Atlantic 2021 season
Hurricane Sam (2021)
Hurricane Sam was a Category 4 hurricane at its peak, with maximum sustained winds of 155 mph (135 kt) and a minimum central pressure of 927 mb. It was active from Sep 22, 2021 to Oct 7, 2021.
Storm facts
| Peak status | Hurricane — Category 4 |
|---|---|
| Max sustained winds | 135 kt / 155 mph / 250 km/h |
| Minimum central pressure | 927 mb |
| Active dates | Sep 22, 2021 – Oct 7, 2021 |
| Accumulated cyclone energy (ACE) | 54 |
| Documented landfalls | 0 |
Every value on this page is taken directly from the NHC HURDAT2 best-track record for Sam 2021. Nothing is estimated. The best-track table below shows one entry per day at 00:00 UTC; the full six-hourly record lives in the HURDAT2 database.
Best-track table (daily, 00:00 UTC)
| Date | Status | Max winds | Position |
|---|---|---|---|
| Sep 23, 2021 | Tropical depression | 30 kt (56 km/h) | 10.2N 34.4W |
| Sep 24, 2021 | Tropical storm | 60 kt (111 km/h) | 11.1N 40.3W |
| Sep 25, 2021 | Hurricane | 85 kt (157 km/h) | 12.3N 45.4W |
| Sep 26, 2021 | Hurricane | 130 kt (241 km/h) | 13.4N 48.8W |
| Sep 27, 2021 | Hurricane | 130 kt (241 km/h) | 14.5N 50.6W |
| Sep 28, 2021 | Hurricane | 105 kt (194 km/h) | 16.5N 52.9W |
| Sep 29, 2021 | Hurricane | 115 kt (213 km/h) | 18.1N 55.3W |
| Sep 30, 2021 | Hurricane | 125 kt (232 km/h) | 20.3N 58.0W |
| Oct 1, 2021 | Hurricane | 125 kt (232 km/h) | 24.3N 61.0W |
| Oct 2, 2021 | Hurricane | 125 kt (232 km/h) | 30.8N 61.5W |
| Oct 3, 2021 | Hurricane | 100 kt (185 km/h) | 35.8N 57.9W |
| Oct 4, 2021 | Hurricane | 90 kt (167 km/h) | 38.7N 52.2W |
| Oct 5, 2021 | Hurricane | 75 kt (139 km/h) | 46.5N 40.5W |
| Oct 6, 2021 | Extratropical | 60 kt (111 km/h) | 49.9N 38.9W |
| Oct 7, 2021 | Extratropical | 45 kt (83 km/h) | 55.2N 25.4W |
Read this like a pro
Wind speeds above are in knots, the unit NHC uses in HURDAT2. For what a Category 4 wind field actually does, see hurricane categories explained; for why the wind number alone never tells the danger story, see storm surge vs. flooding.