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,

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 0.7 m (06 Sep 22:00 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 222 km/h 0.7 m n.a. 2.5
Overall 296 km/h 0.7 m n.a. 2.5

Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track) based on GDACS impact

Wind

222 km/h Current Max.

Up to 82000 people in Category 1 strength or higher (see SSHS)

Impact Timeline

Alert Date (UTC) Max Winds (km/h) Population in
Tropical Storm or higher
Population in
Cat 1. or higher
Countries
Green 1 30 Aug 2017 15:00 148 No people No people
Green 2 30 Aug 2017 21:00 167 No people No people
Green 3 31 Aug 2017 03:00 194 No people No people
Green 4 31 Aug 2017 09:00 194 No people No people
Green 5 31 Aug 2017 15:00 213 No people No people
Green 6 31 Aug 2017 21:00 222 No people No people
Green 7 01 Sep 2017 03:00 222 No people No people
Green 8 01 Sep 2017 09:00 222 No people No people
Green 9 01 Sep 2017 15:00 204 20 thousand No people Guadeloupe, Antigua and Barbuda
Green 10 01 Sep 2017 21:00 213 220 thousand No people Antigua and Barbuda, Saint Kitts and Nevis, Anguilla
Green 11 02 Sep 2017 03:00 213 50 thousand No people Antigua and Barbuda, Anguilla
Green 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.
Green 13 02 Sep 2017 15:00 213 230 thousand No people Antigua and Barbuda, Saint Kitts and Nevis, Anguilla, Virgin Islands, British
Green 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
Green 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
Red 16 03 Sep 2017 09:00 222 5.1 million 5 thousand Antigua and Barbuda, Anguilla
Red 17 03 Sep 2017 15:00 222 7.6 million 20 thousand Antigua and Barbuda, Anguilla, Turks and Caicos Islands
Red 18 03 Sep 2017 21:00 213 12.2 million 7 thousand Turks and Caicos Islands, Bahamas
Red 19 04 Sep 2017 03:00 222 20.3 million 80 thousand Antigua and Barbuda, Anguilla, Turks and Caicos Islands, Bahamas

Bulletin Timeline

Alert Date (UTC) Category
(SSHS)
Max winds
(km/h)
Population in
Cat.1 or higher
Population in
Tropical Storm
or higher
Location (lat, lon) Countries
GREEN
1 30 Aug 2017 15:00 Tropical storm 83 no people no people 16.4, -30.3
GREEN
2 30 Aug 2017 21:00 Tropical storm 93 no people no people 16.4, -31.2
GREEN
3 31 Aug 2017 03:00 Tropical storm 102 no people no people 16.4, -32.2
GREEN
4 31 Aug 2017 09:00 Tropical storm 111 no people no people 16.5, -32.9
GREEN
5 31 Aug 2017 15:00 Category 2 157 no people no people 16.9, -33.8
GREEN
6 31 Aug 2017 21:00 Category 3 185 no people no people 17.3, -34.8
GREEN
7 01 Sep 2017 03:00 Category 3 185 no people no people 17.8, -35.6
GREEN
8 01 Sep 2017 09:00 Category 3 185 no people no people 18.2, -36.5
GREEN
9 01 Sep 2017 15:00 Category 2 176 no people no people 18.5, -37.8
GREEN
10 01 Sep 2017 21:00 Category 3 194 no people no people 18.8, -39.1
GREEN
11 02 Sep 2017 03:00 Category 3 185 no people no people 19.1, -40.5
GREEN
12 02 Sep 2017 09:00 Category 2 176 no people no people 19, -41.8
GREEN
13 02 Sep 2017 15:00 Category 2 176 no people no people 18.8, -43.3
GREEN
14 02 Sep 2017 21:00 Category 2 176 no people no people 18.5, -44.6
GREEN
15 03 Sep 2017 03:00 Category 2 176 no people no people 18.3, -46.2
GREEN
16 03 Sep 2017 09:00 Category 3 185 no people no people 18, -47.5
GREEN
17 03 Sep 2017 15:00 Category 3 185 no people no people 17.7, -48.4
GREEN
18 03 Sep 2017 21:00 Category 3 185 no people no people 17.6, -49.8
GREEN
19 04 Sep 2017 03:00 Category 3 185 no people no people 17.2, -51
GREEN
19 04 Sep 2017 12:00 Category 3 194 no people no people 16.7, -52.6
GREEN
19 05 Sep 2017 00:00 Category 3 204 no people no people 16.5, -54.8
GREEN
19 05 Sep 2017 12:00 Category 4 213 no people 440000 people 16.8, -57.1 Antigua and Barbuda
RED
19 06 Sep 2017 00:00 Category 4 222 38000 people 4.5 million people 17.4, -59.6 Anguilla
GREEN
19 07 Sep 2017 00:00 Category 4 222 no people 16 million people 19.3, -65 Haiti
RED
19 08 Sep 2017 00:00 Category 4 213 51000 people 14.9 million people 21.2, -70.2 Turks and Caicos Islands
GREEN
19 09 Sep 2017 00:00 Category 4 213 no people no people 22.8, -74.5 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
Antigua & Barbuda
Anguilla
Turks & Caicos Is.
The Bahamas

Provinces

Region Province Country
Antigua & Barbuda Antigua and Barbuda
Anguilla Anguilla
Turks & Caicos Is. Turks and Caicos Islands
Bahamas Bahamas

Populated places

Name Region Province Country City class Population
The Valley Anguilla Capital 1400 people
Cockburn Town Turks and Caicos Islands Capital <1000 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)
Grand Case CCE 2 Civ. Paved No 3900
Wallblake AXA 33 Civ. Paved Yes 3600
Anegada NGD unknown 0
Grand Turk International GDT 4 Civ. Paved Yes 6300
South Caicos XSC 2 0
Middle Caicos MDS unknown 0
North Caicos NCA 8 0
Providenciales PLS 8 0
Mayaguana MYG 3 Civ. Paved No 7700
Spring Point AXP 3 Civ. Paved No 5000
Colonel Hill CRI 2 Civ. Paved No 3500
Pitts Town PWN unknown 0

Ports

Name LOCODE Country
Barbuda AGBBQ Antigua and Barbuda
Blowing Point AIBLP Anguilla
Anegada Island British Virgin Islands
Grand Turk TCGDT Turks and Caicos Islands
Providenciales TCPLS Turks and Caicos Islands
Mayaguana The Bahamas
Crooked Island BSCRI The Bahamas

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.

...

StormSurge

0.7 m

The maximum Storm surge height is  0.7m in The Settlement, British Virgin Islands. This height is estimated for 06 Sep 2017 22:00 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 (122 locations). Calculation based on advisory number 19 of 04 Sep 2017 03:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert Date (UTC) Name Country Storm surge height (m)
06 Sep 2017 22:00 The Settlement British Virgin Islands  0.7
06 Sep 2017 15:00 The Valley Anguilla  0.3
06 Sep 2017 19:00 Annaberg Virgin Islands  0.3
06 Sep 2017 19:00 Bordeaux Virgin Islands  0.3
06 Sep 2017 19:00 Calabash Boom Virgin Islands  0.3
06 Sep 2017 19:00 Hermitage Virgin Islands  0.3
06 Sep 2017 19:00 East End Virgin Islands  0.3
06 Sep 2017 20:00 Road Town British Virgin Islands  0.3
08 Sep 2017 03:00 Cockburn Town Turks and Caicos Islands  0.3
06 Sep 2017 10:00 Codrington Antigua and Barbuda  0.2
06 Sep 2017 21:00 Belle Vue British Virgin Islands  0.2
06 Sep 2017 21:00 Spanish Town British Virgin Islands  0.2
06 Sep 2017 15:00 West End Village Anguilla  0.2
06 Sep 2017 15:00 Blowing Point Anguilla  0.2
06 Sep 2017 15:00 Grand Case Guadeloupe  0.2
06 Sep 2017 15:00 Anse Marcel Guadeloupe  0.2
06 Sep 2017 15:00 French Cul de Sac Guadeloupe  0.2
08 Sep 2017 03:00 Balfour Town Turks and Caicos Islands  0.2
06 Sep 2017 06:00 Barnes Hill Antigua and Barbuda  0.2
06 Sep 2017 20:00 Pacham Town British Virgin Islands  0.2
06 Sep 2017 08:00 Saint Johnston Village Antigua and Barbuda  0.2
06 Sep 2017 08:00 Potters Village Antigua and Barbuda  0.2
06 Sep 2017 08:00 Osbourn 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
08 Sep 2017 03:00 Monte Cristi Dominican Republic  0.2
06 Sep 2017 21:00 Fish Bay Virgin Islands  0.2
06 Sep 2017 08:00 Five Islands Antigua and Barbuda  0.2
06 Sep 2017 08:00 Jolly Harbour Antigua and Barbuda  0.2
06 Sep 2017 08:00 Bolans Antigua and Barbuda  0.2
06 Sep 2017 08:00 Jennings Antigua and Barbuda  0.2
06 Sep 2017 08:00 Ebenezer Antigua and Barbuda  0.2
06 Sep 2017 08:00 Runaway Bay Antigua and Barbuda  0.2
06 Sep 2017 08:00 Creekside Antigua and Barbuda  0.2
06 Sep 2017 09:00 Dickenson Bay Antigua and Barbuda  0.2
06 Sep 2017 08:00 Golden Grove Antigua and Barbuda  0.2
06 Sep 2017 08:00 Saint John's Antigua and Barbuda  0.2
06 Sep 2017 09:00 Boons Bay Antigua and Barbuda  0.2
06 Sep 2017 09:00 Cedar Grove Antigua and Barbuda  0.2
06 Sep 2017 07:00 Falmouth Harbour Antigua and Barbuda  0.2
06 Sep 2017 07:00 Cobbs Cross Antigua and Barbuda  0.2
06 Sep 2017 07:00 English Harbour Antigua and Barbuda  0.2
06 Sep 2017 07:00 Pares Antigua and Barbuda  0.2
06 Sep 2017 07:00 Betty's Hope Antigua and Barbuda  0.2
06 Sep 2017 07:00 Newfield Antigua and Barbuda  0.2
06 Sep 2017 07:00 Half Moon Bay Antigua and Barbuda  0.2
06 Sep 2017 13:00 Gustavia Guadeloupe  0.2
06 Sep 2017 15:00 Lowlands Netherlands Antilles  0.2
06 Sep 2017 15:00 Sandy Ground Guadeloupe  0.2
06 Sep 2017 15:00 Marigot Guadeloupe  0.2
06 Sep 2017 15:00 Koolbaai Netherlands Antilles  0.2
06 Sep 2017 15:00 Concordia Guadeloupe  0.2
06 Sep 2017 15:00 St Louis Guadeloupe  0.2
06 Sep 2017 15:00 Fort Amsterdam Netherlands Antilles  0.2
06 Sep 2017 15:00 Dutch Cul de Sac Netherlands Antilles  0.2
06 Sep 2017 15:00 Colombier Guadeloupe  0.2
06 Sep 2017 15:00 Philipsburg Netherlands Antilles  0.2
06 Sep 2017 15:00 Orleans Guadeloupe  0.2
06 Sep 2017 15:00 Point Blanche Netherlands Antilles  0.2
06 Sep 2017 15:00 Green Cay Guadeloupe  0.2
06 Sep 2017 08:00 Urlings Antigua and Barbuda  0.2
07 Sep 2017 15:00 El Valle Dominican Republic  0.2
07 Sep 2017 02:00 Catano Puerto Rico  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
06 Sep 2017 06:00 Willikies Antigua and Barbuda  0.1
06 Sep 2017 23:00 Adelphi Virgin Islands  0.1
06 Sep 2017 23:00 Cabritaberg Virgin Islands  0.1
06 Sep 2017 23:00 Charlotte Amalie Virgin Islands  0.1
06 Sep 2017 23:00 Enighed Virgin Islands  0.1
06 Sep 2017 23:00 Bellevue Virgin Islands  0.1
06 Sep 2017 23:00 Benner Virgin Islands  0.1
06 Sep 2017 20:00 Barrett Virgin Islands  0.1
06 Sep 2017 20:00 Mandal Virgin Islands  0.1
06 Sep 2017 20:00 Donoe Virgin Islands  0.1
08 Sep 2017 03:00 Cockburn Harbor Turks and Caicos Islands  0.1
07 Sep 2017 02:00 Palo Seco Puerto Rico  0.1
06 Sep 2017 08:00 John Hughes Antigua and Barbuda  0.1
07 Sep 2017 11:00 Belvedere Puerto Rico  0.1
07 Sep 2017 11:00 Cabo Rojo Puerto Rico  0.1
07 Sep 2017 11:00 Conde Avila Puerto Rico  0.1
07 Sep 2017 11:00 Delicias Puerto Rico  0.1
07 Sep 2017 11:00 Cornelia Puerto Rico  0.1
07 Sep 2017 11:00 Cerrillos Puerto Rico  0.1
07 Sep 2017 11:00 Guanajibo Castillo Puerto Rico  0.1
07 Sep 2017 23:00 Los Icacos Dominican Republic  0.1
07 Sep 2017 04:00 Campo Alegre Puerto Rico  0.1
07 Sep 2017 04:00 Coto Norte Puerto Rico  0.1
07 Sep 2017 04:00 Sandin Puerto Rico  0.1
07 Sep 2017 04:00 Los Naranjos Puerto Rico  0.1
07 Sep 2017 17:00 Mani Puerto Rico  0.1
07 Sep 2017 17:00 La Tosca Puerto Rico  0.1
07 Sep 2017 17:00 La Playa Puerto Rico  0.1
07 Sep 2017 17:00 Centro Calvache Puerto Rico  0.1
06 Sep 2017 23:00 Neltjeberg Virgin Islands  0.1
06 Sep 2017 23:00 Bolongo Virgin Islands  0.1
07 Sep 2017 07:00 Guaniquilla Puerto Rico  0.1
07 Sep 2017 11:00 Brisas de Mal Puerto Rico  0.1
07 Sep 2017 08:00 Malecon Puerto Rico  0.1
07 Sep 2017 11:00 Cuesta de las Piedras Puerto Rico  0.1
07 Sep 2017 08:00 Mayagnez Puerto Rico  0.1
06 Sep 2017 20:00 Isabel Segunda Puerto Rico  0.1
06 Sep 2017 20:00 Santa Maria Puerto Rico  0.1
06 Sep 2017 20:00 Vieques Puerto Rico  0.1
07 Sep 2017 07:00 El Combate Puerto Rico  0.1
07 Sep 2017 07:00 Pole Ojea Puerto Rico  0.1
07 Sep 2017 07:00 Boqueron Puerto Rico  0.1
08 Sep 2017 00:00 Port-au-Prince Haiti  0.1
07 Sep 2017 21:00 Magante Dominican Republic  0.1
08 Sep 2017 02:00 Cambronal Dominican Republic  0.1
06 Sep 2017 16:00 Windward Side Netherlands Antilles  0.1
07 Sep 2017 02:00 San Ildefonso Puerto Rico  0.1
07 Sep 2017 03:00 Culebra Puerto Rico  0.1
08 Sep 2017 03:00 Conch Bar Turks and Caicos Islands  0.1
08 Sep 2017 03:00 Lorimers Turks and Caicos Islands  0.1
06 Sep 2017 20:00 Hacienda Arcadia Puerto Rico  0.1
07 Sep 2017 04:00 Tierras Nuevas Poniente Puerto Rico  0.1
07 Sep 2017 11:00 La Soledad Puerto Rico  0.1
07 Sep 2017 11:00 Colonia Dolores Puerto Rico  0.1
07 Sep 2017 21:00 Rio San Juan Dominican Republic  0.1