The 2000 season

Tropical Storm Ilsa (2000)

Tropical Storm Ilsa peaked at 60 kt in the South Indian between December 9, 1999 and December 17, 1999, with a lowest pressure of 980 mb, and made landfall.

Radar

Reflectivity now over Tropical Storm Ilsa. 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
South Indian
Dates
December 9, 1999 to December 17, 1999
Peak strength
Tropical Storm, 60 kt (69 mph)
Lowest pressure
980 mb (28.94 inHg)
Landfall
Yes
Accumulated cyclone energy
6.4
Identifier
SH012000

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Dec 9, 00:009.0S 95.2E25 kt1002 mbTropical storm
Dec 9, 06:009.1S 95.7E25 kt1002 mbTropical storm
Dec 9, 12:009.1S 96.3E25 kt1002 mbTropical storm
Dec 9, 18:009.2S 96.8E25 kt1002 mbTropical storm
Dec 10, 00:009.4S 97.4E20 kt1001 mbTropical storm
Dec 10, 06:009.6S 97.9E20 kt999 mbTropical storm
Dec 10, 12:009.8S 98.3E25 kt997 mbTropical storm
Dec 10, 18:0010.1S 99.0E30 kt996 mbTropical storm
Dec 11, 00:0010.5S 99.6E30 kt993 mbTropical storm
Dec 11, 06:0010.8S 100.2E35 kt988 mbTropical storm
Dec 11, 12:0011.2S 100.9E40 kt985 mbTropical storm
Dec 11, 18:0011.6S 101.5E40 kt983 mbTropical storm
Dec 12, 00:0011.9S 102.0E40 kt980 mbTropical storm
Dec 12, 06:0012.1S 102.5E45 kt981 mbTropical storm
Dec 12, 12:0012.3S 102.8E45 kt985 mbTropical storm
Dec 12, 18:0012.4S 103.5E45 kt985 mbTropical storm
Dec 13, 00:0012.4S 104.2E50 kt986 mbTropical storm
Dec 13, 06:0012.4S 105.0E55 kt990 mbTropical storm
Dec 13, 12:0012.4S 105.8E55 kt990 mbTropical storm
Dec 13, 18:0012.4S 106.6E55 kt990 mbTropical storm
Dec 14, 00:0012.2S 107.4E55 kt990 mbTropical storm
Dec 14, 06:0012.1S 108.4E55 kt990 mbTropical storm
Dec 14, 12:0012.0S 109.2E55 kt990 mbTropical storm
Dec 14, 18:0012.0S 110.1E55 kt990 mbTropical storm
Dec 15, 00:0012.1S 111.0E55 kt990 mbTropical storm
Dec 15, 06:0012.5S 112.4E60 kt990 mbTropical storm
Dec 15, 12:0012.9S 113.4E60 kt990 mbTropical storm
Dec 15, 18:0013.7S 114.5E60 kt992 mbTropical storm
Dec 16, 00:0015.0S 116.0E60 kt992 mbTropical storm
Dec 16, 06:0016.1S 117.3E50 kt992 mbTropical storm
Dec 16, 12:0017.3S 118.5E45 kt994 mbTropical storm
Dec 16, 18:0018.4S 119.3E50 kt994 mbTropical storm
Dec 17, 00:0019.2S 120.0E55 kt994 mbTropical storm
Dec 17, 06:0020.0S 120.8E35 kt994 mbTropical storm
Dec 17, 12:0020.8S 121.8E30 kt995 mbTropical storm

Other South Indian storms of 2000

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.