{"id":700,"date":"2015-06-04T10:35:25","date_gmt":"2015-06-04T16:35:25","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=700"},"modified":"2015-06-04T10:35:25","modified_gmt":"2015-06-04T16:35:25","slug":"ftb-06-04-2015-fewer-showers-and-thunderstorms-as-compared-to-yesterday","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=700","title":{"rendered":"FTB 06-04-2015: Fewer Showers and Thunderstorms as Compared to Yesterday"},"content":{"rendered":"<p>Issue Date: 6\/4\/2015<br>\nIssue Time: 10:26 AM<\/p>\n<p><em>A LOW FLOOD THREAT IS FORECAST FOR THE WEST SALT CREEK LANDSLIDE AND SURROUNDING LOW LYING AREAS IN THE GRAND VALLEY, CENTRAL MOUNTAINS, AND NORTHERN MOUNTAINS REGIONS. A LOW FLOOD THREAT CONTINUES FOR PORTIONS OF THE CACHE LA POUDRE AND SOUTH PLATTE RIVERS.<\/em><\/p>\n<p>As is the case on most days, today&rsquo;s water vapor image tells the forecast story fairly well. First things first, the black line in the image denotes yesterday&rsquo;s disturbance that aided in the development of storms across NE Colorado. It continues to track eastward, producing showers and thunderstorms along the way. Behind this disturbance is the maroon line, depicting the location of the high pressure ridge in its wake. As the low pressure <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> deepens over the CA coast, the high pressure ridge will build across Colorado, helping to suppress the number of thunderstorms that Colorado will see today. Also noted on the water vapor image is the presence of the mid-level dry air being pulled across Colorado from the southwest; this will help to keep areas west of the <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;Continental 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\"}]'>Continental Divide<\/span> dry today.<\/p>\n<p><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2015\/06\/WV_06042015.png\"><img loading=\"lazy\" class=\"  wp-image-702 aligncenter\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2015\/06\/WV_06042015.png\" alt=\"WV_06042015\" width=\"640\" height=\"414\"\/><\/a><\/p>\n<p>East of the <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;Continental 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\"}]'>Continental Divide<\/span>, low-level moisture remains in place as easterly flow continues to stream moisture into eastern Colorado. The culprit behind this moist flow is a slow-moving surface Low, currently positioned over far SW KS. This moisture, combined with daytime heating, will lead to sufficient instability this afternoon and evening. This instability will fight the high pressure ridging above and produce a few <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 thunderstorms this afternoon and evening over the Front Range, Urban Corridor, Palmer Ridge, Northeast Plains, Southeast Plains, and Raton Ridge. The number of thunderstorms will be less than yesterday as only a few storms will be able to break through.<\/p>\n<p>As the day progresses, the easterly flow will become more southerly, which means that the most likely locations for storms will be across the Front Range, Urban Corridor, Palmer Ridge, and Northeast Plains. This southerly flow will also allow for the Denver Convergence Zone to develop across Douglas and Arapahoe counties. IF a storm can develop in this region, this will support an <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> strong storm capable of producing small hail, brief moderate-to-heavy rain, and an <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> landspout tornado.<\/p>\n<p>By early tomorrow morning, expect a few showers and perhaps a thunderstorm or two to push in across the SW corner of the state. Tropical moisture from Hurricane Andres is being pulled northeastward from the deepening low pressure <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>, and will set the stage for tomorrow&rsquo;s FTB.<\/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, jump below the map.<\/p>\n<div style=\"position: relative;\"><iframe loading=\"lazy\" src=\"https:\/\/a.tiles.mapbox.com\/v4\/sgeiger.mc5diebh\/attribution,zoompan,zoomwheel,geocoder,share.html?access_token=pk.eyJ1Ijoic2dlaWdlciIsImEiOiJmNjc5a3RBIn0.LbLupVkJsS5dbo9fsgrTDg\" width=\"100%\" height=\"500px\" frameborder=\"0\"><\/iframe><\/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<h3><\/h3>\n<h3><strong>Zone-Specific Forecasts<\/strong><\/h3>\n<h4><strong>Front Range, Urban Corridor, Palmer Ridge, Southeast Plains, Raton Ridge and Northeast Plains:<\/strong><\/h4>\n<p>A few <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 thunderstorms are expected to develop this afternoon and evening, capable of producing brief moderate-to-heavy rain, small hail, and strong, gusty winds. Relatively quick storm motions and lack of upper-level support do not warrant a flood threat to be issued.<\/p>\n<p>Maximum rain rates will be in the 1.2-1.8 inches\/hour range, but storm motions will limit the amount any one location will receive. Additionally, storms will have a hard time sustaining themselves with the presence of upper-level subsidence.<\/p>\n<p>Timing: 2 PM &ndash; Midnight, with one or two showers\/weak thunderstorms continuing into the early morning hours.<\/p>\n<h4><strong>Northern Mountains, Northwest Slope, Central Mountains, San Juan Mountains, Grand Valley, San Luis Valley, Southwest Slope, and Southeast Mountains:<\/strong><\/h4>\n<p>One more day of dry southwesterly flow will lead to sunny skies and warm temperatures. Changes will come late Tuesday night as tropical moisture begins to encroach on the SW corner of the state, producing showers and a few weak thunderstorms. This moisture push will set the stage for tomorrow, but will not warrant any <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;flash flood&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 flood<\/span> threat through the end of this forecast period at 11 AM tomorrow.<\/p>\n<p>Timing: 1 AM &ndash; 11 AM<\/p>","protected":false},"excerpt":{"rendered":"<p>Issue Date: 6\/4\/2015 Issue Time: 10:26 AM A LOW FLOOD THREAT IS FORECAST FOR THE WEST SALT CREEK LANDSLIDE AND SURROUNDING LOW LYING AREAS IN THE GRAND VALLEY, CENTRAL MOUNTAINS, AND NORTHERN MOUNTAINS REGIONS. A LOW FLOOD THREAT CONTINUES FOR PORTIONS OF THE CACHE LA POUDRE AND SOUTH PLATTE RIVERS. As is the case on [&hellip;]<\/p>","protected":false},"author":1,"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\/700"}],"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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=700"}],"version-history":[{"count":2,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/700\/revisions"}],"predecessor-version":[{"id":703,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/700\/revisions\/703"}],"wp:attachment":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=700"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=700"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=700"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}