{"id":19302,"date":"2022-08-22T09:31:35","date_gmt":"2022-08-22T15:31:35","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=19302"},"modified":"2022-08-23T07:29:44","modified_gmt":"2022-08-23T13:29:44","slug":"%ef%bf%bcftb-08-22-2022-isolated-heavy-rainfall-possible-over-southern-high-terrain","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=19302","title":{"rendered":"FTB 08-22-2022: Isolated Heavy Rainfall Possible Over Southern High Terrain"},"content":{"rendered":"<p>Issue Date: Monday, August 22nd, 2022<br>Issue Time: 9:30AM MDT<\/p>\n<p><em>&mdash; <\/em><em>A&nbsp;<\/em><strong><em>LOW<\/em><\/strong><em>&nbsp;flood threat has been issued for the Central Mountains, San Juan Mountains, Southeast Mountains and portions of the Front Range and Raton Ridge<\/em><br><em>&mdash;<\/em><em>&nbsp;<\/em><strong><em>Fire-Burn Forecast Summary:<\/em><\/strong> <em>2 burn areas under MODERATE threat;<\/em><em> click <a class=\"keychainify-checked\" href=\"https:\/\/archive-coftb.dewberryanalytics.com\/?cat=7\">HERE<\/a> for more info<\/em><\/p>\n<p>There is some fog, cloud cover and morning showers over the state this morning associated with the upper-level Low that is helping to generate lift in a moisture rich environment. The Low will continue to slowly track southward throughout the day with building High pressure filling in behind it. As it does so, it should promote enhanced lift out in front of it over the high terrain. <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> moisture is still in place over the state with <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> at Grand Junction measured at 0.98 inches. There is some drier air has begun to work its way in from the north, and <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> at Platteville has dropped to 0.83 inches. This drier air in tandem with building high pressure, should help to keep that area mostly dry today with only <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> mountain storms expected. Better moisture and lift are forecast south of I-70, which will be the focal point for another round of <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> to <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;numerous&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;40-60% areal coverage&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>numerous<\/span> mountain storms this afternoon and evening.<\/p>\n<p>Similar to the last couple of days, where there are breaks in cloud cover behind this first round of showers and associated cloud cover, <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>, stronger storms are likely to develop. With cooler temperatures forecast (limited instability), the more intense rainfall from these thunderstorms should occur in the first 30 minutes to hour. Slow steering flows to the southeast will also promote higher accumulations under the small storm cores, so a LOW flood threat has been issued.<\/p>\n<p><a class=\"keychainify-checked\" href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/08\/vis_20220822.png\"><img loading=\"lazy\" class=\"aligncenter wp-image-19303\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/08\/vis_20220822-300x211.png\" alt=\"\" width=\"700\" height=\"492\" srcset=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/08\/vis_20220822-300x211.png 300w, https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/08\/vis_20220822-1024x719.png 1024w, https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/08\/vis_20220822-768x539.png 768w, https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/08\/vis_20220822.png 1290w\" sizes=\"(max-width: 700px) 100vw, 700px\"\/><\/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 class=\"keychainify-checked\" href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/08\/Replace-yesterday-1.png\"><img loading=\"lazy\" class=\"aligncenter  wp-image-19320\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/08\/Replace-yesterday-1.png\" alt=\"\" width=\"880\" height=\"592\" srcset=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/08\/Replace-yesterday-1.png 1030w, https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/08\/Replace-yesterday-1-300x202.png 300w, https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/08\/Replace-yesterday-1-1024x689.png 1024w, https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/08\/Replace-yesterday-1-768x517.png 768w\" sizes=\"(max-width: 880px) 100vw, 880px\"\/><\/a><\/p>\n<h3><strong>Zone-Specific Forecasts:<\/strong><\/h3>\n<h4><strong>Front Range, Central Mountains, Southeast Mountains, Raton Ridge, San Juan Mountains &amp; San Luis Valley:<\/strong><\/h4>\n<p><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> to <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;numerous&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;40-60% areal coverage&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>numerous<\/span> afternoon and evening storms are forecast today with more intense thunderstorms likely to develop in areas with breaks in cloud cover. Max 30-minute\/1-hour rain rates up to 1.1\/1.75 inches will be possible, but since stronger storm cores should be relatively small and <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>, only a LOW flood threat has been issued. Storms should mostly stick to the high terrain with some spillover possible into the western Raton Ridge and San Luis Valley. In addition to local, heavy rainfall, thunderstorms may produce small hail and strong <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. Flood threats include mud flows, debris slides, road flooding and ponding in low-lying areas. The flood threat should end early this evening with some light rainfall likely lingering through midnight over the southern mountains.<\/p>\n<p>Primetime: 1:30PM to Midnight<\/p>\n<h4><strong>Urban Corridor, Palmer Ridge, Southwest Slope, Southeast Plains, Northwest Slope, Northern Mountains, Grand Valley &amp; Northeast Plains:<\/strong><\/h4>\n<p>Afternoon high temperatures should still be below a couple of degrees below average today, although it will be warmer when compared to yesterday. <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> storms may develop over high terrain with residual moisture, but totals should remain under 0.2 inches. Other areas should see plenty of sunshine and dry conditions. Flooding is NOT expected.<\/p>\n<p>Primetime: 1:30PM to 9PM<\/p>\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Issue Date: Monday, August 22nd, 2022Issue Time: 9:30AM MDT &mdash; A&nbsp;LOW&nbsp;flood threat has been issued for the Central Mountains, San Juan Mountains, Southeast Mountains and portions of the Front Range and Raton Ridge&mdash;&nbsp;Fire-Burn Forecast Summary: 2 burn areas under MODERATE threat; click HERE for more info There is some fog, cloud cover and morning showers [&hellip;]<\/p>","protected":false},"author":8,"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\/19302"}],"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=19302"}],"version-history":[{"count":6,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/19302\/revisions"}],"predecessor-version":[{"id":19322,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/19302\/revisions\/19322"}],"wp:attachment":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=19302"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=19302"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=19302"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}