Tropical Storm Irwin (1999)
Tropical Storm Irwin peaked at 50 kt in the Eastern Pacific between October 7, 1999 and October 11, 1999, with a lowest pressure of 996 mb.
Track and intensity
The whole track of Tropical Storm Irwin, 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
- October 7, 1999 to October 11, 1999
- Peak strength
- Tropical Storm, 50 kt (58 mph)
- Lowest pressure
- 996 mb (29.41 inHg)
- Landfall
- No; closest approach 124 km (77 mi)
- Accumulated cyclone energy
- 1.7
- Fastest the center moved
- 10 kt (12 mph)
- Identifier
- EP141999
Deaths and damage
No source this site reads carries a casualty or damage figure for this storm.
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Oct 7, 18:00 | 16.2N 104.9W | 25 kt | Not reported | |
| Oct 8, 00:00 | 16.6N 104.9W | 25 kt | Not reported | |
| Oct 8, 06:00 | 16.9N 105.0W | 25 kt | Not reported | |
| Oct 8, 12:00 | 17.3N 105.0W | 30 kt | 1005 mb | Tropical depression |
| Oct 8, 18:00 | 17.7N 105.1W | 35 kt | 1004 mb | Tropical storm |
| Oct 9, 00:00 | 18.1N 105.3W | 40 kt | 1000 mb | Tropical storm |
| Oct 9, 06:00 | 18.4N 105.7W | 45 kt | 998 mb | Tropical storm |
| Oct 9, 12:00 | 18.8N 106.4W | 45 kt | 998 mb | Tropical storm |
| Oct 9, 18:00 | 19.0N 107.1W | 50 kt | 996 mb | Tropical storm |
| Oct 10, 00:00 | 19.1N 108.0W | 50 kt | 997 mb | Tropical storm |
| Oct 10, 06:00 | 19.2N 109.0W | 45 kt | 998 mb | Tropical storm |
| Oct 10, 12:00 | 19.1N 110.0W | 40 kt | 1000 mb | Tropical storm |
| Oct 10, 18:00 | 18.9N 110.8W | 35 kt | 1003 mb | Tropical storm |
| Oct 11, 00:00 | 18.4N 111.3W | 30 kt | 1004 mb | Tropical depression |
| Oct 11, 06:00 | 18.0N 112.0W | 25 kt | 1007 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 GregEastern Pacific · 1999
- Hurricane HilaryEastern 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.