The SummaryTyphoon Sperry (international code 198703) is a 1987 Northwest Pacific typhoon; peak intensity Typhoon, max wind 38m/s, minimum central pressure 980hPa, not in China Landfall, 1987-07-02 was numbered off, recorded 30 track points.
Typhoon Sperry, international code 198703, international name SPERRY, 1987 Northwest Pacific typhoon. Formed: 1987-06-24 18:00:00, ended: 1987-07-02 00:00:00. Peak intensity: Typhoon , minimum central pressure: 980 hPa, max wind: 38m/s.
Typhoon Sperry at 1987-06-24 18:00:00 at 10°N, 149.7°E over the Northwest Pacific; initial intensity: Nameless.
It peaked at Typhoon intensity with max winds of 38 m/s (~137 km/h) and a minimum central pressure of 980hPa, recorded at 1987-06-28 18:00:00.
Typhoon Sperry gradually weakened and was numbered off on 1987-07-02 00:00:00 was numbered off; its lifecycle recorded 30 track points.
Typhoon Sperry (198703) 的生命史始 at Northwest Pacific远洋海域, 整体路径呈现典型的“NW行-转 toward NE”的抛物线形态. formed初期 (6月24日至26日) , 系统位 at 低The latitude海域 (10°N-12°N) , 受副热带高压S侧E气流引导, 稳定 toward NW, During从149.7°E快速W移至138.3°E. 6月27日至28日, 随着纬度N抬至13°N-16.4°N, Moving direction逐渐转为N, 并在135°E附近达到最W端Position.
When CenterN moved to 20.7°N, near 132°E, the system began to be affected by the W wind band, Moving pathway occurred a significant right turn, from NW toward to NE toward . after that, Typhoon accelerated toward High latitude sea area Moving, with the length rapid E retreat, and finally at July 2 at 32.4°N, weakened dispersal near 144.9°E. During the entire life cycle, the Typhoon did not landfall any land, always at sea activity.
Sperry's Intensity evolution underwent a complete 'formed-enhanced-top-weakened' process. June 24th was nameless (7m/s) , then steadily strengthened. June 27th at 06 am upgraded to Tropical Storm (23m/s) , only 12h later developed to Severe Tropical Storm (28m/s) . June 28th at 06 am, the center wind speed reached 33m/s, officially joined the Typhoon line, and at 18 am at 16.4°N, 134.2°E near peak intensity, max wind recorded 38m/s.
As the latitude continues to shift N and the sea water thermal conditions change, the intensity begins to slowly decline. June 30 at 06 am reduced to Severe Tropical Storm, at 18 am further weakened into Tropical Storm. Go to July after, the system rapidly weakened, July 1 at 06 am has fallen to the Nameless level, until extinction.
Compared with the same name History, Sperry's peak intensity (Typhoon level, 38m/s) high at 1983 Sperry (198321, peak only for Severe Tropical Storm) and at 1980 Sperry (198016, peak for Typhoon) at the same scale.
| Time | The latitude | During | Intensity | Wind (m/s) | Pressure (hPa) | Moving toward |
|---|---|---|---|---|---|---|
| 1987-06-24 18:00:00 | 10°N | 149.7°E | Nameless | 7 | - | |
| 1987-06-25 06:00:00 | 10.2°N | 146.6°E | Nameless | 10 | - | |
| 1987-06-25 18:00:00 | 10.8°N | 143.7°E | Nameless | 10 | - | |
| 1987-06-26 06:00:00 | 11.2°N | 140.7°E | Nameless | 12 | 1006 | |
| 1987-06-26 18:00:00 | 12.1°N | 138.3°E | Nameless | 15 | 1002 | |
| 1987-06-27 06:00:00 | 13°N | 136.7°E | Tropical Storm | 23 | 996 | |
| 1987-06-27 18:00:00 | 13.8°N | 135.8°E | Severe Tropical Storm | 28 | 985 | |
| 1987-06-28 06:00:00 | 14.9°N | 135°E | Typhoon | 33 | 985 | |
| 1987-06-28 18:00:00 | 16.4°N | 134.2°E | Typhoon | 38 | 985 | |
| 1987-06-29 06:00:00 | 18.3°N | 133.4°E | Typhoon | 35 | 985 | |
| 1987-06-29 18:00:00 | 20.7°N | 132°E | Typhoon | 33 | 980 | |
| 1987-06-30 06:00:00 | 23.3°N | 131.3°E | Severe Tropical Storm | 28 | 985 | |
| 1987-06-30 18:00:00 | 26.7°N | 131.7°E | Tropical Storm | 23 | 990 | |
| 1987-07-01 06:00:00 | 29.8°N | 134.6°E | Nameless | 17 | 992 | |
| 1987-07-01 18:00:00 | 32°N | 141.2°E | Nameless | 15 | 992 | |
| 1987-07-02 00:00:00 | 32.4°N | 144.9°E | Nameless | 12 | 994 |
Sampled rows shown; all 30 track points are available on the interactive map or via the public API .
Typhoon Sperry's international code is 198703, is the 3rd Typhoon of 1987, international name SPERRY.
Typhoon Sperry peak intensity is Typhoon , max wind 38m/s, minimum central pressure 980 hPa.
According to records, Typhoon Sperry is not in our coastal landfall.
TyphoonSays (taifengshuo.com) provides typhoon Sperry's Track history map, multinational meteorological agency Forecast comparison, wind range with IntensityTrend, page address: https://taifengshuo.com/typhoon/198703.
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