Track map & timeline · Eastern Pacific · August 12–23, 2009
TD TS Cat 1 2 3 4 5 · dashed = post-tropical / remnant low. During the replay the shaded rings show the storm’s wind field as analysed by NHC — 39+, 58+ and 74+ mph winds, quadrant by quadrant. Click any point or table row to jump there.
01 · The story
Hurricane Guillermo (2009) was a Category 3 hurricane of the 2009 Eastern Pacific season. It formed on August 12, 2009, reached its peak of 127 mph (204 km/h) and a minimum pressure of 954 mb on August 15, 2009, and never made landfall. It rapidly intensified by 46 mph in 24 hours (to 127 mph on August 15, 2009). The storm lasted 11.3 days and travelled about 3,874 miles (6,234 km).
02 · Intensity
03 · Timeline
| Date · UTC | Status | Wind | Pressure | Position | Nearest place |
|---|---|---|---|---|---|
| Aug 12 00:00 | TD low/wave | 29 mph | 1009 mb | 13.8°N 112.3°W | open ocean |
| Aug 12 06:00 | TD low/wave | 29 mph | 1008 mb | 14.4°N 113.9°W | open ocean |
| Aug 12 12:00 | TD | 35 mph | 1006 mb | 15.0°N 115.6°W | open ocean |
| Aug 12 18:00 | TD | 35 mph | 1005 mb | 15.6°N 117.1°W | open ocean |
| Aug 13 00:00 | TS | 40 mph | 1004 mb | 16.1°N 118.5°W | open ocean |
| Aug 13 06:00 | TS | 52 mph | 999 mb | 16.5°N 119.9°W | open ocean |
| Aug 13 12:00 | TS | 63 mph | 994 mb | 16.8°N 121.2°W | open ocean |
| Aug 13 18:00 | TS | 69 mph | 992 mb | 17.0°N 122.5°W | open ocean |
| Aug 14 00:00 | TS | 69 mph | 992 mb | 17.2°N 123.8°W | open ocean |
| Aug 14 06:00 | Cat 1 | 75 mph | 987 mb | 17.4°N 125.2°W | open ocean |
| Aug 14 12:00 | Cat 1 | 81 mph | 984 mb | 17.6°N 126.7°W | open ocean |
| Aug 14 18:00 | Cat 2 | 98 mph | 972 mb | 17.9°N 128.2°W | open ocean |
| Aug 15 00:00 | Cat 2 | 109 mph | 965 mb | 18.2°N 129.7°W | open ocean |
| Aug 15 06:00 | Cat 3 | 115 mph | 960 mb | 18.5°N 131.2°W | open ocean |
| Aug 15 12:00 | Cat 3 | 127 mph | 954 mb | 18.7°N 132.6°W | open ocean |
| Aug 15 18:00 | Cat 3 | 115 mph | 958 mb | 19.0°N 133.9°W | open ocean |
| Aug 16 00:00 | Cat 2 | 109 mph | 960 mb | 19.3°N 135.3°W | open ocean |
| Aug 16 06:00 | Cat 2 | 104 mph | 964 mb | 19.6°N 136.7°W | open ocean |
| Aug 16 12:00 | Cat 2 | 98 mph | 973 mb | 19.9°N 138.0°W | open ocean |
| Aug 16 18:00 | Cat 1 | 86 mph | 980 mb | 20.2°N 139.2°W | open ocean |
| Aug 17 00:00 | Cat 1 | 75 mph | 986 mb | 20.4°N 140.5°W | open ocean |
| Aug 17 06:00 | TS | 63 mph | 993 mb | 20.7°N 142.0°W | open ocean |
| Aug 17 12:00 | TS | 58 mph | 997 mb | 21.1°N 143.7°W | open ocean |
| Aug 17 18:00 | TS | 52 mph | 1000 mb | 21.7°N 145.4°W | open ocean |
| Aug 18 00:00 | TS | 52 mph | 1000 mb | 22.6°N 146.9°W | open ocean |
| Aug 18 06:00 | TS | 52 mph | 1000 mb | 23.7°N 148.1°W | open ocean |
| Aug 18 12:00 | TS | 52 mph | 1000 mb | 25.1°N 149.1°W | open ocean |
| Aug 18 18:00 | TS | 52 mph | 1001 mb | 26.4°N 150.3°W | open ocean |
| Aug 19 00:00 | TS | 46 mph | 1003 mb | 27.7°N 151.5°W | open ocean |
| Aug 19 06:00 | TS | 40 mph | 1006 mb | 28.7°N 152.8°W | open ocean |
| Aug 19 12:00 | TS | 40 mph | 1009 mb | 29.5°N 154.1°W | open ocean |
| Aug 19 18:00 | TD low/wave | 35 mph | 1012 mb | 30.4°N 155.3°W | open ocean |
| Aug 20 00:00 | TD low/wave | 35 mph | 1014 mb | 31.3°N 156.3°W | open ocean |
| Aug 20 06:00 | TD low/wave | 35 mph | 1016 mb | 32.1°N 157.1°W | open ocean |
| Aug 20 12:00 | TS extratropical | 46 mph | 1015 mb | 33.2°N 157.5°W | open ocean |
| Aug 20 18:00 | TS extratropical | 46 mph | 1015 mb | 34.3°N 157.6°W | open ocean |
| Aug 21 00:00 | TS extratropical | 46 mph | 1015 mb | 35.1°N 157.5°W | open ocean |
| Aug 21 06:00 | TS extratropical | 40 mph | 1017 mb | 35.6°N 157.4°W | open ocean |
| Aug 21 12:00 | TD extratropical | 35 mph | 1019 mb | 36.0°N 157.2°W | open ocean |
| Aug 21 18:00 | TD extratropical | 35 mph | 1020 mb | 36.4°N 157.0°W | open ocean |
| Aug 22 00:00 | TD extratropical | 35 mph | 1021 mb | 36.8°N 156.8°W | open ocean |
| Aug 22 06:00 | TD extratropical | 35 mph | 1021 mb | 37.2°N 156.6°W | open ocean |
| Aug 22 12:00 | TD extratropical | 35 mph | 1021 mb | 37.6°N 156.3°W | open ocean |
| Aug 22 18:00 | TD extratropical | 35 mph | 1021 mb | 38.2°N 155.8°W | open ocean |
| Aug 23 00:00 | TD extratropical | 35 mph | 1021 mb | 38.9°N 154.9°W | open ocean |
| Aug 23 06:00 | TD extratropical | 35 mph | 1021 mb | 39.7°N 153.7°W | open ocean |
⬇ Download track data (CSV) · public-domain NOAA best track
Questions
No — the NOAA best-track record shows no landfall for Guillermo.
At its peak on August 15, 2009, Guillermo was a Category 3 hurricane with maximum sustained winds of 127 mph (204 km/h) and a central pressure of 954 mb.
11.3 days, from August 12, 2009 to August 23, 2009, including 72 hours at hurricane strength (18 as a major hurricane). It travelled about 3,874 miles.
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.
This site was built by Digital Dynamics Kft.
This archive is our own work, built from openly available data — the NOAA best-track records, the replay engine, the wind-field rendering and the map tiles served from our own servers in the European Union. If your business generates data — measurements, machines, orders, customers — we are happy to turn it into a clear, interactive interface.
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