Overall Green Tropical Cyclone alert for ZELIA-25 in Australia from 11 Feb 2025 06:00 UTC to 12 Feb 2025 00:00 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve awareness, information exchange and coordination in the first phase after major sudden-onset disasters.

Overall Green alert Tropical Cyclone for ZELIA-25

in Australia

12 Feb 2025 00 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 ZELIA-25 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source	GDACS
Exposed countries	Australia
Exposed population	30 thousand in Category 1 or higher
Maximum wind speed	241 km/h
Maximum storm surge	1 m (11 Feb 14:00 UTC)
Vulnerability	Low (Australia)
Landfall	between 14 Feb 2025 00:00 - 15 Feb 2025 00:00 in Australia

GDACS Score

GDACS score for Tropical Cyclones is 0.5 (GREEN Level), 1.5 (ORANGE Level), 2.5 (RED Level)
For more info on GDACS core click here.

	Wind	Storm surge	Rainfall	GDACS score
Current	194 km/h	1.0 m	n.a.	0.5
Overall	241 km/h	1.0 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

194 km/h Current Max.

Up to 17000 people in Category 1 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 Feb 2025 06:00	148	20 thousand	Few people	Australia
2	11 Feb 2025 12:00	176	50 thousand	30 thousand	Australia
3	11 Feb 2025 18:00	176	80 thousand	20 thousand	Australia
4	12 Feb 2025 00:00	194	80 thousand	20 thousand	Australia

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 Feb 2025 06:00	Tropical storm	74	no people	no people	-16.9, 119.8
2	11 Feb 2025 12:00	Tropical storm	74	no people	no people	-17.9, 119.1
3	11 Feb 2025 18:00	Tropical storm	93	no people	21000 people	-18.5, 118.9
4	12 Feb 2025 00:00	Tropical storm	111	no people	50000 people	-19.1, 118.6
4	12 Feb 2025 12:00	Category 1	130	no people	56000 people	-19.7, 118.4
4	13 Feb 2025 00:00	Category 1	148	no people	57000 people	-19.8, 118.1
4	13 Feb 2025 12:00	Category 2	167	5200 people	59000 people	-20, 117.8
4	14 Feb 2025 00:00	Category 3	194	7300 people	77000 people	-20.4, 117.4
4	15 Feb 2025 00:00	Category 1	120	10000 people	77000 people	-21.8, 117.4	Australia
4	16 Feb 2025 00:00	Tropical storm	83	no people	1300 people	-25.3, 117.6	Australia
4	17 Feb 2025 00:00	Tropical depression	56	no people	no people	-27.4, 119.2	Australia

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	Population in Category 1 or higher strength
Australia	17000 people

Provinces

Region Province	Country	Population in Category 1 or higher strength
Western Australia	Australia	17000 people

Populated places

Name	Region Province	Country	City class	Population
Tom Price	Western Australia	Australia	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)
Roebourne	RBU	unknown				0
Coolawanyah	COY	unknown				0
Tom Price	TPR	unknown				0
Paraburdoo	PBO	429	Civ.	Paved	Yes	6900

Ports

Name	LOCODE	Country
Point Samson	AUPSM	Coral Sea Islands
Port Walcott	AUPWL	Coral Sea Islands
Roebourne	AURBU	Coral Sea Islands

Dams

Reservoir	Dam Name	River	Year
Poongkaliyarra	Harding	Harding	1985

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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

1 m

The maximum Storm surge height is 1.0m in Derby, Australia. This height is estimated for 11 Feb 2025 14:00 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 (19 locations). Calculation based on advisory number 4 of 12 Feb 2025 00:00:00 UTC. (Simulation using 0.5 minute resolution)

Level	Date (UTC)	Name	Country	Storm surge height (m)
	11 Feb 2025 14:00	Derby	Australia	1.0
	12 Feb 2025 10:00	Condon	Australia	1.0
	14 Feb 2025 04:00	Wickham	Australia	1.0
	14 Feb 2025 04:00	Point Samson	Australia	1.0
	14 Feb 2025 04:00	Cossack	Australia	1.0
	11 Feb 2025 12:00	Kollan I	Australia	0.5
	11 Feb 2025 13:00	Pender	Australia	0.4
	11 Feb 2025 16:00	Broome	Australia	0.4
	12 Feb 2025 01:00	Thangoo	Australia	0.3
	11 Feb 2025 16:00	Waterbank	Australia	0.3
	11 Feb 2025 16:00	Kennedys Cottage	Australia	0.3
	11 Feb 2025 14:00	Larrakeyah	Australia	0.2
	11 Feb 2025 14:00	Fannie Bay	Australia	0.2
	11 Feb 2025 14:00	Parap	Australia	0.2
	11 Feb 2025 14:00	Darwin	Australia	0.2
	11 Feb 2025 14:00	Ludmilla	Australia	0.2
	11 Feb 2025 14:00	Bagot	Australia	0.2
	11 Feb 2025 14:00	Nightcliff	Australia	0.2
	11 Feb 2025 16:00	Leanyer	Australia	0.2

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.