{"id":8190,"date":"2015-05-05T11:44:16","date_gmt":"2015-05-05T06:14:16","guid":{"rendered":"http:\/\/www.gujaratweather.com\/wordpress\/?p=8190"},"modified":"2023-06-25T09:04:38","modified_gmt":"2023-06-25T03:34:38","slug":"weak-el-nino-continues-to-exist-april-2015-update-5th-may-2015","status":"publish","type":"post","link":"https:\/\/www.gujaratweather.com\/?p=8190","title":{"rendered":"Weak El Nino Continues To Exist April 2015 \u2013 Update 5th May 2015"},"content":{"rendered":"

El Nino Update on 5th May 2015<\/h3>\n

<\/h3>\n

Full fledged EL Nino was confirmed at the end of March 2015 when the five consecutive 3 monthly seasons had ONI index of +0.5 C or higher. February, March & April 2015 SST anomaly for Nino3.4 region is used to calculate the ONI Index for FMA as\u00a0+0.6 .<\/h3>\n

As per NOAA Officially El Nino is declared as per conditions laid down and shown in ONI Index graph below:<\/h3>\n

El Ni\u00f1o: characterized by a positive ONI greater than or equal to +0.5\u00baC. La Ni\u00f1a: characterized by a negative ONI less than or equal to -0.5\u00baC. By historical standards, to be classified as a full-fledged El Ni\u00f1o or La Ni\u00f1a episode, these thresholds must be exceeded for a period of at least 5 consecutive overlapping 3-month seasons.<\/h3>\n

 <\/p>\n

\"ONI_FMA_2015\"<\/a><\/h3>\n

 <\/p>\n

The respective ONI Index are SON 2014= +0.5\u00baC\u00a0and OND 2014 = +0.7\u00baC, NDJ 2015=0.7\u00baC, \u00a0DJF 2015=0.6\u00baC, JFM 2015=0.5\u00baC &\u00a0FMA 2015=0.6\u00baC.<\/h3>\n

CPC had issued an El Nino Advisory on 5th March 2015 in anticipation that\u00a0JFM 2015 ONI would be\u00a00.5\u00baC or more.<\/h3>\n

CPC considers El Ni\u00f1o or La Ni\u00f1a conditions to occur when the monthly Ni\u00f1o3.4 OISST departures meet or exceed +\/- 0.5\u00b0C along with consistent atmospheric features. These anomalies must also be forecasted to persist for 3 consecutive months.<\/h3>\n

Southern Oscillation Index<\/h3>\n

 <\/p>\n

\n

The Southern Oscillation Index (SOI) had moved to negative zone from neutral zone during March 2015. However, the latest 30-day SOI value from BOM-Australian Government for period ending\u00a026 April is \u22123.6<\/span>\u00a0which denotes neutral zone.<\/h3>\n

\"soi30_02052015\"<\/a><\/p>\n<\/div>\n

<\/h3>\n

 <\/p>\n

<\/h3>\n

SOI Monthly graph till end of April 2015 – The Long Paddock – Queensland Government. The Latest April 2015 30 days SOI was -3.1 .<\/h3>\n

\"2015_April\"<\/a><\/p>\n

This is the only El Nino to have been declared as full fledged El nino at the end of March of any year from 1950 on wards.<\/h3>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

El Nino Update on 5th May 2015 Full fledged EL Nino was confirmed at the end of March 2015 when the five consecutive 3 monthly seasons had ONI index of +0.5 C or higher. February, March & April 2015 SST Read More …<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,7],"tags":[],"class_list":["post-8190","post","type-post","status-publish","format-standard","hentry","category-enso","category-ashok-patel-weather"],"_links":{"self":[{"href":"https:\/\/www.gujaratweather.com\/index.php?rest_route=\/wp\/v2\/posts\/8190","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gujaratweather.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gujaratweather.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gujaratweather.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gujaratweather.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8190"}],"version-history":[{"count":0,"href":"https:\/\/www.gujaratweather.com\/index.php?rest_route=\/wp\/v2\/posts\/8190\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.gujaratweather.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8190"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gujaratweather.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8190"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gujaratweather.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8190"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}