{"id":6129,"date":"2017-08-27T08:32:40","date_gmt":"2017-08-27T14:32:40","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=6129"},"modified":"2017-08-27T08:32:40","modified_gmt":"2017-08-27T14:32:40","slug":"ftb-08-27-2017-weak-cool-front-bringing-a-few-changes","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=6129","title":{"rendered":"FTB 08-27-2017: Weak Cool Front Bringing a Few Changes"},"content":{"rendered":"<p>Issue Date: 8\/27\/2017<br>\nIssue Time: 8:35 AM<\/p>\n<p><em>NO FLOOD THREAT IS FORECAST.<\/em><\/p>\n<p>Minimal changes to the forecast can be attributed to a weak cool front passing through eastern Colorado this morning. First, the cool front will help knock afternoon high temperatures down to seasonal levels across the plains. Second, behind the front, weak upslope flow will help back enough moisture into the foothills\/mountains and provide enough lift to produce <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> mountain storms over the Front Range and Southeast Mountains. One or two of these storms may drift over areas along\/west of I-25, bringing mainly gusty winds and brief rainfall to those areas. Finally, the cool front will *attempt* to spark 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> thunderstorms over the Southeast Plains this afternoon\/evening, mainly along and south of Highway 50.<\/p>\n<p><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2017\/08\/WV_20170827.png\"><img loading=\"lazy\" class=\" wp-image-6130 aligncenter\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2017\/08\/WV_20170827.png\" alt=\"\" width=\"768\" height=\"422\"\/><\/a><\/p>\n<p>For western Colorado, the mountains and adjacent valleys will once again see <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\/storms, especially over the Central Mountains, Southwest Slope, San Juan Mountains, and San Luis Valley. The main impacts from this activity will be gusty winds up to 40 mph and brief light-to-moderate rainfall. Most activity will wind down by 9-10 PM tonight, with a few lingering showers\/storms over southern areas until Midnight or so.<\/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.m2iiic0j\/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, Palmer Ridge, Raton Ridge, Northeast Plains, and Southeast Plains:<\/strong><\/h4>\n<p>Conditions will be dry for the majority of the region today. Areas along\/west of I-25 may see one or two mountain showers\/thunderstorms drift overhead, bringing mainly gusty winds and brief periods of rainfall. Also, the cool front is expected to produce 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 over areas south of Highway 50 in the Southeast Plains region. Maximum rain rates are as follows:<\/p>\n<p>Northeast Plains: N\/A<br>\nUrban Corridor and Palmer Ridge: 0.25-0.5 inches\/hour<br>\nRaton Ridge and Southeast Plains: 0.6-1.2 inches\/hour<\/p>\n<p>Timing: 2 PM &ndash; 10 PM<\/p>\n<h4><strong>Northern Mountains, Northwest Slope, Front Range, Southeast Mountains, Central Mountains, San Luis Valley, San Juan Mountains, Grand Valley, and Southwest Slope:<\/strong><\/h4>\n<p>For the Front Range and Southeast Mountains, upslope flow and a bit more moisture will help kick off <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 throughout the day and into the nighttime hours. Gusty <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 (up to 40 mph) and brief periods of light-to-moderate rainfall are the main threats from this activity.<\/p>\n<p>To the west, mountains and adjacent valleys will once again see <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\/storms as ororgraphic effects and daytime heating play on residual moisture. The main impacts will be gusty <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 to 40 mph and periods of light-to-moderate rainfall. Maximum rain rates are as follows:<\/p>\n<p>Northwest Slope, Grand Valley, and Northern Mountains: 0.1-0.25 inches\/hour<br>\nCentral Mountains, Southwest Slope, Southeast Mountains, and Front Range: 0.4-0.8 inches\/hour<br>\nSan Juan Mountains and San Luis Valley: 0.5-0.9 inches\/hour<\/p>\n<p>Timing: Noon &ndash; 10 PM, with a few lingering showers\/storms over southern areas until Midnight\/1 AM.<\/p>","protected":false},"excerpt":{"rendered":"<p>Issue Date: 8\/27\/2017 Issue Time: 8:35 AM NO FLOOD THREAT IS FORECAST. Minimal changes to the forecast can be attributed to a weak cool front passing through eastern Colorado this morning. First, the cool front will help knock afternoon high temperatures down to seasonal levels across the plains. Second, behind the front, weak upslope flow [&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\/6129"}],"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=6129"}],"version-history":[{"count":1,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/6129\/revisions"}],"predecessor-version":[{"id":6131,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/6129\/revisions\/6131"}],"wp:attachment":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6129"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6129"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6129"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}