Overall Red Tropical Cyclone alert for IRMA-17 in United States, Bahamas, Cuba, Turks and Caicos Islands, Dominican Republic, Puerto Rico, Virgin Islands, U.S., British, Anguilla, Saint Kitts and Nevis, Antigua and Barbuda, Guadeloupe, Montserrat, from 30 Aug 2017 15:00 UTC to 03 Sep 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 Red alert Tropical Cyclone for IRMA-17

in United States, Bahamas, Cuba, Turks and Caicos Islands, Dominican Republic, Puerto Rico, Virgin Islands, U.S., British, Anguilla, Saint Kitts and Nevis, Antigua and Barbuda, Guadeloupe, Montserrat,

03 Sep 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 IRMA-17 can have a high humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source	GDACS
Exposed countries	United States, Bahamas, Cuba, Turks and Caicos Islands, Dominican Republic, Puerto Rico, Virgin Islands, U.S., British, Anguilla, Saint Kitts and Nevis, Antigua and Barbuda, Guadeloupe, Montserrat,
Exposed population	16.4 million in Category 1 or higher
Maximum wind speed	296 km/h
Maximum storm surge	0.5 m (06 Sep 23:00 UTC)
Vulnerability	Medium (Anguilla)

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	213 km/h	0.5 m	n.a.	2.5
Overall	296 km/h	0.5 m	n.a.	2.5
Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track) based on GDACS impact

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Wind

213 km/h Current Max.

Up to 6600 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	30 Aug 2017 15:00	148	No people	No people
2	30 Aug 2017 21:00	167	No people	No people
3	31 Aug 2017 03:00	194	No people	No people
4	31 Aug 2017 09:00	194	No people	No people
5	31 Aug 2017 15:00	213	No people	No people
6	31 Aug 2017 21:00	222	No people	No people
7	01 Sep 2017 03:00	222	No people	No people
8	01 Sep 2017 09:00	222	No people	No people
9	01 Sep 2017 15:00	204	20 thousand	No people	Guadeloupe, Antigua and Barbuda
10	01 Sep 2017 21:00	213	220 thousand	No people	Antigua and Barbuda, Saint Kitts and Nevis, Anguilla
11	02 Sep 2017 03:00	213	50 thousand	No people	Antigua and Barbuda, Anguilla
12	02 Sep 2017 09:00	213	330 thousand	No people	Antigua and Barbuda, Saint Kitts and Nevis, Anguilla, Virgin Islands, British, Virgin Islands, U.S.
13	02 Sep 2017 15:00	213	230 thousand	No people	Antigua and Barbuda, Saint Kitts and Nevis, Anguilla, Virgin Islands, British
14	02 Sep 2017 21:00	213	2.2 million	No people	Guadeloupe, Antigua and Barbuda, Montserrat, Saint Kitts and Nevis, Anguilla, Virgin Islands, British, Virgin Islands, U.S., Puerto Rico
15	03 Sep 2017 03:00	213	3.9 million	No people	Guadeloupe, Antigua and Barbuda, Montserrat, Saint Kitts and Nevis, Anguilla, Virgin Islands, British, Virgin Islands, U.S., Puerto Rico, Turks and Caicos Islands
16	03 Sep 2017 09:00	222	5.1 million	5 thousand	Antigua and Barbuda, Anguilla
17	03 Sep 2017 15:00	222	7.6 million	20 thousand	Antigua and Barbuda, Anguilla, Turks and Caicos Islands
18	03 Sep 2017 21:00	213	12.2 million	7 thousand	Turks and Caicos Islands, Bahamas

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	30 Aug 2017 15:00	Tropical storm	83	no people	no people	16.4, -30.3
2	30 Aug 2017 21:00	Tropical storm	93	no people	no people	16.4, -31.2
3	31 Aug 2017 03:00	Tropical storm	102	no people	no people	16.4, -32.2
4	31 Aug 2017 09:00	Tropical storm	111	no people	no people	16.5, -32.9
5	31 Aug 2017 15:00	Category 2	157	no people	no people	16.9, -33.8
6	31 Aug 2017 21:00	Category 3	185	no people	no people	17.3, -34.8
7	01 Sep 2017 03:00	Category 3	185	no people	no people	17.8, -35.6
8	01 Sep 2017 09:00	Category 3	185	no people	no people	18.2, -36.5
9	01 Sep 2017 15:00	Category 2	176	no people	no people	18.5, -37.8
10	01 Sep 2017 21:00	Category 3	194	no people	no people	18.8, -39.1
11	02 Sep 2017 03:00	Category 3	185	no people	no people	19.1, -40.5
12	02 Sep 2017 09:00	Category 2	176	no people	no people	19, -41.8
13	02 Sep 2017 15:00	Category 2	176	no people	no people	18.8, -43.3
14	02 Sep 2017 21:00	Category 2	176	no people	no people	18.5, -44.6
15	03 Sep 2017 03:00	Category 2	176	no people	no people	18.3, -46.2
16	03 Sep 2017 09:00	Category 3	185	no people	no people	18, -47.5
17	03 Sep 2017 15:00	Category 3	185	no people	no people	17.7, -48.4
18	03 Sep 2017 21:00	Category 3	185	no people	no people	17.6, -49.8
18	04 Sep 2017 06:00	Category 3	194	no people	no people	17.2, -51.4
18	04 Sep 2017 18:00	Category 3	204	no people	no people	16.8, -53.5
18	05 Sep 2017 06:00	Category 4	213	no people	no people	16.8, -55.8
18	05 Sep 2017 18:00	Category 4	222	no people	3.1 million people	17.3, -58.2	Montserrat
18	06 Sep 2017 18:00	Category 4	222	no people	9.2 million people	19.1, -63.5	Montserrat
18	07 Sep 2017 18:00	Category 4	213	6600 people	7.7 million people	21.2, -68.8	Turks and Caicos Islands
18	08 Sep 2017 18:00	Category 4	213	no people	no people	23, -73.5	Bahamas

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
Turks & Caicos Is.
The Bahamas

Provinces

Region Province	Country
Turks & Caicos Is.	Turks and Caicos Islands
Bahamas	Bahamas

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)
Middle Caicos	MDS	unknown				0
North Caicos	NCA	8				0
Mayaguana	MYG	3	Civ.	Paved	No	7700

Ports

Name	LOCODE	Country
Mayaguana		The Bahamas

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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 The Settlement, British Virgin Islands. This height is estimated for 06 Sep 2017 23:00 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 (85 locations). Calculation based on advisory number 18 of 03 Sep 2017 21:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert	Date (UTC)	Name	Country	Storm surge height (m)
	06 Sep 2017 23:00	The Settlement	British Virgin Islands	0.5
	06 Sep 2017 19:00	Annaberg	Virgin Islands	0.2
	06 Sep 2017 19:00	Bordeaux	Virgin Islands	0.2
	06 Sep 2017 19:00	Calabash Boom	Virgin Islands	0.2
	06 Sep 2017 19:00	Hermitage	Virgin Islands	0.2
	06 Sep 2017 19:00	East End	Virgin Islands	0.2
	06 Sep 2017 21:00	Road Town	British Virgin Islands	0.2
	06 Sep 2017 23:00	Belle Vue	British Virgin Islands	0.2
	06 Sep 2017 20:00	Spanish Town	British Virgin Islands	0.2
	06 Sep 2017 12:00	Codrington	Antigua and Barbuda	0.2
	06 Sep 2017 21:00	Contant	Virgin Islands	0.2
	06 Sep 2017 21:00	Adrian	Virgin Islands	0.2
	06 Sep 2017 21:00	Fish Bay	Virgin Islands	0.2
	06 Sep 2017 21:00	Pacham Town	British Virgin Islands	0.2
	06 Sep 2017 07:00	Barnes Hill	Antigua and Barbuda	0.2
	07 Sep 2017 02:00	El Morro	Puerto Rico	0.2
	07 Sep 2017 02:00	Vietnam	Puerto Rico	0.2
	07 Sep 2017 02:00	Puerta de Tierra	Puerto Rico	0.2
	07 Sep 2017 02:00	Condado	Puerto Rico	0.2
	07 Sep 2017 15:00	El Valle	Dominican Republic	0.2
	06 Sep 2017 16:00	The Valley	Anguilla	0.1
	07 Sep 2017 02:00	Catano	Puerto Rico	0.1
	06 Sep 2017 09:00	Five Islands	Antigua and Barbuda	0.1
	06 Sep 2017 08:00	Jolly Harbour	Antigua and Barbuda	0.1
	06 Sep 2017 08:00	Bolans	Antigua and Barbuda	0.1
	06 Sep 2017 08:00	Jennings	Antigua and Barbuda	0.1
	06 Sep 2017 09:00	Runaway Bay	Antigua and Barbuda	0.1
	06 Sep 2017 09:00	Dickenson Bay	Antigua and Barbuda	0.1
	06 Sep 2017 09:00	Saint John's	Antigua and Barbuda	0.1
	06 Sep 2017 09:00	Boons Bay	Antigua and Barbuda	0.1
	06 Sep 2017 09:00	Cedar Grove	Antigua and Barbuda	0.1
	07 Sep 2017 01:00	Palo Seco	Puerto Rico	0.1
	07 Sep 2017 20:00	Port-au-Prince	Haiti	0.1
	06 Sep 2017 07:00	Ebenezer	Antigua and Barbuda	0.1
	06 Sep 2017 07:00	Creekside	Antigua and Barbuda	0.1
	06 Sep 2017 07:00	Golden Grove	Antigua and Barbuda	0.1
	06 Sep 2017 07:00	Saint Johnston Village	Antigua and Barbuda	0.1
	06 Sep 2017 07:00	Potters Village	Antigua and Barbuda	0.1
	06 Sep 2017 07:00	Osbourn	Antigua and Barbuda	0.1
	06 Sep 2017 23:00	Cabritaberg	Virgin Islands	0.1
	06 Sep 2017 21:00	Barrett	Virgin Islands	0.1
	06 Sep 2017 21:00	Charlotte Amalie	Virgin Islands	0.1
	06 Sep 2017 21:00	Enighed	Virgin Islands	0.1
	06 Sep 2017 21:00	Mandal	Virgin Islands	0.1
	06 Sep 2017 21:00	Donoe	Virgin Islands	0.1
	07 Sep 2017 00:00	Benner	Virgin Islands	0.1
	07 Sep 2017 05:00	Campo Alegre	Puerto Rico	0.1
	07 Sep 2017 05:00	Coto Norte	Puerto Rico	0.1
	07 Sep 2017 05:00	Sandin	Puerto Rico	0.1
	07 Sep 2017 05:00	Los Naranjos	Puerto Rico	0.1
	06 Sep 2017 07:00	Urlings	Antigua and Barbuda	0.1
	06 Sep 2017 07:00	Falmouth Harbour	Antigua and Barbuda	0.1
	06 Sep 2017 07:00	Cobbs Cross	Antigua and Barbuda	0.1
	06 Sep 2017 07:00	English Harbour	Antigua and Barbuda	0.1
	06 Sep 2017 07:00	Pares	Antigua and Barbuda	0.1
	06 Sep 2017 07:00	Betty's Hope	Antigua and Barbuda	0.1
	06 Sep 2017 07:00	Newfield	Antigua and Barbuda	0.1
	06 Sep 2017 07:00	Half Moon Bay	Antigua and Barbuda	0.1
	06 Sep 2017 15:00	West End Village	Anguilla	0.1
	06 Sep 2017 15:00	Blowing Point	Anguilla	0.1
	06 Sep 2017 15:00	Grand Case	Guadeloupe	0.1
	06 Sep 2017 15:00	Anse Marcel	Guadeloupe	0.1
	06 Sep 2017 15:00	French Cul de Sac	Guadeloupe	0.1
	06 Sep 2017 23:00	Adelphi	Virgin Islands	0.1
	06 Sep 2017 23:00	Neltjeberg	Virgin Islands	0.1
	06 Sep 2017 08:00	John Hughes	Antigua and Barbuda	0.1
	06 Sep 2017 05:00	Willikies	Antigua and Barbuda	0.1
	06 Sep 2017 12:00	Gustavia	Guadeloupe	0.1
	07 Sep 2017 00:00	Bellevue	Virgin Islands	0.1
	07 Sep 2017 00:00	Bolongo	Virgin Islands	0.1
	06 Sep 2017 16:00	Lowlands	Netherlands Antilles	0.1
	06 Sep 2017 16:00	Sandy Ground	Guadeloupe	0.1
	06 Sep 2017 16:00	Marigot	Guadeloupe	0.1
	06 Sep 2017 16:00	Koolbaai	Netherlands Antilles	0.1
	06 Sep 2017 16:00	Concordia	Guadeloupe	0.1
	06 Sep 2017 16:00	St Louis	Guadeloupe	0.1
	06 Sep 2017 16:00	Fort Amsterdam	Netherlands Antilles	0.1
	06 Sep 2017 16:00	Dutch Cul de Sac	Netherlands Antilles	0.1
	06 Sep 2017 16:00	Colombier	Guadeloupe	0.1
	06 Sep 2017 16:00	Philipsburg	Netherlands Antilles	0.1
	06 Sep 2017 16:00	Orleans	Guadeloupe	0.1
	06 Sep 2017 16:00	Point Blanche	Netherlands Antilles	0.1
	06 Sep 2017 16:00	Green Cay	Guadeloupe	0.1
	07 Sep 2017 05:00	Tierras Nuevas Poniente	Puerto Rico	0.1
	07 Sep 2017 19:00	Magante	Dominican Republic	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.