The SummaryTyphoon Thelma (international code 197321) is a 1973 Northwest Pacific typhoon; peak intensity Severe Tropical Storm, max wind 28m/s, minimum central pressure 992hPa, not in China Landfall, 1973-11-18 was numbered off, recorded 19 track points.
Typhoon Thelma, international code 197321, international name THELMA, 1973 Northwest Pacific typhoon. Formed: 1973-11-14 00:00:00, ended: 1973-11-18 12:00:00. Peak intensity: Severe Tropical Storm, minimum central pressure: 992 hPa, max wind: 28m/s.
Typhoon Thelma at 1973-11-14 00:00:00 at 9.3°N, 118°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 992hPa, recorded at 1973-11-15 12:00:00.
1973-11-18 12:00:00 After, Typhoon Thelma gradually weakened and was numbered off on 1973-11-18 12:00:00 was numbered off; its lifecycle recorded 19 track points.
From November 14, 1973, 00:00 at (9.3°N, 118°E) begins as Nameless, the system as a wholeins toward WN. In the initial phase (14th, 00:00 to 15th, 00:00) , Typhoon center latitude from 9.3°N slowly up to 10°N, the length is rapidly W shift across about 6.3 lengths, showing a stable W directional flow function.
It is worth noting that after the system reached the most W-side Position near 12:00 on November 15, the Moving direction is fine-tuned. During 12:00 on November 15, the latitude is essentiallyined between 9.8°N and 9.9°N, the length continues to W, but the speed is slightly slowed, showing short-lived precision stagnation or microscopic oscillation characteristics. Then, from November 17, the path appears a marked N-tendence, the latitude gradually rises from 9.7°N to 10.8°N, until November 18, 12:00 at (10.8°N, 100.6°E) decreased dispersion.
“Thelma”的Intensity变化呈现出“快速增强, 短暂巅峰, 迅速减弱”的典型短命Typhoon 特征. 系统在 formed初期持续加强, 从14日00:00的12m/sNameless, 经过36h的发展, at 15日12:00达到peak intensity, 此时Max Wind为28m/s, 等级评定为Severe Tropical Storm. 然而, 巅峰状态维持Time极短, 仅6h后 (15日18:00) wind speed即降至23m/s, 降级为Tropical Storm. 此后系统Go to 持续减弱通道, 16日00:00进一步降格为Nameless, 并在剩余的生命史中维持10-12m/s的低Intensity状态, 直至消散.
Its peak intensity (Severe Tropical Storm, 28m/s) is weak at 1987's 4th 'Thelma' (Super Typhoon) and 1983's 22nd 'Thelma' (Severe Tropical Storm), but compared with 1980's 17th 'Thelma' (Severe Tropical Storm) and 1991's 25th 'Thelma' (Tropical Storm), the intensity is fairly or slightly strong.
| Time | The latitude | During | Intensity | Wind (m/s) | Pressure (hPa) | Moving toward |
|---|---|---|---|---|---|---|
| 1973-11-14 00:00:00 | 9.3°N | 118°E | Nameless | 12 | 1005 | |
| 1973-11-14 06:00:00 | 9.5°N | 116.8°E | Nameless | 15 | 1005 | |
| 1973-11-14 12:00:00 | 9.7°N | 115.2°E | Nameless | 17 | 1004 | |
| 1973-11-14 18:00:00 | 9.9°N | 113.6°E | Nameless | 17 | 1002 | |
| 1973-11-15 00:00:00 | 10°N | 111.7°E | Tropical Storm | 20 | 998 | |
| 1973-11-15 06:00:00 | 10°N | 110.1°E | Severe Tropical Storm | 25 | 992 | |
| 1973-11-15 12:00:00 | 9.9°N | 108.8°E | Severe Tropical Storm | 28 | 992 | |
| 1973-11-15 18:00:00 | 9.8°N | 108.3°E | Tropical Storm | 23 | 994 | |
| 1973-11-16 00:00:00 | 9.8°N | 108°E | Nameless | 17 | 996 | |
| 1973-11-16 06:00:00 | 9.8°N | 107.3°E | Nameless | 15 | 998 | |
| 1973-11-16 12:00:00 | 9.8°N | 106.4°E | Nameless | 12 | 998 | |
| 1973-11-16 18:00:00 | 9.7°N | 105.7°E | Nameless | 12 | 1002 | |
| 1973-11-17 00:00:00 | 9.7°N | 105.1°E | Nameless | 10 | 1004 | |
| 1973-11-17 06:00:00 | 9.7°N | 104.4°E | Nameless | 10 | 1004 | |
| 1973-11-17 12:00:00 | 9.8°N | 103.5°E | Nameless | 12 | 1004 | |
| 1973-11-17 18:00:00 | 9.9°N | 102.7°E | Nameless | 12 | 1004 | |
| 1973-11-18 00:00:00 | 10°N | 102°E | Nameless | 12 | 1004 | |
| 1973-11-18 06:00:00 | 10.4°N | 101.4°E | Nameless | 12 | 1006 | |
| 1973-11-18 12:00:00 | 10.8°N | 100.6°E | Nameless | 10 | 1006 |
International code for Typhoon Thelma is 197321, is the 1973 Typehoon number 21, international name THELMA.
Typhoon Thelma peak intensity is Severe Tropical Storm, max wind 28m/s, minimum central pressure 992 hPa.
According to records, the Typhoon Thelma is not in our coastal Landfall.
TyphoonSays (taifengshuo.com) provides typhoon Thelma's Track history map, multinational meteorological agency Forecast comparison, wind range with IntensityTrend, page address: https://taifengshuo.com/typhoon/197321.
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