The 1951 season

Super Typhoon Iris (1951)

Super Typhoon Iris reached Category 5 in the Western Pacific between April 28, 1951 and May 14, 1951, with a lowest pressure of 909 mb, and made landfall.

Radar

Reflectivity now over Super Typhoon Iris. 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
Western Pacific
Dates
April 28, 1951 to May 14, 1951
Peak strength
Category 5, 150 kt (173 mph)
Lowest pressure
909 mb (26.84 inHg)
Landfall
Yes
Accumulated cyclone energy
32.5
Identifier
WP031951

Deaths and damage

No source this site reads publishes a machine-readable casualty or damage figure for a storm of this era. The National Hurricane Center’s season tables begin in 1995 and carry deaths and damage only from 2005 in the Atlantic and 2020 in both basins; the US Storm Events record begins in 1996.

Track

Time (UTC)PositionWindPressureStatus
Apr 28, 12:006.3N 144.9E1008 mbMixed
Apr 28, 18:006.3N 144.5E1006 mbMixed
Apr 29, 00:006.5N 144.0E1003 mbTropical storm
Apr 29, 06:006.6N 143.5E1003 mbTropical storm
Apr 29, 12:007.3N 142.8E35 kt1002 mbTropical storm
Apr 29, 18:007.4N 142.4E45 kt1002 mbTropical storm
Apr 30, 00:007.8N 141.8E55 kt1000 mbTropical storm
Apr 30, 06:008.2N 141.1E60 kt998 mbTropical storm
Apr 30, 12:008.5N 140.2E65 kt996 mbTropical storm
Apr 30, 18:008.8N 139.4E65 kt994 mbTropical storm
May 1, 00:009.0N 137.8E65 kt992 mbTropical storm
May 1, 06:009.0N 136.8E70 kt987 mbTropical storm
May 1, 12:009.2N 135.8E70 kt987 mbTropical storm
May 1, 18:009.7N 134.8E65 kt987 mbTropical storm
May 2, 00:0010.0N 134.5E60 kt986 mbTropical storm
May 2, 06:0010.5N 134.1E70 kt984 mbTropical storm
May 2, 12:0011.0N 133.5E80 kt982 mbTropical storm
May 2, 18:0011.2N 133.2E90 kt970 mbTropical storm
May 3, 00:0011.2N 132.2E100 kt926 mbTropical storm
May 3, 06:0011.0N 131.9E120 kt912 mbTropical storm
May 3, 12:0011.0N 131.2E130 kt909 mbTropical storm
May 3, 18:0011.3N 130.7E140 kt909 mbTropical storm
May 4, 00:0012.0N 129.4E150 kt910 mbTropical storm
May 4, 06:0012.1N 127.8E140 kt909 mbTropical storm
May 4, 12:0012.0N 126.6E130 kt912 mbTropical storm
May 4, 18:0012.1N 125.4E110 kt919 mbTropical storm
May 5, 00:0012.2N 124.7E80 kt930 mbTropical storm
May 5, 06:0012.3N 123.8E70 kt941 mbTropical storm
May 5, 12:0012.6N 123.1E65 kt952 mbTropical storm
May 5, 18:0013.1N 122.0E60 kt964 mbTropical storm
May 6, 00:0013.6N 121.2E55 kt975 mbTropical storm
May 6, 06:0014.3N 120.4E50 kt984 mbTropical storm
May 6, 12:0014.8N 119.8E50 kt988 mbTropical storm
May 6, 18:0015.2N 118.9E50 kt988 mbTropical storm
May 7, 00:0016.3N 117.8E65 kt988 mbTropical storm
May 7, 06:0017.2N 117.9E65 kt986 mbTropical storm
May 7, 12:0018.2N 118.2E65 kt981 mbTropical storm
May 7, 18:0019.1N 118.6E70 kt978 mbTropical storm
May 8, 00:0020.0N 119.3E75 kt975 mbTropical storm
May 8, 06:0021.0N 120.3E70 kt974 mbTropical storm
May 8, 12:0022.0N 121.5E75 kt972 mbTropical storm
May 8, 18:0023.0N 122.8E80 kt970 mbTropical storm
May 9, 00:0024.1N 125.3E85 kt970 mbTropical storm
May 9, 06:0025.0N 128.0E85 kt976 mbTropical storm
May 9, 12:0026.0N 131.0E80 kt983 mbTropical storm
May 9, 18:0026.6N 134.0E80 kt990 mbTropical storm
May 10, 00:0027.0N 136.0E80 kt993 mbTropical storm
May 10, 06:0027.6N 138.5E70 kt995 mbTropical storm
May 10, 12:0028.2N 141.1E70 kt995 mbTropical storm
May 10, 18:0028.7N 143.8E70 kt995 mbTropical storm
May 11, 00:0027.8N 146.5E70 kt995 mbTropical storm
May 11, 06:0026.9N 145.8E60 kt995 mbTropical storm
May 11, 12:0027.0N 145.2E50 kt1000 mbMixed
May 11, 18:0027.2N 144.5E40 kt1000 mbMixed
May 12, 00:0027.8N 143.9E35 kt1000 mbMixed
May 12, 06:0028.4N 143.0E35 kt1004 mbMixed
May 12, 12:0029.0N 142.3E30 kt1000 mbMixed
May 12, 18:0030.0N 142.0E30 kt1000 mbMixed
May 13, 00:0031.1N 143.0E1000 mbMixed
May 13, 06:0031.4N 144.2E1002 mbMixed
May 13, 12:0031.3N 146.1E1004 mbMixed
May 13, 18:0031.6N 148.3E1006 mbMixed
May 14, 00:0032.0N 150.0E1010 mbExtratropical
May 14, 06:0033.5N 154.0E1010 mbExtratropical
May 14, 12:0034.8N 157.0E1012 mbExtratropical
May 14, 18:0037.0N 160.0E1012 mbExtratropical

Other Western Pacific storms of 1951

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.