| 翻訳と辞書 |
| Tropical Storm Rachel (1990) ： ウィキペディア英語版 |
Tropical Storm Rachel (1990)
Tropical Storm Rachel was the only tropical cyclone to make landfall during the 1990 Pacific hurricane season. The twenty-fourth tropical depression and eighteenth named storm, Rachel developed on September 27 from a tropical wave southwest of mainland Mexico. After becoming a tropical depression, the system tracked slowly southwestward and eventually curved northwestward. The depression intensified into a tropical storm after three days and was named ''Rachel'' by the National Hurricane Center. Rachel continued to steadily strengthen, and peaked as a strong 65 mph (100 km/h) tropical storm on October 2. After attaining peak intensity, Rachel re-curved to make a landfall in southern Baja California Sur and again in the Mexican Mainland on October 3. The storm produced heavy rainfall across northern Mexico and the Southwestern United States. Thousands of people were left homeless and 18 fatalities were reported.
==Meteorological history==
The origins of Rachel can be traced back to a tropical wave that moved off the west coast Africa in mid-September 1990.〔 It moved westward into the Caribbean Sea without significant development. Poorly organized, the wave entered the Eastern Pacific on overnight September 22. The thunderstorm activity became more concentrated two days later. Dvorak classifications, a technique used to estimate a tropical cyclone's intensity, began late September 25.〔
Early on September 27, the twenty-fourth tropical depression of the season had developed; however, operationally it was not warned upon until the system was located south of Baja California Sur on September 30. Post-analysis later confirm that Rachel was already a minimal tropical storm by that time. Although convection initially remained displaced from the center, Rachel steadily intensified.〔 Early on September 30, the National Hurricane Center (NHC) operationally upgraded the depression into Tropical Storm Rachel. While intensifying, an upper-level trough over California allowed Rachel to re-curve towards Mexico.〔 On October 2, it reached its peak intensity of 65 mph (100 km/h) and a minimum pressure of 994 mbar (hPa; 29.35 inHg).
After maintaining its intensity for 24 hours, Rachel made landfall at peak intensity near the southern tip of Baja California Sur.〔 Strong wind shear prevented additional intensification, despite moving into the warm waters of the Gulf of California. After weakening slightly,〔 Rachel made a second landfall midway between Las Mochis and Culiacán. Upon moving inland, the system rapidly weakened〔 as the forward speed increased. Rachel dissipated several hours later on October 3. By that time, the winds had decreased to 30 mph (45 km/h).〔 The remnants of Rachel entered the United States, and were last noted over Texas.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「Tropical Storm Rachel (1990)」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|