Alert | N° | Date (UTC) | Max Rainfall (mm) | Pop >100mm or higher | 50-100 | 100-250 | 250-500 | 500-750 | 750-1000 | >1000 | Countries |
| 1 | 11 Sep 2020 00:00 | 151 | 120 thousand | | | - | - | - | - | United States, Mexico, Guatemala |
| 2 | 11 Sep 2020 12:00 | 59 | - | | - | - | - | - | - | The Bahamas |
| 3 | 12 Sep 2020 00:00 | 192 | 2 thousand | | | - | - | - | - | United States, The Bahamas, Guatemala, Mexico, Honduras, El Salvador, Nicaragua |
| 4 | 12 Sep 2020 12:00 | 180 | 6 thousand | | | - | - | - | - | United States, Guatemala, Honduras |
| 5 | 13 Sep 2020 00:00 | 124 | 10 thousand | | | - | - | - | - | United States, Belize, Honduras |
| 6 | 13 Sep 2020 12:00 | 176 | 720 thousand | | | - | - | - | - | United States, Mexico, Guatemala, Honduras |
| 7 | 14 Sep 2020 00:00 | 249 | 30 thousand | | | - | - | - | - | United States, Mexico, Guatemala, Honduras |
| 8 | 14 Sep 2020 12:00 | 312 | - | | - | - | - | - | - | United States, Mexico, Guatemala, Honduras |
| 9 | 15 Sep 2020 00:00 | 172 | - | | - | - | - | - | - | United States, Mexico, Guatemala |
| 10 | 15 Sep 2020 12:00 | 220 | 70 thousand | | | - | - | - | - | United States |
| 11 | 16 Sep 2020 00:00 | 398 | 1.2 million | | | | - | - | - | United States, Guatemala, Mexico |
| 12 | 16 Sep 2020 12:00 | 238 | 920 thousand | | | - | - | - | - | United States, Dominican Republic, Haiti |
| 13 | 17 Sep 2020 00:00 | 246 | 2.6 million | | | - | - | - | - | United States, Nicaragua |
| 14 | 17 Sep 2020 12:00 | 173 | 600 thousand | | | - | - | - | - | United States, Guatemala |
| 15 | 18 Sep 2020 00:00 | 528 | 500 thousand | | | - | - | - | - | United States, Mexico, Guatemala, Honduras, El Salvador, Nicaragua |