Alert | N° | Date (UTC) | Max Winds (km/h) | Population in Tropical Storm or higher | Population in Cat 1. or higher | Countries |
| 1 | 07 Sep 2018 21:00 | 139 | No people | No people | |
| 2 | 08 Sep 2018 03:00 | 157 | No people | No people | |
| 3 | 08 Sep 2018 09:00 | 148 | No people | No people | |
| 4 | 08 Sep 2018 15:00 | 148 | 520 thousand | No people | Barbados, Martinique, Saint Lucia |
| 5 | 08 Sep 2018 21:00 | 139 | 600 thousand | 120 thousand | Martinique |
| 6 | 09 Sep 2018 03:00 | 157 | 740 thousand | 200 thousand | Martinique |
| 7 | 09 Sep 2018 09:00 | 157 | 660 thousand | 40 thousand | Martinique, Dominica |
| 8 | 09 Sep 2018 15:00 | 157 | 650 thousand | 390 thousand | Martinique |
| 9 | 09 Sep 2018 21:00 | 157 | 980 thousand | 70 thousand | Dominica |
| 10 | 10 Sep 2018 03:00 | 157 | 890 thousand | 70 thousand | Dominica |
| 11 | 10 Sep 2018 09:00 | 148 | 890 thousand | 70 thousand | Dominica |
| 12 | 10 Sep 2018 15:00 | 139 | 890 thousand | 70 thousand | Dominica |
| 13 | 10 Sep 2018 21:00 | 139 | 930 thousand | 70 thousand | Dominica |
| 14 | 11 Sep 2018 03:00 | 120 | 980 thousand | 60 thousand | Dominica |
| 15 | 11 Sep 2018 09:00 | 120 | 920 thousand | No people | Martinique, Saint Lucia, Guadeloupe, Dominica, Montserrat |
| 16 | 11 Sep 2018 15:00 | 120 | 1 million | No people | Martinique, Saint Lucia, Guadeloupe, Dominica |
| 17 | 11 Sep 2018 21:00 | 111 | 1 million | No people | Martinique, Saint Lucia, Guadeloupe, Dominica |
| 18 | 12 Sep 2018 03:00 | 102 | 820 thousand | No people | Martinique, Saint Lucia, Dominica, Guadeloupe |
| 19 | 12 Sep 2018 09:00 | 93 | 1 million | No people | Martinique, Saint Lucia, Dominica, Guadeloupe |
| 20 | 12 Sep 2018 15:00 | 93 | 1000 thousand | No people | Martinique, Saint Lucia, Guadeloupe, Dominica |
| 21 | 12 Sep 2018 21:00 | 93 | 1.2 million | No people | Martinique, Guadeloupe, Dominica, Antigua and Barbuda, Montserrat, Jamaica |
| 22 | 13 Sep 2018 03:00 | 83 | 1.2 million | No people | Barbados, Martinique, Saint Lucia, Guadeloupe, Dominica, Antigua and Barbuda, Montserrat |
| 23 | 13 Sep 2018 09:00 | 74 | 1.5 million | No people | Martinique, Dominica, Guadeloupe, Saint Lucia, Barbados, Saint Vincent and the Grenadines, Antigua and Barbuda, Montserrat, Saint Kitts and Nevis |
| 24 | 13 Sep 2018 15:00 | 74 | 1.5 million | No people | Dominica, Martinique, Guadeloupe, Saint Lucia, Saint Vincent and the Grenadines, Montserrat, Antigua and Barbuda, Barbados |
| 25 | 13 Sep 2018 21:00 | 65 | 1.5 million | No people | Dominica, Guadeloupe, Martinique, Montserrat, Saint Lucia, Saint Vincent and the Grenadines, Antigua and Barbuda, Barbados |
| 26 | 14 Sep 2018 03:00 | 65 | 1.5 million | No people | Montserrat, Guadeloupe, Dominica, Martinique, Antigua and Barbuda, Saint Lucia, Saint Vincent and the Grenadines, Barbados |
| 27 | 14 Sep 2018 09:00 | 56 | 1.5 million | No people | Montserrat, Guadeloupe, Dominica, Antigua and Barbuda, Martinique, Saint Lucia, Saint Vincent and the Grenadines, Barbados |
| 28 | 14 Sep 2018 15:00 | 56 | 1.5 million | No people | Montserrat, Guadeloupe, Antigua and Barbuda, Dominica, Martinique, Saint Vincent and the Grenadines, Saint Lucia, Barbados |