Typhoon Olga (1999)
Typhoon Olga reached Category 1 in the Western Pacific between July 26, 1999 and August 5, 1999, with a lowest pressure of 970 mb, and made landfall.
Radar
Reflectivity now over Typhoon Olga. Open it to see storms, cones and warnings on the map.























Radar mosaic and map layers from NOAA MRMS. Boundaries from the Iowa Environmental Mesonet.
The storm
- Basin
- Western Pacific
- Dates
- July 26, 1999 to August 5, 1999
- Peak strength
- Category 1, 80 kt (92 mph)
- Lowest pressure
- 970 mb (28.64 inHg)
- Landfall
- Yes
- Accumulated cyclone energy
- 8.3
- Identifier
- WP111999
Deaths and damage
No source this site reads carries a casualty or damage figure for this storm.
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Jul 26, 18:00 | 5.5N 138.7E | 20 kt | Not reported | |
| Jul 27, 00:00 | 5.9N 138.5E | 20 kt | Not reported | |
| Jul 27, 06:00 | 6.7N 138.1E | 20 kt | Not reported | |
| Jul 27, 12:00 | 7.3N 137.9E | 20 kt | Not reported | |
| Jul 27, 18:00 | 8.2N 137.5E | 20 kt | Not reported | |
| Jul 28, 00:00 | 9.3N 136.8E | 20 kt | Not reported | |
| Jul 28, 06:00 | 10.0N 136.2E | 20 kt | Not reported | |
| Jul 28, 12:00 | 10.9N 135.6E | 20 kt | Not reported | |
| Jul 28, 18:00 | 11.7N 135.2E | 20 kt | Not reported | |
| Jul 29, 00:00 | 12.5N 134.8E | 25 kt | 1000 mb | Tropical storm |
| Jul 29, 06:00 | 13.5N 134.4E | 30 kt | 1000 mb | Tropical storm |
| Jul 29, 12:00 | 14.4N 134.0E | 30 kt | 1000 mb | Tropical storm |
| Jul 29, 18:00 | 15.5N 133.7E | 35 kt | 998 mb | Tropical storm |
| Jul 30, 00:00 | 16.9N 133.6E | 40 kt | 996 mb | Tropical storm |
| Jul 30, 06:00 | 18.9N 133.3E | 40 kt | 994 mb | Tropical storm |
| Jul 30, 12:00 | 20.3N 132.4E | 45 kt | 990 mb | Tropical storm |
| Jul 30, 18:00 | 21.0N 131.8E | 55 kt | 985 mb | Tropical storm |
| Jul 31, 00:00 | 21.7N 131.2E | 60 kt | 985 mb | Tropical storm |
| Jul 31, 06:00 | 22.7N 130.8E | 60 kt | 985 mb | Tropical storm |
| Jul 31, 12:00 | 23.2N 130.4E | 65 kt | 985 mb | Tropical storm |
| Jul 31, 18:00 | 23.7N 130.0E | 70 kt | 980 mb | Tropical storm |
| Aug 1, 00:00 | 24.7N 129.2E | 70 kt | 980 mb | Tropical storm |
| Aug 1, 06:00 | 25.5N 128.7E | 75 kt | 975 mb | Tropical storm |
| Aug 1, 12:00 | 26.4N 127.9E | 65 kt | 970 mb | Tropical storm |
| Aug 1, 18:00 | 27.2N 127.2E | 75 kt | 975 mb | Tropical storm |
| Aug 2, 00:00 | 27.8N 126.5E | 75 kt | 975 mb | Tropical storm |
| Aug 2, 06:00 | 28.7N 126.3E | 75 kt | 975 mb | Tropical storm |
| Aug 2, 12:00 | 30.0N 126.0E | 80 kt | 975 mb | Tropical storm |
| Aug 2, 18:00 | 31.6N 126.0E | 75 kt | 975 mb | Tropical storm |
| Aug 3, 00:00 | 33.5N 126.0E | 70 kt | 975 mb | Tropical storm |
| Aug 3, 06:00 | 35.7N 126.3E | 70 kt | 975 mb | Tropical storm |
| Aug 3, 12:00 | 37.4N 126.5E | 55 kt | 985 mb | Tropical storm |
| Aug 3, 18:00 | 40.0N 126.5E | 35 kt | 990 mb | Mixed |
| Aug 4, 00:00 | 41.8N 126.5E | 25 kt | 996 mb | Mixed |
| Aug 4, 06:00 | 45.1N 126.8E | 998 mb | Mixed | |
| Aug 4, 12:00 | 46.7N 127.2E | 1000 mb | Mixed | |
| Aug 4, 18:00 | 48.3N 128.1E | 1000 mb | Extratropical | |
| Aug 5, 00:00 | 49.7N 129.8E | 1000 mb | Extratropical | |
| Aug 5, 06:00 | 50.9N 131.1E | 996 mb | Extratropical |
Other Western Pacific storms of 1999
- Unnamed tropical stormWestern Pacific · 1999
- Tropical Storm IrisWestern Pacific · 1999
- Unnamed tropical stormWestern Pacific · 1999
- Typhoon KateWestern Pacific · 1999
- Typhoon LeoWestern Pacific · 1999
- Typhoon MaggieWestern Pacific · 1999
- Unnamed tropical depressionWestern Pacific · 1999
- Unnamed tropical depressionWestern Pacific · 1999
- Unnamed tropical depressionWestern Pacific · 1999
- Unnamed tropical depressionWestern Pacific · 1999
- Tropical Storm NeilWestern Pacific · 1999
- Unnamed tropical depressionWestern Pacific · 1999
- Tropical Storm PaulWestern Pacific · 1999
- Tropical Storm RachelWestern Pacific · 1999
- Unnamed tropical depressionWestern Pacific · 1999
- Unnamed tropical depressionWestern Pacific · 1999
- Typhoon SamWestern Pacific · 1999
- Unnamed tropical depressionWestern Pacific · 1999
- Typhoon VirgilWestern Pacific · 1999
- Tropical Storm WendyWestern Pacific · 1999
- Typhoon YorkWestern Pacific · 1999
- Tropical Storm ZiaWestern Pacific · 1999
- Tropical Storm AnnWestern Pacific · 1999
- Super Typhoon BartWestern Pacific · 1999
- Tropical Storm CamWestern Pacific · 1999
- Typhoon DanWestern Pacific · 1999
- Tropical Storm EveWestern Pacific · 1999
- Unnamed tropical depressionWestern Pacific · 1999
- Tropical Storm FrankieWestern Pacific · 1999
- Typhoon GloriaWestern Pacific · 1999
- Unnamed tropical depressionWestern Pacific · 1999
- Unnamed tropical depressionWestern Pacific · 1999
- Unnamed tropical depressionWestern 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.