Track map & timeline · Eastern Pacific · July 2–14, 1971
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
Hurricane Denise (1971) was a Category 4 hurricane of the 1971 Eastern Pacific season. It formed on July 2, 1971, 361 mi SSW of Puerto Escondido, Oaxaca, Mexico, reached its peak of 138 mph (222 km/h) and a minimum pressure of 951 mb on July 9, 1971, and never made landfall. It rapidly intensified by 46 mph in 24 hours (to 138 mph on July 9, 1971). The storm lasted 11.5 days and travelled about 3,964 miles (6,378 km).
02 · Intensity
03 · Timeline
| Date · UTC | Status | Wind | Pressure | Position | Nearest place |
|---|---|---|---|---|---|
| Jul 2 12:00 | TD | 29 mph | — | 10.8°N 98.4°W | open ocean |
| Jul 2 18:00 | TD | 29 mph | — | 11.1°N 99.0°W | open ocean |
| Jul 3 00:00 | TD | 29 mph | — | 11.3°N 99.7°W | open ocean |
| Jul 3 06:00 | TD | 29 mph | — | 11.6°N 100.7°W | open ocean |
| Jul 3 12:00 | TD | 29 mph | — | 12.0°N 101.8°W | open ocean |
| Jul 3 18:00 | TD | 29 mph | — | 12.5°N 103.3°W | open ocean |
| Jul 4 00:00 | TD | 29 mph | — | 12.8°N 104.9°W | open ocean |
| Jul 4 06:00 | TD | 29 mph | — | 12.9°N 105.6°W | open ocean |
| Jul 4 12:00 | TS | 52 mph | — | 12.9°N 106.4°W | open ocean |
| Jul 4 18:00 | TS | 52 mph | — | 12.9°N 107.6°W | open ocean |
| Jul 5 00:00 | TS | 52 mph | — | 12.9°N 108.9°W | open ocean |
| Jul 5 06:00 | TS | 52 mph | — | 12.9°N 109.8°W | open ocean |
| Jul 5 12:00 | TS | 69 mph | — | 12.9°N 110.8°W | open ocean |
| Jul 5 18:00 | TS | 69 mph | — | 12.9°N 111.8°W | open ocean |
| Jul 6 00:00 | TS | 69 mph | — | 12.8°N 112.8°W | open ocean |
| Jul 6 06:00 | TS | 69 mph | — | 12.8°N 114.0°W | open ocean |
| Jul 6 12:00 | TS | 69 mph | — | 12.8°N 115.2°W | open ocean |
| Jul 6 18:00 | Cat 1 | 81 mph | — | 12.7°N 116.4°W | open ocean |
| Jul 7 00:00 | Cat 1 | 81 mph | — | 12.6°N 117.5°W | open ocean |
| Jul 7 06:00 | Cat 1 | 81 mph | — | 12.6°N 118.4°W | open ocean |
| Jul 7 12:00 | Cat 1 | 81 mph | — | 12.5°N 119.2°W | open ocean |
| Jul 7 18:00 | Cat 1 | 92 mph | 963 mb | 12.3°N 120.4°W | open ocean |
| Jul 8 00:00 | Cat 1 | 92 mph | — | 12.2°N 121.7°W | open ocean |
| Jul 8 06:00 | Cat 1 | 92 mph | — | 12.1°N 123.2°W | open ocean |
| Jul 8 12:00 | Cat 1 | 92 mph | — | 12.0°N 124.8°W | open ocean |
| Jul 8 18:00 | Cat 3 | 127 mph | 951 mb | 12.0°N 126.5°W | open ocean |
| Jul 9 00:00 | Cat 3 | 127 mph | — | 12.1°N 128.2°W | open ocean |
| Jul 9 06:00 | Cat 4 | 138 mph | — | 12.2°N 129.9°W | open ocean |
| Jul 9 12:00 | Cat 4 | 138 mph | — | 12.5°N 131.5°W | open ocean |
| Jul 9 18:00 | Cat 3 | 115 mph | — | 13.0°N 132.9°W | open ocean |
| Jul 10 00:00 | Cat 3 | 115 mph | — | 13.6°N 134.2°W | open ocean |
| Jul 10 06:00 | Cat 3 | 115 mph | — | 14.0°N 135.7°W | open ocean |
| Jul 10 12:00 | Cat 3 | 115 mph | — | 14.5°N 137.3°W | open ocean |
| Jul 10 18:00 | Cat 3 | 115 mph | — | 15.2°N 139.1°W | open ocean |
| Jul 11 00:00 | Cat 2 | 109 mph | — | 16.0°N 140.8°W | open ocean |
| Jul 11 06:00 | Cat 2 | 109 mph | — | 16.5°N 141.9°W | open ocean |
| Jul 11 12:00 | Cat 2 | 104 mph | — | 17.0°N 142.9°W | open ocean |
| Jul 11 18:00 | Cat 1 | 86 mph | — | 17.5°N 143.8°W | open ocean |
| Jul 12 00:00 | Cat 1 | 81 mph | — | 17.9°N 144.8°W | open ocean |
| Jul 12 06:00 | Cat 1 | 81 mph | — | 18.1°N 146.2°W | open ocean |
| Jul 12 12:00 | Cat 1 | 75 mph | — | 17.8°N 147.7°W | open ocean |
| Jul 12 18:00 | TS | 46 mph | — | 17.4°N 149.6°W | open ocean |
| Jul 13 00:00 | TS | 40 mph | — | 17.1°N 151.5°W | open ocean |
| Jul 13 06:00 | TS | 40 mph | — | 17.0°N 152.7°W | open ocean |
| Jul 13 12:00 | TS | 40 mph | — | 16.8°N 153.8°W | open ocean |
| Jul 13 18:00 | TD | 29 mph | — | 16.6°N 154.7°W | open ocean |
| Jul 14 00:00 | TD | 29 mph | — | 16.2°N 155.7°W | open ocean |
⬇ Download track data (CSV) · public-domain NOAA best track
Questions
No — the NOAA best-track record shows no landfall for Denise.
At its peak on July 9, 1971, Denise was a Category 4 hurricane with maximum sustained winds of 138 mph (222 km/h) and a central pressure of 951 mb.
11.5 days, from July 2, 1971 to July 14, 1971, including 144 hours at hurricane strength (54 as a major hurricane). It travelled about 3,964 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.
But this is not all we build:
Or anything else that can be programmed — just get in touch.
See our work → or write: info@digitaldynamics.hu