Overall Green alert Tropical Cyclone for ISAAC-18
in Montserrat, Guadeloupe, Antigua and Barbuda, Dominica, Martinique, Saint Vincent and the Grenadines, Saint Lucia, Barbados

Event summary

Tropical Cyclone ISAAC-18 can have a low humanitarian impact based on the maximum sustained wind speed, exposed population and vulnerability.

GDACS ID TC 1000500
Name ISAAC-18
From - To 07 Sep - 15 Sep
Exposed countries Montserrat, Guadeloupe, Antigua and Barbuda, Dominica, Martinique, Saint Vincent and the Grenadines, Saint Lucia, Barbados
Exposed population No people in Category 1 or higher
Maximum wind speed 157 km/h Category 2
Maximum storm surge 0.2 m (13 Sep 17:00 UTC)
Vulnerability High (Montserrat)

GDACS Score

For more info on GDACS alert score click here.
Wind Storm surge Rainfall GDACS score
GDACS NOAA 56 km/h 0.2 m n.a. 0.5
Single TC: maximum expected impact (wind, storm surge, rainfall)
HWRF n.a n.a. n.a. n.a.
GFS n.a n.a. n.a. n.a.
ECMWF n.a n.a. n.a. n.a.
Maximum expected impact (wind, storm surge and rainfall) using different data sources.
Virtual OSOCC
Meteo assessment
Satellite products
Analytical products
Detailed event map. European Union, 2024. Map produced by EC-JRC.
The boundaries and the names shown on this map do not imply official endorsement or acceptance by the European Union.

Updates on volcanic activity (Smithsonian)

Latest media headlines

One year later, UNDP says it is 9/19/2018 7:58:00 AM.

BRIDGETOWN, Barbados (CMC) – One year after Hurricanes Irma and Maria tore through the Lesser Antilles leaving behind a trail of death and destruction, the United Nations Development Programme (UNDP) says it has helped mobilise US$25 millio
...(more)
ONLINE READERS COMMENT: Who cares about the forecast anyway? 9/18/2018 4:23:00 PM.

Dear Editor, I find it very interesting the way many of our people think, and how much interest is shown in the weather and preparedness for severe weather conditions. As I write this letter seated in my living room at home with the sound o
...(more)
Isaac remnants to drench Cayman 9/18/2018 7:27:00 AM.

The remnants of Isaac are forecast to bring showers and thunder to Cayman beginning, with heavy showers expected Tuesday. The remnants of Tropical Storm Isaac are expected to drench the Cayman Islands over the next two days, with the rai
...(more)
Remnants of Isaac unlikely to re-form: National Hurricane Center 9/18/2018 2:51:00 AM.

The remnants of what was once Tropical Storm Isaac are not expected to re-form into another tropical system, the National Hurricane Center reported Monday evening (Sept. 17). What's left of Isaac is composed of disorganized showers and
...(more)

View more news

Estimated casualties (PAGER)

USGS estimates the number of casualties for each earthquake for the Prompt Assessment of Global Earthquakes for Response (PAGER) product.
The graph shows the current fatalities estimate.

Exposed population

Data, images, links, services and documents

For this events, GDACS has links to information from the following sources: EC-JRC (38), (2), INFORM (2),