The 2010 season

Hurricane Julia (2010)

Hurricane Julia reached Category 4 in the North Atlantic between September 12, 2010 and September 24, 2010, with a lowest pressure of 948 mb.

Track and intensity

The whole track of Hurricane Julia, colored by strength, with the other storms of the 2010 season in the same basin behind it, and its wind and pressure hour by hour. Every fix is in the track table below.

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The storm

Basin
North Atlantic
Dates
September 12, 2010 to September 24, 2010
Peak strength
Category 4, 120 kt (138 mph)
Lowest pressure
948 mb (27.99 inHg)
Landfall
No; closest approach 381 km (237 mi)
Accumulated cyclone energy
15.5
Tropical-storm-force wind reached
210 nmi (389 km, 242 mi) from the center at its widest
Hurricane-force wind reached
30 nmi (56 km, 35 mi) from the center at its widest
Eyewall radius at its peak
20 nmi (37 km, 23 mi)
Overall size
250 nmi (463 km, 288 mi) to the outermost closed isobar
Peak gust in the best track
140 kt (161 mph)
Fastest the center moved
23 kt (26 mph)
Identifier
AL122010

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Sep 12, 06:0012.9N 20.5W30 kt1007 mbTropical depression
Sep 12, 12:0013.0N 21.3W30 kt1006 mbTropical depression
Sep 12, 18:0013.1N 22.1W35 kt1005 mbTropical storm
Sep 13, 00:0013.5N 23.1W40 kt1004 mbTropical storm
Sep 13, 06:0014.0N 24.2W40 kt1004 mbTropical storm
Sep 13, 12:0014.5N 25.4W40 kt1004 mbTropical storm
Sep 13, 18:0015.0N 26.5W45 kt1003 mbTropical storm
Sep 14, 00:0015.3N 27.5W45 kt1002 mbTropical storm
Sep 14, 06:0015.6N 28.4W60 kt994 mbTropical storm
Sep 14, 12:0015.9N 29.2W70 kt987 mbHurricane
Sep 14, 18:0016.1N 29.9W80 kt979 mbHurricane
Sep 15, 00:0016.4N 30.6W90 kt973 mbHurricane
Sep 15, 06:0016.9N 31.4W110 kt956 mbHurricane
Sep 15, 12:0017.7N 32.2W120 kt948 mbHurricane
Sep 15, 18:0018.8N 33.0W115 kt951 mbHurricane
Sep 16, 00:0019.9N 34.1W105 kt958 mbHurricane
Sep 16, 06:0020.9N 35.8W100 kt962 mbHurricane
Sep 16, 12:0021.8N 37.7W90 kt970 mbHurricane
Sep 16, 18:0022.7N 40.0W80 kt977 mbHurricane
Sep 17, 00:0023.1N 42.0W75 kt981 mbHurricane
Sep 17, 06:0023.5N 44.0W75 kt981 mbHurricane
Sep 17, 12:0023.9N 45.8W70 kt983 mbHurricane
Sep 17, 18:0024.6N 47.4W65 kt986 mbHurricane
Sep 18, 00:0025.6N 48.7W60 kt988 mbTropical storm
Sep 18, 06:0026.9N 49.8W55 kt991 mbTropical storm
Sep 18, 12:0028.3N 50.7W50 kt994 mbTropical storm
Sep 18, 18:0029.8N 51.4W50 kt993 mbTropical storm
Sep 19, 00:0031.4N 51.8W55 kt989 mbTropical storm
Sep 19, 06:0032.8N 52.0W50 kt993 mbTropical storm
Sep 19, 12:0033.9N 51.4W45 kt995 mbTropical storm
Sep 19, 18:0034.6N 50.2W45 kt995 mbTropical storm
Sep 20, 00:0034.9N 49.2W45 kt995 mbTropical storm
Sep 20, 06:0034.9N 48.0W40 kt997 mbTropical storm
Sep 20, 12:0034.7N 46.9W40 kt999 mbTropical storm
Sep 20, 18:0034.6N 46.0W40 kt1002 mbLow
Sep 21, 00:0034.4N 45.1W40 kt1003 mbLow
Sep 21, 06:0034.4N 44.1W35 kt1004 mbLow
Sep 21, 12:0034.5N 43.0W35 kt1005 mbLow
Sep 21, 18:0034.5N 41.9W30 kt1006 mbLow
Sep 22, 00:0034.3N 40.9W30 kt1007 mbLow
Sep 22, 06:0033.9N 39.9W30 kt1007 mbLow
Sep 22, 12:0033.6N 38.8W30 kt1007 mbLow
Sep 22, 18:0033.2N 38.0W30 kt1008 mbLow
Sep 23, 00:0033.0N 37.8W30 kt1008 mbLow
Sep 23, 06:0032.7N 37.7W30 kt1009 mbLow
Sep 23, 12:0032.4N 37.8W30 kt1009 mbLow
Sep 23, 18:0032.0N 38.6W30 kt1010 mbLow
Sep 24, 00:0031.5N 40.0W30 kt1010 mbLow
Sep 24, 06:0031.2N 41.6W30 kt1011 mbLow
Sep 24, 12:0030.9N 43.1W30 kt1011 mbLow
Sep 24, 18:0030.6N 44.3W30 kt1012 mbLow

Other North Atlantic storms of 2010

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.