2011 hurricane season
The 2011 Atlantic season produced 19 named storms, 7 hurricanes and 4 major hurricanes (Category 3 or stronger). The strongest was Katia, with peak winds of 140 mph (220 km/h). The eastern Pacific had 11 named storms and 10 hurricanes.
2011 Atlantic storms
- Named storms
- 19
- Hurricanes
- 7
- Major (Cat 3+)
- 4
- Strongest
- Katia, 140 mph
| Storm | Peak | Wind | Pressure | Dates |
|---|---|---|---|---|
| ArleneLF | TS | 65 mph | 993 mb | Jun 28-Jul 1 |
| Bret | TS | 70 mph | 995 mb | Jul 17-22 |
| Cindy | TS | 70 mph | 994 mb | Jul 20-22 |
| DonLF | TS | 50 mph | 997 mb | Jul 27-30 |
| Emily | TS | 50 mph | 1003 mb | Aug 2-7 |
| Franklin | TS | 45 mph | 1004 mb | Aug 12-13 |
| Gert | TS | 65 mph | 1000 mb | Aug 13-16 |
| HarveyLF | TS | 65 mph | 994 mb | Aug 19-22 |
| IreneLF | Cat 3 | 120 mph | 942 mb | Aug 21-28 |
| Jose | TS | 45 mph | 1006 mb | Aug 27-28 |
| Katia | Cat 4 | 140 mph | 942 mb | Aug 29-Sep 10 |
| Unnamed (AL20) | TS | 45 mph | 1002 mb | Sep 1-2 |
| LeeLF | TS | 60 mph | 986 mb | Sep 2-5 |
| MariaLF | Cat 1 | 80 mph | 983 mb | Sep 6-16 |
| NateLF | Cat 1 | 75 mph | 994 mb | Sep 7-11 |
| Ophelia | Cat 4 | 140 mph | 940 mb | Sep 20-Oct 3 |
| Philippe | Cat 1 | 90 mph | 976 mb | Sep 24-Oct 8 |
| RinaLF | Cat 3 | 115 mph | 966 mb | Oct 23-28 |
| Sean | TS | 65 mph | 982 mb | Nov 8-11 |
2011 Eastern Pacific storms
- Named storms
- 11
- Hurricanes
- 10
- Major (Cat 3+)
- 6
- Strongest
- Dora, 155 mph
| Storm | Peak | Wind | Pressure | Dates |
|---|---|---|---|---|
| Adrian | Cat 4 | 140 mph | 944 mb | Jun 7-12 |
| Beatriz | Cat 1 | 90 mph | 977 mb | Jun 19-22 |
| Calvin | Cat 1 | 80 mph | 984 mb | Jul 7-10 |
| Dora | Cat 4 | 155 mph | 929 mb | Jul 18-24 |
| Eugene | Cat 4 | 140 mph | 942 mb | Jul 31-Aug 6 |
| Fernanda | TS | 70 mph | 992 mb | Aug 15-19 |
| Greg | Cat 1 | 85 mph | 979 mb | Aug 16-21 |
| Hilary | Cat 4 | 145 mph | 942 mb | Sep 21-30 |
| JovaLF | Cat 3 | 125 mph | 955 mb | Oct 6-12 |
| Irwin | Cat 2 | 100 mph | 976 mb | Oct 6-16 |
| Kenneth | Cat 4 | 145 mph | 940 mb | Nov 19-25 |
About these numbers
"LF" marks storms that made landfall at least once.
Peak winds are the highest 1-minute sustained wind in NOAA's HURDAT2 best-track database, the official post-season record maintained by the National Hurricane Center. Categories follow the Saffir-Simpson scale: Category 1 starts at 74 mph, Category 3 ("major") at 111 mph and Category 5 at 157 mph. Storms that only reached tropical depression strength are not counted as named storms.
Hurricanes are weather, not plate tectonics, but they share this site because many of the coasts they hit also sit on active plate boundaries. See active storms on the live map.