{"id":8188,"date":"2018-08-24T08:35:18","date_gmt":"2018-08-24T14:35:18","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=8188"},"modified":"2018-08-24T08:36:42","modified_gmt":"2018-08-24T14:36:42","slug":"ftb-08-24-2018-isolated-storms-for-western-colorado-as-next-trough-digs-in-over-the-west-coast","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=8188","title":{"rendered":"FTB 08-24-2018: Isolated Storms for Western Colorado as Next Trough Digs in Over the West Coast"},"content":{"rendered":"<p>Issue Date: Friday, August 24th, 2018<br>\nIssue Time: 08:40AM MDT<\/p>\n<p><em>&mdash; Flooding is <strong>NOT<\/strong> expected today<\/em><\/p>\n<p>Visible satellite shows mostly clear skies with a little fog over southern Colorado to start the day. The smoke is also still here, which is heaviest over eastern Colorado along the Urban Corridor. Guidance shows the near-surface smoke increasing over this area quite a bit throughout the day. There is also an Air Quality Health Advisory this morning for northwestern Colorado.<\/p>\n<p>Today the weak ridge over Utah will slide eastward as the next <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;trough&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;An elongated area of relatively low atmospheric pressure; the opposite of a ridge.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>trough<\/span> begins to dig south over the west coast. After the ridge passes, some upper-level energy on its back side will help promote some light showers and thunderstorms over western Colorado later this afternoon. Flow aloft will also become more southwesterly this afternoon after the ridge passes to the east. While the southwest flow will begin to increase the subtropical moisture overnight, low-level moisture for the storms this afternoon will be lacking. This translates to storms today likely producing gusty winds with limited rainfall totals. To the east, <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;downsloping&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;Refers to the winds that blow from higher elevations down towards lower elevations. As air parcels descend, they warm, which often results in rapid warming of areas near the higher terrains. It also promotes lower relative humidity values and stability, which prevents thunderstorm development.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>downsloping<\/span> winds will continue to scour out any residual moisture under the ridge. This will make it quite difficult for any storms to fire over the higher terrains today.<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2018\/08\/vis_20180824.png\"><img loading=\"lazy\" class=\"alignnone wp-image-8189\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2018\/08\/vis_20180824.png\" alt=\"\" width=\"550\" height=\"410\"\/><\/a><\/p>\n<h3><strong>Today&rsquo;s Flood Threat Map<\/strong><\/h3>\n<p>For more information on today&rsquo;s flood threat, see the map below. For Zone-Specific forecasts, scroll below the map.<br><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2017\/08\/no_threat.png\"><img loading=\"lazy\" class=\"aligncenter wp-image-6157\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2017\/08\/no_threat.png\" alt=\"\" width=\"880\" height=\"580\"\/><\/a><\/p>\n<h3><\/h3>\n<h3><strong>Zone-Specific Forecasts:<\/strong><\/h3>\n<h4><strong>Grand Valley, Central Mountains, San Juan Mountains, San Luis Valley, Southwest Slope, Northern Mountains, Northwest Slope, Northeast Plains:<\/strong><\/h4>\n<p>Weak showers and a possible thunderstorm or two this afternoon are possible over western CO as the <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;trough&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;An elongated area of relatively low atmospheric pressure; the opposite of a ridge.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>trough<\/span> digs in over the west coast. Flow will turn more southwesterly aloft this afternoon as well. This may help bring a little low-level moisture back, but the moderate <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;monsoon&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;&amp;lt;!-- wp:paragraph {&amp;quot;textColor&amp;quot;:&amp;quot;white&amp;quot;} --&amp;gt;\n&amp;lt;p class=&amp;quot;has-white-color has-text-color&amp;quot;&amp;gt;a seasonal wind that brings moisture and rain to the region into which it blows; there is also a dry phase to monsoons, but popular usage refers only to the wet phase; these winds occur in many places around the world, and where they occur they are responsible for a majority of that location&rsquo;s annual precipitation&amp;lt;\/p&amp;gt;\n&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>monsoon<\/span> surge won&rsquo;t occur until tomorrow. Thus, storms today are not expected to be <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;widespread&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;greater than 60% areal coverage&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>widespread<\/span> in coverage. Max 1-hr rain rates up to 0.2 inches are possible with gusty <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;outflow&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;A cool pool of air that results when a thunderstorm downdraft reaches the surface and spreads horizontally.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>outflow<\/span> winds likely under the stronger cores. Flooding is not expected today.<\/p>\n<p>Primetime: 2PM &ndash; 9PM<\/p>\n<h4><strong>Southeast Plains, Raton Ridge, Southeast Mountains, Front Range, Palmer Ridge, Urban Corridor:<\/strong><\/h4>\n<p><span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;downsloping&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;Refers to the winds that blow from higher elevations down towards lower elevations. As air parcels descend, they warm, which often results in rapid warming of areas near the higher terrains. It also promotes lower relative humidity values and stability, which prevents thunderstorm development.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>Downsloping<\/span> winds and resulting subsidence will continue today, which will scour out most of the residual moisture under the ridge. Weak upslope flow may set up this afternoon, but this&nbsp;would only increase cloud cover over the higher terrains. High temperatures should bump up a couple degrees from yesterday. Visibility is expected to deteriorate throughout the day along the I-25 Corridor. The Front Range Air Quality forecast has an Action Day, which means air quality will once again be unhealthy for sensitive groups.<\/p>","protected":false},"excerpt":{"rendered":"<p>Issue Date: Friday, August 24th, 2018 Issue Time: 08:40AM MDT &mdash; Flooding is NOT expected today Visible satellite shows mostly clear skies with a little fog over southern Colorado to start the day. The smoke is also still here, which is heaviest over eastern Colorado along the Urban Corridor. Guidance shows the near-surface smoke increasing [&hellip;]<\/p>","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[6],"tags":[],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/8188"}],"collection":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8188"}],"version-history":[{"count":2,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/8188\/revisions"}],"predecessor-version":[{"id":8191,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/8188\/revisions\/8191"}],"wp:attachment":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8188"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8188"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8188"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}