Overall Green Tropical Cyclone alert for DAHLIA-17 in Indonesia, Christmas Island from 30 Nov 2017 00:00 UTC to 03 Dec 2017 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 DAHLIA-17

in Indonesia, Christmas Island

Meteorological source:

GDACS JTWC

Impact Single TC

Impact based on all weather systems in the area

Impact

Tropical Cyclone DAHLIA-17 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	59 km/h
Maximum storm surge	0.3 m (03 Dec 18:00 UTC)
Vulnerability	-- (Indonesia)

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	59 km/h	0.3 m	n.a.	0.5
GFS Overall	56 km/h	0.6 m	n.a.	0.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)

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Wind

56 km/h

No people by wind speeds of Tropical Storm strength or above

Wind exposed population - AoIs

No exposed population (in Tropical Storm or higher) based on the bulletin of 03 Dec 2017 18:00 UTC

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	30 Nov 2017 00:00	67	-	-	-	-	-	-	-
2	30 Nov 2017 06:00	75	-	-	-	-	-	-	-
3	30 Nov 2017 12:00	65	-	-	-	-	-	-	-
4	30 Nov 2017 18:00	110	-	-	-	-	-	-	-
5	01 Dec 2017 00:00	137	-	-	-	-	-	-	-
6	01 Dec 2017 06:00	99	-	-	-	-	-	-	-
7	01 Dec 2017 12:00	104	-	-	-	-	-	-	-
8	01 Dec 2017 18:00	107	-	-	-	-	-	-	-
9	02 Dec 2017 00:00	114	-	-	-	-	-	-	-
10	02 Dec 2017 06:00	79	-	-	-	-	-	-	-
11	02 Dec 2017 12:00	76	-	-	-	-	-	-	-
12	02 Dec 2017 18:00	60	-	-	-	-	-	-	-
13	03 Dec 2017 00:00	57	-	-	-	-	-	-	-
14	03 Dec 2017 06:00	54	-	-	-	-	-	-	-
15	03 Dec 2017 12:00	56	-	-	-	-	-	-	-
16	03 Dec 2017 18:00	59	-	-	-	-	-	-	-

Download:

Impact estimation for the next 72h

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Rainfall

Rain exposed population - AoIs

No exposed population (greater than 50mm) based on the bulletin of 03 Dec 2017 18:00 UTC

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
1	30 Nov 2017 00:00	-	-	-	-	-	-	-	-
2	30 Nov 2017 06:00	-	-	-	-	-	-	-	-
3	30 Nov 2017 12:00	-	-	-	-	-	-	-	-
4	30 Nov 2017 18:00	-	-	-	-	-	-	-	-
5	01 Dec 2017 00:00	-	-	-	-	-	-	-	-
6	01 Dec 2017 06:00	-	-	-	-	-	-	-	-
7	01 Dec 2017 12:00	-	-	-	-	-	-	-	-
8	01 Dec 2017 18:00	-	-	-	-	-	-	-	-
9	02 Dec 2017 00:00	-	-	-	-	-	-	-	-
10	02 Dec 2017 06:00	-	-	-	-	-	-	-	-
11	02 Dec 2017 12:00	-	-	-	-	-	-	-	-
12	02 Dec 2017 18:00	-	-	-	-	-	-	-	-
13	03 Dec 2017 00:00	-	-	-	-	-	-	-	-
14	03 Dec 2017 06:00	-	-	-	-	-	-	-	-
15	03 Dec 2017 12:00	-	-	-	-	-	-	-	-
16	03 Dec 2017 18:00	-	-	-	-	-	-	-	-

Impact estimation for the next 72h

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StormSurge

0.3 m

The maximum Storm surge height is 0.3m in Dampier, Australia. This height is estimated for 03 Dec 2017 18:00 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 03 Dec 2017 18:00 UTC

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	03 Dec 2017 18:00	Dampier	Australia	0.3
	03 Dec 2017 18:00	Karratha	Australia	0.3
	05 Dec 2017 07:00	Pardoo	Australia	0.2
	03 Dec 2017 18:00	Port Hedland	Australia	0.2
	06 Dec 2017 02:15	Condon	Australia	0.2
	03 Dec 2017 18:00	Wickham	Australia	0.2
	03 Dec 2017 18:00	Point Samson	Australia	0.2
	03 Dec 2017 18:00	Cossack	Australia	0.2
	04 Dec 2017 23:00	Kualalupak	Indonesia	0.2
	03 Dec 2017 18:00	Pagatan	Indonesia	0.2
	04 Dec 2017 23:00	Pagetan	Indonesia	0.2
	04 Dec 2017 23:00	Tambakkarangan	Indonesia	0.2
	04 Dec 2017 23:00	Tabanio	Indonesia	0.2
	04 Dec 2017 23:00	Bawahalajung	Indonesia	0.2
	04 Dec 2017 03:30	East Lewis I	Australia	0.2
	04 Dec 2017 22:45	Batakam	Indonesia	0.1
	04 Dec 2017 22:45	Kandangan	Indonesia	0.1
	03 Dec 2017 18:30	Mardie	Australia	0.1
	04 Dec 2017 05:30	Kiluan	Indonesia	0.1
	04 Dec 2017 05:30	Kekatang	Indonesia	0.1
	04 Dec 2017 05:30	Menango	Indonesia	0.1
	04 Dec 2017 05:30	Telukbetung	Indonesia	0.1
	04 Dec 2017 05:30	Tarahan	Indonesia	0.1
	04 Dec 2017 23:30	Boenati	Indonesia	0.1
	04 Dec 2017 06:45	Maoe Ndai	Indonesia	0.1
	04 Dec 2017 06:45	Manoeran	Indonesia	0.1
	04 Dec 2017 06:45	Pigadjawa	Indonesia	0.1
	04 Dec 2017 06:45	Nangaboa	Indonesia	0.1
	04 Dec 2017 06:45	Waroe Kasoe	Indonesia	0.1
	04 Dec 2017 06:45	Wassa	Indonesia	0.1
	04 Dec 2017 04:15	Kencong	Indonesia	0.1
	04 Dec 2017 04:15	Lodjedjer	Indonesia	0.1
	04 Dec 2017 04:15	Batuulo	Indonesia	0.1
	04 Dec 2017 23:45	Semisir	Indonesia	0.1
	04 Dec 2017 23:45	Semaras	Indonesia	0.1
	04 Dec 2017 23:45	Tapianbalai	Indonesia	0.1
	04 Dec 2017 22:45	Sawarangan	Indonesia	0.1
	03 Dec 2017 23:00	Sembelimbingan	Indonesia	0.1
	03 Dec 2017 23:00	Berangas	Indonesia	0.1
	03 Dec 2017 23:00	Soengaibali	Indonesia	0.1
	03 Dec 2017 18:30	Brassan	Indonesia	0.1
	03 Dec 2017 18:30	Muntjar	Indonesia	0.1
	03 Dec 2017 18:30	Blimbing	Indonesia	0.1
	03 Dec 2017 18:30	Dadapan	Indonesia	0.1
	03 Dec 2017 18:30	Banyuwangi	Indonesia	0.1
	03 Dec 2017 18:30	Banjuwangi	Indonesia	0.1
	03 Dec 2017 18:30	Gilimanuk	Indonesia	0.1
	03 Dec 2017 18:30	Penginoeman	Indonesia	0.1
	03 Dec 2017 18:30	Belimbingsari	Indonesia	0.1
	03 Dec 2017 18:30	Tjandikesuma	Indonesia	0.1
	04 Dec 2017 05:30	Topoali	Indonesia	0.1
	03 Dec 2017 19:15	Taju	Indonesia	0.1
	03 Dec 2017 19:15	Bulumanis	Indonesia	0.1
	03 Dec 2017 19:15	Batangan	Indonesia	0.1
	04 Dec 2017 22:15	Sekapoeng	Indonesia	0.1
	04 Dec 2017 05:00	Banjoebiroe	Indonesia	0.1
	04 Dec 2017 05:00	Cupel	Indonesia	0.1
	04 Dec 2017 05:00	Prancak	Indonesia	0.1
	04 Dec 2017 05:00	Negara	Indonesia	0.1
	04 Dec 2017 05:15	Tandjungkarang	Indonesia	0.1
	03 Dec 2017 18:00	Segintong	Indonesia	0.1
	06 Dec 2017 08:30	Grajagan	Indonesia	0.1
	04 Dec 2017 21:45	Tungkaranasam	Indonesia	0.1
	04 Dec 2017 04:45	Banjuwedang	Indonesia	0.1
	03 Dec 2017 19:30	Karangsari	Indonesia	0.1
	03 Dec 2017 18:00	Gunung	Indonesia	0.1
	04 Dec 2017 22:15	Teloekkapalpetjah	Indonesia	0.1
	05 Dec 2017 11:00	Membalong	Indonesia	0.1
	05 Dec 2017 11:00	Djepuh	Indonesia	0.1
	05 Dec 2017 11:00	Tangjungrusa	Indonesia	0.1
	05 Dec 2017 11:45	Simnangpesa	Indonesia	0.1
	05 Dec 2017 11:45	Tandjungklumpang	Indonesia	0.1
	05 Dec 2017 11:45	Tandjungbatuaajer	Indonesia	0.1
	04 Dec 2017 21:15	Okaoka	Indonesia	0.1
	05 Dec 2017 03:15	Mutua	Indonesia	0.1
	03 Dec 2017 18:00	Tandjoengselaka	Indonesia	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.