Hurricane Guillermo (1997)

Track map & timeline · Eastern Pacific · July 30 – August 24, 1997

Peak wind
161 mph
259 km/h · Aug 4
Peak category
Cat 5
Saffir–Simpson
Lowest pressure
919 mb
Landfalls
—
none
Lifetime
24.5 d
Jul 30 – Aug 24
Distance
7,667 mi
12,337 km
ACE
40.0
storm energy

TD TS Cat 1 2 3 4 5 · dashed = post-tropical / remnant low. Click any point or table row to jump there.

01 · The story

What happened with Guillermo

Hurricane Guillermo (1997) was a Category 5 hurricane of the 1997 Eastern Pacific season. It formed on July 30, 1997, 316 mi SSW of Tapachula, Chiapas, Mexico, reached its peak of 161 mph (259 km/h) and a minimum pressure of 919 mb on August 4, 1997, and never made landfall. It rapidly intensified by 58 mph in 24 hours (to 144 mph on August 3, 1997). The storm lasted 24.5 days and travelled about 7,667 miles (12,337 km).

02 · Intensity

Wind and pressure, hour by hour

Maximum sustained wind (mph) — hover or drag to scrub the map

03 · Timeline

Every official fix 99 positions

Date · UTCStatusWindPressurePositionNearest place
Jul 30 12:00TD 29 mph1010 mb11.0°N 94.7°Wopen ocean
Jul 30 18:00TD 35 mph1009 mb11.3°N 95.5°Wopen ocean
Jul 31 00:00TD 35 mph1008 mb11.6°N 96.3°Wopen ocean
Jul 31 06:00TS 40 mph1005 mb11.9°N 97.2°Wopen ocean
Jul 31 12:00TS 46 mph1002 mb12.1°N 98.1°Wopen ocean
Jul 31 18:00TS 52 mph1000 mb12.2°N 99.1°Wopen ocean
Aug 1 00:00TS 58 mph997 mb12.4°N 100.0°Wopen ocean
Aug 1 06:00TS 63 mph994 mb12.5°N 101.0°Wopen ocean
Aug 1 12:00TS 69 mph990 mb12.6°N 102.0°Wopen ocean
Aug 1 18:00Cat 1 75 mph987 mb12.7°N 103.0°Wopen ocean
Aug 2 00:00Cat 1 81 mph983 mb13.0°N 104.0°Wopen ocean
Aug 2 06:00Cat 1 86 mph979 mb13.1°N 105.0°Wopen ocean
Aug 2 12:00Cat 2 104 mph969 mb13.2°N 106.1°Wopen ocean
Aug 2 18:00Cat 3 121 mph959 mb13.3°N 107.1°Wopen ocean
Aug 3 00:00Cat 4 132 mph947 mb13.4°N 108.1°Wopen ocean
Aug 3 06:00Cat 4 144 mph935 mb13.5°N 109.1°Wopen ocean
Aug 3 12:00Cat 4 155 mph925 mb13.6°N 110.2°Wopen ocean
Aug 3 18:00Cat 4 150 mph927 mb13.7°N 111.4°Wopen ocean
Aug 4 00:00Cat 4 150 mph929 mb13.9°N 112.6°Wopen ocean
Aug 4 06:00Cat 4 150 mph928 mb14.0°N 113.9°Wopen ocean
Aug 4 12:00Cat 4 155 mph925 mb14.1°N 115.2°Wopen ocean
Aug 4 18:00Cat 5 161 mph921 mb14.2°N 116.6°Wopen ocean
Aug 5 00:00Cat 5 161 mph919 mb14.3°N 118.0°Wopen ocean
Aug 5 06:00Cat 5 161 mph920 mb14.3°N 119.5°Wopen ocean
Aug 5 12:00Cat 5 161 mph921 mb14.4°N 120.9°Wopen ocean
Aug 5 18:00Cat 4 155 mph925 mb14.6°N 122.4°Wopen ocean
Aug 6 00:00Cat 4 150 mph930 mb14.8°N 123.8°Wopen ocean
Aug 6 06:00Cat 4 144 mph938 mb15.2°N 125.2°Wopen ocean
Aug 6 12:00Cat 4 132 mph948 mb15.5°N 126.7°Wopen ocean
Aug 6 18:00Cat 3 127 mph954 mb15.9°N 128.2°Wopen ocean
Aug 7 00:00Cat 3 115 mph960 mb16.2°N 129.6°Wopen ocean
Aug 7 06:00Cat 2 104 mph970 mb16.5°N 130.9°Wopen ocean
Aug 7 12:00Cat 1 92 mph979 mb16.9°N 132.0°Wopen ocean
Aug 7 18:00Cat 1 81 mph983 mb17.4°N 133.0°Wopen ocean
Aug 8 00:00Cat 1 75 mph987 mb17.8°N 134.1°Wopen ocean
Aug 8 06:00TS 69 mph990 mb18.3°N 135.1°Wopen ocean
Aug 8 12:00TS 63 mph993 mb18.9°N 136.1°Wopen ocean
Aug 8 18:00TS 63 mph995 mb19.5°N 137.0°Wopen ocean
Aug 9 00:00TS 58 mph997 mb20.0°N 137.9°Wopen ocean
Aug 9 06:00TS 52 mph998 mb20.7°N 138.6°Wopen ocean
Aug 9 12:00TS 52 mph1000 mb21.3°N 139.3°Wopen ocean
Aug 9 18:00TS 52 mph1002 mb21.9°N 139.9°Wopen ocean
Aug 10 00:00TS 46 mph1005 mb22.6°N 140.4°Wopen ocean
Aug 10 06:00TS 40 mph1006 mb23.3°N 141.2°Wopen ocean
Aug 10 12:00TS 40 mph1006 mb24.2°N 141.8°Wopen ocean
Aug 10 18:00TD 35 mph1007 mb25.0°N 142.2°Wopen ocean
Aug 11 00:00TD 35 mph1007 mb25.9°N 142.6°Wopen ocean
Aug 11 06:00TD 35 mph1007 mb26.8°N 143.1°Wopen ocean
Aug 11 12:00TD 35 mph1004 mb27.6°N 143.6°Wopen ocean
Aug 11 18:00TS 40 mph1008 mb28.4°N 144.4°Wopen ocean
Aug 12 00:00TS 40 mph1007 mb29.0°N 145.4°Wopen ocean
Aug 12 06:00TS 46 mph1000 mb29.5°N 146.2°Wopen ocean
Aug 12 12:00TS 46 mph1000 mb29.8°N 147.2°Wopen ocean
Aug 12 18:00TS 46 mph1004 mb30.2°N 148.3°Wopen ocean
Aug 13 00:00TS 46 mph1004 mb30.7°N 149.4°Wopen ocean
Aug 13 06:00TS 46 mph1004 mb31.0°N 150.4°Wopen ocean
Aug 13 12:00TS 46 mph1004 mb31.5°N 151.6°Wopen ocean
Aug 13 18:00TS 52 mph1004 mb32.2°N 152.9°Wopen ocean
Aug 14 00:00TS 63 mph1000 mb33.0°N 153.9°Wopen ocean
Aug 14 06:00TS 58 mph1000 mb33.8°N 155.2°Wopen ocean
Aug 14 12:00TS 52 mph1000 mb34.6°N 156.3°Wopen ocean
Aug 14 18:00TS 46 mph1006 mb35.6°N 157.4°Wopen ocean
Aug 15 00:00TS 40 mph1008 mb36.8°N 158.4°Wopen ocean
Aug 15 06:00TS 40 mph1009 mb38.0°N 159.1°Wopen ocean
Aug 15 12:00TD 35 mph1010 mb39.3°N 159.7°Wopen ocean
Aug 15 18:00TD 35 mph1012 mb40.5°N 160.2°Wopen ocean
Aug 16 00:00TD extratropical35 mph1010 mb41.8°N 161.0°Wopen ocean
Aug 16 06:00TD extratropical35 mph1009 mb43.1°N 161.9°Wopen ocean
Aug 16 12:00TD extratropical35 mph1014 mb44.3°N 162.5°Wopen ocean
Aug 16 18:00TD extratropical35 mph1018 mb45.5°N 162.8°Wopen ocean
Aug 17 00:00TD extratropical29 mph1016 mb46.7°N 162.4°Wopen ocean
Aug 17 06:00TD extratropical35 mph1016 mb47.6°N 161.2°Wopen ocean
Aug 17 12:00TD extratropical29 mph1018 mb48.3°N 159.5°Wopen ocean
Aug 17 18:00TD extratropical29 mph1016 mb48.9°N 157.4°Wopen ocean
Aug 18 00:00TD extratropical29 mph1015 mb49.5°N 154.9°Wopen ocean
Aug 18 06:00TD extratropical29 mph1010 mb49.9°N 152.0°Wopen ocean
Aug 18 12:00TD extratropical35 mph1010 mb50.4°N 149.0°Wopen ocean
Aug 18 18:00TD extratropical29 mph1005 mb50.7°N 146.1°Wopen ocean
Aug 19 00:00TD extratropical35 mph1003 mb51.1°N 143.7°Wopen ocean
Aug 19 06:00TD extratropical35 mph1002 mb51.2°N 141.8°Wopen ocean
Aug 19 12:00TD extratropical35 mph1004 mb50.3°N 140.7°Wopen ocean
Aug 19 18:00TD extratropical35 mph1004 mb49.3°N 140.2°Wopen ocean
Aug 20 00:00TD extratropical35 mph1004 mb48.0°N 140.0°Wopen ocean
Aug 20 06:00TD extratropical35 mph1006 mb46.5°N 139.8°Wopen ocean
Aug 20 12:00TD extratropical35 mph1004 mb45.0°N 139.5°Wopen ocean
Aug 20 18:00TD extratropical35 mph1005 mb43.7°N 139.0°Wopen ocean
Aug 21 00:00TD extratropical29 mph1005 mb42.7°N 138.4°Wopen ocean
Aug 21 06:00TD extratropical29 mph1006 mb42.0°N 137.9°Wopen ocean
Aug 21 12:00TD extratropical29 mph1005 mb41.4°N 137.4°Wopen ocean
Aug 21 18:00TD extratropical29 mph1006 mb40.8°N 136.8°Wopen ocean
Aug 22 00:00TD extratropical29 mph1006 mb40.2°N 136.5°Wopen ocean
Aug 22 06:00TD extratropical35 mph1009 mb39.8°N 136.2°Wopen ocean
Aug 22 12:00TD extratropical29 mph1010 mb39.4°N 135.8°Wopen ocean
Aug 22 18:00TD extratropical29 mph1012 mb39.0°N 135.1°Wopen ocean
Aug 23 00:00TD extratropical29 mph1012 mb38.8°N 134.1°Wopen ocean
Aug 23 06:00TD extratropical29 mph1014 mb38.7°N 133.0°Wopen ocean
Aug 23 12:00TD extratropical23 mph1014 mb38.8°N 132.0°Wopen ocean
Aug 23 18:00TD extratropical23 mph1014 mb38.8°N 131.0°Wopen ocean
Aug 24 00:00TD extratropical23 mph1014 mb39.0°N 130.0°Wopen ocean

⬇ Download track data (CSV) · public-domain NOAA best track

Questions

Frequently asked questions

Did Guillermo make landfall?

No — the NOAA best-track record shows no landfall for Guillermo.

What category was Guillermo?

At its peak on August 4, 1997, Guillermo was a Category 5 hurricane with maximum sustained winds of 161 mph (259 km/h) and a central pressure of 919 mb.

How long did Guillermo last?

24.5 days, from July 30, 1997 to August 24, 1997, including 156 hours at hurricane strength (108 as a major hurricane). It travelled about 7,667 miles.

Where can I download the track data for Guillermo?

The 6-hourly positions, winds, pressure and wind radii are available as CSV on this page (track.csv) — they come from the NOAA National Hurricane Center's HURDAT2 database and are in the public domain.

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