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1949 Pacific hurricane season
The 1949 Pacific hurricane season was the first hurricane season in the Eastern Pacific hurricane database. Six tropical cyclones were known to have existed during the season, of which the first formed on June 11 and the final dissipated on September 30. Another tropical cyclone had formed within the basin in 1949, but was included in the Atlantic hurricane database, had it been classified operationally in the Eastern Pacific basin, would have tallied the overall season to seven tropical cyclones. In addition, there were two tropical cyclones that attained hurricane status, but none of them reached major hurricane intensity (Category 3 or higher on the Saffir-Simpson Hurricane Scale). Tropical Storm Three threatened the Baja California Peninsula, while an unnumbered hurricane crossed into the Atlantic, later becoming the 1949 Texas hurricane.
==Season summary==
Tropical cyclones were recorded in the Eastern Pacific best track database for the first time in 1949. Although official records began in the Eastern Pacific during this year, the season saw the first officially recorded Atlantic-Pacific crossover tropical cyclone.〔 This season was also beginning of a cool phase for the Pacific Decadal Oscillation.
Only six tropical cyclones were observed in the Eastern Pacific during this season, which is well below the 1949–2006 average of 13 per year. Of the six tropical cyclones, two only attained hurricane status. In addition, none of the tropical cyclones became a major hurricane, which is Category 3 or greater on Saffir–Simpson Hurricane Scale. Although it is an oddity for no major hurricanes to occur during a season since the satellite era began, nearly all hurricane seasons during this time period lacked a major hurricane. However, it is likely that other tropical cyclones in the Eastern Pacific basin in 1949 went operationally unnoticed, due to lack of modern technology such as satellite imagery.〔 In addition to the six tropical cyclones, another tropical cyclone developed in the Eastern Pacific basin, but was included in the Atlantic basin hurricane database, rather than the Eastern Pacific. Most of the seven tropical cyclones did not differentiate in intensity during the duration,〔 with the exception of Hurricane Six.〔 The first two tropical cyclones of the season formed in quick succession in during mid-June, however, the months of July and August went dormant in terms of tropical cyclogenesis. The last five tropical cyclones, including the additional storm, also developed in a quick sequence, all of which forming from in a span of 17 days. By October 1, all tropical cyclonic activity had completely ceased.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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