Overall Orange Tropical Cyclone alert for HARVEY-17 in United States from 17 Aug 2017 15:00 UTC to 18 Aug 2017 09:00 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 Orange alert Tropical Cyclone for HARVEY-17

in United States

18 Aug 2017 09 UTC

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Meteorological source:

GDACS NOAA

Impact Single TC

Impact based on all weather systems in the area

Impact

Tropical Cyclone HARVEY-17 can have a medium humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source	GDACS
Glide number:	TC-2017-000123-USA
Exposed countries	United States
Exposed population	500 thousand in Category 1 or higher
Maximum wind speed	213 km/h
Maximum storm surge	0.5 m (21 Aug 19:00 UTC)
Vulnerability	Low (United States)

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	111 km/h	0.5 m	n.a.	0.5
Overall	213 km/h	0.5 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

111 km/h Current Max.

Up to 2.3 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	17 Aug 2017 15:00	120	2.7 million	No people	Barbados, Saint Lucia, Saint Vincent and the Grenadines, Honduras, Nicaragua, Mexico, Belize, Guatemala
2	17 Aug 2017 21:00	111	4 million	No people	Barbados, Saint Lucia, Saint Vincent and the Grenadines, Nicaragua, Honduras, Mexico, Belize, Guatemala
3	18 Aug 2017 03:00	111	2.8 million	No people	Barbados, Saint Lucia, Saint Vincent and the Grenadines, Nicaragua, Honduras, Mexico, Belize, Guatemala
4	18 Aug 2017 09:00	111	2.3 million	No people	Barbados, Saint Lucia, Saint Vincent and the Grenadines, Honduras, Nicaragua, Mexico, Belize, Guatemala

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	17 Aug 2017 15:00	Tropical depression	56	no people	no people	13.1, -54.1
2	17 Aug 2017 21:00	Tropical storm	65	no people	no people	13, -55.8
3	18 Aug 2017 03:00	Tropical storm	65	no people	290000 people	13, -57.4	Barbados
4	18 Aug 2017 09:00	Tropical storm	65	no people	500000 people	13.1, -59.1	Saint Vincent and the Grenadines
4	18 Aug 2017 18:00	Tropical storm	65	no people	110000 people	13.2, -61.7	Saint Vincent and the Grenadines
4	19 Aug 2017 06:00	Tropical storm	74	no people	no people	13.5, -65.2
4	19 Aug 2017 18:00	Tropical storm	74	no people	no people	13.9, -68.8
4	20 Aug 2017 06:00	Tropical storm	93	no people	no people	14.1, -72.7
4	21 Aug 2017 06:00	Tropical storm	111	no people	1.1 million people	15, -80.2	Honduras
4	22 Aug 2017 06:00	Tropical storm	111	no people	1.6 million people	16.5, -86.5	Guatemala
4	23 Aug 2017 06:00	Tropical storm	65	no people	no people	17.5, -90	Guatemala

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
Barbados
St. Lucia
St. Vincent & the Grenadines
Honduras
Nicaragua
Mexico
Belize
Guatemala

Provinces

Region Province	Country
Barbados	Barbados
St. Lucia	Saint Lucia
St. Vincent & the Grenadines	Saint Vincent and the Grenadines
Gracias a Dios	Honduras
Zelaya	Nicaragua
Olancho	Honduras
Colon	Honduras
Yoro	Honduras
Islas de la Bahia	Honduras
Atlantida	Honduras
Quintana Roo	Mexico
Cortes	Honduras
Belize	Belize
Corozal	Belize
Stann Creek	Belize
Toledo	Belize
Orange Walk	Belize
Cayo	Belize
Peten	Guatemala
Campeche	Mexico

Populated places

Name	Region Province	Country	City class	Population
Bridgetown	Saint Michael	Barbados	Capital	97000 people
Castries	Castries	St. Lucia	Capital	13000 people
Kingstown	Saint George	St. Vincent and the Grenadines	Capital	18000 people
Trujillo	Colón	Honduras	City	9600 people
Sonaguera	Colón	Honduras	City	11000 people
Olanchito	Yoro	Honduras	City	26000 people
La Ceiba	Atlántida	Honduras	City	130000 people
Tela	Atlántida	Honduras	City	29000 people
Stann Creek Town	Stann Creek	Belize	City	-
Belize City	Belize	Belize	City	-
Belmopan	Cayo	Belize	Capital	13000 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)
Grantley Adams International	BGI	52	Civ.	Paved	Yes	11000
Hewanorra International	UVF	3	Civ.	Paved	Yes	9000
E T Joshua	SVD	20	Civ.	Paved	Yes	4600
J F Mitchell		4	Civ.	Paved	No	3600
Canouan		5	Civ.	Paved	No	3600
Palm Island	PLI	unknown				0
Union Island	UNI	unknown				0
Carriacou	CRU	unknown				0
Puerto Lempira	PEU	8	Civ.	Unpaved	No	5000
Waspan		35				0
Waspam	WSP	unknown				0
Mocoron / Durzuna		76				0
Ahuas	AHS	30				0
Brus Laguna Araslaya	BHG	unknown				0
Iriona	IRN	unknown				0
Limon	LMH	unknown				0
Bonito Oriental		22				0
San Esteban	SET	unknown				0
Trujillo Capiro	TJI	unknown				0
Trujillo		3				0
Guanaja	GJA	11				0
Gualaco	GUO	unknown				0
Tocoa	TCF	unknown				0
Roatan Island	RTB	2	Civ.	Paved	Yes	6300
Olanchito	OAN	unknown				0
Coyoles	CYL	unknown				0
Goloson International	LCE	15	Civ.	Paved	Yes	9600
Utila Island	UII	unknown				0
Tela	TEA	2	Civ.	Paved	No	4400
San Pedro	SPR	1				0
Caye Chapel	CYC	unknown				0
Silver Creek	SVK	unknown				0
Melinda	MDB	unknown				0
Philip S. W. Goldson International	BZE	5	Civ.	Paved	Yes	7100
Independence	INB	unknown				0
Dangriga	DGA	unknown				0
Orange Walk	ORZ	unknown				0
Punta Gorda	PND	unknown				0
Melchor de Mencos	MCR	unknown				0
Uaxactun	UAX	unknown				0
Dos Lagunas Peten	DON	unknown				0
Santa Elena	FRS	128	Civ.	Paved	Yes	10000
Carmelita	CMM	unknown				0
Paso Caballos	PCG	unknown				0
Xam	XAM	unknown				0

Ports

Name	LOCODE	Country
Bridgetown	BBBGI	Barbados
Speightstown		Barbados
Vieux Fort		Saint Lucia
Cul de Sac Bay	LCCDS	Saint Lucia
Kingstown	VCKTN	Saint Vincent and the Grenadines
Admiralty Bay		Saint Vincent and the Grenadines
Cayos Miskitos		Nicaragua
Cape Gracias A Dios		Honduras
Puerto Lempire		Honduras
Caratasco		Honduras
Guanaja Island	HNGJA	Honduras
Trujillo		Honduras
Puerto Castilla	HNPCA	Honduras
Coxen Bay		Honduras
La Ceiba	HNLCE	Honduras
Puerto Este		Honduras
Utila Island		Honduras
Tela	HNTEA	Honduras
Puerto Cortes	HNPCR	Honduras
Stann Creek		Belize
Belize	BZBZE	Belize

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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

0.5 m

The maximum Storm surge height is 0.5m in Dapat, Honduras. This height is estimated for 21 Aug 2017 19:00 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 (109 locations). Calculation based on advisory number 4 of 18 Aug 2017 09:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	21 Aug 2017 19:00	Dapat	Honduras	0.5
	21 Aug 2017 19:00	Kaski	Honduras	0.5
	21 Aug 2017 17:00	Kanko	Honduras	0.4
	21 Aug 2017 17:00	Raya	Honduras	0.4
	21 Aug 2017 17:00	Clubki	Honduras	0.4
	21 Aug 2017 17:00	Canco	Honduras	0.4
	21 Aug 2017 17:00	Tay Lirila	Honduras	0.4
	21 Aug 2017 19:00	Barra de Caratasca	Honduras	0.4
	21 Aug 2017 22:00	Tusi Cocal	Honduras	0.4
	21 Aug 2017 16:00	Irlaya	Honduras	0.4
	21 Aug 2017 17:00	Barra Kruta	Honduras	0.4
	21 Aug 2017 17:00	Cauauira	Honduras	0.4
	22 Aug 2017 04:00	Barranco Blanco	Honduras	0.4
	21 Aug 2017 18:00	Patlaya	Honduras	0.3
	21 Aug 2017 18:00	Pusuaya	Honduras	0.3
	21 Aug 2017 20:00	Yahurabila	Honduras	0.3
	22 Aug 2017 04:00	Guanaja	Honduras	0.3
	22 Aug 2017 04:00	Red Cliff	Honduras	0.3
	22 Aug 2017 04:00	Empalme	Honduras	0.3
	22 Aug 2017 05:00	Barbareta	Honduras	0.3
	22 Aug 2017 05:00	Alligartor Nose	Honduras	0.3
	22 Aug 2017 05:00	Santa Elena	Honduras	0.3
	21 Aug 2017 22:00	Mocobila	Honduras	0.3
	22 Aug 2017 03:00	Trujillo	Honduras	0.3
	21 Aug 2017 21:00	Barra del Patuca	Honduras	0.3
	21 Aug 2017 22:00	Huarta	Honduras	0.3
	22 Aug 2017 06:00	Second Bight	Honduras	0.3
	21 Aug 2017 15:00	Cabo Gracias a Dios	Honduras	0.3
	21 Aug 2017 18:00	Uhi	Honduras	0.3
	22 Aug 2017 05:00	Calabash Bight	Honduras	0.3
	21 Aug 2017 19:00	Claura	Honduras	0.3
	21 Aug 2017 22:00	Rio Platano	Honduras	0.3
	22 Aug 2017 00:00	Bruner	Honduras	0.3
	22 Aug 2017 03:00	Pital	Honduras	0.3
	21 Aug 2017 23:00	Tasbarraya	Honduras	0.2
	22 Aug 2017 00:00	La Puerta	Honduras	0.2
	22 Aug 2017 00:00	Donel	Honduras	0.2
	22 Aug 2017 04:00	Puerto Castilla	Honduras	0.2
	22 Aug 2017 06:00	Crawfish Rock	Honduras	0.2
	21 Aug 2017 16:00	Cabo Gracias Viejo	Nicaragua	0.2
	21 Aug 2017 23:00	Baltimore	Honduras	0.2
	22 Aug 2017 00:00	El Urraco	Honduras	0.2
	22 Aug 2017 00:00	Iriona	Honduras	0.2
	22 Aug 2017 04:00	Rio Esteban	Honduras	0.2
	22 Aug 2017 04:00	Miranda	Honduras	0.2
	22 Aug 2017 04:00	Black Rock	Honduras	0.2
	22 Aug 2017 06:00	Antoneys Cay	Honduras	0.2
	22 Aug 2017 06:00	Cohoon Ridge	Honduras	0.2
	22 Aug 2017 06:00	Roatan	Honduras	0.2
	22 Aug 2017 00:00	Limon	Honduras	0.2
	22 Aug 2017 00:00	Farallones	Honduras	0.2
	22 Aug 2017 03:00	Santa Fe	Honduras	0.2
	22 Aug 2017 03:00	Balfate	Honduras	0.2
	22 Aug 2017 06:00	The Swash	Honduras	0.2
	22 Aug 2017 04:00	Betulia	Honduras	0.2
	22 Aug 2017 03:00	Limera	Honduras	0.2
	22 Aug 2017 02:00	Barra de Chapagua	Honduras	0.2
	22 Aug 2017 01:00	Santa Rosa Aguan	Honduras	0.2
	19 Aug 2017 19:00	Caduto	Venezuela	0.2
	19 Aug 2017 18:00	Cujizal	Venezuela	0.2
	19 Aug 2017 18:00	Palencia	Venezuela	0.2
	19 Aug 2017 18:00	Guasare Abajo	Venezuela	0.1
	22 Aug 2017 03:00	Quebrada Grande	Honduras	0.1
	22 Aug 2017 06:00	Cuero	Honduras	0.1
	19 Aug 2017 18:00	Puerto Zazarida	Venezuela	0.1
	22 Aug 2017 06:00	Bella Vista	Honduras	0.1
	22 Aug 2017 06:00	Los Cayitos	Honduras	0.1
	22 Aug 2017 06:00	El Porvenir	Honduras	0.1
	22 Aug 2017 06:00	La Ceiba	Honduras	0.1
	22 Aug 2017 06:00	El Naranjo	Honduras	0.1
	22 Aug 2017 06:00	Boca Vieja	Honduras	0.1
	22 Aug 2017 04:00	Agua Dulce	Honduras	0.1
	19 Aug 2017 18:00	Ocorote	Venezuela	0.1
	19 Aug 2017 18:00	Rio Seco	Venezuela	0.1
	19 Aug 2017 18:00	Algodones	Venezuela	0.1
	19 Aug 2017 18:00	Jagueicito	Venezuela	0.1
	22 Aug 2017 07:00	Gualora	Honduras	0.1
	22 Aug 2017 06:00	Condega	Honduras	0.1
	22 Aug 2017 09:00	Mullins	Belize	0.1
	18 Aug 2017 10:00	Sam Lord's Castle	Barbados	0.1
	18 Aug 2017 12:00	Speightstown	Barbados	0.1
	18 Aug 2017 12:00	Mullins Bay	Barbados	0.1
	18 Aug 2017 12:00	Holetown	Barbados	0.1
	18 Aug 2017 11:00	Collins	Barbados	0.1
	18 Aug 2017 11:00	Saint Lawrence Gap	Barbados	0.1
	18 Aug 2017 11:00	Oistins	Barbados	0.1
	18 Aug 2017 11:00	Bathsheba	Barbados	0.1
	18 Aug 2017 11:00	Gibbons	Barbados	0.1
	18 Aug 2017 12:00	Bridgetown	Barbados	0.1
	18 Aug 2017 17:00	Calliaqua	St. Vincent and the Grenadines	0.1
	18 Aug 2017 16:00	Georgetown	St. Vincent and the Grenadines	0.1
	18 Aug 2017 17:00	Kingstown	St. Vincent and the Grenadines	0.1
	18 Aug 2017 17:00	Chateaubelair	St. Vincent and the Grenadines	0.1
	18 Aug 2017 17:00	Union	St. Vincent and the Grenadines	0.1
	22 Aug 2017 04:00	Piedra Pintada	Honduras	0.1
	22 Aug 2017 05:00	Boca del Toro	Honduras	0.1
	22 Aug 2017 09:00	Freetown Area	Belize	0.1
	22 Aug 2017 09:00	Stann Creek Town	Belize	0.1
	19 Aug 2017 18:00	Cuajaracume	Venezuela	0.1
	19 Aug 2017 18:00	Cauca	Venezuela	0.1
	19 Aug 2017 17:00	Codore Adentro	Venezuela	0.1
	18 Aug 2017 17:00	Fancy	St. Vincent and the Grenadines	0.1
	18 Aug 2017 16:00	Mustique	St. Vincent and the Grenadines	0.1
	22 Aug 2017 07:00	Utila	Honduras	0.1
	19 Aug 2017 17:00	Zazarida	Venezuela	0.1
	19 Aug 2017 18:00	Arajo	Venezuela	0.1
	19 Aug 2017 17:00	Puerto Gutierrez	Venezuela	0.1
	19 Aug 2017 17:00	Los Hatos	Venezuela	0.1
	19 Aug 2017 19:00	Cayude	Venezuela	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.