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The 1985 Pacific hurricane season is the third most active Pacific hurricane season on record. It officially started on May 15, 1985 in the eastern Pacific, and on June 1, 1985 in the central Pacific, and lasted until November 30, 1985. These dates conventionally delimit the period of each year when most tropical cyclones form in the northeastern Pacific Ocean. At the time, the 1985 season was the most active on record in the eastern north Pacific, with 28 tropical cyclones forming. Of those, 24 were named, 13 reached hurricane intensity, and 8 became major hurricanes by attaining Category 3 status or higher on the Saffir-Simpson Hurricane Scale. At that time, the 24 named storms was a record; however, this record was broken seven years later in 1992, and was therefore recognized as the second most busiest season within the basin, until it was surpassed exactly thirty years later by the 2015 season. Despite the activity, only one system made landfall in 1985. Hurricane Waldo caused moderate damage in Northwestern Mexico and one death in Kansas. Surf from Hurricanes Pauline and Rick caused minor damage in Hawaii. Hurricane Nele resulted in disruption in the Northwestern Hawaiian Islands, while Hurricane Ignacio threatened Hawaii, but only ended up producing light rainfall and minimal damage. ==Seasonal summary== ImageSize = width:800 height:205 PlotArea = top:10 bottom:80 right:20 left:20 Legend = columns:3 left:30 top:58 columnwidth:270 AlignBars = early DateFormat = dd/mm/yyyy Period = from:01/06/1985 till:01/12/1985 TimeAxis = orientation:horizontal ScaleMinor = grid:black unit:month increment:1 start:01/06/1985 Colors = id:canvas value:gray(0.88) id:GP value:red id:TD value:rgb(0.38,0.73,1) legend:Tropical_Depression_=_<39_mph_(0-62_km/h) id:TS value:rgb(0,0.98,0.96) legend:Tropical_Storm_=_39-73_mph_(63-117 km/h) id:C1 value:rgb(1,1,0.80) legend:Category_1_=_74-95_mph_(118-153_km/h) id:C2 value:rgb(1,0.91,0.46) legend:Category_2_=_96-110_mph_(154-177_km/h) id:C3 value:rgb(1,0.76,0.25) legend:Category_3_=_111-130_mph_(178-209-km/h) id:C4 value:rgb(1,0.56,0.13) legend:Category_4_=_131-155_mph_(210-249_km/h) id:C5 value:rgb(1,0.38,0.38) legend:Category_5_=_>=156_mph_(>=250_km/h) Backgroundcolors = canvas:canvas BarData = barset:Hurricane bar:Month PlotData= barset:Hurricane width:11 align:left fontsize:S shift:(4,-4) anchor:till from:05/06/1985 till:12/06/1985 color:TS text:"Andres" from:06/06/1985 till:16/06/1985 color:C3 text:"Blanca" from:07/06/1985 till:10/06/1985 color:TS text:"Carlos" from:26/06/1985 till:05/07/1985 color:C3 text:"Dolores" from:27/06/1985 till:05/07/1985 color:TS text:"Enrique" from:02/07/1985 till:06/07/1985 color:TS text:"Fefa" from:07/07/1985 till:12/07/1985 color:TS text:"Guillermo" barset:break from:11/07/1985 till:12/07/1985 color:TD text:"Eight" from:18/07/1985 till:20/07/1985 color:TS text:"Hilda" from:20/07/1985 till:29/07/1985 color:C4 text:"Jimena" from:21/07/1985 till:27/07/1985 color:C4 text:"Ignacio" from:29/07/1985 till:06/08/1985 color:TS text:"Kevin" from:29/07/1985 till:08/08/1985 color:TS text:"Linda" from:06/08/1985 till:13/08/1985 color:C1 text:"Marty" barset:break from:19/08/1985 till:23/08/1985 color:TS text:"Nora" from:20/08/1985 till:22/08/1985 color:TD text:"One-C" from:22/08/1985 till:31/08/1985 color:C1 text:"Olaf" from:27/08/1985 till:09/09/1985 color:C1 text:"Pauline" from:30/08/1985 till:31/08/1985 color:TS text:"Skip" from:01/09/1985 till:12/09/1985 color:C4 text:"Rick" from:05/09/1985 till:17/09/1985 color:C3 text:"Sandra" barset:break from:15/09/1985 till:24/09/1985 color:C3 text:"Terry" from:18/09/1985 till:21/09/1985 color:TS text:"Vivian" from:01/10/1985 till:02/10/1985 color:TD text:"Twenty-Two" from:07/10/1985 till:09/10/1985 color:C2 text:"Waldo" from:23/10/1985 till:30/10/1985 color:C1 text:"Nele" from:25/10/1985 till:05/11/1985 color:C3 text:"Xina" from:21/11/1985 till:21/11/1985 color:TD text:"Twenty-Five" bar:Month width:5 align:center fontsize:S shift:(0, -20) anchor:middle color:canvas from:01/06/1985 till:01/07/1985 text:June from:01/07/1985 till:01/08/1985 text:July from:01/08/1985 till:01/09/1985 text:August from:01/09/1985 till:01/10/1985 text:September from:01/10/1985 till:01/11/1985 text:October from:01/11/1985 till:01/12/1985 text:November TextData = pos:(570,30) text:"(From the" pos:(617,30) text:"Saffir-Simpson Hurricane Scale)" This year, 25 tropical cyclones formed in the eastern north Pacific (140°W to North America). Of those systems, three never strengthened beyond the depression stage, while 22 were named. This total was 6 storms above the 1966-1985 average〔 7 above the 1971-2006 average and 9 above the 1949-2006 average of 13. With a total 26 tropical cyclones and 24 named storms,〔〔 this season was the most active on record, breaking the short-lived record held by the 1983 Pacific hurricane season,〔Gunther & Cross 1932〕 though the 1992 Pacific hurricane season then broke and surpassed this record. This season is now the third-most active, being recently also surpassed by the 2015 Pacific hurricane season, which is now the second-most active overall. Of the named systems, 10 peaked as tropical storms, 12 as hurricanes, and 8 reached the intensity of major hurricanes by attaining Category 3 strength or higher on the Saffir-Simpson hurricane wind scale. The season lasted 170 days, three days longer than the 1984 Pacific hurricane season, but still then days longer than normal. The Eastern Pacific Hurricane Center (EPHC) issued 620 bulletins during the season, 35 more than the previous season.〔 In the Central Pacific Hurricane Center's area of responsibility (140°W to the International dateline), three tropical cyclones formed. One of those stayed as a tropical depression through its life. One strengthened into a hurricane, and another crossed into the northwestern Pacific before eventually returning to the central Pacific.〔 Although meteorologists expected a below-normal season, the season got on to a fast start〔 though no storms formed in May. The activity picked up significantly thereafter, with 5 storms forming in June, including one major hurricane. By the middle of July, a total of 10 storms had formed with another tropical storm forming off the coast of Central America roughly every 10 days. Within two more weeks, 13 tropical storms or hurricanes had formed, including 4 major hurricanes. By August 23, 2 more storms had been named. By early September, a total of 17 named storms had developed, 6 of which became hurricanes. Roughly two weeks later, two additional named storms were classified. After a lull in late September and early October, a total of 22 storms had formed by mid-October 21 of which developed in the EPHC's area of responsibility and the list of names was exhausted, forcing the agency to request emergency names.〔 The cause of the high activity in 1985 is unknown; however, this year continued a trend of above average season that began in 1981. The hurricane season took place during a La Nina event,〔(【引用サイトリンク】title=Historical El Nino/La Nina episodes (1950-present) )〕 which tends to inhibit Pacific hurricane activity. However, 1985 was during a warm phase of the Pacific Decadal Oscillation and in the middle of an era where all but one pacific hurricane season was near or above average.〔 Several storms were investigated by Hurricane Hunter aircraft in 1985;〔 the first was on July 24 during Hurricane Ignacio. On September 10, a flight was made into Hurricane Rick, where the storms lowest pressure was recorded.〔 Hurricane Sandra was investigated on September 12 on the way from Hawaii, where the hunters were on standby. The final two flights of the season were made on September 21 and 22 into Hurricane Terry while the storm was located off the west coast of the Baja California Peninsula. In addition to Hurricane Hunter aircraft, the National Weather Service satellite station provided the basin with adequate satellite converge. The earlier loss of a GOES-East satellite and the move of a GOES-west satellite further west had little effect on EPHC operations. Enhanced Infrared imagery was especially useful in determining cold-core centers.〔 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「1985 Pacific hurricane season」の詳細全文を読む スポンサード リンク
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