Hurricane Greg (1999)
Hurricane Greg reached Category 1 in the Eastern Pacific between September 5, 1999 and September 9, 1999, with a lowest pressure of 986 mb, and made landfall.
Track and intensity
The whole track of Hurricane Greg, colored by strength, with the other storms of the 1999 season in the same basin behind it, and its wind and pressure hour by hour. Every fix is in the track table below.
The storm
- Basin
- Eastern Pacific
- Dates
- September 5, 1999 to September 9, 1999
- Peak strength
- Category 1, 65 kt (75 mph)
- Lowest pressure
- 986 mb (29.12 inHg)
- Landfall
- Yes
- Accumulated cyclone energy
- 3.4
- Fastest the center moved
- 12 kt (14 mph)
- Identifier
- EP121999
Deaths and damage
No source this site reads carries a casualty or damage figure for this storm.
Landfall
| Time (UTC) | Where | Position | Wind | Pressure |
|---|---|---|---|---|
| Sep 7, 21:00 | Colonia del Sol, Baja California Sur, Mexico, 8 km away | 22.9N 110.0W | 50 kt (58 mph) | 994 mb |
Landfall points the US agencies flagged in the best track. The nearest town is named from the site’s gazetteer, not from the report.
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Sep 5, 00:00 | 16.9N 104.5W | 25 kt | Not reported | |
| Sep 5, 06:00 | 18.0N 104.8W | 25 kt | Not reported | |
| Sep 5, 12:00 | 18.6N 105.1W | 30 kt | 1008 mb | Tropical depression |
| Sep 5, 18:00 | 19.2N 105.4W | 40 kt | 1005 mb | Tropical storm |
| Sep 6, 00:00 | 19.9N 106.0W | 45 kt | 1000 mb | Tropical storm |
| Sep 6, 06:00 | 20.6N 106.7W | 50 kt | 997 mb | Tropical storm |
| Sep 6, 12:00 | 21.2N 107.6W | 55 kt | 994 mb | Tropical storm |
| Sep 6, 18:00 | 21.5N 108.4W | 65 kt | 987 mb | Hurricane |
| Sep 7, 00:00 | 21.9N 109.0W | 65 kt | 986 mb | Hurricane |
| Sep 7, 06:00 | 22.2N 109.5W | 65 kt | 987 mb | Hurricane |
| Sep 7, 12:00 | 22.5N 109.5W | 65 kt | 987 mb | Hurricane |
| Sep 7, 18:00 | 22.8N 109.7W | 55 kt | 994 mb | Tropical storm |
| Sep 7, 21:00 landfall | 22.9N 110.0W | 50 kt | 994 mb | Tropical storm |
| Sep 8, 00:00 | 23.1N 110.3W | 45 kt | 1000 mb | Tropical storm |
| Sep 8, 06:00 | 23.1N 110.8W | 40 kt | 1005 mb | Tropical storm |
| Sep 8, 12:00 | 23.0N 111.1W | 35 kt | 1006 mb | Tropical storm |
| Sep 8, 18:00 | 23.0N 111.3W | 30 kt | 1008 mb | Tropical depression |
| Sep 9, 00:00 | 23.2N 111.5W | 30 kt | 1008 mb | Tropical depression |
| Sep 9, 06:00 | 23.2N 111.8W | 25 kt | 1008 mb | Tropical depression |
| Sep 9, 12:00 | 23.2N 112.0W | 25 kt | 1008 mb | Tropical depression |
| Sep 9, 18:00 | 23.2N 112.3W | 20 kt | 1009 mb | Tropical depression |
Other Eastern Pacific storms of 1999
- Hurricane AdrianEastern Pacific · 1999
- Hurricane BeatrizEastern Pacific · 1999
- Unnamed tropical depressionEastern Pacific · 1999
- Unnamed tropical depressionEastern Pacific · 1999
- Tropical Storm CalvinEastern Pacific · 1999
- Unnamed tropical depressionEastern Pacific · 1999
- Hurricane DoraEastern Pacific · 1999
- Hurricane EugeneEastern Pacific · 1999
- Unnamed tropical depressionEastern Pacific · 1999
- Tropical Storm FernandaEastern Pacific · 1999
- Hurricane TanyaEastern Pacific · 1999
- Unnamed tropical depressionEastern Pacific · 1999
- Hurricane HilaryEastern Pacific · 1999
- Tropical Storm IrwinEastern Pacific · 1999
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.