Overall Green Tropical Cyclone alert for FABIO-18 Off-shore from 30 Jun 2018 21:00 UTC to 06 Jul 2018 12:00 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 FABIO-18

Off-shore

04 Jul 2018 12 UTC

click on

to select bulletin time

Meteorological source:

GDACS JTWC

Impact Single TC

Impact based on all weather systems in the area

Impact

Tropical Cyclone FABIO-18 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	145 km/h
Maximum storm surge	0.6 m (04 Jul 14:00 UTC)
Vulnerability	--

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	145 km/h	0.6 m	n.a.	0.5
GFS Overall	109 km/h	0.5 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

Wind exposed population - AoIs

No exposed population (in Tropical Storm or higher) based on the bulletin of 04 Jul 2018 12:00 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 Jun 2018 18:00	168	-	-	-	-	-	-	-
2	01 Jul 2018 00:00	158	-	-	-	-	-	-	-
3	01 Jul 2018 06:00	197	-	-	-	-	-	-	-
4	01 Jul 2018 12:00	210	-	-	-	-	-	-	-
5	01 Jul 2018 18:00	201	-	-	-	-	-	-	-
6	02 Jul 2018 00:00	170	-	-	-	-	-	-	-
7	02 Jul 2018 06:00	184	-	-	-	-	-	-	-
8	02 Jul 2018 12:00	63	-	-	-	-	-	-	-
9	02 Jul 2018 18:00	155	-	-	-	-	-	-	-
10	03 Jul 2018 00:00	64	-	-	-	-	-	-	-
11	03 Jul 2018 06:00	64	-	-	-	-	-	-	-
12	03 Jul 2018 12:00	61	-	-	-	-	-	-	-
13	03 Jul 2018 18:00	166	-	-	-	-	-	-	-
14	04 Jul 2018 00:00	61	-	-	-	-	-	-	-
15	04 Jul 2018 06:00	143	-	-	-	-	-	-	-
16	04 Jul 2018 12:00	145	-	-	-	-	-	-	-

Download:

Impact estimation for the next 72h

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Rainfall

-1 mm

No people can be affected rain lower than 100mm

Rain exposed population - AoIs

No exposed population (greater than 50mm) based on the bulletin of 04 Jul 2018 12:00 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 Jun 2018 18:00	-	-	-	-	-	-	-	-
2	01 Jul 2018 00:00	-	-	-	-	-	-	-	-
3	01 Jul 2018 06:00	-	-	-	-	-	-	-	-
4	01 Jul 2018 12:00	-	-	-	-	-	-	-	-
5	01 Jul 2018 18:00	-	-	-	-	-	-	-	-
6	02 Jul 2018 00:00	-	-	-	-	-	-	-	-
7	02 Jul 2018 06:00	-	-	-	-	-	-	-	-
8	02 Jul 2018 12:00	-	-	-	-	-	-	-	-
9	02 Jul 2018 18:00	-	-	-	-	-	-	-	-
10	03 Jul 2018 00:00	-	-	-	-	-	-	-	-
11	03 Jul 2018 06:00	-	-	-	-	-	-	-	-
12	03 Jul 2018 12:00	-	-	-	-	-	-	-	-
13	03 Jul 2018 18:00	-	-	-	-	-	-	-	-
14	04 Jul 2018 00:00	-	-	-	-	-	-	-	-
15	04 Jul 2018 06:00	-	-	-	-	-	-	-	-
16	04 Jul 2018 12:00	-	-	-	-	-	-	-	-

Impact estimation for the next 72h

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StormSurge

0.6 m

The maximum Storm surge height is 0.6m in La Choya, Mexico. This height is estimated for 04 Jul 2018 14:00 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 04 Jul 2018 12:00 UTC

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	04 Jul 2018 14:00	La Choya	Mexico	0.6
	04 Jul 2018 14:00	Puerto Penasco	Mexico	0.6
	04 Jul 2018 14:30	El Golfo de Santa Clara	Mexico	0.5
	04 Jul 2018 14:30	El Tornillal	Mexico	0.5
	04 Jul 2018 14:15	San Felipe	Mexico	0.4
	04 Jul 2018 12:45	Rancho Bahia	Mexico	0.3
	04 Jul 2018 13:15	Puertecitos	Mexico	0.3
	04 Jul 2018 12:00	Puerto Libertad	Mexico	0.3
	04 Jul 2018 12:30	Molino	Mexico	0.3
	04 Jul 2018 12:30	Molino Lacy	Mexico	0.3
	04 Jul 2018 12:00	El Desemboque	Mexico	0.2
	04 Jul 2018 12:00	Cabo Tepoca	Mexico	0.2
	04 Jul 2018 18:45	San Cosme	Mexico	0.2
	04 Jul 2018 18:45	Santa Marta	Mexico	0.2
	06 Jul 2018 17:45	Guasimas	Mexico	0.2
	04 Jul 2018 12:00	Tecomate	Mexico	0.2
	06 Jul 2018 17:45	Empalme	Mexico	0.2
	07 Jul 2018 10:45	Los Burros	Mexico	0.2
	07 Jul 2018 01:45	La Paz	Mexico	0.2
	07 Jul 2018 01:45	Rosario	Mexico	0.2
	05 Jul 2018 04:45	Puerto Venustiano Carranza	Mexico	0.2
	07 Jul 2018 11:00	Guaymas	Mexico	0.2
	07 Jul 2018 01:45	Datilito	Mexico	0.2
	07 Jul 2018 11:00	San Rafael	Mexico	0.2
	04 Jul 2018 21:30	San Juanico	Mexico	0.2
	04 Jul 2018 21:30	Boca del Melgoita	Mexico	0.2
	04 Jul 2018 21:30	Buenaventura	Mexico	0.2
	07 Jul 2018 11:00	Tastiota	Mexico	0.2
	07 Jul 2018 11:00	Bahia Kino	Mexico	0.2
	07 Jul 2018 11:00	El Barril	Mexico	0.2
	07 Jul 2018 10:30	San Bruno	Mexico	0.2
	07 Jul 2018 11:00	Santa Rosalia	Mexico	0.2
	04 Jul 2018 12:00	Agua de las Flores	Mexico	0.2
	06 Jul 2018 09:30	Desembarcadero de Miller	Mexico	0.2
	07 Jul 2018 10:30	Mulege	Mexico	0.2
	07 Jul 2018 10:30	Los Dolores	Mexico	0.2
	04 Jul 2018 19:00	Loreto	Mexico	0.2
	04 Jul 2018 19:00	Ligui	Mexico	0.2
	04 Jul 2018 19:00	Tripui	Mexico	0.2
	07 Jul 2018 10:30	San Jose	Mexico	0.2
	07 Jul 2018 10:30	Atanacio	Mexico	0.2
	07 Jul 2018 10:30	El Paredoncito	Mexico	0.2
	07 Jul 2018 10:30	Borabampo	Mexico	0.2
	07 Jul 2018 10:30	San Carlos	Mexico	0.2
	07 Jul 2018 10:30	Las Bocas	Mexico	0.2
	07 Jul 2018 10:30	Camahuiroa	Mexico	0.2
	07 Jul 2018 10:30	San Bruno	Mexico	0.2
	07 Jul 2018 10:30	San Ignacio	Mexico	0.2
	06 Jul 2018 17:45	El Rosario	Mexico	0.2
	07 Jul 2018 10:30	Santa Rosalia	Mexico	0.2
	07 Jul 2018 10:30	San Juanico	Mexico	0.2
	07 Jul 2018 09:45	Topolobampo	Mexico	0.2
	07 Jul 2018 09:45	Cachoana	Mexico	0.2
	04 Jul 2018 21:30	Las Tinajas	Mexico	0.2
	04 Jul 2018 21:30	Santo Domingo	Mexico	0.2
	04 Jul 2018 21:30	Agua del Coyote	Mexico	0.2
	07 Jul 2018 10:30	Liliba	Mexico	0.2
	07 Jul 2018 10:30	El Aquajito	Mexico	0.2
	07 Jul 2018 11:15	Wilmington	United States	0.2
	07 Jul 2018 11:15	Signal Hill	United States	0.2
	07 Jul 2018 11:15	Belmont Shore	United States	0.2
	07 Jul 2018 11:15	Surfside	United States	0.2
	07 Jul 2018 11:15	Seal Beach	United States	0.2
	07 Jul 2018 11:15	Sunset Beach	United States	0.2
	07 Jul 2018 11:15	Huntington Beach	United States	0.2
	06 Jul 2018 18:15	Summerland	United States	0.2
	06 Jul 2018 18:15	Serena Park	United States	0.2
	06 Jul 2018 18:15	Franciscan Village	United States	0.2
	06 Jul 2018 18:15	Carpinteria	United States	0.2
	06 Jul 2018 18:15	Rincon	United States	0.2
	06 Jul 2018 18:15	Shepards	United States	0.2
	06 Jul 2018 18:15	Punta	United States	0.2
	06 Jul 2018 18:15	Faria	United States	0.2
	06 Jul 2018 18:15	Dulah	United States	0.2
	06 Jul 2018 16:45	Puerto Cortes	Mexico	0.2
	06 Jul 2018 16:45	El Guatamota	Mexico	0.2
	06 Jul 2018 16:45	Puerto Charley	Mexico	0.2
	06 Jul 2018 17:45	Santa Marie	Mexico	0.2
	06 Jul 2018 17:15	Cedros	Mexico	0.2
	07 Jul 2018 12:00	El Sauzal	Mexico	0.2
	07 Jul 2018 12:00	Cabo Punta Banda	Mexico	0.2
	07 Jul 2018 12:00	Ensenada	Mexico	0.2
	06 Jul 2018 01:30	Santa Cruz	Mexico	0.2
	06 Jul 2018 01:30	La Ventana	Mexico	0.2
	06 Jul 2018 01:30	Ensenada de los Muertos	Mexico	0.2
	07 Jul 2018 10:15	San Juan de la Costa	Mexico	0.2
	07 Jul 2018 10:15	Tambobiche	Mexico	0.2
	06 Jul 2018 18:15	Montecito	United States	0.2
	07 Jul 2018 01:45	Novillero	Mexico	0.2
	07 Jul 2018 01:45	Cuantla	Mexico	0.2
	04 Jul 2018 16:00	San Francisco	Mexico	0.2
	04 Jul 2018 16:00	Monteon	Mexico	0.2
	04 Jul 2018 16:00	La Lima	Mexico	0.2
	07 Jul 2018 01:30	Boca del Rio	Mexico	0.2
	07 Jul 2018 10:30	Coronado	United States	0.1
	07 Jul 2018 10:30	Imperial Beach	United States	0.1
	07 Jul 2018 10:30	Boal	United States	0.1
	07 Jul 2018 10:30	Rosarito	Mexico	0.1
	06 Jul 2018 00:45	Garrapateras	Mexico	0.1
	06 Jul 2018 00:45	Majada Villalobos	Mexico	0.1
	04 Jul 2018 17:15	Santiago	Mexico	0.1
	04 Jul 2018 17:15	Manzanillo	Mexico	0.1
	04 Jul 2018 17:15	El Ciruelo	Mexico	0.1
	06 Jul 2018 18:15	Mission	United States	0.1
	04 Jul 2018 21:30	Queretaro	Mexico	0.1
	07 Jul 2018 05:30	Ayutla	Mexico	0.1
	06 Jul 2018 18:15	San Buenaventura	United States	0.1
	06 Jul 2018 18:15	Ventura	United States	0.1
	06 Jul 2018 18:15	Hollywood By The Sea	United States	0.1
	06 Jul 2018 18:15	Channel Islands Beach	United States	0.1
	06 Jul 2018 18:15	Oxnard	United States	0.1
	07 Jul 2018 12:00	Newport Beach	United States	0.1
	07 Jul 2018 12:00	Cliff Haven	United States	0.1
	07 Jul 2018 12:00	Bay Shores	United States	0.1
	07 Jul 2018 12:00	Balboa	United States	0.1
	06 Jul 2018 18:15	Hope Ranch	United States	0.1
	07 Jul 2018 12:00	Rolling Hills	United States	0.1
	07 Jul 2018 12:00	San Pedro	United States	0.1
	04 Jul 2018 18:30	Marmol	Mexico	0.1
	04 Jul 2018 18:30	Florida	Mexico	0.1
	06 Jul 2018 17:30	Isla Natividad	Mexico	0.1
	04 Jul 2018 21:00	La Florida	Mexico	0.1
	04 Jul 2018 21:00	Adolfo Lopez Mateos	Mexico	0.1
	07 Jul 2018 05:15	Mirador	Mexico	0.1
	06 Jul 2018 17:45	Cuamecate	Mexico	0.1
	06 Jul 2018 17:45	Santa Cruz	Mexico	0.1
	06 Jul 2018 17:45	El Nuevo	Mexico	0.1
	04 Jul 2018 21:30	Las Flores	United States	0.1
	04 Jul 2018 21:30	Castellammare	United States	0.1
	04 Jul 2018 21:30	Pacific Palisades	United States	0.1
	04 Jul 2018 21:30	Santa Monica	United States	0.1
	04 Jul 2018 21:30	Sawtelle	United States	0.1
	04 Jul 2018 21:30	Marina del Rey	United States	0.1
	04 Jul 2018 21:30	Playa del Rey	United States	0.1
	04 Jul 2018 21:30	Alsace	United States	0.1
	04 Jul 2018 21:30	El Segundo	United States	0.1
	04 Jul 2018 21:30	Manhattan Beach	United States	0.1
	04 Jul 2018 21:30	Hermosa Beach	United States	0.1
	04 Jul 2018 21:30	Redondo Beach	United States	0.1
	06 Jul 2018 17:30	Erendria	Mexico	0.1
	07 Jul 2018 05:15	Tangolunda	Mexico	0.1
	04 Jul 2018 18:45	La Playa Colorada	Mexico	0.1
	07 Jul 2018 05:15	Bajo de Arenal	Mexico	0.1
	06 Jul 2018 17:00	San Blas	Mexico	0.1
	06 Jul 2018 17:00	Santa Cruz	Mexico	0.1
	04 Jul 2018 18:30	La Ribera	Mexico	0.1
	04 Jul 2018 18:30	Punta Colorada	Mexico	0.1
	04 Jul 2018 18:30	Punta Arena	Mexico	0.1
	04 Jul 2018 18:30	Los Tesos	Mexico	0.1
	07 Jul 2018 05:15	Loma Larga	Mexico	0.1
	06 Jul 2018 18:15	Coromar	United States	0.1
	06 Jul 2018 18:15	Goleta	United States	0.1
	06 Jul 2018 18:15	Isla Vista	United States	0.1
	07 Jul 2018 05:15	Puerto Angel	Mexico	0.1
	07 Jul 2018 05:15	La Redonda	Mexico	0.1
	07 Jul 2018 10:30	Rancho San Francisco	Mexico	0.1
	07 Jul 2018 10:30	Colonia Camalu	Mexico	0.1
	06 Jul 2018 17:00	Santa Catarina	Mexico	0.1
	06 Jul 2018 00:00	Tierra Colorada	Mexico	0.1
	07 Jul 2018 05:15	Coyote	Mexico	0.1
	07 Jul 2018 05:15	Tlachicon	Mexico	0.1
	06 Jul 2018 18:30	Naples	United States	0.1
	06 Jul 2018 17:15	Rancho Datilari	Mexico	0.1
	04 Jul 2018 21:30	Palos Verdes Estates	United States	0.1
	04 Jul 2018 21:30	Clifton	United States	0.1
	04 Jul 2018 21:30	Rolling Hills Estates	United States	0.1
	07 Jul 2018 05:00	Paso Hondo	Mexico	0.1
	07 Jul 2018 10:30	Rancho Cepeda	Mexico	0.1
	07 Jul 2018 05:00	Puerto Escondido	Mexico	0.1
	07 Jul 2018 05:00	Chagues	Mexico	0.1
	06 Jul 2018 18:30	Capitan	United States	0.1
	07 Jul 2018 05:00	Bajos de Chila	Mexico	0.1
	07 Jul 2018 02:00	Isla de Palmito del Verde	Mexico	0.1
	04 Jul 2018 18:45	Altata	Mexico	0.1
	04 Jul 2018 18:45	El Castillo	Mexico	0.1
	07 Jul 2018 10:30	Fort Rosecrans	United States	0.1
	04 Jul 2018 18:30	Perihuete	Mexico	0.1
	04 Jul 2018 18:30	Mazatlan	Mexico	0.1
	07 Jul 2018 05:30	Marquelia	Mexico	0.1
	07 Jul 2018 05:00	El Papayo	Mexico	0.1
	06 Jul 2018 18:30	Tajiguas	United States	0.1
	07 Jul 2018 05:30	La Tuza	Mexico	0.1
	07 Jul 2018 05:30	Pie Cerro	Mexico	0.1
	06 Jul 2018 18:30	La Trinadad	Mexico	0.1
	07 Jul 2018 05:30	Mauricio Gutierrez	Mexico	0.1
	07 Jul 2018 05:30	Copala	Mexico	0.1
	06 Jul 2018 17:30	Las Arenitas	Mexico	0.1
	06 Jul 2018 17:30	La Boca	Mexico	0.1
	07 Jul 2018 11:15	La Mision	Mexico	0.1
	07 Jul 2018 11:15	Encino Solo	Mexico	0.1
	06 Jul 2018 17:30	Rancho Boca de San Jose	Mexico	0.1
	06 Jul 2018 00:15	La Palmita	Mexico	0.1
	06 Jul 2018 00:15	Caimanero	Mexico	0.1
	06 Jul 2018 00:15	Jarilla	Mexico	0.1
	04 Jul 2018 21:30	El Nido	United States	0.1
	04 Jul 2018 21:30	Malibu Bowl	United States	0.1
	04 Jul 2018 21:30	Malibu	United States	0.1
	04 Jul 2018 21:30	Monte Nido	United States	0.1
	06 Jul 2018 17:00	Dimas	Mexico	0.1
	07 Jul 2018 05:15	El Marques	Mexico	0.1
	07 Jul 2018 05:15	Acapulco	Mexico	0.1
	07 Jul 2018 05:15	Calvario	Mexico	0.1
	06 Jul 2018 18:00	La Jolla	United States	0.1
	06 Jul 2018 18:00	The Muirlands	United States	0.1
	06 Jul 2018 18:00	Azure Vista	United States	0.1
	06 Jul 2018 18:00	Ocean Beach	United States	0.1
	06 Jul 2018 18:00	Mission Beach	United States	0.1
	06 Jul 2018 18:00	Easter Cross	United States	0.1
	06 Jul 2018 18:00	Roseville	United States	0.1
	06 Jul 2018 18:00	Campland on the Bay Trailer Park	United States	0.1
	06 Jul 2018 18:00	Sorrento	United States	0.1
	06 Jul 2018 18:00	Loma Portal	United States	0.1
	06 Jul 2018 18:00	San Diego	United States	0.1
	07 Jul 2018 05:00	Nuxco	Mexico	0.1
	06 Jul 2018 18:00	Cardiff-by-the-Sea	United States	0.1
	06 Jul 2018 18:00	Solana Beach	United States	0.1
	06 Jul 2018 18:00	Del Mar	United States	0.1
	06 Jul 2018 18:00	Leucadia	United States	0.1
	06 Jul 2018 18:00	Encinitas	United States	0.1
	06 Jul 2018 18:00	Green Valley Mobile Estates	United States	0.1
	07 Jul 2018 05:00	Coyuquillas	Mexico	0.1
	06 Jul 2018 18:30	Lento	United States	0.1
	06 Jul 2018 18:00	Carlsbad	United States	0.1
	06 Jul 2018 18:00	Ponto	United States	0.1
	06 Jul 2018 18:15	Las Palmas	Mexico	0.1
	06 Jul 2018 17:30	Toro Mocho	Mexico	0.1
	04 Jul 2018 17:15	Estrecho	Mexico	0.1
	06 Jul 2018 18:00	Fallbrook Junction	United States	0.1
	06 Jul 2018 18:00	Camp Pendleton South	United States	0.1
	06 Jul 2018 18:00	Escondido Junction	United States	0.1
	06 Jul 2018 18:00	Oceanside	United States	0.1
	07 Jul 2018 01:45	La Puerta	Mexico	0.1
	04 Jul 2018 20:15	Puerto Magdalena	Mexico	0.1
	06 Jul 2018 18:00	Las Flores	United States	0.1
	06 Jul 2018 18:00	Stuart	United States	0.1
	06 Jul 2018 15:45	San Carlos	Mexico	0.1
	07 Jul 2018 10:15	El Descanso	Mexico	0.1
	06 Jul 2018 18:30	Sycamore	United States	0.1
	06 Jul 2018 18:30	Solromar	United States	0.1
	06 Jul 2018 18:00	Agra	United States	0.1
	06 Jul 2018 18:30	Las Cruces	United States	0.1
	06 Jul 2018 18:30	Gaviota	United States	0.1
	06 Jul 2018 17:45	Punta Mita	Mexico	0.1
	06 Jul 2018 17:45	Cruz de Juanacaxtle	Mexico	0.1
	04 Jul 2018 18:00	Port San Luis	United States	0.1
	04 Jul 2018 18:00	Avila Beach	United States	0.1
	04 Jul 2018 18:00	Sycamore Springs	United States	0.1
	04 Jul 2018 18:00	Pismo Beach	United States	0.1
	04 Jul 2018 18:00	Oceano	United States	0.1
	04 Jul 2018 18:00	Grover City	United States	0.1
	04 Jul 2018 18:00	Callender	United States	0.1
	06 Jul 2018 18:15	Los Frailes	Mexico	0.1
	06 Jul 2018 18:15	South Laguna	United States	0.1
	06 Jul 2018 18:15	Capistrano Beach	United States	0.1
	06 Jul 2018 18:15	San Clemente	United States	0.1
	07 Jul 2018 05:15	Zihuatanejo	Mexico	0.1
	06 Jul 2018 18:00	Point Dume	United States	0.1
	06 Jul 2018 18:00	Malibu Vista	United States	0.1
	07 Jul 2018 12:00	Rancho Palos Verdes	United States	0.1
	06 Jul 2018 18:30	Malibu West	United States	0.1
	07 Jul 2018 05:45	Playa Azul	Mexico	0.1
	07 Jul 2018 05:45	Melchor Ocampo	Mexico	0.1
	04 Jul 2018 20:30	Quinones	Mexico	0.1
	06 Jul 2018 18:15	Emerald Bay	United States	0.1
	06 Jul 2018 18:15	Laguna Beach	United States	0.1
	06 Jul 2018 18:15	Canyon Acres	United States	0.1
	06 Jul 2018 18:15	Top of the World	United States	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.