What the record says
Isaac was a hurricane in the North Atlantic basin that lasted about 12 days, from 20 August 2012 to 1 September 2012. Its peak was Category 1 (70 kt) on 28 August 2012, with a 1-minute sustained wind of 70 kt (81 mph, 130 km/h). Its lowest recorded pressure was 966 hPa.
- Category 1peak intensity
- 70 ktpeak wind (81 mph)
- 966 hPalowest pressure
- 12 dayslifetime
Source of the peak wind: NOAA National Hurricane Center (HURDAT2, Atlantic).
It has its own page because it is among the best-known storms in the record 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
- 25 August 2012: Haiti (55 kt)
- 29 August 2012: United States of America (70 kt)
- 29 August 2012: United States of America (65 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
- Jefferson Parish, Louisiana
- Lafourche Parish, Louisiana
- Terrebonne Parish, Louisiana
- St. Charles Parish, Louisiana
- Plaquemines Parish, Louisiana
- St. Mary Parish, Louisiana
- Ascension Parish, Louisiana
- Assumption Parish, Louisiana
- St. James Parish, Louisiana
- St. John the Baptist Parish, Louisiana
- St. Martin Parish, Louisiana
- Iberville Parish, Louisiana
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 2012 North Atlantic season
- Michael (2012)Category 3
- Sandy (2012)Category 3
Other notable storms near United States of America
- Rita (2005)18 September 2005 to 26 September 2005, peak Category 5 (155 kt), 897 hPa
- Camille (1969)14 August 1969 to 22 August 1969, peak Category 5 (150 kt), 905 hPa
- Katrina (2005)23 August 2005 to 31 August 2005, peak Category 5 (150 kt), 902 hPa
- Isabel (2003)6 September 2003 to 20 September 2003, peak Category 5 (145 kt), 915 hPa
- Esther (1961)10 September 1961 to 27 September 1961, peak Category 5 (140 kt), 919 hPa