The SummaryTyphoon Betty (international code 198404) is a 1984 Northwest Pacific typhoon; peak intensity Severe Tropical Storm, max wind 28m/s, minimum central pressure 985hPa, not in China Landfall, 1984-07-09 was numbered off, recording 21 track points.
Typhoon Betty, international code 198404, international name BETTY, 1984 Northwest Pacific typhoon. Formed: 1984-07-04 18:00:00, ended: 1984-07-09 18:00:00. Peak intensity: Severe Tropical Storm, minimum central pressure: 985 hPa, max wind: 28m/s.
Typhoon Betty at 1984-07-04 18:00:00 at 14.7°N, 126.3°E over the Northwest Pacific; initial intensity: Nameless.
It peaked at Severe Tropical Storm intensity with max winds of 28 m/s (~101 km/h) and a minimum central pressure of 985hPa, recorded at 1984-07-08 18:00:00.
1984-07-09 18:00:00 After, Typhoon Betty gradually weakened and was numbered off on 1984-07-09 18:00:00 was numbered off; its lifecycle recorded 21 track points.
Typhoon Betty (198404)'s life history began at the Northwest Pacific Ocean, the overall path showed a stable NW toward MovingTrend, no apparent turn toward or reversal phenomenon. From the formed initial coordinate sequence analysis, the system at July 4 at 18 am at 14.7°N, 126.3°E near formed, then continued toward WN direction forward. During July 5 to July 6, the Typhoon's central latitude increased slightly from 14.5°N slowly to 15.9°N, the length then dispersed from 125.0°EW to 120.2°E, Moving speed relatively flat and straight path. Go to July 7 after, the system with the gradual approach to S SeaN, its N quantity increased slightly, the thermal path toward toward to N.
In terms of Intensity changes, Betty showed the characteristics of 'slow enhancement, rapid weakening'. the systemined NamelessIntensity during the first 48h after formed, wind speedined between 10-12m/s. Until July 7 at 18, Max Wind near the center increased to 20m/s, officially upgraded to Tropical Storm. Then at July 8 at 06 at Severe Tropical Storm level, and at July 8 at 18 to 9:00 at peak intensity, max wind was 28m/s. It is worth noting that the peak stateined Time was shorter, since July 9 at 06 a.m., the system rapidly weakened, wind speed dropped from 25m/s within 12h to 12m/s, and the final level dropped to Nameless and dispersed.
Data showed that in 1987, 1980 and 1972 the same name Typhoon Betty had reached Super Typhoon level, and in 1975 Betty also reached Severe Typhoon level.
| Time | The latitude | During | Intensity | Wind (m/s) | Pressure (hPa) | Moving toward |
|---|---|---|---|---|---|---|
| 1984-07-04 18:00:00 | 14.7°N | 126.3°E | Nameless | 12 | 1006 | |
| 1984-07-05 00:00:00 | 14.5°N | 125°E | Nameless | 12 | 1006 | |
| 1984-07-05 06:00:00 | 14.6°N | 123.8°E | Nameless | 12 | 1004 | |
| 1984-07-05 12:00:00 | 14.8°N | 122.8°E | Nameless | 12 | 1004 | |
| 1984-07-05 18:00:00 | 15.1°N | 121.8°E | Nameless | 12 | 1004 | |
| 1984-07-06 00:00:00 | 15.5°N | 120.9°E | Nameless | 10 | 1004 | |
| 1984-07-06 06:00:00 | 15.9°N | 120.2°E | Nameless | 10 | 1002 | |
| 1984-07-06 12:00:00 | 16.3°N | 119.4°E | Nameless | 12 | 1002 | |
| 1984-07-06 18:00:00 | 16.8°N | 118.6°E | Nameless | 12 | 1000 | |
| 1984-07-07 00:00:00 | 17.2°N | 117.9°E | Nameless | 15 | 1000 | |
| 1984-07-07 06:00:00 | 17.6°N | 117.3°E | Nameless | 15 | 998 | |
| 1984-07-07 12:00:00 | 18.1°N | 116.6°E | Nameless | 17 | 996 | |
| 1984-07-07 18:00:00 | 18.6°N | 116.2°E | Tropical Storm | 20 | 994 | |
| 1984-07-08 00:00:00 | 19°N | 115.7°E | Tropical Storm | 23 | 992 | |
| 1984-07-08 06:00:00 | 19.6°N | 115°E | Severe Tropical Storm | 25 | 992 | |
| 1984-07-08 12:00:00 | 20.1°N | 114°E | Severe Tropical Storm | 25 | 990 | |
| 1984-07-08 18:00:00 | 20.7°N | 113.1°E | Severe Tropical Storm | 28 | 990 | |
| 1984-07-09 00:00:00 | 21.3°N | 112.3°E | Severe Tropical Storm | 28 | 985 | |
| 1984-07-09 06:00:00 | 22°N | 111°E | Severe Tropical Storm | 25 | 985 | |
| 1984-07-09 12:00:00 | 22.4°N | 109.7°E | Nameless | 17 | 994 | |
| 1984-07-09 18:00:00 | 22.7°N | 108.5°E | Nameless | 12 | 998 |
Typhoon Betty's international code is 198404, is 1984's 4th Typhoon, international name BETTY.
Typhoon Betty peak intensity is Severe Tropical Storm, max wind 28m/s, minimum central pressure 985 hPa.
According to records, Typhoon Betty is not in our coastal landfall.
TyphoonSays (taifengshuo.com) provides typhoon Betty's Track history map, multinational meteorological agency Forecast comparison, wind range with IntensityTrend, page address: https://taifengshuo.com/typhoon/198404.
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