The SummaryTyphoon Irma (international code 197427) is a 1974 Northwest Pacific typhoon; peak intensity Super Typhoon, max wind 59m/s, minimum central pressure 940hPa, not in China Landfall, 1974-12-03 was numbered off, recording 53 track points.
Typhoon Irma, international code 197427, international name IRMA, 1974 Northwest Pacific typhoon. Formed: 1974-11-20 00:00:00, ended: 1974-12-03 00:00:00. Peak intensity: Super Typhoon, minimum central pressure: 940 hPa, max wind: 59m/s.
Typhoon Irma at 1974-11-20 00:00:00 at 8.2°N, 145.7°E over the Northwest Pacific; initial intensity: Nameless.
It peaked at Super Typhoon intensity with max winds of 59 m/s (~212 km/h) and a minimum central pressure of 940hPa, recorded at 1974-11-26 12:00:00.
Typhoon Irma gradually weakened and was numbered off on 1974-12-03 00:00:00 was numbered off; its lifecycle recorded 53 track points.
Typhoon Irma (197427) 的生命史始 at Northwest Pacific远洋海域, 整体路径呈现显著的W行Trend, 后期伴随轻微N折. formed初期 (11月20日至22日) , 系统位 at 8.2°N至10.8°N, 145.7°E至140.5°E之间, 维持NamelessIntensity, toward NW direction缓慢Moving. 随后, 气旋加速W进, at 11月23日至27日期间穿越Philippines以E洋面, The latitude稳定在11.9°N至15.7°N区间, During从139.5°E快速W移至126.4°E, 显示出稳定的引导气流作用.
From November 28 to 30, the center latitudeined at 15.4°N to 15.5°N near, almost presented as W toward toward across the S Sea N section. From December 1, affected by environmental field changes, the path began toward N deviation, from 111.9°E, 18.6°NMoving to 116°E, 23.5°N, eventually dispersed in ChinaSEcoastal to E ocean to weaken.
The Typhoon underwent a complete 'formed-enhanced-top-weakened' process. November 23 intensified into Severe Tropical Storm, November 24 upgraded to Typhoon, November 25 reached Severe Typhoon level. November 26 to 27 was the intensity peak, max wind reached 53m/s and 59m/s respectively, confirmed Super Typhoon level, of which 27 recorded its highest wind speed.
In 1985, the same name Typhoon peak intensity in 1988 and 1993, respectively Severe Typhoon, Severe Tropical Storm and Severe Tropical Storm, did not reach the Super Typhoon level.
| Time | The latitude | During | Intensity | Wind (m/s) | Pressure (hPa) | Moving toward |
|---|---|---|---|---|---|---|
| 1974-11-20 00:00:00 | 8.2°N | 145.7°E | Nameless | 12 | - | |
| 1974-11-20 18:00:00 | 8.4°N | 143.6°E | Nameless | 12 | - | |
| 1974-11-21 12:00:00 | 9.7°N | 141.6°E | Nameless | 12 | 1000 | |
| 1974-11-22 06:00:00 | 11.1°N | 140.4°E | Nameless | 15 | 994 | |
| 1974-11-23 00:00:00 | 11.9°N | 139.5°E | Severe Tropical Storm | 25 | 990 | |
| 1974-11-23 18:00:00 | 13.4°N | 137.2°E | Typhoon | 33 | 975 | |
| 1974-11-24 12:00:00 | 14.5°N | 134.4°E | Typhoon | 38 | 965 | |
| 1974-11-25 06:00:00 | 15.2°N | 132.8°E | Severe Typhoon | 46 | 950 | |
| 1974-11-26 00:00:00 | 15.7°N | 130.8°E | Super Typhoon | 53 | 940 | |
| 1974-11-26 18:00:00 | 15.7°N | 127.6°E | Super Typhoon | 59 | 940 | |
| 1974-11-27 12:00:00 | 15.6°N | 124.3°E | Super Typhoon | 53 | 940 | |
| 1974-11-28 06:00:00 | 15.2°N | 120.6°E | Typhoon | 35 | 985 | |
| 1974-11-29 00:00:00 | 15.5°N | 117.5°E | Severe Tropical Storm | 30 | 980 | |
| 1974-11-29 18:00:00 | 15.9°N | 114.4°E | Typhoon | 33 | 985 | |
| 1974-11-30 12:00:00 | 17.1°N | 112.3°E | Typhoon | 38 | 970 | |
| 1974-12-01 06:00:00 | 19.4°N | 111.8°E | Severe Tropical Storm | 30 | 975 | |
| 1974-12-02 00:00:00 | 21.6°N | 113.1°E | Tropical Storm | 20 | 1002 | |
| 1974-12-02 18:00:00 | 23.3°N | 115°E | Nameless | 10 | 1008 | |
| 1974-12-03 00:00:00 | 23.5°N | 116°E | Nameless | 10 | 1010 |
Sampled rows shown; all 53 track points are available on the interactive map or via the public API .
Typhoon Irma's international code is 1974, typhoon number 27, international name IRMA.
Typhoon Irma peak intensity is Super Typhoon, max wind 59m/s, minimum central pressure 940 hPa.
According to records, Typhoon Irma is not in our coastal landfall.
TyphoonSays (taifengshuo.com) provides typhoon Irma's Track history map, multinational meteorological agency Forecast comparison, wind range with IntensityTrend, page address: https://taifengshuo.com/typhoon/197427.
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