{"id":2880,"date":"2016-06-25T09:24:32","date_gmt":"2016-06-25T15:24:32","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=2880"},"modified":"2016-06-25T09:24:48","modified_gmt":"2016-06-25T15:24:48","slug":"ftb-06-25-2016-another-day-of-rumbling-thunderstorms","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=2880","title":{"rendered":"FTB 06-25-2016: Another Day of Rumbling Thunderstorms"},"content":{"rendered":"<p>Issue Date: 6\/25\/2016<br>\nIssue Time: 9:22 AM<\/p>\n<p><em>A LOW FLOOD THREAT IS FORE FOR PORTIONS OF THE SOUTHEAST PLAINS, RATON RIDGE, PALMER RIDGE, FRONT RANGE, SOUTHEAST MOUNTAINS, AND URBAN CORRIDOR.<\/em><\/p>\n<p>Current water vapor analysis shows the upper-level low\/<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> sliding across the northern Rockies\/northern high plains, ridging over central US, and ridging building along the West Coast. Within this pattern, dry air is being transported into western\/northwestern Colorado from the west\/southwest, and mid-level moisture (green arrow) continues to be funneled into southern\/eastern Colorado. Meanwhile, a cool front is shifting southward across the state today, later stalling over the I-70 corridor in the mountains and near Highway 50 across the lower elevations of eastern Colorado.<\/p>\n<p>The plume of moisture and location of the cool front will do a good job delineating the areas expecting the majority of shower\/thunderstorm activity during this period. Over the mountains, areas along and south of I-70 will see the bulk of activity, with coverage generally increasing from north to south and west to east. North of I-70 will remain mainly dry today, minus a shower or two over the Northern Mountains and northern extents of the Front Range.<\/p>\n<p><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2016\/06\/WV_20160625.png\"><img loading=\"lazy\" class=\"  wp-image-2881 aligncenter\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2016\/06\/WV_20160625.png\" alt=\"WV_20160625\" width=\"521\" height=\"393\"\/><\/a><\/p>\n<p>To the east, the Northeast Plains and portions of the Urban Corridor north of I-70 will see very little activity, with only 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> thunderstorm or two possible near the higher terrain and along the Cheyenne Ridge. Brief periods of light-to-moderate rainfall are possible, but the main threats from any of this activity will be gusty winds and lightning. To the south of I-70, coverage will increase (just as moisture increases) from north to south. <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> thunderstorms will be capable of producing locally heavy rainfall, strong winds, small hail, and lightning. A couple of storms will become marginally severe, producing hail up to 1.5 inches in diameter and strong winds up to 60 mph.<\/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.0gbb4pmd\/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>Urban Corridor (north of I-70) and Northeast Plains:<\/strong><\/h4>\n<p>Mostly sunny and a bit cooler today, with 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> shower\/thunderstorm or two along\/near the Front Range and Cheyenne Ridge. Drier air has been filtered in and will keep rain rates sufficiently beneath flooding concerns. Maximum rain rates will be 0.2-0.4 inches\/hour.<\/p>\n<p>Timing: 2 PM &ndash; 9 PM<\/p>\n<h4><strong>Urban Corridor (south of I-70), Palmer Ridge, Raton Ridge, and Southeast Plains:<\/strong><\/h4>\n<p>Partly sunny 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>-to-<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\/thunderstorms this afternoon\/evening. A few will be strong\/severe, with the main threats being locally heavy rainfall, hail (up to 1-1.5 inches in diameter), strong winds (up to 60 mph), and lightning. Maximum rain rates will vary:<\/p>\n<p>Urban Corridor: 0.8-1.4 inches\/hour<br>\nPalmer Ridge: 1.2-1.6 inches\/hour<br>\nRaton Ridge and Southeast Plains: 2.0-3.0 inches\/hour<\/p>\n<p>Timing: Noon &ndash; 10 PM, with a couple thunderstorms rumbling across the far Southeast Plains\/Raton Ridge until 1 AM.<\/p>\n<h4><strong>Front Range, Central Mountains, San Juan Mountains, San Luis Valley, and Southeast Mountains:<\/strong><\/h4>\n<p>Partly sunny 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>-to-<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\/thunderstorms expected this afternoon\/evening. Rain rates will remain below <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> thresholds for most areas, but a low threat exists in the southern Front Range and Southeast Mountains where moisture will be best. Maximum rain rates are as follows:<\/p>\n<p>Front Range and Southeast Mountains: 0.8-1.2 inches\/hour<br>\nCentral Mountains, San Juan Mountains, and San Luis Valley: 0.4-0.6 inches\/hour<\/p>\n<p>Timing: 11 AM &ndash; 9 PM<\/p>\n<h4><strong>Northern Mountains, Northwest Slope, Grand Valley, and Southwest Slope:<\/strong><\/h4>\n<p>Mostly sunny with temperatures remaining near, or slightly above, normal. Areas to the north of the front will be a few degrees cooler than yesterday. 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> shower\/weak thunderstorm or two cannot be ruled out over the higher terrain, resulting in mainly gusty winds and lightning. Maximum rain rates will be below 0.4 inches\/hour.<\/p>\n<p>Timing: 11 AM &ndash; 7 PM<\/p>","protected":false},"excerpt":{"rendered":"<p>Issue Date: 6\/25\/2016 Issue Time: 9:22 AM A LOW FLOOD THREAT IS FORE FOR PORTIONS OF THE SOUTHEAST PLAINS, RATON RIDGE, PALMER RIDGE, FRONT RANGE, SOUTHEAST MOUNTAINS, AND URBAN CORRIDOR. Current water vapor analysis shows the upper-level low\/<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> sliding across the northern Rockies\/northern high plains, ridging over central US, and ridging building along the West [&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\/2880"}],"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=2880"}],"version-history":[{"count":2,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/2880\/revisions"}],"predecessor-version":[{"id":2883,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/2880\/revisions\/2883"}],"wp:attachment":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2880"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2880"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2880"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}