Typhoon Grace Route Analysis
Track and Movement Characteristics
Typhoon Grace (197213) 的生命史始 at 1972年9月11日00时, formed at Northwest Pacific洋面 (14.9°N, 128°E) , 初始状态为Tropical Depression. 在生命初期, 系统呈现明显的W行Trend, at 9月11日至12日期间快速 toward WMoving, 经度从128°E迅速推进至125.5°E. 值得注意的是, 该系统在9月12日12时达到Intensity巅峰, 升级为Severe Tropical Storm, max wind 达25m/s, 此时位 at 15.2°N, 125.5°E附近.
然而, 巅峰状态并未维持长久. 自9月13日起, typhoon track出现显著转折, 由W行转为E退, 并在随后的几天内呈现出复杂的“回旋”或“摆动”特征. 9月14日至15日, 系统 toward E折返至130°E以E海域; 9月16日短暂N抬至16.2°N后, 再次转 toward SW. 这种在大范围海域内的往复运动表明, 当时引导气流较弱或存在多系统相互作用, 导致Typhoon Moving路径极不稳定. 直至9月17日后, 系统才重新确立稳定的W行路径, 逐渐 toward Philippines以E海域靠近, 最终 at 9月20日00时在15.5°N, 121.8°E weakened into Tropical Depression并结束观测. 整个生命周期长达10天, track points多达37个, 且全程无Landfall记录, 属 at 典型的远洋徘徊型Typhoon .
Intensity evolution and historical comparison
From the perspective of the Intensity evolution, Grace showed the characteristics of 'fast-moving, overall weakened.' The system was strengthened to Severe Tropical Storm level (25m/s) in only about 36h after formed, but then rapidly weakened. September 13th, namely, decreased to Tropical Storm, September 14th evening further weakened into Tropical Depression. In the subsequent week of Time (September 15th to September 19th) , its center Max Wind alwaysined between 12m/s to 17m/s, failed to get significant reinforcement again, showing that the deep pair structure may be limited by vertical windshift or sea temperature conditions, difficult to maintain a high Intensity core.
Data show that the 1964 Grace (196409) and the 1975 Grace (197516) peak intensity were Severe Tropical Storm, with the 1972 case, while the 1961 Grace (196112) peak was only Tropical Storm, intensity weak at this year.
Typhoon Grace routes
| Time | Position | Intensity | Wind · Pressure | Moving Toward |
|---|
| 09-11 02:00 | 15°N
130°E | Tropical Depression | 10 m/s
1006 hPa | - |
| 09-11 08:00 | 15.2°N
129.2°E | Tropical Depression | 10 m/s
1006 hPa | WNW |
| 09-11 14:00 | 15.6°N
128.2°E | Tropical Depression | 10 m/s
1006 hPa | WNW |
| 09-11 20:00 | 15.5°N
127.2°E | Tropical Depression | 10 m/s
1004 hPa | W |
| 09-12 02:00 | 15.5°N
126.7°E | Tropical Depression | 12 m/s
1000 hPa | W |
| 09-12 08:00 | 15.5°N
126.2°E | Tropical Depression | 15 m/s
995 hPa | W |
| 09-12 14:00 | 15.4°N
125.8°E | Tropical Storm | 20 m/s
989 hPa | WSW |
| 09-12 20:00 | 15.3°N
125.4°E | Severe Tropical Storm | 25 m/s
990 hPa | WSW |
| 09-13 02:00 | 15.1°N
125°E | Severe Tropical Storm | 25 m/s
991 hPa | WSW |
| 09-13 08:00 | 14.9°N
124.9°E | Severe Tropical Storm | 25 m/s
992 hPa | SSW |
| 09-13 14:00 | 14.8°N
124.7°E | Severe Tropical Storm | 25 m/s
994 hPa | WSW |
| 09-13 20:00 | 14.7°N
124.4°E | Tropical Storm | 20 m/s
996 hPa | WSW |
| 09-14 02:00 | 14.4°N
124.6°E | Tropical Storm | 20 m/s
996 hPa | SSE |
| 09-14 08:00 | 14.2°N
125.3°E | Tropical Storm | 20 m/s
998 hPa | ESE |
| 09-14 14:00 | 14.1°N
126.2°E | Tropical Depression | 15 m/s
1000 hPa | E |
| 09-14 20:00 | 13.9°N
127.2°E | Tropical Depression | 10 m/s
1004 hPa | ESE |
FAQ
Typhoon Grace is the 1972 Typhoon.
Typhoon Grace's international code is 197213, is 1972's 13th Typhoon, international name GRACE.
What is the highest level of Typhoon Grace?
Typhoon Grace peak intensity is Severe Tropical Storm, max wind 25m/s, minimum central pressure 989 hPa.
Typhoon Grace Landfall?
According to records, Typhoon Grace is not in our coastal landfall.
Where can I view typhoon Grace's live track map?
TyphoonSays (taifengshuo.com) provides typhoon Grace's Track history map, multinational meteorological agency Forecast comparison, windshield range with IntensityTrend, page address: https://taifengshuo.com/typhoon/197213.
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