Alert | N° | Date (UTC) | Max Winds (km/h) | Population in Tropical Storm or higher | Population in Cat 1. or higher | Countries |
| 1 | 13 Aug 2021 15:00 | 83 | 18.8 million | No people | Guadeloupe, Antigua and Barbuda, Montserrat, Saint Kitts and Nevis, Virgin Islands U.S., Puerto Rico, Dominican Republic, Haiti, Bahamas, Cuba |
| 2 | 13 Aug 2021 21:00 | 74 | 20.4 million | No people | Guadeloupe, Antigua and Barbuda, Montserrat, Saint Kitts and Nevis, Virgin Islands U.S., Puerto Rico, Dominican Republic, Haiti, Bahamas, Cuba |
| 3 | 14 Aug 2021 03:00 | 83 | 8.4 million | No people | Guadeloupe, Antigua and Barbuda, Montserrat, Saint Kitts and Nevis, Virgin Islands British, Virgin Islands U.S., Puerto Rico, Dominican Republic, Haiti, Bahamas |
| 4 | 14 Aug 2021 09:00 | 83 | 14.8 million | No people | Guadeloupe, Antigua and Barbuda, Montserrat, Saint Kitts and Nevis, Virgin Islands U.S., Puerto Rico, Dominican Republic, Haiti, Bahamas |
| 5 | 14 Aug 2021 15:00 | 93 | 29.8 million | No people | Guadeloupe, Antigua and Barbuda, Montserrat, Saint Kitts and Nevis, Virgin Islands British, Virgin Islands U.S., Puerto Rico, Dominican Republic, Haiti, Bahamas, Cuba, United States |
| 6 | 14 Aug 2021 21:00 | 93 | 31.7 million | No people | Guadeloupe, Dominica, Montserrat, Puerto Rico, Dominican Republic, Haiti, Cuba, United States |
| 7 | 15 Aug 2021 03:00 | 83 | 28.8 million | No people | Montserrat, Saint Kitts and Nevis, Antigua and Barbuda, Guadeloupe, Virgin Islands U.S., Puerto Rico, Dominican Republic, Haiti, Bahamas, Cuba, United States |
| 8 | 15 Aug 2021 09:00 | 83 | 31.3 million | No people | Saint Kitts and Nevis, Puerto Rico, Montserrat, Antigua and Barbuda, Guadeloupe, Dominican Republic, Haiti, Bahamas, Cuba, United States |
| 9 | 15 Aug 2021 15:00 | 83 | 24.1 million | No people | Puerto Rico, Dominican Republic, Saint Kitts and Nevis, Montserrat, Antigua and Barbuda, Guadeloupe, Haiti, Bahamas, Cuba, United States |
| 10 | 15 Aug 2021 21:00 | 83 | 450 thousand | No people | Saint Kitts and Nevis, Montserrat, Antigua and Barbuda, Guadeloupe |
| 11 | 16 Aug 2021 03:00 | 83 | 450 thousand | No people | Saint Kitts and Nevis, Montserrat, Antigua and Barbuda, Guadeloupe |
| 12 | 16 Aug 2021 09:00 | 93 | 9.1 million | No people | Cuba, Jamaica, Saint Kitts and Nevis, Montserrat, Antigua and Barbuda, Guadeloupe, Cayman Islands, Mexico |
| 13 | 16 Aug 2021 15:00 | 111 | 13.9 million | No people | Cuba, Jamaica, Saint Kitts and Nevis, Montserrat, Antigua and Barbuda, Guadeloupe, Cayman Islands, Mexico |
| 14 | 16 Aug 2021 21:00 | 120 | 15.5 million | No people | Cuba, Jamaica, Cayman Islands, Saint Kitts and Nevis, Montserrat, Antigua and Barbuda, Guadeloupe, Mexico |
| 15 | 17 Aug 2021 03:00 | 120 | 14.5 million | No people | Jamaica, Cuba, Cayman Islands, Saint Kitts and Nevis, Montserrat, Antigua and Barbuda, Guadeloupe, Mexico |
| 16 | 17 Aug 2021 09:00 | 111 | 18.8 million | No people | Jamaica, Cayman Islands, Mexico, Saint Kitts and Nevis, Montserrat, Antigua and Barbuda, Guadeloupe |
| 17 | 17 Aug 2021 15:00 | 120 | 38 million | 400 thousand | Mexico |
| 18 | 17 Aug 2021 21:00 | 139 | 29.9 million | 340 thousand | Mexico |
| 19 | 18 Aug 2021 03:00 | 148 | 36.4 million | 390 thousand | Mexico |