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

08 Feb 2024 12 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	HWRF
Exposed countries	French Polynesia, Cook Islands
Exposed population	No people in Category 1 or higher
Maximum wind speed	97 km/h
Maximum storm surge	0.5 m (10 Feb 00:30 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
HWRF Current	97 km/h	0.5 m	929 mm	0.5
HWRF Overall	97 km/h	0.5 m	929 mm	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)

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Wind

97 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 08 Feb 2024 12:00 UTC (Overall situation)

Category	Country	Population
Tropical Storm	French Polynesia, Cook Islands	333	+
	French Polynesia	257
	Cook Islands	76

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 18:00	0	-	-	-	-	-	-	-
2	07 Feb 2024 00:00	90	-	-	-	-	-	-	-
3	07 Feb 2024 06:00	97	-	-	-	-	-	-	-
4	07 Feb 2024 12:00	90	-	-	-	-	-	-	-
5	07 Feb 2024 18:00	83	-	-	-	-	-	-	-
6	08 Feb 2024 00:00	79	-		-	-	-	-	-	Cook Islands
7	08 Feb 2024 06:00	65	-		-	-	-	-	-	Cook Islands
8	08 Feb 2024 12:00	97	-		-	-	-	-	-	French Polynesia, Cook Islands

Download:

Impact estimation for the next 72h

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Rainfall

Rain exposed population - AoIs

Estimations based on the bulletin of 08 Feb 2024 12:00 UTC (Overall situation)

Level	Country	Population
100-250 mm	Cook Islands	2,497
50-100 mm	Cook Islands	504

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	0	-	-	-	-	-	-	-
2	07 Feb 2024 00:00	234	-	-	-	-	-	-	-
3	07 Feb 2024 06:00	145	-	-	-	-	-	-	-
4	07 Feb 2024 12:00	172	-	-	-	-	-	-	-
5	07 Feb 2024 18:00	205	Few people			-	-	-	-	Cook Islands
6	08 Feb 2024 00:00	191	-	-	-	-	-	-	-
7	08 Feb 2024 06:00	150	-	-	-	-	-	-	-
8	08 Feb 2024 12:00	929	2 thousand			-	-	-	-	Cook Islands

Impact estimation for the next 72h

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StormSurge

0.5 m

The maximum Storm surge height is 0.5m in Lautoka, Fiji. This height is estimated for 10 Feb 2024 00:30 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 08 Feb 2024 12:00 UTC (Overall situation)

Level	Country	Population
0.5 - 1.0 m	Fiji	276
0.25 - 0.5 m	Fiji	26,306

Storm Surge Exposed locations

Calculation based on the bulletin of 08 Feb 2024 12:00 UTC (Overall situation)

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	10 Feb 2024 00:30	Lautoka	Fiji	0.5
	10 Feb 2024 00:30	Nailanga	Fiji	0.5
	10 Feb 2024 00:30	Sorokoba	Fiji	0.5
	10 Feb 2024 00:30	Ba	Fiji	0.5
	09 Feb 2024 21:30	Korosi	Fiji	0.5
	09 Feb 2024 21:30	Korotasere	Fiji	0.5
	09 Feb 2024 21:30	Naweni	Fiji	0.5
	09 Feb 2024 21:30	Viani	Fiji	0.5
	09 Feb 2024 21:30	Ndrekeniwai	Fiji	0.5
	09 Feb 2024 21:30	Mbangasau	Fiji	0.5
	10 Feb 2024 06:45	Naindi	Fiji	0.5
	10 Feb 2024 06:45	Nakarambo	Fiji	0.5
	07 Feb 2024 09:00	Korovou	Fiji	0.5
	07 Feb 2024 09:00	Lodoni	Fiji	0.5
	07 Feb 2024 09:00	Lawaki	Fiji	0.5
	07 Feb 2024 09:00	Naingani	Fiji	0.5
	07 Feb 2024 09:00	Navuti	Fiji	0.5
	07 Feb 2024 09:00	Nasaga	Fiji	0.5
	07 Feb 2024 09:00	Rukuruku	Fiji	0.5
	07 Feb 2024 09:00	Lovoni	Fiji	0.5
	07 Feb 2024 09:00	Ucunivanua	Fiji	0.5
	07 Feb 2024 17:15	Natua	Fiji	0.5
	07 Feb 2024 17:15	Mbangata	Fiji	0.5
	07 Feb 2024 17:15	Savusavu	Fiji	0.5
	07 Feb 2024 17:45	Natunuka	Fiji	0.5
	07 Feb 2024 17:45	Tavua	Fiji	0.5
	07 Feb 2024 17:45	Rabulu	Fiji	0.5
	07 Feb 2024 17:45	Togowere	Fiji	0.5
	07 Feb 2024 07:45	Lao	Fiji	0.5
	07 Feb 2024 07:45	Nailou	Fiji	0.5
	07 Feb 2024 07:45	Nawi	Fiji	0.5
	07 Feb 2024 07:45	Vunikura	Fiji	0.5
	07 Feb 2024 07:45	Napuka	Fiji	0.5
	10 Feb 2024 12:00	Malake	Fiji	0.5
	10 Feb 2024 12:00	Biagunu	Fiji	0.5
	07 Feb 2024 09:00	Nauouo	Fiji	0.4
	07 Feb 2024 09:00	Levuka	Fiji	0.4
	08 Feb 2024 05:00	Koroinasolo	Fiji	0.4
	08 Feb 2024 05:00	Savu Sau	Fiji	0.4
	08 Feb 2024 05:00	Navinggiri	Fiji	0.4
	08 Feb 2024 05:00	Yangganga	Fiji	0.4
	08 Feb 2024 05:00	Nawailevu	Fiji	0.4
	10 Feb 2024 09:00	Galoa	Fiji	0.4
	10 Feb 2024 09:00	Yanutha	Fiji	0.4
	10 Feb 2024 09:00	Matavuralevu	Fiji	0.4
	10 Feb 2024 09:00	Pacific Harbour	Fiji	0.4
	10 Feb 2024 09:00	Waisomo	Fiji	0.4
	10 Feb 2024 09:00	Dakuimbeqa	Fiji	0.4
	10 Feb 2024 09:00	Lalati	Fiji	0.4
	10 Feb 2024 09:00	Navua	Fiji	0.4
	10 Feb 2024 09:00	Naitionitoni	Fiji	0.4
	10 Feb 2024 09:00	Mau	Fiji	0.4
	10 Feb 2024 09:00	Ndawara	Fiji	0.3
	10 Feb 2024 09:00	Waisa	Fiji	0.3
	08 Feb 2024 01:45	Nanduri	Fiji	0.3
	08 Feb 2024 01:45	Vatutandova	Fiji	0.3
	08 Feb 2024 01:45	Nasea	Fiji	0.3
	10 Feb 2024 06:45	Namboutini	Fiji	0.3
	10 Feb 2024 10:00	Vunisea	Fiji	0.3
	10 Feb 2024 10:00	Mburelevu	Fiji	0.3
	10 Feb 2024 10:00	Mokoisa	Fiji	0.3
	10 Feb 2024 10:00	Naikorokoro	Fiji	0.3
	10 Feb 2024 10:00	Namara	Fiji	0.3
	10 Feb 2024 10:00	Gasele	Fiji	0.3
	10 Feb 2024 10:00	Soso	Fiji	0.3
	10 Feb 2024 10:00	Kavala	Fiji	0.3
	10 Feb 2024 10:00	Kaduvu	Fiji	0.3
	07 Feb 2024 09:00	Naimasimasi	Fiji	0.3
	08 Feb 2024 05:15	Nasarowangga	Fiji	0.3
	08 Feb 2024 01:15	Rakiraki	Fiji	0.3
	08 Feb 2024 01:15	Vaileka	Fiji	0.3
	08 Feb 2024 01:15	Nanukuloa	Fiji	0.3
	08 Feb 2024 01:15	Nasau	Fiji	0.3
	09 Feb 2024 19:15	Nayavutoka	Fiji	0.3
	07 Feb 2024 17:30	Kasavu	Fiji	0.3
	07 Feb 2024 17:30	Nausori	Fiji	0.3
	07 Feb 2024 17:30	Lokia	Fiji	0.3
	07 Feb 2024 17:30	Cautata	Fiji	0.3
	07 Feb 2024 17:30	Nasilai	Fiji	0.3
	07 Feb 2024 17:30	Dromuna	Fiji	0.3
	10 Feb 2024 16:00	Nabouwalu	Fiji	0.3
	10 Feb 2024 16:00	Thavanga	Fiji	0.3
	10 Feb 2024 16:00	Ndaria	Fiji	0.3
	10 Feb 2024 16:00	Rave-rave	Fiji	0.3
	08 Feb 2024 05:00	Navindamu	Fiji	0.3
	08 Feb 2024 05:00	Nagumu	Fiji	0.3
	08 Feb 2024 09:00	Vunivatu	Fiji	0.3
	08 Feb 2024 09:00	Navukembuli	Fiji	0.3
	08 Feb 2024 09:00	Naua	Fiji	0.3
	10 Feb 2024 00:00	Nukuvou	Fiji	0.3
	10 Feb 2024 00:00	Nabouwalu	Fiji	0.3
	10 Feb 2024 00:00	Vabea	Fiji	0.3
	08 Feb 2024 18:15	Soso	Fiji	0.3
	08 Feb 2024 18:15	Somosomo	Fiji	0.3
	08 Feb 2024 18:15	Matayalevu	Fiji	0.3
	08 Feb 2024 18:15	Matacawalevu	Fiji	0.3
	08 Feb 2024 18:15	Sisili	Fiji	0.3
	07 Feb 2024 13:00	Namaka	Fiji	0.3
	08 Feb 2024 22:00	Nasau	Fiji	0.3
	08 Feb 2024 22:00	Talaulia	Fiji	0.3
	08 Feb 2024 22:00	Nalotu	Fiji	0.3
	08 Feb 2024 18:45	Solevu	Fiji	0.3
	10 Feb 2024 00:15	Nalauwaki	Fiji	0.2
	08 Feb 2024 02:30	Vangai	Fiji	0.2
	07 Feb 2024 17:30	Nakondu	Fiji	0.2
	07 Feb 2024 17:30	Nathamaki	Fiji	0.2
	07 Feb 2024 17:30	Nasau	Fiji	0.2
	08 Feb 2024 22:45	Tavua	Fiji	0.2
	08 Feb 2024 22:15	Nadi	Fiji	0.2
	11 Feb 2024 09:00	Namukalau	Fiji	0.2
	09 Feb 2024 14:45	Ndenimanu	Fiji	0.2
	08 Feb 2024 01:15	Nacula	Fiji	0.2
	08 Feb 2024 01:15	Navotua	Fiji	0.2
	08 Feb 2024 01:15	Tamusua	Fiji	0.2
	08 Feb 2024 01:15	Teci	Fiji	0.2
	10 Feb 2024 10:00	Korovisilou	Fiji	0.2
	07 Feb 2024 17:15	Ndalomo	Fiji	0.2
	11 Feb 2024 06:45	Tawake	Fiji	0.2
	10 Feb 2024 09:45	Vione	Fiji	0.2
	10 Feb 2024 09:45	Dalice	Fiji	0.2
	10 Feb 2024 09:45	Naruwai	Fiji	0.2
	08 Feb 2024 04:45	Mbukama	Fiji	0.2
	08 Feb 2024 04:45	Yasawairara	Fiji	0.2
	10 Feb 2024 11:15	Nukusa	Fiji	0.2
	07 Feb 2024 03:15	Makongai	Fiji	0.2
	07 Feb 2024 17:45	Korovou	Fiji	0.2
	09 Feb 2024 19:30	Sawaieke	Fiji	0.2
	09 Feb 2024 20:15	Nambouono	Fiji	0.2
	11 Feb 2024 06:30	Keteira	Fiji	0.2
	07 Feb 2024 16:45	Momi	Fiji	0.2
	07 Feb 2024 17:45	Navakawau	Fiji	0.2
	11 Feb 2024 06:30	Vandravandra	Fiji	0.2
	11 Feb 2024 06:30	Suva	Fiji	0.2
	11 Feb 2024 06:30	Tamavua	Fiji	0.2
	11 Feb 2024 06:30	Lauthala Bay	Fiji	0.2
	11 Feb 2024 06:30	Laucala	Fiji	0.2
	11 Feb 2024 06:30	Andako	Fiji	0.2
	11 Feb 2024 06:30	Kalokolevu	Fiji	0.2
	10 Feb 2024 09:00	Bouwanga	Fiji	0.1
	10 Feb 2024 09:00	Taunovo	Fiji	0.1
	07 Feb 2024 15:00	Tonga	Tuvalu	0.1
	09 Feb 2024 20:00	Cuvu	Fiji	0.1
	09 Feb 2024 20:00	Sigatoka	Fiji	0.1
	09 Feb 2024 20:00	Laselase	Fiji	0.1
	09 Feb 2024 20:00	Vatukarasa	Fiji	0.1
	09 Feb 2024 20:00	Korolevu	Fiji	0.1
	07 Feb 2024 15:00	Lakina	Tuvalu	0.1
	09 Feb 2024 20:00	Mbatiri	Fiji	0.1
	07 Feb 2024 15:15	Elsee	Fiji	0.1
	07 Feb 2024 15:15	Sumi	Fiji	0.1
	09 Feb 2024 20:00	Lomawal	Fiji	0.1
	07 Feb 2024 05:30	Roreti	Kiribati	0.1
	07 Feb 2024 15:15	Vaitupu	Tuvalu	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.