Overall Orange Tropical Cyclone alert for HARVEY-17 in United States from 17 Aug 2017 15:00 UTC to 23 Aug 2017 21:00 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

23 Aug 2017 21 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	1.2 m (26 Aug 12:00 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	1.2 m	n.a.	0.5
Overall	213 km/h	1.2 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

111 km/h Current Max.

Up to 5.1 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
5	18 Aug 2017 15:00	111	4.3 million	No people	Saint Vincent and the Grenadines, Saint Lucia, Grenada, Barbados, Honduras, Nicaragua, Mexico, Belize, Guatemala
6	18 Aug 2017 21:00	111	2.6 million	No people	Saint Vincent and the Grenadines, Grenada, Saint Lucia, Barbados, Nicaragua, Honduras, Mexico, Belize, Guatemala
7	19 Aug 2017 03:00	102	3.5 million	No people	Grenada, Saint Vincent and the Grenadines, Saint Lucia, Barbados, Nicaragua, Honduras, Mexico, Belize, Guatemala
8	19 Aug 2017 09:00	102	3.2 million	No people	Grenada, Saint Vincent and the Grenadines, Saint Lucia, Barbados, Nicaragua, Honduras, Mexico, Belize, Guatemala
9	19 Aug 2017 15:00	111	2.6 million	No people	Grenada, Saint Vincent and the Grenadines, Saint Lucia, Barbados, Honduras, Nicaragua, Mexico, Belize, Guatemala
10	19 Aug 2017 21:00	83	2.7 million	No people	Grenada, Saint Vincent and the Grenadines, Saint Lucia, Barbados, Honduras, Nicaragua, Mexico, Belize, Guatemala
11	20 Aug 2017 03:00	56	580 thousand	No people	Grenada, Saint Vincent and the Grenadines, Saint Lucia, Barbados
12	23 Aug 2017 15:00	111	14.7 million	No people	Mexico, United States, Grenada, Saint Lucia, Saint Vincent and the Grenadines, Barbados
13	23 Aug 2017 21:00	111	5.1 million	No people	Mexico, United States, Saint Lucia, Grenada, Saint Vincent and the Grenadines, Barbados

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
5	18 Aug 2017 15:00	Tropical storm	65	no people	290000 people	13.1, -61.3	Saint Vincent and the Grenadines
6	18 Aug 2017 21:00	Tropical storm	65	no people	no people	13.4, -62.9
7	19 Aug 2017 03:00	Tropical storm	65	no people	no people	13.7, -64.1
8	19 Aug 2017 09:00	Tropical storm	65	no people	no people	13.8, -65.9
9	19 Aug 2017 15:00	Tropical storm	65	no people	no people	13.9, -68.1
10	19 Aug 2017 21:00	Tropical depression	56	no people	no people	14.1, -70
11	20 Aug 2017 03:00	Tropical depression	56	no people	no people	14.3, -71.8
12	23 Aug 2017 15:00	Tropical depression	56	no people	no people	21.5, -92.5
13	23 Aug 2017 21:00	Tropical depression	56	no people	no people	21.6, -92.6
13	24 Aug 2017 06:00	Tropical storm	65	no people	no people	22.4, -93
13	24 Aug 2017 18:00	Tropical storm	74	no people	no people	23.8, -93.9
13	25 Aug 2017 06:00	Tropical storm	93	no people	2.4 million people	25.1, -95.2	Mexico
13	25 Aug 2017 18:00	Tropical storm	111	no people	4.2 million people	26.4, -96.3	Mexico
13	26 Aug 2017 18:00	Tropical storm	93	no people	2.2 million people	28.6, -97.3	United States
13	27 Aug 2017 18:00	Tropical storm	65	no people	950000 people	29, -97.3	United States
13	28 Aug 2017 18:00	Tropical storm	65	no people	no people	29, -96.5	United States

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
Mexico
United States
St. Lucia
Grenada
St. Vincent & the Grenadines
Barbados

Provinces

Region Province	Country
Tamaulipas	Mexico
Texas	United States
St. Lucia	Saint Lucia
Grenada	Grenada
St. Vincent & the Grenadines	Saint Vincent and the Grenadines
Barbados	Barbados

Populated places

Name	Region Province	Country	City class	Population
Matamoros	Tamaulipas	Mexico	City	430000 people
Brownsville	Texas	United States	City	140000 people
Valle Hermoso	Tamaulipas	Mexico	City	48000 people
San Benito	Texas	United States	City	23000 people
Harlingen	Texas	United States	City	58000 people
Mercedes	Texas	United States	City	14000 people
Donna	Texas	United States	City	15000 people
Raymondville	Texas	United States	City	9700 people
Pharr	Texas	United States	City	47000 people
McAllen	Texas	United States	City	110000 people
Edinburg	Texas	United States	City	48000 people
Sarita	Texas	United States	City	-
Corpus Christi	Texas	United States	Major city	280000 people
Falfurrias	Texas	United States	City	5300 people
Kingsville	Texas	United States	City	26000 people
Robstown	Texas	United States	City	13000 people
Sinton	Texas	United States	City	5700 people
Port Lavaca	Texas	United States	City	12000 people
Alice	Texas	United States	City	19000 people
Bay City	Texas	United States	City	19000 people
Mathis	Texas	United States	City	5000 people
Victoria	Texas	United States	City	61000 people
Edna	Texas	United States	City	5900 people
Beeville	Texas	United States	City	13000 people
El Campo	Texas	United States	City	11000 people
New Territory	Texas	United States	City	14000 people
Guero	Texas	United States	City	-
Cinco Ranch	Texas	United States	City	11000 people
Yoakum	Texas	United States	City	5700 people
Gonzales	Texas	United States	City	7200 people
Seguin	Texas	United States	City	22000 people
San Antonio	Texas	United States	Major city	1.1 million people
Lockhart	Texas	United States	City	12000 people
New Braunfels	Texas	United States	City	36000 people
San Marcos	Texas	United States	City	35000 people
Castries	Castries	St. Lucia	Capital	13000 people
Kingstown	Saint George	St. Vincent and the Grenadines	Capital	18000 people
Bridgetown	Saint Michael	Barbados	Capital	97000 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)
El Mezquite		5				0
U S Coast Guard Station		1				0
Matamoros	MAM	8	Civ.	Paved	Yes	7500
South Padre Island International	BRO	7	Civ.	Paved	Yes	7400
Southeastern Helicopters		2				0
Columbia Valley Regional		8				0
Port Isabel Cameron County		6	Civ.	Paved	Yes	8000
Drennan Farm		8				0
Rancho Buena Vista		6				0
AG Air Inc.		9				0
San Benito Municipal		9				0
Texas Air Museum		9				0
Farmer's Co-op		11				0
Valley Baptist Medical Center		18				0
Rio Grande Valley International	HRL	11	Civ.	Paved	Yes	8300
Shofner Farms		17				0
Progreso		21				0
Charles R Johnson		3				0
Old Reb		18				0
Mid Valley		21				0
T R Funk Inc.		7				0
Gen Lucio Blanco International	REX	39	Civ.	Paved	Yes	6200
Bell Airfield		9				0
Cannon Aviation		20				0
Mid-Valley Dusters Inc		28				0
Miller International	MFE	33	Civ.	Paved	Yes	7100
Norman & White		27				0
Gross (Private)		48				0
Edinburg Rio Grande Valley		24				0
Moore Field		67				0
Armstrong Ranch		8				0
El Coyote Ranch		60				0
Mustang Island		3				0
Waldron Field Nalf		8				0
Mustang Beach		2				0
Corpus Christi NAS	NGP	6	Mil.	Paved	Yes	8000
San Jose Island		3				0
Cage Ranch		45				0
Aransas Pass		1				0
Cabaniss Field Nalf	NGW	10				0
Jbh Aerospace		5				0
D.F.C.H.		9				0
Dean		14				0
Brooks County		34				0
Aransas Natl Wldlife Refuge		3				0
Coastal Bend Hospital		3				0
Texas Dept. of Public Safety		11				0
Cig 402		34				0
Memorial Medical Center		12				0
Kingsville NAS	NQI	15	Mil.	Paved	No	8000
Cuddihy Field	CUX	12				0
T P Mc Campbell		5				0
Corpus Christi International	CRP	13	Civ.	Paved	Yes	7500
Industrial Helicopters Inc		3				0
Bishop Municipal		17				0
Pierce Field		2				0
Hunt		12				0
Magee		11				0
Matagorda Peninsula		3				0
Aransas County	RKP	8	Civ.	Paved	Yes	5600
Kalt Ranch		5				0
Air Logistics		2				0
Hpl		18				0
Weeks		58				0
Seeligson Ranch		52				0
Oliver Till		26				0
Matagorda Shore Facility		2				0
Port O'connor Base (Ehi)		2				0
Nueces County		24				0
Kleberg County		40				0
Rabb Dusting Inc		25				0
High Man Tower Airstrip		27				0
Tgp 1		33				0
4-G Ranch		83				0
Big Duke's Place		2				0
Old Hoppe Place		29				0
Cig 804		7				0
South Texas Project		10				0
Whatley Flying Service		6				0
Sartwelle Ranch		5				0
San Patricio County		15				0
Trull		5				0
Palacios Municipal	PSX	5	Civ.	Paved	Yes	5000
Eagle Air Park		5				0
Fay Ranch		8				0
Tanner's		5				0
Alice International	ALI	54	Civ.	Paved	Yes	6000
Mellon Ranch		12				0
Gulf Coast		11				0
Wolf Point		4				0
Kubecka Aviation		6				0
Brazoria H Ferry	BZT	unknown				0
San Patricio International		15				0
Cig 806		7				0
Bay City Municipal	BBC	14				0
Brazoria County	LJN	8	Civ.	Paved	Yes	7000
Rooke Field	RFG	17	Civ.	Paved	No	4500
Fehmel Dusting Service		15				0
Calhoun County		10				0
Green Lake Ranch		15				0

Ports

Name	LOCODE	Country
Port Isabel	USPIS	Wake Island
Brownsville	USBRO	Wake Island
Port Aransas		Wake Island
Corpus Christi	USCRP	Wake Island
Port Ingleside		Wake Island
Ingleside		Wake Island
Rockport		Wake Island
Port O'Connor		Wake Island
Palacios		Wake Island
Point Comfort	USPCR	Wake Island
Port Lavaca	USPLV	Wake Island
Cul de Sac Bay	LCCDS	Saint Lucia
Castries	LCSLU	Saint Lucia
Kingstown	VCKTN	Saint Vincent and the Grenadines
Admiralty Bay		Saint Vincent and the Grenadines
Vieux Fort		Saint Lucia
Speightstown		Barbados
Bridgetown	BBBGI	Barbados

Dams

Reservoir	Dam Name	River	Year
Monte Alto Reservoir	Delta Lake Unit 2 Levee	OS	1939
Lake Edinburg	Retama Reservoir Levee	OS	1935
	Cooling Reservoir Dam	Offstream Colorado River	1981
	Brazoria Reservoir Dam	Offstream Brazos River	1954
	Prudential Reservoir 3	Trib. Kellers Creek	1976
	Wesley E. Seale Dam	Nueces River	1958
	William Harris Reservoir Dam	Offstream Oyster Creek	1947
	Palmetto Bend Dam	Navidad River	1981
	Coleto Creek Dam	Coleto Creek	1980
Lake George	Smithers Lake Dam	Dry Creek	1957
Choke Canyon	Choke Canyon	Frio River	1981
	Cedar Creek Dam	Cedar Creek	1977
	Calaveras Creek Dam	Calaveras Creek	1969
	Victor Braunig Dam	Arroyo Seco	1963

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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

1.2 m

The maximum Storm surge height is 1.2m in Country Acres Colonia, United States. This height is estimated for 26 Aug 2017 12:00 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 (89 locations). Calculation based on advisory number 13 of 23 Aug 2017 21:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	26 Aug 2017 12:00	Country Acres Colonia	United States	1.2
	26 Aug 2017 12:00	Aransas Pass	United States	1.2
	26 Aug 2017 12:00	Estes	United States	1.2
	26 Aug 2017 12:00	Rockport	United States	1.2
	26 Aug 2017 12:00	Shell Ridge	United States	1.2
	26 Aug 2017 12:00	Copano Village	United States	1.2
	26 Aug 2017 12:00	Fulton	United States	1.2
	26 Aug 2017 12:00	Spanish Village	United States	1.2
	26 Aug 2017 12:00	Kenney Lane West Colonia	United States	1.1
	26 Aug 2017 12:00	Port Ingleside	United States	1.1
	26 Aug 2017 12:00	Indian Trails Lane Colonia	United States	1.1
	26 Aug 2017 12:00	Country Estates Colonia	United States	1.1
	26 Aug 2017 11:00	Port O'Connor	United States	0.9
	26 Aug 2017 11:00	Palacios	United States	0.9
	26 Aug 2017 09:00	Mustang Beach	United States	0.8
	26 Aug 2017 09:00	Port Aransas	United States	0.8
	25 Aug 2017 20:00	Boca Chica	United States	0.8
	25 Aug 2017 20:00	Kopernik Shores	United States	0.8
	25 Aug 2017 18:00	South Padre Island	United States	0.7
	26 Aug 2017 00:00	Nadeau	United States	0.7
	26 Aug 2017 00:00	Texas City Junction	United States	0.7
	26 Aug 2017 00:00	Bayou Vista	United States	0.7
	26 Aug 2017 00:00	Texas City	United States	0.7
	25 Aug 2017 23:00	Anderson Ways	United States	0.7
	26 Aug 2017 00:00	Virginia Point	United States	0.7
	26 Aug 2017 00:00	Port Bolivar	United States	0.7
	26 Aug 2017 00:00	Fort Travis	United States	0.7
	26 Aug 2017 00:00	Flake	United States	0.7
	26 Aug 2017 00:00	Elmgrove	United States	0.7
	26 Aug 2017 00:00	Crystal Beach	United States	0.7
	26 Aug 2017 13:00	Matagorda	United States	0.7
	25 Aug 2017 23:00	Bolivar Peninsula	United States	0.6
	26 Aug 2017 07:00	Flour Bluff	United States	0.6
	26 Aug 2017 08:00	Chinquapin	United States	0.6
	26 Aug 2017 03:00	Red Fish Cove	United States	0.5
	26 Aug 2017 04:00	Patton	United States	0.5
	26 Aug 2017 00:00	Hoskins	United States	0.5
	26 Aug 2017 00:00	Valasco Heights	United States	0.5
	26 Aug 2017 00:00	Freeport	United States	0.5
	26 Aug 2017 00:00	Mims	United States	0.5
	26 Aug 2017 00:00	Hoskins	United States	0.5
	26 Aug 2017 00:00	Port Morris	United States	0.5
	25 Aug 2017 22:00	High Island	United States	0.5
	26 Aug 2017 03:00	Intracoastal City	United States	0.5
	26 Aug 2017 01:00	Quintana	United States	0.5
	26 Aug 2017 01:00	Surfside	United States	0.5
	26 Aug 2017 01:00	Surfside Beach	United States	0.5
	26 Aug 2017 02:00	Jamaica Beach	United States	0.5
	25 Aug 2017 22:00	Caplen	United States	0.5
	25 Aug 2017 22:00	Gilchrist	United States	0.5
	26 Aug 2017 00:00	Yarborough	United States	0.5
	26 Aug 2017 04:00	Bay Harbor	United States	0.5
	26 Aug 2017 04:00	Sea Isle	United States	0.5
	25 Aug 2017 22:00	Johnson's Bayou	United States	0.5
	25 Aug 2017 22:00	Constance Beach	United States	0.5
	25 Aug 2017 22:00	Peveto Beach	United States	0.5
	26 Aug 2017 02:00	Gulf Park	United States	0.5
	25 Aug 2017 22:00	Holly Beach	United States	0.5
	25 Aug 2017 22:00	Galveston	United States	0.5
	25 Aug 2017 22:00	Cameron	United States	0.5
	26 Aug 2017 02:00	Bryan Beach	United States	0.5
	26 Aug 2017 06:00	Grand Chenier	United States	0.5
	26 Aug 2017 04:00	Cheniere Au Tigre	United States	0.5
	25 Aug 2017 17:00	Holly Beach	United States	0.4
	25 Aug 2017 17:00	Laguna Vista	United States	0.4
	25 Aug 2017 17:00	Laguna Heights	United States	0.4
	25 Aug 2017 17:00	Port Isabel	United States	0.4
	25 Aug 2017 22:00	Oak Grove	United States	0.4
	25 Aug 2017 15:00	Fraccionamiento Nuevo Leon	Mexico	0.3
	24 Aug 2017 23:00	Balantanche	Mexico	0.2
	25 Aug 2017 02:00	Celestum	Mexico	0.2
	25 Aug 2017 00:00	Haltunchen	Mexico	0.2
	25 Aug 2017 00:00	Seybaplaya	Mexico	0.2
	25 Aug 2017 00:00	Champoton	Mexico	0.2
	25 Aug 2017 02:00	Sisal	Mexico	0.2
	25 Aug 2017 21:00	Port Fourchon	United States	0.2
	25 Aug 2017 00:00	Hoquel	Mexico	0.1
	25 Aug 2017 02:00	Sabancuy	Mexico	0.1
	25 Aug 2017 02:00	Noham	Mexico	0.1
	26 Aug 2017 08:00	El Mezquital	Mexico	0.1
	25 Aug 2017 01:00	Porfirio Diaz	Mexico	0.1
	25 Aug 2017 01:00	Chenkan	Mexico	0.1
	25 Aug 2017 20:00	Gulf Park Estates	United States	0.1
	25 Aug 2017 02:00	Santa Cruz	Mexico	0.1
	25 Aug 2017 09:00	Chelem	Mexico	0.1
	25 Aug 2017 09:00	Progreso	Mexico	0.1
	25 Aug 2017 09:00	Pixoy	Mexico	0.1
	25 Aug 2017 20:00	Hilda	United States	0.1
	25 Aug 2017 20:00	Gautier	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.