0.3
	10 Feb 2024 06:45	Nauouo	Fiji	0.3
	10 Feb 2024 06:45	Levuka	Fiji	0.3
	10 Feb 2024 03:45	Gasele	Fiji	0.3
	10 Feb 2024 03:45	Soso	Fiji	0.3
	10 Feb 2024 03:45	Kavala	Fiji	0.3
	10 Feb 2024 03:45	Kaduvu	Fiji	0.3
	10 Feb 2024 03:45	Nukuvou	Fiji	0.3
	10 Feb 2024 03:45	Nabouwalu	Fiji	0.3
	10 Feb 2024 03:45	Vabea	Fiji	0.3
	11 Feb 2024 18:30	Namboutini	Fiji	0.3
	07 Feb 2024 03:15	Kasavu	Fiji	0.3
	07 Feb 2024 03:15	Nausori	Fiji	0.3
	07 Feb 2024 03:15	Lokia	Fiji	0.3
	07 Feb 2024 03:15	Naimasimasi	Fiji	0.3
	07 Feb 2024 03:15	Cautata	Fiji	0.3
	07 Feb 2024 03:15	Nasilai	Fiji	0.3
	07 Feb 2024 03:15	Dromuna	Fiji	0.3
	11 Feb 2024 16:45	Namaka	Fiji	0.3
	08 Feb 2024 09:15	Vangai	Fiji	0.3
	09 Feb 2024 06:00	Galoa	Fiji	0.3
	09 Feb 2024 06:00	Yanutha	Fiji	0.3
	09 Feb 2024 06:00	Matavuralevu	Fiji	0.3
	09 Feb 2024 06:00	Pacific Harbour	Fiji	0.3
	09 Feb 2024 06:00	Waisomo	Fiji	0.3
	09 Feb 2024 06:00	Dakuimbeqa	Fiji	0.3
	09 Feb 2024 06:00	Lalati	Fiji	0.3
	09 Feb 2024 06:00	Navua	Fiji	0.3
	09 Feb 2024 06:00	Naitionitoni	Fiji	0.3
	09 Feb 2024 06:00	Mau	Fiji	0.3
	11 Feb 2024 17:00	Nasau	Fiji	0.3
	11 Feb 2024 17:00	Talaulia	Fiji	0.3
	11 Feb 2024 17:00	Nalotu	Fiji	0.3
	11 Feb 2024 17:00	Vunisea	Fiji	0.3
	11 Feb 2024 17:00	Mburelevu	Fiji	0.3
	11 Feb 2024 17:00	Mokoisa	Fiji	0.3
	11 Feb 2024 17:00	Naikorokoro	Fiji	0.3
	11 Feb 2024 17:00	Namara	Fiji	0.3
	08 Feb 2024 20:00	Nacula	Fiji	0.3
	08 Feb 2024 20:00	Navotua	Fiji	0.3
	08 Feb 2024 20:00	Tamusua	Fiji	0.3
	08 Feb 2024 20:00	Teci	Fiji	0.3
	08 Feb 2024 20:00	Mbukama	Fiji	0.3
	08 Feb 2024 20:00	Yasawairara	Fiji	0.3
	11 Feb 2024 16:45	Ndaria	Fiji	0.3
	11 Feb 2024 16:45	Rave-rave	Fiji	0.3
	11 Feb 2024 16:45	Solevu	Fiji	0.3
	07 Feb 2024 04:00	Soso	Fiji	0.3
	07 Feb 2024 04:00	Somosomo	Fiji	0.3
	07 Feb 2024 04:00	Matayalevu	Fiji	0.3
	07 Feb 2024 04:00	Matacawalevu	Fiji	0.3
	07 Feb 2024 04:00	Sisili	Fiji	0.3
	08 Feb 2024 20:00	Nanduri	Fiji	0.3
	08 Feb 2024 20:00	Vatutandova	Fiji	0.3
	08 Feb 2024 20:00	Nasea	Fiji	0.3
	07 Feb 2024 05:00	Naua	Fiji	0.3
	07 Feb 2024 05:00	Tawake	Fiji	0.3
	11 Feb 2024 17:00	Nabouwalu	Fiji	0.3
	11 Feb 2024 17:00	Thavanga	Fiji	0.3
	10 Feb 2024 06:00	Rakiraki	Fiji	0.3
	10 Feb 2024 06:00	Vaileka	Fiji	0.3
	10 Feb 2024 06:00	Nanukuloa	Fiji	0.3
	10 Feb 2024 06:00	Nasau	Fiji	0.3
	08 Feb 2024 07:15	Vunivatu	Fiji	0.3
	08 Feb 2024 07:15	Navukembuli	Fiji	0.3
	08 Feb 2024 07:15	Namukalau	Fiji	0.3
	11 Feb 2024 16:45	Nalauwaki	Fiji	0.2
	09 Feb 2024 05:45	Ndenimanu	Fiji	0.2
	07 Feb 2024 04:15	Ndalomo	Fiji	0.2
	11 Feb 2024 17:00	Tavua	Fiji	0.2
	11 Feb 2024 07:15	Nakondu	Fiji	0.2
	11 Feb 2024 07:15	Nathamaki	Fiji	0.2
	11 Feb 2024 07:15	Nasau	Fiji	0.2
	07 Feb 2024 05:15	Navindamu	Fiji	0.2
	07 Feb 2024 05:15	Nagumu	Fiji	0.2
	11 Feb 2024 07:15	Naruwai	Fiji	0.2
	09 Feb 2024 05:45	Vione	Fiji	0.2
	09 Feb 2024 05:45	Dalice	Fiji	0.2
	07 Feb 2024 22:00	Korovisilou	Fiji	0.2
	08 Feb 2024 19:15	Sawaieke	Fiji	0.2
	10 Feb 2024 06:30	Makongai	Fiji	0.2
	08 Feb 2024 19:15	Nukusa	Fiji	0.2
	08 Feb 2024 19:15	Korovou	Fiji	0.2
	07 Feb 2024 22:00	Nadi	Fiji	0.2
	08 Feb 2024 19:15	Nambouono	Fiji	0.2
	07 Feb 2024 22:00	Momi	Fiji	0.2
	11 Feb 2024 16:45	Vandravandra	Fiji	0.2
	08 Feb 2024 19:15	Navakawau	Fiji	0.2
	07 Feb 2024 13:30	Keteira	Fiji	0.2
	11 Feb 2024 16:45	Lomawal	Fiji	0.2
	08 Feb 2024 19:00	Laucala	Fiji	0.2
	11 Feb 2024 17:15	Korolevu	Fiji	0.2
	08 Feb 2024 19:00	Kalokolevu	Fiji	0.1
	07 Feb 2024 22:00	Suva	Fiji	0.1
	07 Feb 2024 22:00	Tamavua	Fiji	0.1
	07 Feb 2024 22:00	Lauthala Bay	Fiji	0.1
	11 Feb 2024 17:15	Vatukarasa	Fiji	0.1
	07 Feb 2024 21:45	Bouwanga	Fiji	0.1
	07 Feb 2024 21:45	Taunovo	Fiji	0.1
	07 Feb 2024 21:45	Cuvu	Fiji	0.1
	07 Feb 2024 21:45	Sigatoka	Fiji	0.1
	07 Feb 2024 21:45	Laselase	Fiji	0.1
	06 Feb 2024 15:15	Lakina	Tuvalu	0.1
	11 Feb 2024 16:45	Andako	Fiji	0.1
	07 Feb 2024 21:45	Mbatiri	Fiji	0.1
	06 Feb 2024 15:15	Roreti	Kiribati	0.1
	06 Feb 2024 15:15	Tonga	Tuvalu	0.1
	06 Feb 2024 15:15	Vaitupu	Tuvalu	0.1
	06 Feb 2024 15:15	Elsee	Fiji	0.1
	06 Feb 2024 15:30	Sumi	Fiji	0.1

Disclaimer
While we try everything to ensure accuracy, this information is purely indicative and should not be used for any decision making without alternate sources of information.
The JRC is not responsible for any damage or loss resulting from the use of the information presented on this website.
The designations employed and the presentation of material on the map do not imply the expression of any opinion whatsoever on the part of the European Union concerning the legal status of any country, territory or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.