Overall Green Tropical Cyclone alert for GABRIELLE-23 in Norfolk Island, New Caledonia from 08 Feb 2023 00:00 UTC to 10 Feb 2023 18:00 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 GABRIELLE-23

in Norfolk Island, New Caledonia

08 Feb 2023 12 UTC

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to select bulletin time

Meteorological source:

GDACS JTWC

Impact Single TC

Impact based on all weather systems in the area

Impact

Tropical Cyclone GABRIELLE-23 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source	GFS
Exposed countries	New Caledonia, Norfolk Island, New Zealand
Exposed population	No people in Category 1 or higher
Maximum wind speed	104 km/h
Maximum storm surge	0.7 m (11 Feb 07:00 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	104 km/h	n.a.	153 mm	0.5
GFS Overall	140 km/h	n.a.	501 mm	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)

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Wind

140 km/h

Up to 9 thousand can be affected by wind speeds of Tropical Storm strength or above

Wind exposed population - AoIs

Estimations based on the bulletin of 08 Feb 2023 12:00 UTC

Category	Country	Population
Tropical Storm	New Caledonia, Norfolk Island, New Zealand	8,609	+
	New Caledonia	6,148
	Norfolk Island	2,448
	New Zealand	13

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	08 Feb 2023 00:00	83	-	-	-	-	-	-	-
2	08 Feb 2023 06:00	97	-	-	-	-	-	-	-
3	08 Feb 2023 12:00	137	-		-	-	-	-	-	New Caledonia, Norfolk Island, New Zealand

Download:

Impact estimation for the next 72h

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Rainfall

Rain exposed population - AoIs

Estimations based on the bulletin of 08 Feb 2023 12:00 UTC

Level	Country	Population
500-750 mm	Papua New Guinea	5,342
250-500 mm	Papua New Guinea	61,950
100-250 mm	Papua New Guinea, Australia, New Caledonia	792,729	+
	Papua New Guinea	743,144
	Australia	45,194
	New Caledonia	4,389
50-100 mm	Papua New Guinea, Australia, Vanuatu, New Caledonia, Fiji, Norfolk Island	2,356,834	+
	Papua New Guinea	1,858,055
	Australia	208,544
	Vanuatu	31,231
	New Caledonia	256,127
	Fiji	426
	Norfolk Island	2,448

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	08 Feb 2023 00:00	174	-	-	-	-	-	-	-
2	08 Feb 2023 06:00	103	-		-	-	-	-	-	Papua New Guinea
3	08 Feb 2023 12:00	786	860 thousand					-	-	Papua New Guinea, Australia, Vanuatu, New Caledonia, Fiji, Norfolk Island

Impact estimation for the next 72h

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StormSurge

The calculations have been performed using NAMIDANCE computer code, from Middle East Technical University.
reference: Zaytsev, Andrey; Kurkin, Andrey; Pelinovsky, Efim; Yalciner, Ahmet C. - NUMERICAL TSUNAMI MODEL NAMI-DANCE. - Science of Tsunami Hazards . Nov2019, Vol. 38 Issue 4, p151-168. 18p.
Doaj

0.2 m

The maximum Storm surge height is 0.2m in Marlborough, South Island Whakatahuri, New Zealand. This height is estimated for 11/02/2023 00:00 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 08 Feb 2023 12:00 UTC

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	11/02/2023 00:00	Marlborough, South Island Whakatahuri	New Zealand	0.2
	10/02/2023 20:00	Western, Aibinio	Papua New Guinea	0.1
	10/02/2023 17:00	Western, Katatai	Papua New Guinea	0.1
	10/02/2023 23:00	Western, Dorogari	Papua New Guinea	0.1
	10/02/2023 21:00	Western, Aibinio Island Sepi	Papua New Guinea	0.1
	10/02/2023 22:00	Western, Daware	Papua New Guinea	0.1
	10/02/2023 08:00	Northland, North Island Ngataki	New Zealand	0.1
	10/02/2023 22:00	Western, Kaharaturi	Papua New Guinea	0.1
	10/02/2023 08:00	Northland, North Island Waihopo	New Zealand	0.1
	10/02/2023 07:00	Northland, North Island Motutangi	New Zealand	0.1
	10/02/2023 11:00	Northland, North Island Lake Ohia	New Zealand	0.1
	10/02/2023 11:00	Northland, North Island Ahipara	New Zealand	0.1
	10/02/2023 11:00	Northland, North Island Mitimiti	New Zealand	0.1
	10/02/2023 11:00	Northland, North Island Whangape	New Zealand	0.1
	10/02/2023 11:00	Northland, North Island Pawarenga	New Zealand	0.1
	10/02/2023 11:00	Northland, North Island Puhau	New Zealand	0.1
	10/02/2023 11:00	Northland, North Island Omapere	New Zealand	0.1
	10/02/2023 11:00	Northland, North Island Opononi	New Zealand	0.1
	08/02/2023 18:00	Gulf, Ekeirau	Papua New Guinea	0.1
	10/02/2023 11:00	Northland, North Island Parapara	New Zealand	0.1
	10/02/2023 11:00	Northland, North Island Glinks Gully	New Zealand	0.1
	10/02/2023 11:00	Northland, North Island Mangonui	New Zealand	0.1
	10/02/2023 11:00	Northland, North Island Matangirau	New Zealand	0.1
	08/02/2023 05:00	Gulf, Morigio I	Papua New Guinea	0.1
	10/02/2023 12:00	Northland, North Island Baylys Beach	New Zealand	0.1
	10/02/2023 11:00	Northland, North Island Redhill	New Zealand	0.1
	10/02/2023 11:00	Northland, North Island Te Mane	New Zealand	0.1
	08/02/2023 04:00	Gulf, Mira	Papua New Guinea	0.1
	10/02/2023 06:00	Northland, North Island Purerua	New Zealand	0.1
	10/02/2023 11:00	Northland, North Island Kerikeri	New Zealand	0.1
	08/02/2023 17:00	Gulf, Babai	Papua New Guinea	0.1
	10/02/2023 11:00	Northland, North Island Manawaora	New Zealand	0.1
	10/02/2023 12:00	Northland, North Island Paihia	New Zealand	0.1
	10/02/2023 12:00	Northland, North Island Opua	New Zealand	0.1
	10/02/2023 11:00	Northland, North Island Kerikeri Inlet	New Zealand	0.1
	10/02/2023 12:00	Northland, North Island Haruru	New Zealand	0.1
	10/02/2023 12:00	Northland, North Island Karetu	New Zealand	0.1
	10/02/2023 12:00	Northland, North Island Taumarere	New Zealand	0.1
	10/02/2023 11:00	Northland, North Island Waikare	New Zealand	0.1
	10/02/2023 11:00	Northland, North Island Waihaha	New Zealand	0.1
	08/02/2023 18:00	Gulf, Namaituri	Papua New Guinea	0.1
	10/02/2023 20:00	Auckland, Waiheke Island Omiha	New Zealand	0.1
	10/02/2023 23:00	New South Wales, Tea Gardens	Australia	0.1
	10/02/2023 23:00	New South Wales, Winda Woppa	Australia	0.1
	10/02/2023 22:00	New South Wales, Banksmeadow	Australia	0.1
	10/02/2023 22:00	New South Wales, Matraville	Australia	0.1
	11/02/2023 00:00	New South Wales, Tomago	Australia	0.1
	10/02/2023 21:00	New South Wales, Kogarah	Australia	0.1
	10/02/2023 21:00	New South Wales, Rockdale	Australia	0.1
	10/02/2023 21:00	New South Wales, Brighton-Le-Sands	Australia	0.1
	10/02/2023 21:00	New South Wales, Botany	Australia	0.1
	10/02/2023 23:00	New South Wales, Pyree	Australia	0.1
	10/02/2023 22:00	New South Wales, Rosebery	Australia	0.1
	10/02/2023 22:00	New South Wales, Kensington	Australia	0.1
	10/02/2023 22:00	New South Wales, Daceyville	Australia	0.1
	10/02/2023 22:00	New South Wales, Leichhardt	Australia	0.1
	10/02/2023 22:00	New South Wales, Marrickville	Australia	0.1
	10/02/2023 22:00	New South Wales, Tempe	Australia	0.1
	10/02/2023 22:00	New South Wales, Annandale	Australia	0.1
	10/02/2023 22:00	New South Wales, Saint Peters	Australia	0.1
	10/02/2023 22:00	New South Wales, Mascot	Australia	0.1
	10/02/2023 23:00	New South Wales, Millers Forest	Australia	0.1
	10/02/2023 22:00	New South Wales, Strathfield	Australia	0.1
	10/02/2023 22:00	New South Wales, Burwood	Australia	0.1
	10/02/2023 22:00	New South Wales, Croydon	Australia	0.1
	10/02/2023 22:00	New South Wales, Ashfield	Australia	0.1
	10/02/2023 23:00	New South Wales, Beresfield	Australia	0.1
	10/02/2023 23:00	New South Wales, Tarro	Australia	0.1
	10/02/2023 21:00	New South Wales, Clyde	Australia	0.1
	10/02/2023 21:00	New South Wales, Rosehill	Australia	0.1
	10/02/2023 21:00	New South Wales, Auburn	Australia	0.1
	10/02/2023 21:00	New South Wales, Rydalmere	Australia	0.1
	10/02/2023 21:00	New South Wales, Lidcombe	Australia	0.1
	11/02/2023 00:00	New South Wales, Hexham	Australia	0.1
	10/02/2023 20:00	New South Wales, Mortdale	Australia	0.1
	10/02/2023 20:00	New South Wales, Oatley	Australia	0.1
	10/02/2023 20:00	New South Wales, Penshurst	Australia	0.1
	10/02/2023 20:00	New South Wales, Blakehurst	Australia	0.1
	10/02/2023 20:00	New South Wales, Bexley	Australia	0.1
	10/02/2023 22:00	New South Wales, Lane Cove	Australia	0.1
	10/02/2023 22:00	New South Wales, Woolwich	Australia	0.1
	10/02/2023 22:00	New South Wales, Balmain	Australia	0.1
	10/02/2023 22:00	New South Wales, Artarmon	Australia	0.1
	10/02/2023 22:00	New South Wales, Waverton	Australia	0.1
	10/02/2023 20:00	New South Wales, Revesby	Australia	0.1
	10/02/2023 20:00	New South Wales, Peakhurst	Australia	0.1
	10/02/2023 22:00	New South Wales, Homebush	Australia	0.1
	10/02/2023 22:00	New South Wales, Rhodes	Australia	0.1
	10/02/2023 22:00	New South Wales, Concord	Australia	0.1
	10/02/2023 22:00	New South Wales, Ryde	Australia	0.1
	10/02/2023 22:00	New South Wales, Mortlake	Australia	0.1
	10/02/2023 22:00	New South Wales, Abbotsford	Australia	0.1
	10/02/2023 22:00	New South Wales, Gladesville	Australia	0.1
	10/02/2023 22:00	New South Wales, North Sydney	Australia	0.1
	10/02/2023 22:00	New South Wales, Castlecrag	Australia	0.1
	10/02/2023 22:00	New South Wales, Kirribilli	Australia	0.1
	10/02/2023 23:00	New South Wales, Patonga Beach	Australia	0.1
	10/02/2023 23:00	New South Wales, Patonga	Australia	0.1
	10/02/2023 22:00	New South Wales, Forestville	Australia	0.1
	10/02/2023 23:00	New South Wales, Charlestown	Australia	0.1
	10/02/2023 22:00	New South Wales, Lindfield	Australia	0.1
	10/02/2023 22:00	New South Wales, Roseville	Australia	0.1
	10/02/2023 22:00	New South Wales, Chatswood	Australia	0.1
	11/02/2023 00:00	New South Wales, Woy Woy	Australia	0.1
	11/02/2023 00:00	New South Wales, Davistown	Australia	0.1
	11/02/2023 00:00	New South Wales, Empire Bay	Australia	0.1
	10/02/2023 22:00	New South Wales, Terrey Hills	Australia	0.1
	10/02/2023 23:00	New South Wales, Brooklyn	Australia	0.1
	10/02/2023 22:00	New South Wales, Eastwood	Australia	0.1
	10/02/2023 22:00	New South Wales, North Turramurra	Australia	0.1
	10/02/2023 22:00	New South Wales, Saint Ives	Australia	0.1
	10/02/2023 23:00	New South Wales, Teralba	Australia	0.1
	10/02/2023 23:00	New South Wales, Boolaroo	Australia	0.1
	10/02/2023 23:00	New South Wales, Cardiff	Australia	0.1
	10/02/2023 22:00	New South Wales, Berowra	Australia	0.1
	10/02/2023 22:00	New South Wales, Mount Colah	Australia	0.1
	10/02/2023 21:00	New South Wales, Como	Australia	0.1
	10/02/2023 21:00	New South Wales, Grays Point	Australia	0.1
	10/02/2023 23:00	New South Wales, Matcham	Australia	0.1
	10/02/2023 23:00	New South Wales, Berkeley Vale	Australia	0.1
	10/02/2023 23:00	New South Wales, Monkeyjacket	Australia	0.1
	10/02/2023 23:00	New South Wales, Mitchells Island	Australia	0.1
	10/02/2023 22:00	Victoria, Port Albert	Australia	0.1
	11/02/2023 00:00	New South Wales, Whoota	Australia	0.0
	10/02/2023 22:00	Queensland, North Stradbroke Island Dunwich	Australia	0.0
	10/02/2023 21:00	Queensland, North Stradbroke Island Wallen Wallen	Australia	0.0
	10/02/2023 21:00	Queensland, North Stradbroke Island Canalpin	Australia	0.0
	09/02/2023 00:00	Queensland, Bribie Island Bongaree	Australia	0.0
	10/02/2023 23:00	New South Wales, Pelican Island	Australia	0.0
	10/02/2023 23:00	New South Wales, Belmore River Upper	Australia	0.0
	10/02/2023 21:00	Queensland, Alberton	Australia	0.0
	10/02/2023 21:00	Queensland, Carbrook	Australia	0.0
	10/02/2023 21:00	Queensland, Gilberton	Australia	0.0
	10/02/2023 21:00	Queensland, Steiglitz	Australia	0.0
	10/02/2023 21:00	New South Wales, Palmers Island	Australia	0.0
	10/02/2023 23:00	New South Wales, Tyagarah	Australia	0.0
	10/02/2023 23:00	New South Wales, Ewingsdale	Australia	0.0
	10/02/2023 23:00	Queensland, Birkdale	Australia	0.0
	10/02/2023 21:00	New South Wales, Woombah	Australia	0.0
	10/02/2023 21:00	New South Wales, Harwood	Australia	0.0
	10/02/2023 22:00	New South Wales, Upper Corindi	Australia	0.0
	10/02/2023 21:00	New South Wales, Chatsworth Island	Australia	0.0
	10/02/2023 21:00	New South Wales, Chatsworth	Australia	0.0
	10/02/2023 23:00	Queensland, Capalaba	Australia	0.0
	10/02/2023 23:00	New South Wales, Stotts Creek	Australia	0.0
	10/02/2023 23:00	Queensland, Bribie View	Australia	0.0
	10/02/2023 23:00	Queensland, Donnybrook	Australia	0.0
	10/02/2023 23:00	Queensland, Toorbul	Australia	0.0
	10/02/2023 23:00	New South Wales, Tumbulgum	Australia	0.0

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.