The 1991 season

Super Typhoon Mireille (1991)

Super Typhoon Mireille reached Category 4 in the Western Pacific between September 13, 1991 and October 1, 1991, with a lowest pressure of 925 mb, and made landfall.

Track and intensity

The whole track of Super Typhoon Mireille, colored by strength, with the other storms of the 1991 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
Western Pacific
Dates
September 13, 1991 to October 1, 1991
Peak strength
Category 4, 130 kt (150 mph)
Lowest pressure
925 mb (27.32 inHg)
Landfall
Yes
Accumulated cyclone energy
49.4
Fastest the center moved
69 kt (79 mph)
Identifier
WP211991

Radar at RODN as it neared land, Sep 26, 12:00 UTC

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
Sep 13, 00:0012.9N 171.2E1010 mbTropical storm
Sep 13, 06:0012.5N 170.5E1010 mbTropical storm
Sep 13, 12:0012.1N 172.3E10 kt1010 mbTropical storm
Sep 13, 18:0012.4N 170.9E10 kt1010 mbTropical storm
Sep 14, 00:0012.7N 169.5E15 kt1008 mbTropical storm
Sep 14, 06:0013.0N 168.1E15 kt1006 mbTropical storm
Sep 14, 12:0013.2N 166.7E20 kt1006 mbTropical storm
Sep 14, 18:0013.5N 165.3E20 kt1006 mbTropical storm
Sep 15, 00:0013.8N 163.9E25 kt1004 mbTropical storm
Sep 15, 06:0014.0N 162.6E25 kt1004 mbTropical storm
Sep 15, 12:0014.1N 161.3E30 kt1004 mbTropical storm
Sep 15, 18:0014.2N 160.0E35 kt1004 mbTropical storm
Sep 16, 00:0014.4N 158.8E45 kt1000 mbTropical storm
Sep 16, 06:0014.7N 157.6E55 kt990 mbTropical storm
Sep 16, 12:0015.0N 156.7E65 kt985 mbTropical storm
Sep 16, 18:0015.4N 155.9E75 kt970 mbTropical storm
Sep 17, 00:0015.7N 155.1E75 kt965 mbTropical storm
Sep 17, 06:0016.0N 154.3E75 kt965 mbTropical storm
Sep 17, 12:0016.1N 153.6E70 kt965 mbTropical storm
Sep 17, 18:0016.0N 152.9E70 kt965 mbTropical storm
Sep 18, 00:0015.8N 152.2E70 kt960 mbTropical storm
Sep 18, 06:0015.6N 151.6E70 kt960 mbTropical storm
Sep 18, 12:0015.5N 150.8E75 kt955 mbTropical storm
Sep 18, 18:0015.4N 149.9E80 kt955 mbTropical storm
Sep 19, 00:0015.3N 148.8E80 kt955 mbTropical storm
Sep 19, 06:0015.4N 147.5E80 kt955 mbTropical storm
Sep 19, 12:0015.5N 146.2E80 kt955 mbTropical storm
Sep 19, 18:0015.5N 144.7E85 kt955 mbTropical storm
Sep 20, 00:0015.4N 143.2E85 kt955 mbTropical storm
Sep 20, 06:0015.1N 141.9E85 kt955 mbTropical storm
Sep 20, 12:0014.9N 140.5E85 kt955 mbTropical storm
Sep 20, 18:0014.6N 139.3E85 kt955 mbTropical storm
Sep 21, 00:0014.5N 138.2E90 kt955 mbTropical storm
Sep 21, 06:0014.5N 137.2E95 kt950 mbTropical storm
Sep 21, 12:0014.7N 136.2E100 kt945 mbTropical storm
Sep 21, 18:0015.0N 135.3E110 kt940 mbTropical storm
Sep 22, 00:0015.4N 134.5E115 kt940 mbTropical storm
Sep 22, 06:0015.8N 133.8E125 kt935 mbTropical storm
Sep 22, 12:0016.3N 133.1E130 kt935 mbTropical storm
Sep 22, 18:0016.9N 132.5E130 kt935 mbTropical storm
Sep 23, 00:0017.5N 131.9E130 kt930 mbTropical storm
Sep 23, 06:0018.0N 131.4E130 kt925 mbTropical storm
Sep 23, 12:0018.7N 130.9E130 kt925 mbTropical storm
Sep 23, 18:0019.1N 130.2E130 kt925 mbTropical storm
Sep 24, 00:0019.5N 129.6E130 kt925 mbTropical storm
Sep 24, 06:0019.9N 129.2E130 kt925 mbTropical storm
Sep 24, 12:0020.5N 128.8E130 kt930 mbTropical storm
Sep 24, 18:0020.9N 128.2E125 kt930 mbTropical storm
Sep 25, 00:0021.5N 127.6E125 kt935 mbTropical storm
Sep 25, 06:0022.2N 127.1E120 kt940 mbTropical storm
Sep 25, 12:0023.0N 126.7E115 kt940 mbTropical storm
Sep 25, 18:0023.7N 126.1E115 kt940 mbTropical storm
Sep 26, 00:0024.4N 125.8E115 kt940 mbTropical storm
Sep 26, 06:0025.4N 125.7E115 kt935 mbTropical storm
Sep 26, 12:0026.5N 125.9E115 kt935 mbTropical storm
Sep 26, 18:0028.1N 126.4E110 kt930 mbTropical storm
Sep 27, 00:0030.0N 127.6E100 kt935 mbTropical storm
Sep 27, 06:0032.3N 129.2E95 kt935 mbTropical storm
Sep 27, 12:0035.3N 132.5E85 kt945 mbTropical storm
Sep 27, 18:0038.5N 137.0E75 kt950 mbTropical storm
Sep 28, 00:0043.5N 141.8E65 kt970 mbTropical storm
Sep 28, 06:0047.0N 148.0E966 mbExtratropical
Sep 28, 12:0048.0N 152.0E966 mbExtratropical
Sep 28, 18:0049.0N 155.0E962 mbExtratropical
Sep 29, 00:0052.0N 164.0E960 mbExtratropical
Sep 29, 06:0053.0N 169.0E952 mbExtratropical
Sep 29, 12:0053.0N 172.0E948 mbExtratropical
Sep 29, 18:0053.0N 174.0E952 mbExtratropical
Sep 30, 00:0053.0N 175.0E956 mbExtratropical
Sep 30, 06:0054.0N 177.0E960 mbExtratropical
Sep 30, 12:0054.0N 179.0E960 mbExtratropical
Sep 30, 18:0054.0N 180.0E968 mbExtratropical
Oct 1, 00:0055.0N 181.0EExtratropical

Other Western Pacific storms of 1991

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.