Overall Green Tropical Cyclone alert for RUBY-21 in New Caledonia from 11 Dec 2021 18:00 UTC to 14 Dec 2021 18:00 UTC

14 Dec 2021 18 UTC

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Meteorological source:

GDACS JTWC

Impact Single TC

GFS
HWRF
ECMWF

Impact based on all weather systems in the area

Impact

Tropical Cyclone RUBY-21 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source	GDACS
Exposed countries	New Caledonia
Exposed population	Few people in Category 1 or higher
Maximum wind speed	130 km/h
Maximum storm surge	0.6 m (13 Dec 20:00 UTC)
Vulnerability	Medium (New Caledonia)
Landfall	between 13 Dec 2021 12:00 - 13 Dec 2021 18:00 in 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
Current	83 km/h	0.2 m	n.a.	0.5
Overall	130 km/h	0.6 m	n.a.	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track) based on GDACS impact

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Wind

83 km/h Current Max.

Up to 280000 people in Tropical Storm strength or higher (see SSHS)

Impact Timeline

N°	Date (UTC)	Max Winds (km/h)	Population in Tropical Storm or higher	Population in Cat 1. or higher	Countries
1	11 Dec 2021 18:00	139	310 thousand	20 thousand	New Caledonia
2	12 Dec 2021 00:00	148	280 thousand	40 thousand	New Caledonia
3	12 Dec 2021 06:00	157	280 thousand	10 thousand	New Caledonia
4	12 Dec 2021 12:00	157	280 thousand	20 thousand	New Caledonia
5	12 Dec 2021 18:00	157	280 thousand	9 thousand	New Caledonia
6	13 Dec 2021 00:00	148	300 thousand	20 thousand	New Caledonia
7	13 Dec 2021 06:00	139	280 thousand	10 thousand	New Caledonia
8	13 Dec 2021 12:00	130	280 thousand	10 thousand	New Caledonia
9	13 Dec 2021 18:00	111	280 thousand	Few people	New Caledonia
10	14 Dec 2021 00:00	102	280 thousand	Few people	New Caledonia
11	14 Dec 2021 06:00	93	280 thousand	Few people	New Caledonia
12	14 Dec 2021 12:00	83	280 thousand	Few people	New Caledonia
13	14 Dec 2021 18:00	83	280 thousand	Few people	New Caledonia

Bulletin Timeline

N°	Date (UTC)	Category (SSHS)	Max winds (km/h)	Population in Cat.1 or higher	Population in Tropical Storm or higher	Location (lat, lon)	Countries
1	11 Dec 2021 18:00	Tropical storm	65	no people	no people	-12.8, 156.9
2	12 Dec 2021 00:00	Tropical storm	65	no people	no people	-14.1, 157.1
3	12 Dec 2021 06:00	Tropical storm	83	no people	no people	-14.8, 157.7
4	12 Dec 2021 12:00	Tropical storm	93	no people	no people	-15.8, 158.2
5	12 Dec 2021 18:00	Category 1	120	no people	no people	-16.4, 158.8
6	13 Dec 2021 00:00	Category 1	130	no people	no people	-17, 159.7
7	13 Dec 2021 06:00	Category 1	120	<1000 people	26000 people	-18.1, 161
8	13 Dec 2021 12:00	Category 1	120	9300 people	99000 people	-19.2, 162.3
9	13 Dec 2021 18:00	Tropical storm	111	no people	280000 people	-20.1, 163.8	New Caledonia
10	14 Dec 2021 00:00	Tropical storm	102	no people	270000 people	-21.2, 165.5	New Caledonia
11	14 Dec 2021 06:00	Tropical storm	83	no people	27000 people	-22, 167.4
12	14 Dec 2021 12:00	Tropical storm	83	no people	8000 people	-23.3, 169
13	14 Dec 2021 18:00	Tropical storm	83	no people	no people	-24.3, 170.5
13	15 Dec 2021 06:00	Tropical storm	83	no people	no people	-27.8, 174.5

Actual track of the current bulletin

The alert for forecast greater than 3 days is limited to Orange level.

Download:

Exposed population - AoIs

Exposed population in the potential affected countries, provinces and populated places

Countries

Country
New Caledonia

Provinces

Region Province	Country
New Caledonia	New Caledonia

Populated places

Name	Region Province	Country	City class	Population
Nouméa		New Caledonia	Capital	83000 people
Comm. du Mont-Dore		New Caledonia	City	-

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Airports

Name	IATA Code	Elevation (m)	Usage	Runway type	IFR	Runway Length (ft)
Ile Des Pins Moue	ILP	96	Civ.	Paved	No	3600
Mare la Roche	MEE	43	Civ.	Paved	No	3200
Ile Ouen	IOU	unknown				0
Noumea / Magenta	GEA	3	Civ.	Paved	Yes	4100
La Tontouta	NOU	16	Civ.	Paved	Yes	10600
Wanaham	LIF	28	Civ.	Paved	No	3600
Ouvea Ouloup	UVE	7	Civ.	Paved	No	3600
Houailou / Nesson	HLU	3	Civ.	Paved	No	3200
Mueo	PDC	unknown				0
Touho	TOU	3	Civ.	Paved	No	3600
Kone	KNQ	7	Civ.	Paved	No	3200
Hienghene	HNG	unknown				0
Koumac	KOC	13	Civ.	Paved	No	3600
Poum	PUV	unknown				0
Belep	BMY	unknown				0

Ports

Name	LOCODE	Country
Kuto		New Caledonia
Tadine		New Caledonia
Noumea	NCNOU	New Caledonia
Ducos	NCDUS	New Caledonia
We		New Caledonia
Thialis	NCTHI	New Caledonia
Kouaoua	NCKOU	New Caledonia
Baie de Poro	NCPOR	New Caledonia
Baie Ugue	NCBUG	New Caledonia
Nepoui	NCNEP	New Caledonia
Babouillat		New Caledonia

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Rainfall

Rainfall accumulation of the past 24h, as detected by the Global Precipitation Measurement mission of NASA. For more information, see https://www.nasa.gov/mission_pages/GPM/main/index.html.

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StormSurge

0.6 m

The maximum Storm surge height is 0.6m in Arama, New Caledonia. This height is estimated for 13 Dec 2021 20:00 UTC .

The JRC has developed an experimental global storm surge model. 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.

Locations affected by Storm surge (80 locations). Calculation based on advisory number 13 of 14 Dec 2021 18:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	13 Dec 2021 20:00	Arama	New Caledonia	0.6
	13 Dec 2021 19:00	Tiabet	New Caledonia	0.6
	13 Dec 2021 19:00	Poum-Plage	New Caledonia	0.6
	13 Dec 2021 19:00	Poum	New Caledonia	0.5
	13 Dec 2021 19:00	Pam	New Caledonia	0.5
	13 Dec 2021 22:00	Ouaco	New Caledonia	0.4
	13 Dec 2021 20:00	Paagoumene	New Caledonia	0.4
	13 Dec 2021 17:00	Wala	New Caledonia	0.4
	13 Dec 2021 18:00	Houone	New Caledonia	0.4
	13 Dec 2021 17:00	Ono	New Caledonia	0.4
	14 Dec 2021 00:00	Houailou	New Caledonia	0.3
	13 Dec 2021 22:00	Kaala-Gomen	New Caledonia	0.3
	14 Dec 2021 00:00	Meomo	New Caledonia	0.3
	13 Dec 2021 17:00	Pairome	New Caledonia	0.3
	13 Dec 2021 20:00	Yambe	New Caledonia	0.3
	13 Dec 2021 17:00	Bweo	New Caledonia	0.3
	13 Dec 2021 17:00	Mouane	New Caledonia	0.3
	14 Dec 2021 00:00	Poro	New Caledonia	0.3
	13 Dec 2021 16:00	Panane	New Caledonia	0.3
	13 Dec 2021 23:00	Ponerihouen	New Caledonia	0.3
	13 Dec 2021 20:00	Pouebo	New Caledonia	0.2
	13 Dec 2021 23:00	Touho	New Caledonia	0.2
	13 Dec 2021 23:00	Ometteux	New Caledonia	0.2
	13 Dec 2021 23:00	Mou	New Caledonia	0.2
	13 Dec 2021 22:00	Vieux Tuho	New Caledonia	0.2
	13 Dec 2021 23:00	Oundjo	New Caledonia	0.2
	14 Dec 2021 03:00	Petit-Borindi	New Caledonia	0.2
	13 Dec 2021 23:00	Poindimie	New Caledonia	0.2
	13 Dec 2021 23:00	Bayes	New Caledonia	0.2
	14 Dec 2021 09:00	Gadji	New Caledonia	0.2
	14 Dec 2021 09:00	Wapan	New Caledonia	0.2
	13 Dec 2021 22:00	Ouanache	New Caledonia	0.2
	14 Dec 2021 03:00	Saint-Gabriel	New Caledonia	0.2
	13 Dec 2021 21:00	Colnett	New Caledonia	0.2
	13 Dec 2021 22:00	Ouanpoues	New Caledonia	0.2
	14 Dec 2021 05:00	Prony	New Caledonia	0.2
	13 Dec 2021 21:00	Panie	New Caledonia	0.2
	13 Dec 2021 21:00	Ouenguip	New Caledonia	0.2
	13 Dec 2021 22:00	Paola	New Caledonia	0.2
	14 Dec 2021 01:00	Ouasse	New Caledonia	0.2
	14 Dec 2021 18:00	Tomo	New Caledonia	0.2
	14 Dec 2021 06:00	Dumbea	New Caledonia	0.2
	14 Dec 2021 06:00	Plum	New Caledonia	0.2
	13 Dec 2021 23:00	Saint-Denis	New Caledonia	0.2
	14 Dec 2021 00:00	Nepoui	New Caledonia	0.2
	14 Dec 2021 02:00	Fayaoue	New Caledonia	0.2
	14 Dec 2021 03:00	Wadrilla	New Caledonia	0.2
	14 Dec 2021 02:00	Ognahu	New Caledonia	0.2
	14 Dec 2021 02:00	Thio	New Caledonia	0.2
	13 Dec 2021 22:00	Hienghene	New Caledonia	0.1
	13 Dec 2021 22:00	Pindache	New Caledonia	0.1
	14 Dec 2021 01:00	Kouaoua	New Caledonia	0.1
	14 Dec 2021 05:00	Saint-Louis	New Caledonia	0.1
	14 Dec 2021 09:00	Kuto	New Caledonia	0.1
	14 Dec 2021 18:00	Bouloupari	New Caledonia	0.1
	12 Dec 2021 06:00	Hekampan	Papua New Guinea	0.1
	13 Dec 2021 22:00	Kokengone	New Caledonia	0.1
	14 Dec 2021 00:00	Ho	New Caledonia	0.1
	14 Dec 2021 05:00	Ouara	New Caledonia	0.1
	14 Dec 2021 08:00	Yate-Village	New Caledonia	0.1
	14 Dec 2021 02:00	Lekia	New Caledonia	0.1
	14 Dec 2021 05:00	Nde	New Caledonia	0.1
	14 Dec 2021 05:00	Paita	New Caledonia	0.1
	14 Dec 2021 09:00	Vao	New Caledonia	0.1
	14 Dec 2021 01:00	Station Ouaneko	New Caledonia	0.1
	13 Dec 2021 21:00	Saint-Paul	New Caledonia	0.1
	13 Dec 2021 22:00	Tipindje	New Caledonia	0.1
	14 Dec 2021 05:00	Nouville	New Caledonia	0.1
	14 Dec 2021 05:00	Noumea	New Caledonia	0.1
	14 Dec 2021 05:00	Comm. du Mont-Dore	New Caledonia	0.1
	14 Dec 2021 05:00	Waho	New Caledonia	0.1
	12 Dec 2021 07:00	Tagula	Papua New Guinea	0.1
	13 Dec 2021 20:00	Koumac	New Caledonia	0.1
	13 Dec 2021 20:00	Balaide	New Caledonia	0.1
	13 Dec 2021 20:00	Diahoue	New Caledonia	0.1
	14 Dec 2021 06:00	Goro	New Caledonia	0.1
	14 Dec 2021 05:00	Mamie	New Caledonia	0.1
	14 Dec 2021 07:00	Medu	New Caledonia	0.1
	14 Dec 2021 07:00	Eni	New Caledonia	0.1
	14 Dec 2021 02:00	Mouly	New Caledonia	0.1