The 2011 season

Hurricane Dora (2011)

Hurricane Dora reached Category 4 in the Eastern Pacific between July 18, 2011 and July 26, 2011, with a lowest pressure of 929 mb.

Radar

Reflectivity now over Hurricane Dora. Open it to see storms, cones and warnings on the map.

Open the live radar with storms, cones and warnings

Radar mosaic and map layers from NOAA MRMS. Boundaries from the Iowa Environmental Mesonet.

The storm

Basin
Eastern Pacific
Dates
July 18, 2011 to July 26, 2011
Peak strength
Category 4, 135 kt (155 mph)
Lowest pressure
929 mb (27.43 inHg)
Landfall
No; closest approach 107 km (66 mi)
Accumulated cyclone energy
15.5
Tropical-storm-force wind reached
120 nmi (222 km, 138 mi) from the center at its widest
Hurricane-force wind reached
40 nmi (74 km, 46 mi) from the center at its widest
Eyewall radius at its peak
15 nmi (28 km, 17 mi)
Overall size
200 nmi (370 km, 230 mi) to the outermost closed isobar
Peak gust in the best track
165 kt (190 mph)
Fastest the center moved
16 kt (18 mph)
Identifier
EP042011

Deaths and damage

No source this site reads carries a casualty or damage figure for this storm.

Track

Time (UTC)PositionWindPressureStatus
Jul 18, 00:0010.2N 89.0W25 kt1008 mbLow
Jul 18, 06:0010.3N 90.0W30 kt1006 mbTropical depression
Jul 18, 12:0010.4N 91.1W35 kt1005 mbTropical storm
Jul 18, 18:0010.6N 92.3W45 kt1002 mbTropical storm
Jul 19, 00:0010.9N 93.7W50 kt999 mbTropical storm
Jul 19, 06:0011.3N 95.1W55 kt996 mbTropical storm
Jul 19, 12:0011.8N 96.5W60 kt993 mbTropical storm
Jul 19, 18:0012.4N 97.9W65 kt989 mbHurricane
Jul 20, 00:0013.1N 99.4W70 kt987 mbHurricane
Jul 20, 06:0013.8N 100.9W80 kt981 mbHurricane
Jul 20, 12:0014.5N 102.3W90 kt970 mbHurricane
Jul 20, 18:0015.1N 103.6W105 kt957 mbHurricane
Jul 21, 00:0015.7N 104.7W115 kt948 mbHurricane
Jul 21, 06:0016.3N 105.7W125 kt939 mbHurricane
Jul 21, 12:0016.9N 106.5W135 kt929 mbHurricane
Jul 21, 18:0017.4N 107.1W130 kt932 mbHurricane
Jul 22, 00:0018.0N 107.8W115 kt948 mbHurricane
Jul 22, 06:0018.6N 108.5W95 kt967 mbHurricane
Jul 22, 12:0019.1N 109.1W75 kt981 mbHurricane
Jul 22, 18:0019.6N 109.7W60 kt987 mbTropical storm
Jul 23, 00:0020.1N 110.3W55 kt990 mbTropical storm
Jul 23, 06:0020.5N 111.0W50 kt994 mbTropical storm
Jul 23, 12:0020.9N 111.7W45 kt998 mbTropical storm
Jul 23, 18:0021.4N 112.4W45 kt1000 mbTropical storm
Jul 24, 00:0021.9N 113.0W40 kt1002 mbTropical storm
Jul 24, 06:0022.4N 113.5W35 kt1004 mbTropical storm
Jul 24, 12:0022.9N 113.9W30 kt1006 mbTropical depression
Jul 24, 18:0023.6N 114.3W25 kt1009 mbTropical depression
Jul 25, 00:0024.3N 114.6W25 kt1010 mbLow
Jul 25, 06:0024.9N 114.7W20 kt1010 mbLow
Jul 25, 12:0025.5N 114.8W20 kt1010 mbLow
Jul 25, 18:0026.0N 114.8W20 kt1010 mbLow
Jul 26, 00:0026.3N 114.8W20 kt1010 mbLow

Other Eastern Pacific storms of 2011

What this means

A best track is the record a warning agency settles on after the storm, not what it said at the time: position, maximum sustained wind and central pressure every six hours, revised against every observation that came in later. Category is the Saffir-Simpson scale, which runs from Category 1 at 64 kt to Category 5 at 137 kt and reads wind only, so it says nothing about surge or rain. Accumulated cyclone energy adds up the square of the wind through the storm's life, so it counts strength and duration together.

Sources

Storm history from NOAA NCEI’s International Best Track Archive for Climate Stewardship (IBTrACS), which merges the official best track of every warning agency. Live storms, cones, watches and warnings from the National Hurricane Center and the Central Pacific Hurricane Center. Archived radar from NOAA’s Level II archive.