{"id":19990,"date":"2022-09-29T09:43:47","date_gmt":"2022-09-29T15:43:47","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=19990"},"modified":"2022-09-29T09:44:12","modified_gmt":"2022-09-29T15:44:12","slug":"ftb-09-29-2022-showers-and-storms-on-the-increase-for-western-colorado","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=19990","title":{"rendered":"FTB 09-29-2022: Showers And Storms On The Increase For Western Colorado"},"content":{"rendered":"<p>Issue Date: Thursday, September 29th, 2022<br>\nIssue Time: 9:30AM MDT<\/p>\n<p><em>&mdash; Flooding is <strong>NOT<\/strong> expected today<\/em><br><em>&mdash;&nbsp;<\/em><em><strong>Fire-Burn Forecast Summary:<\/strong> 1<\/em><em> burn area under LOW threat; click&nbsp;<\/em><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/?cat=7\">HERE<\/a><em>&nbsp;for more info<\/em><\/p>\n<p>Today will be a transition day between the warm, relatively dry weather that Colorado has seen over the past few days, to a cooler, rainier weather pattern setting up beginning tomorrow. As shown in the visible satellite image, below, the upper-level ridge continues to weaken to our southeast. This has allowed for the import of moister air of monsoonal\/Pacific origin into our state this morning. Grand Junction&rsquo;s <span class=\"glossaryLink\"  aria-describedby=\"tt\"  data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;PW&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;(Stands for: Precipitable Water) The total atmospheric water vapor contained in a vertical column of the atmosphere. It is typically measured in inches, and anomalously (deviation from normal) high values of precipitable water generally correlate to heavy rainfall potential.&lt;\/div&gt;\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>PW<\/span> has risen notably from 0.63 to 0.76 inches. Further east, Platteville has also seen some modest moistening with a <span class=\"glossaryLink\"  aria-describedby=\"tt\"  data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;PW&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;(Stands for: Precipitable Water) The total atmospheric water vapor contained in a vertical column of the atmosphere. It is typically measured in inches, and anomalously (deviation from normal) high values of precipitable water generally correlate to heavy rainfall potential.&lt;\/div&gt;\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>PW<\/span> rising from 0.48 to 0.63 inches over the past 24 hours. <span class=\"glossaryLink\"  aria-describedby=\"tt\"  data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;PW&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;(Stands for: Precipitable Water) The total atmospheric water vapor contained in a vertical column of the atmosphere. It is typically measured in inches, and anomalously (deviation from normal) high values of precipitable water generally correlate to heavy rainfall potential.&lt;\/div&gt;\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>PW<\/span> will continue to very gradually rise through the day, and over the next 24-48 hours. However, the majority of this will be above the <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;boundary layer&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;&amp;lt;\/p&amp;gt;\n&amp;lt;!-- \/wp:paragraph --&amp;gt;&amp;lt;br \/&amp;gt;&amp;lt;p&amp;gt;&amp;lt;span style=&amp;quot;color: #ffffff;&amp;quot;&amp;gt;The lower portion of the atmosphere that is directly influenced by the earth&amp;#039;s surface. Primarily, the boundary layer is driven by solar heating during the day and radiational cooling at night.&amp;lt;\/span&amp;gt;&amp;lt;\/p&amp;gt;&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>boundary layer<\/span>, and thus not very impactful for thunderstorm potential. As also seen in the visible satellite image, a strong <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> has entered the Pacific Northwest as of this morning. It will move ESE into the Northern Rockies over the next few days, but help push a couple of weak disturbances (&ldquo;X&rdquo; in image below) across mainly northern Colorado today. With the enhanced dynamics, we expect an increase in shower and storm activity for mainly western Colorado. <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;scattered&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;25-40% areal coverage&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>Scattered<\/span> showers and storms are expected by early afternoon, and persisting into the evening hours. Although brief moderate rainfall intensity is possible, flooding is NOT expected today. A couple of showers and weaker storms could also persist into the early overnight hours over the Northern Mountains.<\/p>\n<p><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/09\/vis_markup-5.png\"><img loading=\"lazy\" class=\" wp-image-19991 aligncenter\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/09\/vis_markup-5.png\" alt=\"\" width=\"672\" height=\"508\" srcset=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/09\/vis_markup-5.png 769w, https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/09\/vis_markup-5-300x227.png 300w\" sizes=\"(max-width: 672px) 100vw, 672px\"\/><\/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. If there is a threat, hover over the threat areas for more details, and click on burn areas to learn more about them. For Zone-Specific forecasts, scroll below the threat map.<\/p>\n<p><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/09\/FTB_NoThreat_2022_light.png\"><img loading=\"lazy\" class=\"size-full wp-image-19992 aligncenter\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/09\/FTB_NoThreat_2022_light.png\" alt=\"\" width=\"768\" height=\"573\" srcset=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/09\/FTB_NoThreat_2022_light.png 768w, https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/09\/FTB_NoThreat_2022_light-300x224.png 300w\" sizes=\"(max-width: 768px) 100vw, 768px\"\/><\/a><\/p>\n<h3><strong>Zone-Specific Forecasts:<\/strong><\/h3>\n<h4><strong>Northern Mountains, Central Mountains, Grand Valley, San Juan Mountains, Southwest Slope, San Luis Valley, Northwest Slope, Front Range &amp; Southeast Mountains:<\/strong><\/h4>\n<p>Becoming mostly cloudy with <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;scattered&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;25-40% areal coverage&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>scattered<\/span> showers and storms developing by early afternoon. Max 30-min rain rates up to 0.5 inches are possible over far northern Colorado, and up to 0.4 inches elsewhere. Flooding is NOT expected today.<\/p>\n<p>Primetime: Noon through 9PM, with <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;isolated&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;less than 10% areal coverage&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>isolated<\/span> showers persisting into the early overnight hours<\/p>\n<h4><strong>Northeast Plains, Southeast Plains, Urban Corridor, Palmer Ridge &amp; Raton Ridge:<\/strong><\/h4>\n<p>Mostly sunny and warm with high temperatures a few degrees above normal. <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;isolated&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;less than 10% areal coverage&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>Isolated<\/span> showers and perhaps a weaker storm cannot be ruled out this afternoon and evening, especially closer to the foothills. Max 30-min rain rates up to 0.2 inches.<\/p>\n<p>Primetime: 2PM through 7PM<\/p>","protected":false},"excerpt":{"rendered":"<p>Issue Date: Thursday, September 29th, 2022 Issue Time: 9:30AM MDT &mdash; Flooding is NOT expected today &mdash;&nbsp;Fire-Burn Forecast Summary: 1 burn area under LOW threat; click&nbsp;HERE&nbsp;for more info Today will be a transition day between the warm, relatively dry weather that Colorado has seen over the past few days, to a cooler, rainier weather pattern [&hellip;]<\/p>","protected":false},"author":4,"featured_media":0,"comment_status":"closed","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\/19990"}],"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\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=19990"}],"version-history":[{"count":2,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/19990\/revisions"}],"predecessor-version":[{"id":19994,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/19990\/revisions\/19994"}],"wp:attachment":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=19990"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=19990"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=19990"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}