{"id":12308,"date":"2023-12-28T14:48:28","date_gmt":"2023-12-28T22:48:28","guid":{"rendered":"https:\/\/www.aorafting.com\/blog\/?p=12308"},"modified":"2026-01-09T16:35:40","modified_gmt":"2026-01-10T00:35:40","slug":"el-nino-and-california-rafting","status":"publish","type":"post","link":"https:\/\/www.aorafting.com\/blog\/el-nino-and-california-rafting\/","title":{"rendered":"El Ni\u00f1o and California Rafting"},"content":{"rendered":"<div id=\"bsf_rt_marker\"><\/div><p>\r\n<i class=\"fa-regular fa-clock\" aria-hidden=\"true\"><\/i> <span class=\"bsf-rt-reading-time\"><span class=\"bsf-rt-display-label\" prefix=\"Reading Time\">\n\t\t<\/span> <span class=\"bsf-rt-display-time\" reading_time=\"4\"><\/span> \n\t\t<span class=\"bsf-rt-display-postfix\" postfix=\"mins\"><\/span><\/span>\r\n<\/p>\n\n\n\n<p>When meteorologists and newscasters start mentioning El Ni\u00f1o, California rafters perk up and take notice. That\u2019s because this climate pattern that occurs thousands of miles away in the Pacific Ocean can have significant impacts on California snowpack and rain totals, and thus the whitewater rafting season in the coming year.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-first-things-first-what-actually-is-el-nino\">First things first &#8211; What actually is El Ni\u00f1o?<\/h2>\n\n\n\n<p>El Ni\u00f1o is a phase in the El Ni\u00f1o-Southern Oscillation (ENSO) which is a climate phenomenon characterized by periodic fluctuations in sea surface temperatures and atmospheric conditions in the equatorial Pacific region. Normally, the trade winds blow from east to west, pushing warm surface waters toward the western Pacific, and resulting in cooler waters along the coast of South America. During an El Ni\u00f1o event, there is a reversal of these typical conditions. Trade winds weaken or outright reverse and allow the accumulated warm water in the western Pacific to migrate eastward. This switcharoo influences weather and climate around the world in various ways. Specifically, what are the effects on the conditions in California?<\/p>\n\n\n<div class=\"su-spacer\" style=\"height:20px\"><\/div>\n\n\n<div class=\"wp-block-image wp-caption\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"573\" src=\"https:\/\/www.aorafting.com\/blog\/wp-content\/uploads\/2023\/12\/sea-surface-temp-anomoly.png\" alt=\"surface air temperature anomaly in El Nino\" class=\"wp-image-12309\" srcset=\"https:\/\/www.aorafting.com\/blog\/wp-content\/uploads\/2023\/12\/sea-surface-temp-anomoly.png 1000w, https:\/\/www.aorafting.com\/blog\/wp-content\/uploads\/2023\/12\/sea-surface-temp-anomoly-300x172.png 300w, https:\/\/www.aorafting.com\/blog\/wp-content\/uploads\/2023\/12\/sea-surface-temp-anomoly-768x440.png 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">A map of sea surface temperature anomaly in the Pacific Ocean during a strong El Ni\u00f1o in December 1997 (image source: NOAA)<\/figcaption><\/figure>\n<\/div>\n\n<div class=\"su-spacer\" style=\"height:20px\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-does-el-nino-affect-california-weather\">How does El Ni\u00f1o affect California weather?<\/h2>\n\n\n\n<p>Since most El Ni\u00f1os typically peak between November and January, their strongest influence on California weather is in the winter months. The Pacific jet stream and storm tracks tend to shift southward, often bringing higher-than-average amounts of snow and rain into the Golden State &#8211; especially the central and southern portions. Warmer ocean temperatures can also help develop atmospheric rivers &#8211; those narrow bands of moisture that can drop considerable amounts of precipitation into the region. Just a handful of such atmospheric rivers can shape the overall outcome of the entire wet season (October-April), depending on their strength and their aim. Most of California&#8217;s rafting rivers originate in the Central Sierra Nevada, so storms hitting this region tend to have the biggest impact.<\/p>\n\n\n<div class=\"su-spacer\" style=\"height:20px\"><\/div>\n\n\n<div class=\"wp-block-image wp-caption\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"573\" src=\"https:\/\/www.aorafting.com\/blog\/wp-content\/uploads\/2023\/12\/el-nino-effects-north-america.png\" alt=\"El Nino Effects in North America\" class=\"wp-image-12312\" srcset=\"https:\/\/www.aorafting.com\/blog\/wp-content\/uploads\/2023\/12\/el-nino-effects-north-america.png 1000w, https:\/\/www.aorafting.com\/blog\/wp-content\/uploads\/2023\/12\/el-nino-effects-north-america-300x172.png 300w, https:\/\/www.aorafting.com\/blog\/wp-content\/uploads\/2023\/12\/el-nino-effects-north-america-768x440.png 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Typical wintertime El Ni\u00f1o weather pattern on the North American continent (image source: NOAA)<\/figcaption><\/figure>\n<\/div>\n\n<div class=\"su-spacer\" style=\"height:20px\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-does-el-nino-guarantee-more-water-for-rafting\">Does El Ni\u00f1o guarantee more water for rafting?<\/h2>\n\n\n\n<p>Now, if only the equation of \u2018<em>El Ni\u00f1o winter = big snowpack = exceptional California rafting season ahead<\/em>\u2019 was unfailingly accurate! The fact is, weather is complicated and a strong El Ni\u00f1o doesn\u2019t always result in above-average snowpack and big whitewater ahead. Sometimes the storms get funneled further south or further north along the West Coast, bypassing the watersheds that feed California whitewater rivers. Other times, a mix of oceanic and atmospheric variables diffuse the effects of El Ni\u00f1o altogether. Additionally, scientists are only beginning to understand how climate change influences these events as the Earth keeps getting warmer.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-past-el-nino-years-compared-to-california-rafting-seasons\">Past El Ni\u00f1o years compared to California rafting seasons<\/h2>\n\n\n\n<p>Over our <a href=\"https:\/\/www.aorafting.com\/aboutao\/welcome.htm\">60+ years of rafting on California rivers<\/a>, we\u2019ve seen extra wet years, extra dry years, and everything in between. Not all of the big snowpack years were El Ni\u00f1o years and not all El Ni\u00f1o years experienced a large snowpack. We have learned first-hand that while El Ni\u00f1o brings an increased potential for above-average precipitation, this does not always pan out. In fact, one of the recent very strong El Ni\u00f1o winters of 2015-16 left us with below-average snowpack statewide. On the other hand, the most recent <a href=\"https:\/\/www.aorafting.com\/blog\/whitewater-pros-big-snowpack-leads-to-epic-california-rafting\/\">big water year<\/a> of 2023 did not have an El Ni\u00f1o connection at all.<\/p>\n\n\n<div class=\"su-spacer\" style=\"height:20px\"><\/div>\n\n\n<div class=\"wp-block-image wp-caption\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"573\" src=\"https:\/\/www.aorafting.com\/blog\/wp-content\/uploads\/2023\/12\/ca-snow-pack-el-nino-data.png\" alt=\"El Ni\u00f1o years highlighted against California snowpack data.\" class=\"wp-image-12313\" srcset=\"https:\/\/www.aorafting.com\/blog\/wp-content\/uploads\/2023\/12\/ca-snow-pack-el-nino-data.png 1000w, https:\/\/www.aorafting.com\/blog\/wp-content\/uploads\/2023\/12\/ca-snow-pack-el-nino-data-300x172.png 300w, https:\/\/www.aorafting.com\/blog\/wp-content\/uploads\/2023\/12\/ca-snow-pack-el-nino-data-768x440.png 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">El Ni\u00f1o years highlighted against California snowpack data.<\/figcaption><\/figure>\n<\/div>\n\n<div class=\"su-spacer\" style=\"height:20px\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-el-nino-or-not-a-great-california-rafting-season-ahead\">El Ni\u00f1o or not &#8211; A great California rafting season ahead<\/h2>\n\n\n\n<p>California whitewater rafting is dependent on climate and weather. We need winter storms coming from the Pacific Ocean to hit the mountain walls of the Sierra Nevada, drop precipitation, and feed our beautiful rivers. Above-average rainfall and snowpack &#8211; whether a result of El Ni\u00f1o or not &#8211; are often seen as the ultimate rafter\u2019s dream but a snowpack bonanza is not necessarily required for an amazing whitewater rafting season. That is because many of the <a href=\"https:\/\/www.aorafting.com\/river\/welcome.htm\">10 California rivers<\/a> we raft on have high-elevation reservoirs that can release water stored from previous winters on a set schedule. Dam-controlled rivers, such as the South and Middle Fork American, Tuolumne, and Cherry Creek \/ Upper Tuolumne allow us to have a full rafting season with a wide range of trip options (Class 1 through Class 5) even in <a href=\"https:\/\/www.aorafting.com\/blog\/drought-theres-still-water-rafting\/\">years of below-average snowpack<\/a>.<\/p>\n\n\n<div class=\"su-spacer\" style=\"height:20px\"><\/div>\n\n\n<div class=\"wp-block-image wp-caption\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"573\" src=\"https:\/\/www.aorafting.com\/blog\/wp-content\/uploads\/2023\/12\/california-rafting-tuolumne.jpg\" alt=\"The Class 4+ Tuolumne River \" class=\"wp-image-12314\" srcset=\"https:\/\/www.aorafting.com\/blog\/wp-content\/uploads\/2023\/12\/california-rafting-tuolumne.jpg 1000w, https:\/\/www.aorafting.com\/blog\/wp-content\/uploads\/2023\/12\/california-rafting-tuolumne-300x172.jpg 300w, https:\/\/www.aorafting.com\/blog\/wp-content\/uploads\/2023\/12\/california-rafting-tuolumne-768x440.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">The Class 4+ Tuolumne River offers world-class whitewater in any type of season thanks to scheduled water releases from upstream reservoirs.<\/figcaption><\/figure>\n<\/div>\n\n<div class=\"su-spacer\" style=\"height:20px\"><\/div>\n\n\n\n<p>While it is exciting to hear reports of an El Ni\u00f1o winter and what it may mean for the upcoming rafting season, in the end, it is only one of the factors that affect us. As we&#8217;ve done every year since 1962, we embrace whatever winter weather comes our way and turn it into an exciting and memorable rafting season. (Learn more about how we <a href=\"https:\/\/www.aorafting.com\/blog\/forecasting-rafting-flows-on-california-rivers\/\">predict California river flows for rafting<\/a>). So, get ready for laughs, thrilling rapids, and the joy of exploring the breathtaking California rivers with the All-Outdoors family!<\/p>\n\n\n<div class=\"su-spacer\" style=\"height:40px\"><\/div>\n\n\n\n<div class=\"post-author\">\n      <div class=\"container-fluid\">\r\n    <em><small>Posted on December 28, 2023 by<\/small><\/em>\r\n    <div class=\"author-bio\">\r\n\t    <div class=\"col-sm-3\"><img decoding=\"async\" src=\"\/blog\/wp-content\/uploads\/2023\/09\/lenka.png\" class=\"author-avatar img-responsive\" alt=\"Lenka Bostian Bio\" \/><\/div>\r\n\t    <div class=\"col-sm-9\">\r\n        <h3>Lenka Bostian<\/h3>\r\n\t\t<p>Lenka started working for All-Outdoors in the summer of 2005 when she followed her heart from her native Czech Republic out to California. After graduating college in Prague, she packed up her degree in International Business and moved across the pond for good. She\u2019s been part of the AO family ever since, wearing different hats along the way. Besides trail running, tennis, and traveling, Lenka enjoys rafting and camping on the South Fork with her hubby (former AO guide) and their twin boys.<\/p> \r\n    <\/div>\r\n        <div class=\"clearfix\"><\/div>\r\n    <\/div>\r\n<\/div>\t  \n<\/div>","protected":false},"excerpt":{"rendered":"<p>Curious about El Ni\u00f1o&#8217;s impact on California whitewater rafting? Find out what it means for your next adventure on the river by looking at the typical weather patterns and examining past snowpack data.<\/p>\n","protected":false},"author":692,"featured_media":12315,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[117],"tags":[],"class_list":["post-12308","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-river-news-flows-events"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.6 (Yoast SEO v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>El Ni\u00f1o and California Rafting<\/title>\n<meta name=\"description\" content=\"When meteorologists start mentioning El Ni\u00f1o, California rafters take notice because of its potential impact on California snowpack.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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