What the record says
Irma was a hurricane in the North Atlantic basin that lasted about 14 days, from 30 August 2017 to 13 September 2017. Its peak was Category 5 (155 kt) on 5 September 2017, with a 1-minute sustained wind of 155 kt (178 mph, 287 km/h). Its lowest recorded pressure was 914 hPa.
- Category 5peak intensity
- 155 ktpeak wind (178 mph)
- 914 hPalowest pressure
- 14 dayslifetime
Source of the peak wind: NOAA National Hurricane Center (HURDAT2, Atlantic).
It has its own page because it reached category 5 or stronger and it is a well-known storm.
This page gives the official record's figures. It does not describe the human cost of the storm, which is far larger than any wind speed or pressure here.
Where it came ashore
- 11 September 2017: United States of America (80 kt)
A landfall here is the first tropical position over land after time at sea, so it is within about six hours of the real event. The record shows up to 8.
Countries it came within 50 km of
Strongest effect first.
US counties it came within 50 km of
- St. John Island, United States Virgin Islands
- St. Thomas Island, United States Virgin Islands
- Culebra Municipio, Puerto Rico
- Monroe County, Florida
- Collier County, Florida
- Charlotte County, Florida
- DeSoto County, Florida
- Glades County, Florida
- Hendry County, Florida
- Highlands County, Florida
- Lee County, Florida
- Sarasota County, Florida
Showing 12 of 40, strongest first.
How to read this track
The line joins the storm's six-hourly positions with straight lines, coloured by its intensity at each point, so it shows how the storm strengthened and weakened. The real path curved between the positions. A dashed grey stretch means the storm had become post-tropical. Records before the satellite era (about the 1960s) are estimates.
Source: NOAA NCEI IBTrACS, public domain. See data sources and caveats.
Other notable storms of the 2017 North Atlantic season
- Maria (2017)Category 5
- Harvey (2017)Category 4
- Jose (2017)Category 4
- Lee (2017)Category 3
- Ophelia (2017)Category 3
Other notable storms near Antigua and Barbuda
- Luis (1995)28 August 1995 to 12 September 1995, peak Category 4 (130 kt), 935 hPa
- Dog (1950)30 August 1950 to 18 September 1950, peak Category 4 (125 kt), 953 hPa