The SummaryTyphoon Haima (international code 200421) is a 2004 Northwest Pacific typhoon; peak intensity Tropical Storm, max wind 18m/s, minimum central pressure 998hPa, not in China Landfall, 2004-09-13 was numbered off, recording 16 track points.
Typhoon Haima, international code 200421, international name HAIMA, 2004 Northwest Pacific typhoon. Formed: 2004-09-11 14:00:00, ended: 2004-09-13 17:00:00. Peak intensity: Tropical Storm, minimum central pressure: 998 hPa, max wind: 18m/s.
Typhoon Haima at 2004-09-11 14:00:00 at 23°N, 121.5°E over the Northwest Pacific; initial intensity: Nameless.
It peaked at Tropical Storm intensity with max winds of 18 m/s (~65 km/h) and a minimum central pressure of 998hPa, recorded at 2004-09-12 02:00:00.
2004-09-13 17:00:00 After, Typhoon Haima gradually weakened and was numbered off on 2004-09-13 17:00:00 was numbered off; its lifecycle recorded 16 track points.
The life history of the 21st Typhoon “Haima” in 2004 is short, from formed to dispersed only about 51h. Its path overall shows a stable toward NWTrend, with no noticeable Landfall behavior or a sharp turn toward . Initial phase (September 11, 14-20) , system position at Taiwan Island in the E area (about 23°N, 121.5°E) , Moving speed relatively slow, mainly toward NE direction. Go to the morning of September 12, with the intensity enhanced to Tropical Storm, its Moving direction gradually shifted to N to NW direction.
It is worth noting that the Typhoon during the period of September 12th 05 to 17th, the length oscillated slightly between 121.9°E to 122.2°E, the latitude then steadily advanced from 24.9°N to 25.7°N, showing the characteristics of stability on N under the sub-tropical high-pressure edge guided. From September 13th, the path marked toward W deviation, the length rapidly declined from 121.9°EW to 120.4°E, indicating that the system was affected by the late period of the W wind belt or peripheral air flow, turned toward NW and eventually weakened dispersion in the sea area of Taiwan Strait N. The entire track points distribution is compact, no abnormal rotation or stagnation phenomenon.
The system at 12 September at 02 am intensified into Tropical Storm, reached peak intensity, at this time the center's minimum air pressure was 998hPa, max windined at 18m/s. Then until 13 September at 11 am, its intensity remained highly stable, air pressure alwaysined at 998hPa, wind speed constant at 18m/s, no further deepening or significant fluctuation.
The 22nd Typhoon “Haima” in 2016 had developed into a Super Typhoon, with a minimum pressure of 905hPa, which is extremely destructive; even the 4th Typhoon “Haima” in 2011 has a peak air pressure of 985hPa.
| Time | The latitude | During | Intensity | Wind (m/s) | Pressure (hPa) | Moving toward |
|---|---|---|---|---|---|---|
| 2004-09-11 14:00:00 | 23°N | 121.5°E | Nameless | 15 | 1000 | N |
| 2004-09-11 20:00:00 | 23.3°N | 121.9°E | Nameless | 15 | 1000 | NNE |
| 2004-09-12 02:00:00 | 24.4°N | 122.2°E | Tropical Storm | 18 | 998 | N |
| 2004-09-12 05:00:00 | 24.9°N | 122.2°E | Tropical Storm | 18 | 998 | N |
| 2004-09-12 08:00:00 | 25.2°N | 122°E | Tropical Storm | 18 | 998 | NW |
| 2004-09-12 11:00:00 | 25.5°N | 121.9°E | Tropical Storm | 18 | 998 | N |
| 2004-09-12 14:00:00 | 25.5°N | 122.1°E | Tropical Storm | 18 | 998 | |
| 2004-09-12 17:00:00 | 25.7°N | 122.1°E | Tropical Storm | 18 | 998 | |
| 2004-09-12 20:00:00 | 26.1°N | 122.1°E | Tropical Storm | 18 | 998 | |
| 2004-09-12 23:00:00 | 26.5°N | 122.1°E | Tropical Storm | 18 | 998 | |
| 2004-09-13 02:00:00 | 26.8°N | 121.9°E | Tropical Storm | 18 | 998 | |
| 2004-09-13 05:00:00 | 27.2°N | 121.7°E | Tropical Storm | 18 | 998 | |
| 2004-09-13 08:00:00 | 27.7°N | 121.4°E | Tropical Storm | 18 | 998 | |
| 2004-09-13 11:00:00 | 27.8°N | 121°E | Tropical Storm | 18 | 998 | |
| 2004-09-13 14:00:00 | 28.1°N | 120.8°E | Nameless | 15 | 1005 | |
| 2004-09-13 17:00:00 | 28.5°N | 120.4°E | Nameless | 12 | 1008 |
Typhoon Haima's international code is 200421, is 2004 number 21 Typhoon, international name HAIMA.
Typhoon Haima peak intensity is Tropical Storm, max wind 18m/s, minimum central pressure 998 hPa.
According to records, Typhoon Haima is not in our coastal Landfall.
TyphoonSays (taifengshuo.com) provides typhoon Haima's Track history map, multinational meteorological agency Forecast comparison, wind range with IntensityTrend, page address: https://taifengshuo.com/typhoon/200421.
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