The 2011 season

Hurricane Philippe (2011)

Hurricane Philippe reached Category 1 in the North Atlantic between September 23, 2011 and October 9, 2011, with a lowest pressure of 976 mb.

Radar

Reflectivity now over Hurricane Philippe. 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
North Atlantic
Dates
September 23, 2011 to October 9, 2011
Peak strength
Category 1, 80 kt (92 mph)
Lowest pressure
976 mb (28.82 inHg)
Landfall
No; closest approach 392 km (244 mi)
Accumulated cyclone energy
15.9
Tropical-storm-force wind reached
180 nmi (333 km, 207 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
10 nmi (19 km, 12 mi)
Overall size
300 nmi (556 km, 345 mi) to the outermost closed isobar
Peak gust in the best track
100 kt (115 mph)
Fastest the center moved
38 kt (44 mph)
Identifier
AL172011

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Sep 23, 00:008.3N 17.5W20 kt1010 mbLow
Sep 23, 06:008.6N 19.1W20 kt1010 mbLow
Sep 23, 12:009.0N 20.6W25 kt1010 mbLow
Sep 23, 18:009.5N 22.0W25 kt1009 mbLow
Sep 24, 00:0010.4N 23.3W30 kt1008 mbLow
Sep 24, 06:0011.0N 24.7W30 kt1007 mbTropical depression
Sep 24, 12:0011.1N 26.1W35 kt1006 mbTropical storm
Sep 24, 18:0011.2N 27.3W35 kt1006 mbTropical storm
Sep 25, 00:0011.5N 28.4W35 kt1006 mbTropical storm
Sep 25, 06:0012.1N 29.4W40 kt1006 mbTropical storm
Sep 25, 12:0012.7N 30.3W40 kt1006 mbTropical storm
Sep 25, 18:0013.2N 31.2W45 kt1005 mbTropical storm
Sep 26, 00:0013.8N 32.1W45 kt1005 mbTropical storm
Sep 26, 06:0014.4N 33.0W45 kt1004 mbTropical storm
Sep 26, 12:0014.9N 33.6W50 kt1003 mbTropical storm
Sep 26, 18:0015.3N 34.1W50 kt1003 mbTropical storm
Sep 27, 00:0015.4N 34.4W45 kt1004 mbTropical storm
Sep 27, 06:0015.5N 34.7W45 kt1004 mbTropical storm
Sep 27, 12:0015.6N 35.2W40 kt1005 mbTropical storm
Sep 27, 18:0015.7N 35.8W35 kt1006 mbTropical storm
Sep 28, 00:0015.8N 36.6W30 kt1007 mbTropical depression
Sep 28, 06:0016.0N 37.4W30 kt1007 mbTropical depression
Sep 28, 12:0016.2N 38.4W35 kt1006 mbTropical storm
Sep 28, 18:0016.6N 39.4W40 kt1005 mbTropical storm
Sep 29, 00:0017.1N 40.5W40 kt1005 mbTropical storm
Sep 29, 06:0017.8N 41.5W45 kt1004 mbTropical storm
Sep 29, 12:0018.7N 42.3W45 kt1004 mbTropical storm
Sep 29, 18:0019.7N 43.0W45 kt1005 mbTropical storm
Sep 30, 00:0020.7N 43.6W40 kt1007 mbTropical storm
Sep 30, 06:0021.7N 44.2W40 kt1007 mbTropical storm
Sep 30, 12:0022.5N 44.8W45 kt1006 mbTropical storm
Sep 30, 18:0023.2N 45.6W45 kt1005 mbTropical storm
Oct 1, 00:0023.8N 46.3W50 kt1003 mbTropical storm
Oct 1, 06:0024.1N 47.0W55 kt999 mbTropical storm
Oct 1, 12:0024.4N 47.6W60 kt997 mbTropical storm
Oct 1, 18:0024.8N 48.4W60 kt995 mbTropical storm
Oct 2, 00:0025.2N 49.3W60 kt993 mbTropical storm
Oct 2, 06:0025.8N 50.3W50 kt998 mbTropical storm
Oct 2, 12:0026.2N 51.2W40 kt1004 mbTropical storm
Oct 2, 18:0026.3N 52.3W40 kt1004 mbTropical storm
Oct 3, 00:0026.2N 53.2W45 kt1004 mbTropical storm
Oct 3, 06:0025.6N 54.0W50 kt1001 mbTropical storm
Oct 3, 12:0024.9N 54.8W55 kt998 mbTropical storm
Oct 3, 18:0024.3N 55.6W60 kt995 mbTropical storm
Oct 4, 00:0023.8N 56.6W65 kt992 mbHurricane
Oct 4, 06:0023.7N 57.7W65 kt992 mbHurricane
Oct 4, 12:0023.8N 58.7W60 kt993 mbTropical storm
Oct 4, 18:0024.0N 59.6W60 kt994 mbTropical storm
Oct 5, 00:0024.3N 60.2W60 kt994 mbTropical storm
Oct 5, 06:0024.7N 60.7W60 kt994 mbTropical storm
Oct 5, 12:0025.2N 61.0W55 kt995 mbTropical storm
Oct 5, 18:0025.5N 61.1W55 kt995 mbTropical storm
Oct 6, 00:0025.9N 61.1W60 kt992 mbTropical storm
Oct 6, 06:0026.5N 61.0W65 kt987 mbHurricane
Oct 6, 12:0027.4N 60.4W70 kt983 mbHurricane
Oct 6, 18:0028.2N 59.7W80 kt977 mbHurricane
Oct 7, 00:0028.7N 58.8W80 kt976 mbHurricane
Oct 7, 06:0029.0N 57.7W80 kt976 mbHurricane
Oct 7, 12:0029.3N 56.5W80 kt977 mbHurricane
Oct 7, 18:0029.7N 55.1W70 kt981 mbHurricane
Oct 8, 00:0030.1N 53.5W65 kt986 mbHurricane
Oct 8, 06:0030.9N 51.4W60 kt987 mbTropical storm
Oct 8, 12:0032.3N 48.7W60 kt987 mbTropical storm
Oct 8, 18:0034.4N 46.0W50 kt987 mbExtratropical
Oct 9, 00:0037.5N 43.6W45 kt987 mbExtratropical

Other North Atlantic 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.