The 2015 season

Tropical Storm Ida (2015)

Tropical Storm Ida peaked at 45 kt in the North Atlantic between September 15, 2015 and September 28, 2015, with a lowest pressure of 1001 mb.

Track and intensity

The whole track of Tropical Storm Ida, colored by strength, with the other storms of the 2015 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 15, 2015 to September 28, 2015
Peak strength
Tropical Storm, 45 kt (52 mph)
Lowest pressure
1001 mb (29.56 inHg)
Landfall
No; closest approach 875 km (544 mi)
Accumulated cyclone energy
3.1
Tropical-storm-force wind reached
180 nmi (333 km, 207 mi) from the center at its widest
Eyewall radius at its peak
40 nmi (74 km, 46 mi)
Overall size
250 nmi (463 km, 288 mi) to the outermost closed isobar
Peak gust in the best track
55 kt (63 mph)
Fastest the center moved
15 kt (17 mph)
Identifier
AL102015

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Sep 15, 12:009.4N 24.2W25 kt1010 mbLow
Sep 15, 18:009.7N 25.5W25 kt1010 mbLow
Sep 16, 00:0010.1N 26.6W25 kt1010 mbLow
Sep 16, 06:0010.4N 27.6W25 kt1010 mbLow
Sep 16, 12:0010.7N 28.6W25 kt1010 mbLow
Sep 16, 18:0011.0N 29.6W25 kt1009 mbLow
Sep 17, 00:0011.3N 30.7W25 kt1009 mbLow
Sep 17, 06:0011.6N 31.8W25 kt1008 mbLow
Sep 17, 12:0012.0N 32.9W25 kt1008 mbLow
Sep 17, 18:0012.3N 33.9W25 kt1008 mbLow
Sep 18, 00:0012.6N 34.9W25 kt1008 mbLow
Sep 18, 06:0012.9N 35.7W25 kt1007 mbTropical depression
Sep 18, 12:0013.2N 36.4W25 kt1007 mbTropical depression
Sep 18, 18:0013.4N 37.0W30 kt1006 mbTropical depression
Sep 19, 00:0013.7N 37.6W35 kt1005 mbTropical storm
Sep 19, 06:0014.1N 38.4W35 kt1005 mbTropical storm
Sep 19, 12:0014.6N 39.4W35 kt1005 mbTropical storm
Sep 19, 18:0015.1N 40.6W35 kt1005 mbTropical storm
Sep 20, 00:0015.6N 41.9W40 kt1004 mbTropical storm
Sep 20, 06:0016.2N 43.1W40 kt1004 mbTropical storm
Sep 20, 12:0016.9N 44.4W40 kt1004 mbTropical storm
Sep 20, 18:0017.8N 45.6W40 kt1003 mbTropical storm
Sep 21, 00:0018.8N 46.5W40 kt1003 mbTropical storm
Sep 21, 06:0019.7N 47.3W45 kt1002 mbTropical storm
Sep 21, 12:0020.5N 48.1W45 kt1001 mbTropical storm
Sep 21, 18:0020.9N 48.7W45 kt1001 mbTropical storm
Sep 22, 00:0021.3N 48.9W40 kt1002 mbTropical storm
Sep 22, 06:0021.4N 48.5W40 kt1002 mbTropical storm
Sep 22, 12:0021.4N 47.9W40 kt1002 mbTropical storm
Sep 22, 18:0021.1N 47.4W40 kt1003 mbTropical storm
Sep 23, 00:0020.9N 47.2W35 kt1004 mbTropical storm
Sep 23, 06:0020.6N 47.2W35 kt1004 mbTropical storm
Sep 23, 12:0020.3N 47.2W35 kt1004 mbTropical storm
Sep 23, 18:0019.9N 46.9W35 kt1004 mbTropical storm
Sep 24, 00:0019.7N 46.4W35 kt1004 mbTropical storm
Sep 24, 06:0019.7N 45.7W30 kt1005 mbTropical depression
Sep 24, 12:0020.0N 45.2W30 kt1005 mbTropical depression
Sep 24, 18:0020.5N 45.0W30 kt1005 mbTropical depression
Sep 25, 00:0021.0N 45.0W30 kt1006 mbTropical depression
Sep 25, 06:0021.4N 45.0W30 kt1006 mbTropical depression
Sep 25, 12:0021.8N 45.1W30 kt1006 mbTropical depression
Sep 25, 18:0022.2N 45.2W30 kt1006 mbTropical depression
Sep 26, 00:0022.6N 45.5W30 kt1006 mbTropical depression
Sep 26, 06:0023.1N 45.8W30 kt1006 mbTropical depression
Sep 26, 12:0023.6N 46.2W30 kt1006 mbTropical depression
Sep 26, 18:0024.0N 46.7W30 kt1006 mbTropical depression
Sep 27, 00:0024.3N 47.2W30 kt1006 mbTropical depression
Sep 27, 06:0024.5N 47.7W25 kt1007 mbTropical depression
Sep 27, 12:0024.6N 48.1W25 kt1007 mbLow
Sep 27, 18:0024.5N 48.7W25 kt1007 mbLow
Sep 28, 00:0024.1N 49.3W20 kt1008 mbLow

Other North Atlantic storms of 2015

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.