{"id":597098,"date":"2026-11-10T16:00:00","date_gmt":"2026-11-10T05:00:00","guid":{"rendered":"https:\/\/science.nasa.gov\/earth\/earth-observatory\/autumn-mornings-bring-valley-fog\/"},"modified":"2026-11-10T16:00:00","modified_gmt":"2026-11-10T05:00:00","slug":"autumn-mornings-bring-valley-fog","status":"publish","type":"post","link":"https:\/\/www.vibewire.com.au\/?p=597098","title":{"rendered":"Autumn Mornings Bring Valley Fog"},"content":{"rendered":"<div id=\"\" class=\"hds-module hds-module-full alignfull wp-block-nasa-blocks-secondary-navigation\">\n<div class=\"hds-secondary-navigation-wrapper z-top width-100 padding-0\">\n<div id=\"\" class=\"hds-secondary-navigation width-full border-bottom-1px text-center hds-color-mode-dark hds-module hds-module-full alignfull wp-block-nasa-blocks-hdsnav\"><button type=\"button\" class=\"hds-secondary-nav-mobile-button display-flex tablet:display-flex desktop:display-none width-full flex-align-center bg-carbon-90 border-color-carbon-80 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src=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/esd\/eo\/images\/iotd\/2026\/autumn-mornings-bring-valley-fog\/usvalleyfog_tmo_20261108.jpg\" alt=\"\"><br \/>\n\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/esd\/eo\/images\/iotd\/2026\/autumn-mornings-bring-valley-fog\/usvalleyfog_vir2_20261108.jpg\" alt=\"\">\n\t\t\t\t<\/p>\n<div class=\"curtain-view-label-wrapper curtain-view-before\">\n\t\t\t\t\t<span class=\"curtain-view-label\">morning<\/span>\n\t\t\t\t<\/div>\n<div class=\"curtain-view-label-wrapper curtain-view-after\">\n\t\t\t\t\t<span class=\"curtain-view-label\">afternoon<\/span>\n\t\t\t\t<\/div>\n<\/p>\n<\/div>\n<p>\t\t\t<!-- toggle view --><\/p>\n<div class=\"toggle-comparison-parent\">\n\t\t\t\t<!-- if image_1 is active the show image_1 --><\/p>\n<div class=\"hds-media-wrapper margin-left-auto margin-right-auto\">\n<figure class=\"hds-media-inner hds-cover-wrapper hds-media-ratio-cover toggle-view-image toggle-view-before-image toggle-view-active\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1280\" height=\"1280\" src=\"https:\/\/assets.science.nasa.gov\/content\/dam\/science\/esd\/eo\/images\/iotd\/2026\/autumn-mornings-bring-valley-fog\/usvalleyfog_tmo_20261108.jpg\/jcr:content\/renditions\/cq5dam.web.1280.1280.jpeg\" class=\"attachment-medium_large size-medium_large\" alt=\"A natural-color satellite image from the morning shows white fog filling a branching network of river valleys, surrounded by brown and green terrain.\" style=\"transform: scale(1);transform-origin: 50% 50%;object-position: 50% 50%;object-fit: cover\" loading=\"eager\" \/><\/figure><figcaption class=\"hds-caption padding-y-2\">\n<div class=\"hds-caption-text p-sm margin-0\">A natural-color satellite image from the morning shows white fog filling a branching network of river valleys, surrounded by brown and green terrain.<\/div>\n<div class=\"hds-credits\">NASA Earth Observatory \/ Lauren Dauphin<\/div>\n<\/figcaption><\/div>\n<p>\t\t\t\t<!-- if image_2 is active the show image_2 --><\/p>\n<div class=\"hds-media-wrapper margin-left-auto margin-right-auto\">\n<figure class=\"hds-media-inner hds-cover-wrapper hds-media-ratio-cover toggle-view-image toggle-view-after-image\"><img decoding=\"async\" width=\"1280\" height=\"1280\" src=\"https:\/\/assets.science.nasa.gov\/content\/dam\/science\/esd\/eo\/images\/iotd\/2026\/autumn-mornings-bring-valley-fog\/usvalleyfog_vir2_20261108.jpg\/jcr:content\/renditions\/cq5dam.web.1280.1280.jpeg\" class=\"attachment-medium_large size-medium_large\" alt=\"A false-color satellite image from the afternoon shows the same area clear of fog, with rivers and lakes in dark blue winding through bright green vegetation.\" style=\"transform: scale(1);transform-origin: 50% 50%;object-position: 50% 50%;object-fit: cover\" loading=\"lazy\" \/><\/figure><figcaption class=\"hds-caption padding-y-2\">\n<div class=\"hds-caption-text p-sm margin-0\">A false-color satellite image from the afternoon shows the same area clear of fog, with rivers and lakes in dark blue winding through bright green vegetation.<\/div>\n<div class=\"hds-credits\">NASA Earth Observatory \/ Lauren Dauphin<\/div>\n<\/figcaption><\/div>\n<div class=\"toggle-button-container padding-1\">\n\t\t\t\t\t<button class=\"toggle-view-before-button toggle-comparison-view-active margin-right-1px\"><span class=\"toggle-view-before-label\">morning<\/span><\/button><button class=\"toggle-view-after-button margin-left-1px\"><span class=\"toggle-view-after-label\">afternoon<\/span><\/button>\n\t\t\t\t<\/div>\n<\/p>\n<\/div>\n<p>\t\t\t<!-- 2-up view --><\/p>\n<div class=\"two-up-view position-relative bg-carbon-10\">\n<div class=\"grid-row\">\n<div class=\"grid-col flex-3 padding-top-4 padding-bottom-4\">\n<div class=\"hds-media-wrapper margin-left-auto margin-right-auto\">\n<figure class=\"hds-media-inner hds-cover-wrapper hds-media-ratio-cover \"><img decoding=\"async\" width=\"1280\" height=\"1280\" src=\"https:\/\/assets.science.nasa.gov\/content\/dam\/science\/esd\/eo\/images\/iotd\/2026\/autumn-mornings-bring-valley-fog\/usvalleyfog_tmo_20261108.jpg\/jcr:content\/renditions\/cq5dam.web.1280.1280.jpeg\" class=\"attachment-medium_large size-medium_large\" alt=\"A natural-color satellite image from the morning shows white fog filling a branching network of river valleys, surrounded by brown and green terrain.\" style=\"transform: scale(1);transform-origin: 50% 50%;object-position: 50% 50%;object-fit: cover\" loading=\"lazy\" \/><\/figure><figcaption class=\"hds-caption padding-y-2\">\n<div class=\"hds-caption-text p-sm margin-0\">A natural-color satellite image from the morning shows white fog filling a branching network of river valleys, surrounded by brown and green terrain.<\/div>\n<div class=\"hds-credits\">NASA Earth Observatory \/ Lauren Dauphin<\/div>\n<\/figcaption><\/div>\n<\/p>\n<\/div>\n<div class=\"bg-spacesuit-white width-2px\"><\/div>\n<div class=\"grid-col flex-3 padding-top-4 padding-bottom-4\">\n<div class=\"hds-media-wrapper margin-left-auto margin-right-auto\">\n<figure class=\"hds-media-inner hds-cover-wrapper hds-media-ratio-cover \"><img decoding=\"async\" width=\"1280\" height=\"1280\" src=\"https:\/\/assets.science.nasa.gov\/content\/dam\/science\/esd\/eo\/images\/iotd\/2026\/autumn-mornings-bring-valley-fog\/usvalleyfog_vir2_20261108.jpg\/jcr:content\/renditions\/cq5dam.web.1280.1280.jpeg\" class=\"attachment-medium_large size-medium_large\" alt=\"A false-color satellite image from the afternoon shows the same area clear of fog, with rivers and lakes in dark blue winding through bright green vegetation.\" style=\"transform: scale(1);transform-origin: 50% 50%;object-position: 50% 50%;object-fit: cover\" loading=\"lazy\" \/><\/figure><figcaption class=\"hds-caption padding-y-2\">\n<div class=\"hds-caption-text p-sm margin-0\">A false-color satellite image from the afternoon shows the same area clear of fog, with rivers and lakes in dark blue winding through bright green vegetation.<\/div>\n<div class=\"hds-credits\">NASA Earth Observatory \/ Lauren Dauphin<\/div>\n<\/figcaption><\/div>\n<\/p>\n<\/div>\n<div class=\"curtain-view-label-wrapper curtain-view-before\">\n\t\t\t\t\t\t<span class=\"curtain-view-label\"><br \/>\n\t\t\t\t\t\t\tmorning\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n<div class=\"curtain-view-label-wrapper curtain-view-after\">\n\t\t\t\t\t\t<span class=\"curtain-view-label\"><br \/>\n\t\t\t\t\t\t\tafternoon\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n<\/p>\n<\/div>\n<\/div>\n<p>\t\t\t<!-- Under image content --><\/p>\n<div class=\"grid-row flex-row title-row padding-x-2 desktop:padding-x-0 padding-top-2\">\n<div class=\"grid-col-12 tablet:grid-col-6\">\n<p class=\"before-after-heading margin-bottom-1\">\n<h2 class=\"before-after-title margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t \t\t\t\t\t<\/h2>\n<p class=\"before-after-subheading margin-top-0\">\n<\/div>\n<div class=\"grid-col-12 tablet:grid-col-6 button-row margin-bottom-3 tablet:margin-bottom-0\">\n\t\t\t\t\t<!-- Update onClick handlers --><br \/>\n\t\t\t\t\t<button aria-label=\"Curtain view\" class=\"comparison-view curtain-view-button comparison-view-active padding-bottom-1 margin-left-1\">Curtain<\/button><button aria-label=\"Toggle view\" class=\"comparison-view toggle-view-button padding-bottom-1 margin-left-1\">Toggle<\/button><button aria-label=\"Two-Up view\" class=\"comparison-view two-up-view-button padding-bottom-1 margin-left-1\">2-Up<\/button>\t\t\t\t<\/div>\n<\/p>\n<\/div>\n<\/div>\n<p>\t\t<!-- Image detail area --><\/p>\n<div class=\"image-details-panel padding-x-0\">\n<div class=\"before-after-details-divider padding-y-2\">\n\t\t\t\t\t<!-- OnClick handleImageDetailsClick --><button class=\"image-details-toggle-button\"><span>Image Details<\/span><!-- style - if showImageDetails, then transform rotate(180deg), else none --><\/button>\n\t\t\t\t<\/div>\n<p>\t\t\t\t<!-- if showImageDetails, then display --><\/p>\n<div id=\"image-details\" class=\" padding-x-0\">\n<div class=\"grid-row\">\n<div class=\"grid-col flex-2\">\n<div class=\"image-details-wrapper\">\n\t\t\t\t\t\t\t\tOn November 8, 2026, low clouds traced the branching valleys of the Appalachian Plateau and the Cumberland River in the morning (left, natural color) then burned off by afternoon (right, false color). The images were acquired with the <a href=\"https:\/\/terra.nasa.gov\/about\/terra-instruments\/modis\" rel=\"noopener\">MODIS<\/a>\u00a0(Moderate Resolution Imaging Spectroradiometer) on NASA\u2019s\u00a0<a href=\"https:\/\/science.nasa.gov\/mission\/terra\/\" rel=\"noopener\">Terra<\/a>\u00a0satellite and the <a href=\"https:\/\/www.earthdata.nasa.gov\/data\/instruments\/viirs\" rel=\"noopener\">VIIRS<\/a>\u00a0(Visible Infrared Imaging Radiometer Suite) on <a href=\"https:\/\/science.nasa.gov\/mission\/jpss\/\" rel=\"noopener\">NOAA-21<\/a>, respectively. NASA Earth Observatory images by Lauren Dauphin.\t\t\t\t\t\t\t<\/div>\n<p>\t\t\t\t\t\t\t<!-- File List --><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p class=\"wp-block-paragraph\">On a cool November morning, low clouds traced the branching valleys of the Appalachian Plateau and the Cumberland River. By afternoon, they had faded, leaving clear skies over the autumn landscape.<\/p>\n<p class=\"wp-block-paragraph\">The change is visible in this pair of images from November 8, 2026. The <a href=\"https:\/\/terra.nasa.gov\/about\/terra-instruments\/modis\" rel=\"noopener\">MODIS<\/a>\u00a0(Moderate Resolution Imaging Spectroradiometer) on NASA\u2019s\u00a0<a href=\"https:\/\/science.nasa.gov\/mission\/terra\/\" rel=\"noopener\">Terra<\/a>\u00a0satellite acquired the left image that morning. In this natural-color view, low clouds appear white as they fill many of the valleys. Autumn vegetation appears in shades of brown and green.<\/p>\n<p class=\"wp-block-paragraph\">The <a href=\"https:\/\/www.earthdata.nasa.gov\/data\/instruments\/viirs\" rel=\"noopener\">VIIRS<\/a>\u00a0(Visible Infrared Imaging Radiometer Suite) on <a href=\"https:\/\/science.nasa.gov\/mission\/jpss\/\" rel=\"noopener\">NOAA-21<\/a> acquired the right image that afternoon, after the clouds had dissipated and exposed the rivers and lakes beneath them. This false-color view makes it easier to distinguish water (dark blue) from vegetation (bright green).<\/p>\n<p class=\"wp-block-paragraph\">The clouds appear to be fog, a type of cloud that <a href=\"https:\/\/www.nesdis.noaa.gov\/about\/k-12-education\/atmosphere\/whats-the-difference-between-fog-and-clouds\" rel=\"noopener\">forms near the ground<\/a>. Foggy mornings in the region are common this time of year. As nights lengthen, the ground has more time to radiate away the day\u2019s heat, and the air just above it cools to the <a href=\"https:\/\/glossary.ametsoc.org\/wiki\/dewpoint\/\" rel=\"noopener\">dew point<\/a>\u2014the temperature at which air becomes saturated and water vapor begins condensing into the tiny droplets that make up fog.<\/p>\n<p class=\"wp-block-paragraph\">Because cold air is denser than warm air, it flows downslope and pools in valleys, so fog tends to form there first. Notice the fog filling the branching valleys across part of the Appalachian Plateau in eastern Kentucky and southwestern West Virginia. Rivers and streams that run along many of the valley floors add to the effect by supplying extra moisture. The same pattern is visible along the Cumberland River and its reservoirs in north-central Tennessee and south-central Kentucky.<\/p>\n<p class=\"wp-block-paragraph\">According to the National Weather Service, temperatures in many places on the morning of November 8 dipped into the 30s Fahrenheit before giving way to a mild, sunny afternoon. Forecasters reported <a href=\"https:\/\/x.com\/NWSLouisville\/status\/2119384327901339926?a=gbpbfWRu8GcDkQgHjVE&amp;s=20\">locally dense valley fog<\/a> that morning. Dense fog had also blanketed a wider part of the region earlier in the week, prompting <a href=\"https:\/\/x.com\/NWSNashville\/status\/2118146909508337776?a=X9XqQCHj417SZzNizIQ&amp;s=20\">advisories<\/a> for hazardous travel conditions.<\/p>\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<p class=\"wp-block-paragraph\"><em><em>NASA Earth Observatory images by Lauren Dauphin, using MODIS data from NASA EOSDIS <a href=\"https:\/\/earthdata.nasa.gov\/lance\" rel=\"noopener\">LANCE<\/a> and <a href=\"https:\/\/worldview.earthdata.nasa.gov\/\" rel=\"noopener\">GIBS\/Worldview<\/a>, and VIIRS data from NASA EOSDIS <a href=\"https:\/\/earthdata.nasa.gov\/lance\" rel=\"noopener\">LANCE<\/a>, <a href=\"https:\/\/worldview.earthdata.nasa.gov\/\" rel=\"noopener\">GIBS\/Worldview<\/a><\/em><\/em> <em><em>and the <a href=\"https:\/\/science.nasa.gov\/mission\/jpss\/\" rel=\"noopener\">Joint Polar Satellite System<\/a> (JPSS). Story by Kathryn Hansen.<\/em><\/em><\/p>\n<div id=\"\" class=\"hds-featured-file-list bg-spacesuit-white padding-x-2 tablet:padding-x-3 desktop:padding-x-4 padding-y-5 desktop:padding-y-6 hds-module align wp-block-nasa-blocks-file-list\">\n<div class=\"grid-container grid-container-block padding-0\">\n<div class=\"grid-row width-full margin-bottom-4\">\n<div class=\"grid-col-12 desktop:grid-col-6 margin-bottom-2 desktop:margin-bottom-0\">\n<h2 class=\"heading-22\">\n\t\t\t\t\tDownloads\t\t\t\t<\/h2>\n<\/p>\n<\/div>\n<div class=\"grid-col-12 desktop:grid-col-6\">\n<div class=\"desktop:grid-col display-flex flex-align-center desktop:flex-justify-end\">\n\t\t\t\t\t\t\t\t\t<\/div>\n<\/p>\n<\/div>\n<\/div>\n<div class=\"hds-list-row hds-file-list-row\">\n<div class=\"hds-list-thumbnail hds-file-list-thumbnail\">\n<div class=\"hds-list-thumbnail-inner hds-file-list-thumbnail-inner hds-cover-wrapper\">\n<figure class=\"hds-media-background  \"><img decoding=\"async\" width=\"319\" height=\"319\" src=\"https:\/\/assets.science.nasa.gov\/content\/dam\/science\/esd\/eo\/images\/iotd\/2026\/autumn-mornings-bring-valley-fog\/usvalleyfog_tmo_20261108_lrg.jpg\/jcr:content\/renditions\/cq5dam.thumbnail.319.319.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"A natural-color satellite image from the morning shows white fog filling a branching network of river valleys, surrounded by brown and green terrain.\" style=\"transform: scale(1.2);transform-origin: 50% 50%;object-position: 50% 50%;object-fit: cover\" loading=\"lazy\" data-video-loop=\"\" \/><\/figure>\n<\/div>\n<\/div>\n<div class=\"hds-list-details\">\n<div class=\"hds-list-name hds-file-list-name\">\n<h2 class=\"heading-22\">November 8, 2026, Terra MODIS<\/h2>\n<\/p>\n<\/div>\n<div class=\"hds-list-meta\">\n<div class=\"hds-list-meta-item hds-list-date hds-file-list-date\">\n<p class=\"p-sm\">\n<\/div>\n<div class=\"hds-list-meta-item hds-file-list-filetype\">\n<p class=\"p-sm\">JPEG (3.02 MB)<\/p>\n<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"hds-list-cta hds-file-list-download\">\n\t\t\t\t\t<a aria-label=\"Download November 8, 2026, Terra MODIS\" href=\"https:\/\/assets.science.nasa.gov\/content\/dam\/science\/esd\/eo\/images\/iotd\/2026\/autumn-mornings-bring-valley-fog\/usvalleyfog_tmo_20261108_lrg.jpg\" download rel=\"noopener\"><\/p>\n<p>\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/p>\n<\/div>\n<div class=\"hds-list-row hds-file-list-row\">\n<div class=\"hds-list-thumbnail hds-file-list-thumbnail\">\n<div class=\"hds-list-thumbnail-inner hds-file-list-thumbnail-inner hds-cover-wrapper\">\n<figure class=\"hds-media-background  \"><img decoding=\"async\" width=\"319\" height=\"319\" src=\"https:\/\/assets.science.nasa.gov\/content\/dam\/science\/esd\/eo\/images\/iotd\/2026\/autumn-mornings-bring-valley-fog\/usvalleyfog_vir2_20261108_lrg.jpg\/jcr:content\/renditions\/cq5dam.thumbnail.319.319.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"A false-color satellite image from the afternoon shows the same area clear of fog, with rivers and lakes in dark blue winding through bright green vegetation.\" style=\"transform: scale(1.2);transform-origin: 50% 50%;object-position: 50% 50%;object-fit: cover\" loading=\"lazy\" data-video-loop=\"\" \/><\/figure>\n<\/div>\n<\/div>\n<div class=\"hds-list-details\">\n<div class=\"hds-list-name hds-file-list-name\">\n<h2 class=\"heading-22\">November 8, 2026, NOAA-20 VIIRS<\/h2>\n<\/p>\n<\/div>\n<div class=\"hds-list-meta\">\n<div class=\"hds-list-meta-item hds-list-date hds-file-list-date\">\n<p class=\"p-sm\">\n<\/div>\n<div class=\"hds-list-meta-item hds-file-list-filetype\">\n<p class=\"p-sm\">JPEG (3.29 MB)<\/p>\n<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"hds-list-cta hds-file-list-download\">\n\t\t\t\t\t<a aria-label=\"Download November 8, 2026, NOAA-20 VIIRS\" href=\"https:\/\/assets.science.nasa.gov\/content\/dam\/science\/esd\/eo\/images\/iotd\/2026\/autumn-mornings-bring-valley-fog\/usvalleyfog_vir2_20261108_lrg.jpg\" download rel=\"noopener\"><\/p>\n<p>\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/p>\n<\/div>\n<\/div>\n<\/div>\n<h2 class=\"wp-block-heading\">References &#038; Resources<\/h2>\n<ul class=\"wp-block-list\">\n<li>NASA Earth Observatory (2018, October 26) <a href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/its-valley-fog-season-144150\/\" rel=\"noopener\">It<\/a>\u2018<a href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/its-valley-fog-season-144150\/\" rel=\"noopener\">s Valley Fog Season<\/a>. Accessed November 9, 2026.<\/li>\n<li>National Park Service (2024, December 10) <a href=\"https:\/\/www.nps.gov\/articles\/appalachiannplateausprovince.htm\" rel=\"noopener\">Appalachian Plateaus Province<\/a>. Accessed November 9, 2026.<\/li>\n<li>National Weather Service (2023) <a href=\"https:\/\/www.weather.gov\/bgm\/WeatherInActionValleyFog\" rel=\"noopener\">Weather in Action: Valley Fog<\/a>. Accessed November 9, 2026.<\/li>\n<li>NOAA (2025, September 2) <a href=\"https:\/\/www.nesdis.noaa.gov\/about\/k-12-education\/atmosphere\/whats-the-difference-between-fog-and-clouds\" rel=\"noopener\">What<\/a>\u2018<a href=\"https:\/\/www.nesdis.noaa.gov\/about\/k-12-education\/atmosphere\/whats-the-difference-between-fog-and-clouds\" rel=\"noopener\">s the Difference Between Fog and Clouds?<\/a> Accessed November 9, 2026.<\/li>\n<\/ul>\n<div id=\"\" class=\"hds-content-lists-inner hds-module hds-module-full alignfull wp-block-nasa-blocks-content-lists\">\n<div id=\"content-list-b56ef35e-0452-4326-bef0-9d3575d8d317\" class=\"hds-content-lists margin-y-3 padding-x-0 bg-spacesuit-white width-full maxw-full\" data-starting-query=\"{\" data-current-query=\"{\">\n<div class=\"grid-container grid-container-widescreen padding-x-3\">\n<div class=\"grid-row flex-align-start margin-bottom-3\">\n<div class=\"desktop:grid-col-8 margin-bottom-2 desktop:margin-bottom-0\">\n<h2 class=\"section-heading-sm line-height-sm\">You may also be interested in:<\/h2>\n<p class=\"margin-top-0 margin-bottom-2 maxh-tablet\">Stay up-to-date with the latest content from NASA as we explore the universe and discover more about our home planet.<\/p>\n<\/p>\n<\/div>\n<\/div>\n<div class=\"grid-row grid-container grid-container-block padding-0 margin-0 flex-justify-center\">\n<div class=\" grid-col-12\">\n<div class=\"grid-row grid-container grid-container-block padding-0\" style=\"display: block\">\n<div id=\"filter-tags\" class=\"grid-col-12 filter-tags-container\"><\/div>\n<\/p>\n<\/div>\n<div class=\"smd-orbit-loader\" role=\"status\" aria-hidden=\"true\">\n<div class=\"orbit-plane\"><span class=\"orbit-dot\"><\/span><\/div>\n<\/div>\n<div id=\"post-list-container\" class=\"hds-content-items hds-content-items-grid margin-top-2\" aria-live=\"polite\" data-rest-url=\"https:\/\/science.nasa.gov\/wp-json\/smd\/v1\/content-list\">\n<div class=\"hds-content-item content-list-item-post\">\n                    <a href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/cloudy-cloak-over-the-northwest\/\" class=\"hds-content-item-thumbnail\" rel=\"noopener\"><\/p>\n<figure class=\"hds-media-background  content-list-thumbnail\"><img decoding=\"async\" loading=\"lazy\" width=\"300\" height=\"200\" data-no-id=\"true\" alt=\"\" style=\"transform: scale(1);transform-origin: 50% 50%;object-position: 50% 50%;object-fit: cover\" src=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/esd\/eo\/images\/iotd\/2026\/cloudy-cloak-over-the-northwest\/westcoastfog_tmo_20260919_th.jpg?fit=clip&amp;crop=faces%2Cfocalpoint&amp;%23038;w=300&amp;%23038;h=200\"><\/figure>\n<p>            <\/a><\/p>\n<div class=\"hds-content-item-inner\">\n            <a href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/cloudy-cloak-over-the-northwest\/\" class=\"hds-content-item-heading\" rel=\"noopener\"><\/p>\n<div class=\"hds-a11y-heading-22\">Cloudy Cloak Over the Northwest<\/div>\n<p>            <\/a><\/p>\n<div class=\"hds-content-item-readtime label margin-bottom-1\">\n                    2 min read                <\/div>\n<p class=\"margin-top-0 margin-bottom-1\">A low-lying cloud layer brought autumn ambience to western Washington and Oregon, while mountainous areas near the coast remained above\u2026<\/p>\n<div class=\"display-flex flex-align-center label color-carbon-60 margin-bottom-auto\"><span>Article<\/span><\/div>\n<\/p>\n<\/div>\n<\/div>\n<div class=\"hds-content-item content-list-item-post\">\n                    <a href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/fire-cloud-with-a-pileus-on-top\/\" class=\"hds-content-item-thumbnail\" rel=\"noopener\"><\/p>\n<figure class=\"hds-media-background  content-list-thumbnail\"><img decoding=\"async\" loading=\"lazy\" width=\"300\" height=\"200\" data-no-id=\"true\" alt=\"\" style=\"transform: scale(1);transform-origin: 50% 50%;object-position: 50% 50%;object-fit: cover\" src=\"https:\/\/assets.science.nasa.gov\/dynamicimage\/assets\/science\/esd\/eo\/images\/iotd\/2026\/fire-cloud-with-a-pileus-on-top\/montanafirebands_master_20260811_th.jpg?fit=clip&amp;crop=faces%2Cfocalpoint&amp;%23038;w=300&amp;%23038;h=200\"><\/figure>\n<p>            <\/a><\/p>\n<div class=\"hds-content-item-inner\">\n            <a href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/fire-cloud-with-a-pileus-on-top\/\" class=\"hds-content-item-heading\" rel=\"noopener\"><\/p>\n<div class=\"hds-a11y-heading-22\">Fire Cloud With a Pileus on Top<\/div>\n<p>            <\/a><\/p>\n<div class=\"hds-content-item-readtime label margin-bottom-1\">\n                    4 min read                <\/div>\n<p class=\"margin-top-0 margin-bottom-1\">Scientists captured rare observations of an ephemeral pileus cloud hovering over a smoke-infused cloud that rose above a wildfire in\u2026<\/p>\n<div class=\"display-flex flex-align-center label color-carbon-60 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href=\"https:\/\/science.nasa.gov\/earth\/earth-observatory\/wild-scenic-and-increasingly-rusty\/\" class=\"hds-content-item-heading\" rel=\"noopener\"><\/p>\n<div class=\"hds-a11y-heading-22\">Wild, Scenic, and Increasingly Rusty<\/div>\n<p>            <\/a><\/p>\n<div class=\"hds-content-item-readtime label margin-bottom-1\">\n                    5 min read                <\/div>\n<p class=\"margin-top-0 margin-bottom-1\">Orange streams are now being spotted in hundreds of watersheds in permafrost areas throughout Alaska\u2019s Brooks Range.<\/p>\n<div class=\"display-flex flex-align-center label color-carbon-60 margin-bottom-auto\"><span>Article<\/span><\/div>\n<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div id=\"pagination-container\" class=\"pagination\">\n<nav class=\"hds-pagination hds-pagination--content-lists\" role=\"navigation\" aria-label=\"Pagination Navigation\" data-mid-size=\"2\" data-end-size=\"1\" data-max-pages=\"4\">\n<span aria-current=\"page\" class=\"page-numbers 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flex-justify-start z-200\">\n<div>\n<h3 class=\"hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1\">\n\t\t\t\t\t\t\t\t<span>Earth Science Data<\/span><\/p>\n<\/h3>\n<p class=\"margin-bottom-0 margin-top-2 color-carbon-20-important\">Open access to NASA\u2019s archive of Earth science data<\/p>\n<\/p>\n<\/div>\n<\/div>\n<figure class=\"hds-media-background  \"><img decoding=\"async\" width=\"1536\" height=\"768\" src=\"https:\/\/science.nasa.gov\/wp-content\/uploads\/2023\/10\/biosphere-sea-2008-lrg.png?w=1536\" class=\"attachment-1536x768 size-1536x768\" alt=\"\" style=\"transform: scale(1);transform-origin: 50% 50%;object-position: 50% 50%;object-fit: cover\" loading=\"lazy\" \/><\/figure>\n<\/p>\n<\/div>\n<p>\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Low clouds trace the branching valleys of the Appalachian Plateau and the Cumberland River, then burn off by 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