Overall Orange Tropical Cyclone alert for HARVEY-17 in United States from 17 Aug 2017 15:00 UTC to 24 Aug 2017 03:00 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

24 Aug 2017 03 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 17:00 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	120 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

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
14	24 Aug 2017 03:00	120	4.6 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
14	24 Aug 2017 03:00	Tropical depression	56	no people	no people	21.9, -92.6
14	24 Aug 2017 12:00	Tropical storm	65	no people	no people	22.8, -93.1
14	25 Aug 2017 00:00	Tropical storm	74	no people	no people	24.1, -94.1
14	25 Aug 2017 12:00	Tropical storm	93	no people	1.7 million people	25.4, -95.4	Mexico
14	26 Aug 2017 00:00	Category 1	120	no people	4.1 million people	26.6, -96.3	Mexico
14	27 Aug 2017 00:00	Tropical storm	93	no people	2.7 million people	28.5, -97.5	United States
14	28 Aug 2017 00:00	Tropical storm	65	no people	1.2 million people	28.5, -98	United States
14	29 Aug 2017 00:00	Tropical depression	56	no people	no people	28, -98	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

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

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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 17:00 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 (82 locations). Calculation based on advisory number 14 of 24 Aug 2017 03:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	26 Aug 2017 17:00	Country Acres Colonia	United States	1.2
	26 Aug 2017 17:00	Aransas Pass	United States	1.2
	26 Aug 2017 17:00	Estes	United States	1.2
	26 Aug 2017 17:00	Rockport	United States	1.2
	26 Aug 2017 17:00	Shell Ridge	United States	1.2
	26 Aug 2017 17:00	Copano Village	United States	1.2
	26 Aug 2017 17:00	Fulton	United States	1.2
	26 Aug 2017 17:00	Spanish Village	United States	1.2
	26 Aug 2017 17:00	Kenney Lane West Colonia	United States	1.2
	26 Aug 2017 17:00	Port Ingleside	United States	1.2
	26 Aug 2017 17:00	Indian Trails Lane Colonia	United States	1.2
	26 Aug 2017 17:00	Country Estates Colonia	United States	1.2
	26 Aug 2017 15:00	Mustang Beach	United States	1.1
	26 Aug 2017 15:00	Port Aransas	United States	1.1
	26 Aug 2017 15:00	Port O'Connor	United States	0.9
	26 Aug 2017 15:00	Palacios	United States	0.9
	26 Aug 2017 01:00	Boca Chica	United States	0.7
	26 Aug 2017 01:00	Kopernik Shores	United States	0.7
	26 Aug 2017 06:00	Nadeau	United States	0.7
	26 Aug 2017 06:00	Texas City Junction	United States	0.7
	26 Aug 2017 06:00	Bayou Vista	United States	0.7
	26 Aug 2017 06:00	Texas City	United States	0.7
	26 Aug 2017 05:00	Anderson Ways	United States	0.7
	26 Aug 2017 06:00	Virginia Point	United States	0.7
	26 Aug 2017 06:00	Port Bolivar	United States	0.7
	26 Aug 2017 06:00	Fort Travis	United States	0.7
	26 Aug 2017 06:00	Flake	United States	0.7
	26 Aug 2017 06:00	Elmgrove	United States	0.7
	26 Aug 2017 06:00	Crystal Beach	United States	0.7
	26 Aug 2017 13:00	Flour Bluff	United States	0.7
	25 Aug 2017 23:00	South Padre Island	United States	0.7
	26 Aug 2017 06:00	Bolivar Peninsula	United States	0.7
	26 Aug 2017 18:00	Matagorda	United States	0.6
	26 Aug 2017 12:00	Chinquapin	United States	0.6
	26 Aug 2017 10:00	Patton	United States	0.6
	26 Aug 2017 04:00	High Island	United States	0.6
	26 Aug 2017 09:00	Intracoastal City	United States	0.6
	26 Aug 2017 07:00	Hoskins	United States	0.6
	26 Aug 2017 07:00	Valasco Heights	United States	0.6
	26 Aug 2017 07:00	Freeport	United States	0.6
	26 Aug 2017 07:00	Mims	United States	0.6
	26 Aug 2017 07:00	Hoskins	United States	0.6
	26 Aug 2017 07:00	Port Morris	United States	0.6
	26 Aug 2017 09:00	Red Fish Cove	United States	0.6
	26 Aug 2017 05:00	Caplen	United States	0.6
	26 Aug 2017 05:00	Gilchrist	United States	0.6
	26 Aug 2017 04:00	Johnson's Bayou	United States	0.6
	26 Aug 2017 04:00	Constance Beach	United States	0.6
	26 Aug 2017 04:00	Peveto Beach	United States	0.6
	26 Aug 2017 04:00	Holly Beach	United States	0.6
	26 Aug 2017 15:00	Grand Chenier	United States	0.6
	26 Aug 2017 06:00	Quintana	United States	0.5
	26 Aug 2017 06:00	Surfside	United States	0.5
	26 Aug 2017 06:00	Surfside Beach	United States	0.5
	26 Aug 2017 07:00	Jamaica Beach	United States	0.5
	26 Aug 2017 10:00	Bay Harbor	United States	0.5
	26 Aug 2017 11:00	Sea Isle	United States	0.5
	26 Aug 2017 04:00	Cameron	United States	0.5
	26 Aug 2017 08:00	Gulf Park	United States	0.5
	26 Aug 2017 04:00	Galveston	United States	0.5
	26 Aug 2017 09:00	Cheniere Au Tigre	United States	0.5
	26 Aug 2017 07:00	Yarborough	United States	0.5
	26 Aug 2017 07:00	Bryan Beach	United States	0.5
	26 Aug 2017 04:00	Oak Grove	United States	0.5
	25 Aug 2017 22:00	Holly Beach	United States	0.4
	25 Aug 2017 22:00	Laguna Vista	United States	0.4
	25 Aug 2017 22:00	Laguna Heights	United States	0.4
	25 Aug 2017 22:00	Port Isabel	United States	0.4
	25 Aug 2017 19:00	Fraccionamiento Nuevo Leon	Mexico	0.2
	26 Aug 2017 04:00	Port Fourchon	United States	0.2
	25 Aug 2017 05:00	Balantanche	Mexico	0.2
	25 Aug 2017 08:00	Celestum	Mexico	0.2
	26 Aug 2017 02:00	Gulf Park Estates	United States	0.1
	25 Aug 2017 15:00	Sisal	Mexico	0.1
	26 Aug 2017 12:00	El Mezquital	Mexico	0.1
	25 Aug 2017 07:00	Haltunchen	Mexico	0.1
	25 Aug 2017 07:00	Seybaplaya	Mexico	0.1
	25 Aug 2017 07:00	Champoton	Mexico	0.1
	26 Aug 2017 02:00	Hilda	United States	0.1
	26 Aug 2017 02:00	Gautier	United States	0.1
	25 Aug 2017 07:00	Hoquel	Mexico	0.1
	26 Aug 2017 02:00	Pascagoula	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.