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 06 UTC

click on

to select bulletin time

Meteorological source:

GDACS JTWC

Impact Single TC

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	GFS
Exposed countries
Exposed population	No people in Category 1 or higher
Maximum wind speed	112 km/h
Maximum storm surge	0.6 m (08 Feb 04:15 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
GFS Current	112 km/h	0.6 m	761 mm	0.5
GFS Overall	112 km/h	0.6 m	761 mm	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)

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Wind

112 km/h

No people by wind speeds of Tropical Storm strength or above

Wind exposed population - AoIs

Estimations based on the bulletin of 09 Feb 2024 06:00 UTC (Overall situation)

Category	Country	Population
Tropical Storm	American Samoa	00	+

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
1	06 Feb 2024 18:00	79	-	-	-	-	-	-	-
2	07 Feb 2024 00:00	79	-	-	-	-	-	-	-
3	07 Feb 2024 06:00	86	-	-	-	-	-	-	-
4	07 Feb 2024 12:00	112	-	-	-	-	-	-	-
5	07 Feb 2024 18:00	86	-	-	-	-	-	-	-
6	08 Feb 2024 00:00	76	-	-	-	-	-	-	-
7	08 Feb 2024 06:00	76	-	-	-	-	-	-	-
8	08 Feb 2024 12:00	58	-	-	-	-	-	-	-
9	08 Feb 2024 18:00	54	-	-	-	-	-	-	-
10	09 Feb 2024 00:00	50	-	-	-	-	-	-	-
11	09 Feb 2024 06:00	79	-	-	-	-	-	-	-

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 06:00 UTC (Overall situation)

Level	Country	Population
100-250 mm	Tuvalu, Tokelau, Cook Islands, American Samoa, Fiji, Wallis and Futuna, Tonga, French Polynesia	816,337	+
	Tuvalu	1,269
	Tokelau	1,250
	Cook Islands	2,957
	American Samoa	54,301
	Fiji	492,216
	Wallis and Futuna	13,150
	Samoa	193,227
	Tonga	1,056
	French Polynesia	56,907
50-100 mm	Tuvalu, Cook Islands, Fiji, American Samoa, French Polynesia	386,526	+
	Tuvalu	8,646
	Cook Islands	343
	American Samoa	1,236
	Fiji	375,033
	French Polynesia	1,266

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 18:00	111	-	-	-	-	-	-	-
2	07 Feb 2024 00:00	118	-	-	-	-	-	-	-
3	07 Feb 2024 06:00	181	-	-	-	-	-	-	-
4	07 Feb 2024 12:00	202	-	-	-	-	-	-	-
5	07 Feb 2024 18:00	155	-	-	-	-	-	-	-
6	08 Feb 2024 00:00	199	-	-	-	-	-	-	-
7	08 Feb 2024 06:00	93	-	-	-	-	-	-	-
8	08 Feb 2024 12:00	63	-	-	-	-	-	-	-
9	08 Feb 2024 18:00	104	-	-	-	-	-	-	-
10	09 Feb 2024 00:00	101	-	-	-	-	-	-	-
11	09 Feb 2024 06:00	712	210 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 08 Feb 2024 04:15 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

Estimations based on the bulletin of 09 Feb 2024 06:00 UTC (Overall situation)

Level	Country	Population
0.5 - 1.0 m	Fiji	51
0.25 - 0.5 m	Fiji	19,007

Storm Surge Exposed locations

Calculation based on the bulletin of 09 Feb 2024 06:00 UTC (Overall situation)

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	08 Feb 2024 04:15	Korosi	Fiji	0.6
	08 Feb 2024 04:15	Korotasere	Fiji	0.6
	08 Feb 2024 04:15	Naweni	Fiji	0.6
	08 Feb 2024 04:15	Viani	Fiji	0.6
	08 Feb 2024 04:15	Ndrekeniwai	Fiji	0.6
	08 Feb 2024 04:15	Mbangasau	Fiji	0.6
	08 Feb 2024 04:15	Naindi	Fiji	0.6
	08 Feb 2024 04:15	Nakarambo	Fiji	0.6
	09 Feb 2024 18:15	Lautoka	Fiji	0.5
	09 Feb 2024 18:15	Nailanga	Fiji	0.5
	09 Feb 2024 18:15	Sorokoba	Fiji	0.5
	09 Feb 2024 18:15	Ba	Fiji	0.5
	07 Feb 2024 21:00	Lao	Fiji	0.5
	07 Feb 2024 21:00	Nailou	Fiji	0.5
	07 Feb 2024 21:00	Nawi	Fiji	0.5
	07 Feb 2024 21:00	Vunikura	Fiji	0.5
	07 Feb 2024 21:00	Napuka	Fiji	0.5
	08 Feb 2024 09:15	Malake	Fiji	0.5
	08 Feb 2024 09:15	Biagunu	Fiji	0.5
	07 Feb 2024 03:00	Korovou	Fiji	0.4
	07 Feb 2024 03:00	Lodoni	Fiji	0.4
	07 Feb 2024 03:00	Lawaki	Fiji	0.4
	07 Feb 2024 03:00	Ucunivanua	Fiji	0.4
	07 Feb 2024 03:00	Naingani	Fiji	0.4
	07 Feb 2024 03:00	Navuti	Fiji	0.4
	07 Feb 2024 03:00	Nasaga	Fiji	0.4
	07 Feb 2024 03:00	Rukuruku	Fiji	0.4
	07 Feb 2024 03:00	Lovoni	Fiji	0.4
	07 Feb 2024 11:15	Natua	Fiji	0.4
	07 Feb 2024 11:15	Mbangata	Fiji	0.4
	07 Feb 2024 11:15	Savusavu	Fiji	0.4
	09 Feb 2024 18:15	Natunuka	Fiji	0.4
	09 Feb 2024 18:15	Tavua	Fiji	0.4
	08 Feb 2024 12:00	Rabulu	Fiji	0.4
	08 Feb 2024 12:00	Togowere	Fiji	0.4
	10 Feb 2024 03:30	Gasele	Fiji	0.4
	10 Feb 2024 03:30	Soso	Fiji	0.4
	10 Feb 2024 03:30	Kavala	Fiji	0.4
	10 Feb 2024 03:30	Kaduvu	Fiji	0.4
	10 Feb 2024 03:30	Nukuvou	Fiji	0.4
	10 Feb 2024 03:30	Nabouwalu	Fiji	0.4
	10 Feb 2024 03:30	Vabea	Fiji	0.4
	07 Feb 2024 19:30	Nanduri	Fiji	0.4
	07 Feb 2024 19:30	Vatutandova	Fiji	0.4
	07 Feb 2024 19:30	Nasea	Fiji	0.4
	12 Feb 2024 05:45	Koroinasolo	Fiji	0.4
	12 Feb 2024 05:45	Savu Sau	Fiji	0.4
	12 Feb 2024 05:45	Navinggiri	Fiji	0.4
	12 Feb 2024 05:45	Yangganga	Fiji	0.4
	12 Feb 2024 05:45	Nawailevu	Fiji	0.4
	07 Feb 2024 08:00	Namboutini	Fiji	0.3
	07 Feb 2024 06:30	Rakiraki	Fiji	0.3
	07 Feb 2024 06:30	Vaileka	Fiji	0.3
	07 Feb 2024 06:30	Nanukuloa	Fiji	0.3
	07 Feb 2024 06:30	Nasau	Fiji	0.3
	07 Feb 2024 16:30	Nayavutoka	Fiji	0.3
	07 Feb 2024 03:00	Nauouo	Fiji	0.3
	07 Feb 2024 03:00	Levuka	Fiji	0.3
	12 Feb 2024 05:45	Nasarowangga	Fiji	0.3
	11 Feb 2024 04:45	Ndawara	Fiji	0.3
	11 Feb 2024 04:45	Waisa	Fiji	0.3
	07 Feb 2024 07:30	Nabouwalu	Fiji	0.3
	07 Feb 2024 07:30	Thavanga	Fiji	0.3
	07 Feb 2024 07:30	Ndaria	Fiji	0.3
	07 Feb 2024 07:30	Rave-rave	Fiji	0.3
	12 Feb 2024 01:00	Kasavu	Fiji	0.3
	12 Feb 2024 01:00	Nausori	Fiji	0.3
	12 Feb 2024 01:00	Lokia	Fiji	0.3
	12 Feb 2024 01:00	Naimasimasi	Fiji	0.3
	12 Feb 2024 01:00	Cautata	Fiji	0.3
	12 Feb 2024 01:00	Nasilai	Fiji	0.3
	12 Feb 2024 01:00	Dromuna	Fiji	0.3
	07 Feb 2024 07:30	Namaka	Fiji	0.3
	08 Feb 2024 20:30	Soso	Fiji	0.3
	08 Feb 2024 20:30	Somosomo	Fiji	0.3
	08 Feb 2024 20:30	Matayalevu	Fiji	0.3
	08 Feb 2024 20:30	Matacawalevu	Fiji	0.3
	08 Feb 2024 20:30	Sisili	Fiji	0.3
	07 Feb 2024 08:00	Naua	Fiji	0.3
	07 Feb 2024 08:00	Tawake	Fiji	0.3
	07 Feb 2024 07:15	Tavua	Fiji	0.3
	07 Feb 2024 07:15	Nalauwaki	Fiji	0.3
	07 Feb 2024 07:00	Solevu	Fiji	0.2
	08 Feb 2024 08:30	Galoa	Fiji	0.2
	08 Feb 2024 08:30	Yanutha	Fiji	0.2
	08 Feb 2024 08:30	Matavuralevu	Fiji	0.2
	08 Feb 2024 08:30	Pacific Harbour	Fiji	0.2
	08 Feb 2024 08:30	Waisomo	Fiji	0.2
	08 Feb 2024 08:30	Dakuimbeqa	Fiji	0.2
	08 Feb 2024 08:30	Lalati	Fiji	0.2
	08 Feb 2024 08:30	Navua	Fiji	0.2
	08 Feb 2024 08:30	Naitionitoni	Fiji	0.2
	08 Feb 2024 08:30	Mau	Fiji	0.2
	09 Feb 2024 07:45	Nakondu	Fiji	0.2
	09 Feb 2024 07:45	Nathamaki	Fiji	0.2
	09 Feb 2024 07:45	Nasau	Fiji	0.2
	07 Feb 2024 23:15	Navindamu	Fiji	0.2
	07 Feb 2024 23:15	Nagumu	Fiji	0.2
	11 Feb 2024 11:45	Vunivatu	Fiji	0.2
	11 Feb 2024 11:45	Navukembuli	Fiji	0.2
	11 Feb 2024 11:45	Namukalau	Fiji	0.2
	07 Feb 2024 07:45	Nukusa	Fiji	0.2
	07 Feb 2024 07:00	Nadi	Fiji	0.2
	07 Feb 2024 05:45	Vangai	Fiji	0.2
	07 Feb 2024 19:15	Nacula	Fiji	0.2
	07 Feb 2024 19:15	Navotua	Fiji	0.2
	07 Feb 2024 19:15	Tamusua	Fiji	0.2
	07 Feb 2024 19:15	Teci	Fiji	0.2
	11 Feb 2024 14:45	Nasau	Fiji	0.2
	11 Feb 2024 14:45	Talaulia	Fiji	0.2
	11 Feb 2024 14:45	Nalotu	Fiji	0.2
	11 Feb 2024 14:45	Vunisea	Fiji	0.2
	11 Feb 2024 14:45	Mburelevu	Fiji	0.2
	11 Feb 2024 14:45	Mokoisa	Fiji	0.2
	11 Feb 2024 14:45	Naikorokoro	Fiji	0.2
	11 Feb 2024 14:45	Namara	Fiji	0.2
	11 Feb 2024 14:45	Keteira	Fiji	0.2
	08 Feb 2024 20:45	Mbukama	Fiji	0.2
	08 Feb 2024 20:45	Yasawairara	Fiji	0.2
	07 Feb 2024 06:30	Ndenimanu	Fiji	0.2
	07 Feb 2024 06:30	Ndalomo	Fiji	0.2
	07 Feb 2024 06:15	Naruwai	Fiji	0.2
	11 Feb 2024 05:30	Momi	Fiji	0.2
	07 Feb 2024 07:45	Nambouono	Fiji	0.2
	06 Feb 2024 21:30	Korovou	Fiji	0.2
	07 Feb 2024 07:00	Vione	Fiji	0.2
	07 Feb 2024 07:00	Dalice	Fiji	0.2
	06 Feb 2024 21:30	Navakawau	Fiji	0.2
	06 Feb 2024 21:30	Makongai	Fiji	0.2
	11 Feb 2024 14:45	Korovisilou	Fiji	0.2
	11 Feb 2024 15:30	Sawaieke	Fiji	0.2
	11 Feb 2024 03:15	Roreti	Kiribati	0.2
	11 Feb 2024 03:15	Lakina	Tuvalu	0.2
	11 Feb 2024 03:30	Elsee	Fiji	0.2
	11 Feb 2024 03:30	Sumi	Fiji	0.2
	11 Feb 2024 03:15	Tonga	Tuvalu	0.2
	06 Feb 2024 21:15	Vandravandra	Fiji	0.1
	06 Feb 2024 21:15	Kalokolevu	Fiji	0.1
	07 Feb 2024 06:45	Suva	Fiji	0.1
	07 Feb 2024 06:45	Tamavua	Fiji	0.1
	07 Feb 2024 06:45	Lauthala Bay	Fiji	0.1
	07 Feb 2024 06:45	Laucala	Fiji	0.1
	07 Feb 2024 07:00	Andako	Fiji	0.1
	11 Feb 2024 03:15	Vaitupu	Tuvalu	0.1
	11 Feb 2024 14:45	Vatukarasa	Fiji	0.1
	11 Feb 2024 14:45	Korolevu	Fiji	0.1
	07 Feb 2024 18:45	Lomawal	Fiji	0.1
	11 Feb 2024 14:45	Cuvu	Fiji	0.1
	11 Feb 2024 14:45	Sigatoka	Fiji	0.1
	11 Feb 2024 14:45	Laselase	Fiji	0.1
	11 Feb 2024 14:45	Mbatiri	Fiji	0.1
	11 Feb 2024 14:45	Bouwanga	Fiji	0.1
	11 Feb 2024 14:45	Taunovo	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.