Overall Green Tropical Cyclone alert for SEVENTEEN-23 Off-shore from 12 Nov 2023 12:00 UTC to 13 Nov 2023 06:00 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 SEVENTEEN-23

Off-shore

13 Nov 2023 06 UTC

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Meteorological source:

GDACS JTWC

Impact Single TC

Impact based on all weather systems in the area

Impact

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

Meteorological source	GDACS
Exposed countries
Exposed population	No people in Category 1 or higher
Maximum wind speed	46 km/h
Maximum storm surge	0.2 m (16 Nov 18:00 UTC)
Vulnerability	--
Landfall	between 17 Nov 2023 06:00 - 18 Nov 2023 06:00 in Philippines

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	74 km/h	0.2 m	n.a.	0.5
Overall	46 km/h	0.2 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

74 km/h Current Max.

Up to 4.2 million 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	12 Nov 2023 12:00	65	20 thousand	No people	Palau
2	12 Nov 2023 18:00	83	20 thousand	No people	Palau
3	13 Nov 2023 00:00	83	6.7 million	No people	Palau, Philippines
4	13 Nov 2023 06:00	74	4.2 million	No people	Philippines

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	12 Nov 2023 12:00	Tropical depression	46	no people	no people	7.2, 140
2	12 Nov 2023 18:00	Tropical depression	46	no people	no people	7.3, 139
3	13 Nov 2023 00:00	Tropical depression	46	no people	no people	7.1, 138.3
4	13 Nov 2023 06:00	Tropical depression	46	no people	no people	8.1, 139
4	13 Nov 2023 18:00	Tropical depression	46	no people	no people	7.8, 138.6
4	14 Nov 2023 06:00	Tropical depression	56	no people	no people	7.9, 138
4	14 Nov 2023 18:00	Tropical depression	56	no people	no people	8, 137.1
4	15 Nov 2023 06:00	Tropical depression	56	no people	<1000 people	8.2, 135.6
4	16 Nov 2023 06:00	Tropical storm	65	no people	no people	8.9, 132.6
4	17 Nov 2023 06:00	Tropical storm	74	no people	4.2 million people	10.1, 128.9
4	18 Nov 2023 06:00	Tropical storm	74	no people	no people	11.3, 125.7	Philippines

Actual track of the current bulletin

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

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Exposed population - AoIs

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

Countries

Country	Population in Tropical Storm or higher strength
Philippines	3.5 million people

Provinces

Region Province	Country	Population in Tropical Storm or higher strength
Northern Mindanao	Philippines	240000 people
Eastern Visayas	Philippines	3.2 million people

Populated places

Name	Region Province	Country	City class	Population
Guiuan	Eastern Visayas	Philippines	City	11000 people
Dulag	Eastern Visayas	Philippines	City	10000 people
Tanauan	Eastern Visayas	Philippines	City	16000 people
Palo	Eastern Visayas	Philippines	City	18000 people
Tacloban	Tacloban City	Philippines	City	190000 people
Burauen	Eastern Visayas	Philippines	City	14000 people
Babatñgon	Leyte	Philippines	City	-
Barugo	Leyte	Philippines	City	6500 people
Carigara	Leyte	Philippines	City	17000 people
Ormoc	Eastern Visayas	Philippines	City	91000 people
Calbayog	Eastern Visayas	Philippines	City	68000 people

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)
Siargao		3				0
Guiuan		2	Civ.	Paved	No	7000
Borongan		2				0
Dolores		2				0
Daniel Z Romualdez	TAC	2	Civ.	Paved	Yes	7000
Catbalogan		15				0
Ormoc	OMC	25	Civ.	Paved	No	3900
Philphos		5				0
Biliran Natl		89				0

Ports

Name	LOCODE	Country
Dapa		Philippines
Numancia		Philippines
Guiuan		Philippines
Gen Macarthur		Philippines
Borongan	PHBGV	Philippines
Lagome		Philippines
Liloan		Philippines
Malitbog		Philippines
Sogod		Philippines
Tanauan		Philippines
Tacloban	PHTAC	Philippines
Baybay		Philippines
Talalora		Philippines
Catbalogan	PHCTS	Philippines
Pilar		Philippines
Ormoc		Philippines
Merida		Philippines
Port Bello		Philippines
Isabel	PHISL	Philippines
Leyte		Philippines
Calbayog		Philippines
Palompon		Philippines
Villaba		Philippines
Calubian		Philippines
Arevalo		Philippines

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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

0.2 m

The maximum Storm surge height is 0.2m in Jaro, Philippines. This height is estimated for 16 Nov 2023 18:00 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 (54 locations). Calculation based on advisory number 2 of 12 Nov 2023 18:00:00 UTC. (Simulation using 6 minute resolution)

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	16 Nov 2023 18:00	Jaro	Philippines	0.2
	16 Nov 2023 18:00	Barcelona	Philippines	0.2
	16 Nov 2023 18:00	Avila	Philippines	0.2
	16 Nov 2023 18:00	Valencia	Philippines	0.2
	16 Nov 2023 18:00	Pulupandan	Philippines	0.2
	16 Nov 2023 18:00	Sum-ag	Philippines	0.2
	16 Nov 2023 18:00	Bacolod	Philippines	0.2
	16 Nov 2023 18:00	Talisay	Philippines	0.2
	16 Nov 2023 18:00	Silay	Philippines	0.2
	16 Nov 2023 18:00	Saravia	Philippines	0.2
	16 Nov 2023 18:00	Estado	Philippines	0.2
	16 Nov 2023 18:00	Anilao	Philippines	0.1
	16 Nov 2023 18:00	Talisay	Philippines	0.1
	16 Nov 2023 18:00	Victorias	Philippines	0.1
	15 Nov 2023 18:00	Konlei	Palau	0.1
	16 Nov 2023 18:00	Cadiz	Philippines	0.1
	16 Nov 2023 18:00	Sagay	Philippines	0.1
	16 Nov 2023 18:00	Toboso	Philippines	0.1
	16 Nov 2023 18:00	Vito	Philippines	0.1
	16 Nov 2023 18:00	Salamanca	Philippines	0.1
	16 Nov 2023 18:00	Escalante	Philippines	0.1
	16 Nov 2023 18:00	Bantayan	Philippines	0.1
	16 Nov 2023 18:00	Sillon	Philippines	0.1
	16 Nov 2023 18:00	Buenavista	Philippines	0.1
	16 Nov 2023 18:00	Tagana-an	Philippines	0.1
	16 Nov 2023 18:00	Placer	Philippines	0.1
	16 Nov 2023 18:00	Kinabutan	Philippines	0.1
	16 Nov 2023 18:00	Gigaquit	Philippines	0.1
	16 Nov 2023 18:00	Talavera	Philippines	0.1
	16 Nov 2023 18:00	Claver	Philippines	0.1
	16 Nov 2023 18:00	Urbistondo	Philippines	0.1
	16 Nov 2023 18:00	Taganito	Philippines	0.1
	16 Nov 2023 18:00	Adlay	Philippines	0.1
	16 Nov 2023 18:00	Pamosaingan	Philippines	0.1
	16 Nov 2023 18:00	Socorro	Philippines	0.1
	16 Nov 2023 18:00	Numancia	Philippines	0.1
	16 Nov 2023 18:00	Bais	Philippines	0.1
	16 Nov 2023 18:00	Ayungon	Philippines	0.1
	16 Nov 2023 18:00	Manjuyod	Philippines	0.1
	16 Nov 2023 18:00	Malatapay	Philippines	0.1
	16 Nov 2023 18:00	Tanjay	Philippines	0.1
	16 Nov 2023 18:00	Tayasan	Philippines	0.1
	16 Nov 2023 18:00	Jimalalud	Philippines	0.1
	16 Nov 2023 18:00	La Libertad	Philippines	0.1
	16 Nov 2023 18:00	San Jose	Philippines	0.1
	16 Nov 2023 18:00	Anao	Philippines	0.1
	16 Nov 2023 18:00	Santander	Philippines	0.1
	16 Nov 2023 18:00	Alegria	Philippines	0.1
	16 Nov 2023 18:00	Moalboal	Philippines	0.1
	16 Nov 2023 18:00	Alo	Philippines	0.1
	16 Nov 2023 18:00	Badian	Philippines	0.1
	16 Nov 2023 18:00	Ronda	Philippines	0.1
	16 Nov 2023 18:00	Dumanjug	Philippines	0.1
	16 Nov 2023 18:00	Boljoon	Philippines	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.