{"id":5851,"date":"2017-08-08T10:50:14","date_gmt":"2017-08-08T16:50:14","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=5851"},"modified":"2017-08-09T07:55:24","modified_gmt":"2017-08-09T13:55:24","slug":"ftb-08-08-2017-continued-moisture-fuels-another-round-of-afternoon-and-evening-storms","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=5851","title":{"rendered":"FTB 08-08-2017: Continued Moisture Fuels Another Round of Afternoon and Evening Storms"},"content":{"rendered":"<p>Issue Date: Tuesday, August 8, 2017<br>\nIssue Time: 10:50AM MDT<\/p>\n<p>&mdash; <em><strong>LOW<\/strong><\/em> <em>flood threat Northwest Slope, Northern Mountains, Front Range, Urban Corridor, Northeast Plains, Palmer Ridge, Southeast Mountains, Central Mountains, Southeast Plains, Raton Ridge, Grand Valley<\/em><\/p>\n<p>With the broad ridge over the western US, Colorado will continue to be under westerly flow once again. Cloud cover this morning is heaviest in the eastern plains where some showers are still lingering from last night. This disturbance should exit over the Kansas border later this morning. Fog and low-level clouds are present once again with the moist atmosphere. <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;precipitable water&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;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\"}]'>Precipitable Water<\/span> (<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 Denver was measured at 1 inch and 1.03 inches over Grand Junction. Temperatures will be up to 10F warmer than yesterday, which should help burn off some of the cloud cover and help create more instability than yesterday. Similar to yesterday, mid-level disturbances will move through the state, which depending on timing, could help enhance the diurnal upslope pattern.<br><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2017\/08\/vis-8-8-2017.png\"><img loading=\"lazy\" class=\"aligncenter wp-image-5852\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2017\/08\/vis-8-8-2017.png\" alt=\"\" width=\"400\" height=\"259\"\/><\/a><\/p>\n<p>Westerly flow over western Colorado will dry out the mid-levels a bit, but <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> values will be high enough for storms to form over the higher terrain favoring the north. The precipitation seems to come in a couple of waves, with the strongest precipitation over the Roan Plateau\/Flat Tops and portions of the Central Mountains. A Low flood threat has been issued with storm totals as high as 1.5 inches over this region. Threats include mud flows, debris slides and <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;flash flooding&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;flash flooding can refer to usually dry areas becoming rapidly inundated with water, or rapid water level rises on streams, creeks, or rivers beyond flood stage; typically caused by heavy rainfall, but can also be caused by meltwater&amp;lt;\/p&amp;gt;\n&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>flash flooding<\/span> of roads and small streams over saturated soils.<\/p>\n<p>Southeasterly flow over the eastern plains should help keep low-level moisture intact for storms later this afternoon with <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;dew points&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;The temperature to which a given air parcel must be cooled (at constant pressure and water vapor content) in order for saturation to occur.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>dew points<\/span> over Kansas and Oklahoma in the low 60s. Storms will begin to fire over the higher terrain around 1PM and will be more <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> in nature than yesterday. While 1-hour storm totals are below flood thresholds, storm totals of 1.2 inches over saturated soils will increase the chance of mud flows and debris slides. As storms move off the mountains in to the adjacent plains, they will favor the higher terrains of the Palmer <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;Divide&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;the dividing line that separates the watersheds of the western and eastern United States; rivers west of the divide empty into the Pacific Ocean, while rivers east of the divide empty into the Atlantic Ocean or Gulf of Mexico&amp;lt;\/p&amp;gt;\n&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>Divide<\/span> and Raton Ridge. Models also have the better instability and a bit of <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;shear&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;Local variation of the wind, either in the horizontal or vertical direction.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>shear<\/span> over the Southeast Plains, so small hail is possible. It is also possible this afternoon that storms that form over the Cheyenne Ridge will move into the Northeast Plains later this evening. The threat over the mountains and western slope should end this evening, but a few showers may linger overnight with the support of a <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;shortwave&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;A disturbance in the mid or upper part of the atmosphere which induces upward motion ahead of it.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>shortwave<\/span> and low-level moisture. Over the plains, there is a threat should cease around midnight.<\/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 (hover over threat areas for more details). For Zone-Specific forecasts, scroll below the map.<\/p>\n<div style=\"position: relative;\"><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2017\/08\/FTB-8-8-2017-old.png\"><img loading=\"lazy\" class=\"alignnone wp-image-5858\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2017\/08\/FTB-8-8-2017-old.png\" alt=\"\" width=\"880\" height=\"497\"\/><\/a><\/div>\n<div><img loading=\"lazy\" class=\"alignright wp-image-135\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2015\/04\/floodthreat_legend2.png\" alt=\"Flood Threat Legend\" width=\"275\" height=\"71\"\/><\/div>\n<p>&nbsp;<\/p>\n<h3><strong>Zone-Specific Forecasts:<\/strong><\/h3>\n<h4><strong>Front Range, Urban Corridor, Palmer Ridge, Northeast Plains, Southeast Mountains, Raton Ridge, Southeast Plains:<\/strong><\/h4>\n<p>Low-level clouds and rain this morning with a couple rounds of precipitation again. Storms will become more severe where sun is able to break through and create instability and with better <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;shear&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;Local variation of the wind, either in the horizontal or vertical direction.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>shear<\/span>, which is most likely over the Southeast Plains. Max 3-6 hour rainfall up to 2.8 inches (east), 1.2 inches (west). Riverine flooding along Fountain Creek and the Arkansas River will be monitored closely with saturated soils and <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> rainfall again, though no threat is warranted at this time. A Low flood threat has been issued today.<\/p>\n<p>Primetime: 1PM to 12AM<\/p>\n<h4><strong>Northwest Slope, Grand Valley, Southwest Slope, Northern Mountains, Central Mountains, San Juan Mountains, San Luis Valley:<\/strong><\/h4>\n<p>A couple embedded shortwaves will create two rounds of rainfall today. 3-6 hour totals up to 1.5 inches over the Flat Tops\/Roan Plateau and portions of the central mountains put it at risk for mud flows, debris slides and road flooding. 3-6 hr rain totals up to 1.2 inches possible (north) and 1 inch (south). There is a Low flood threat for today.<\/p>\n<p>Primetime: 12PM to 10PM<\/p>","protected":false},"excerpt":{"rendered":"<p>Issue Date: Tuesday, August 8, 2017 Issue Time: 10:50AM MDT &mdash; LOW flood threat Northwest Slope, Northern Mountains, Front Range, Urban Corridor, Northeast Plains, Palmer Ridge, Southeast Mountains, Central Mountains, Southeast Plains, Raton Ridge, Grand Valley With the broad ridge over the western US, Colorado will continue to be under westerly flow once again. Cloud [&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\/5851"}],"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=5851"}],"version-history":[{"count":4,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/5851\/revisions"}],"predecessor-version":[{"id":5859,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/5851\/revisions\/5859"}],"wp:attachment":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5851"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5851"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5851"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}