{"id":4495,"date":"2017-05-15T09:17:07","date_gmt":"2017-05-15T15:17:07","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=4495"},"modified":"2017-05-16T06:30:17","modified_gmt":"2017-05-16T12:30:17","slug":"ftb-05-15-2017-warmer-today-with-a-chance-of-showersthunderstorms","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=4495","title":{"rendered":"FTB 05-15-2017: Warmer Today with a Chance of Showers\/Thunderstorms"},"content":{"rendered":"<p>Issue Date: 5\/15\/2017<br>\nIssue Time: 9:20 AM<\/p>\n<p><em>A MODERATE FLOOD THREAT IS FORECAST TODAY FOR A PORTION OF THE ARKANSAS AND PURGATOIRE RIVERS DUE TO CONTINUED FLOODING FROM RECENT HEAVY RAINFALL.<\/em><\/p>\n<p>The upper <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> will continue to dig along the West Coast today, placing the upper-level low over Southern California\/Nevada today\/tonight. Due to this, warm, southwest flow aloft will continue today, pushing temperatures above yesterday&rsquo;s readings. Additionally, a bit of upper-level moisture will stream across the state, bringing a few extra high clouds for this afternoon and evening.<\/p>\n<p>All is not clear, however, as a couple showers and thunderstorms are expected in a two areas. First, the Northern Mountains, and northern portions of the Front Range and foothills will notice 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 this afternoon\/evening as a sufficient-enough moisture surge pushes through. These showers will be fighting very dry low-level air, so nothing more than a few sprinkles and 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 are expected.<\/p>\n<p><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2017\/05\/WV_20170515.jpg\"><img loading=\"lazy\" class=\" wp-image-4496 aligncenter\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2017\/05\/WV_20170515.jpg\" alt=\"\" width=\"585\" height=\"329\"\/><\/a><\/p>\n<p>Second, a lee surface <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>\/<span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;dryline&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;A low-level, small-scale boundary that separates dry air from moist air. Storms develop along it because the dry air (behind the boundary) is less dense than the moisture-rich air (ahead of the boundary). Typically, it advances eastward during the afternoon and retreats westward at night.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>dryline<\/span> will lie across far eastern portions of the Eastern Plains and Northeast Plains. Along this boundary, a couple thunderstorms are expected to develop this afternoon\/evening and quickly move eastward into Kansas. Brief periods of heavy rainfall will attend these storms, with strong winds, lightning, and hail up to 1.5 inches in diameter the main impacts. No flooding is expected due to quick storm motions. For more information regarding rain rates and timing, please see the zone-specific forecast discussions below.<\/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.<br><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2017\/05\/MFT_20170515.png\"><img loading=\"lazy\" class=\"size-full wp-image-4514 aligncenter\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2017\/05\/MFT_20170515.png\" alt=\"\" width=\"881\" height=\"495\"\/><\/a><\/p>\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, Northeast Plains, Southeast Plains, and Raton Ridge:<\/strong><\/h4>\n<p>Mostly sunny skies are expected today with temperatures a few degrees warmer than yesterday&rsquo;s readings. Far eastern portions of the Northeast and Southeast Plains will experience a couple thunderstorms this afternoon\/evening before they race out of Colorado to the east. Maximum rain rates underneath thunderstorms will be 0.3-0.6 inches\/hour.<\/p>\n<p>Timing: 2 PM &ndash; 8 PM<\/p>\n<h4><strong>Front Range and Northern Mountains:<\/strong><\/h4>\n<p>Mostly sunny skies and dry conditions will be the story for the majority of the area. However, a couple of <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 are expected to develop late this afternoon and into the evening over the higher terrain. Gusty winds and a few sprinkles will be the only result.<\/p>\n<p>Timing: 4 PM &ndash; Midnight<\/p>\n<h4><strong>Northwest Slope, Central Mountains, Southeast Mountains, San Juan Mountains, San Luis Valley, Southwest Slope, and Grand Valley:<\/strong><\/h4>\n<p>Mostly sunny skies and dry conditions are the story today, with increasing high clouds late this afternoon\/evening. Fire danger is elevated today due to gusty winds and very little moisture, so be careful with anything that may start a fire today.<\/p>","protected":false},"excerpt":{"rendered":"<p>Issue Date: 5\/15\/2017 Issue Time: 9:20 AM A MODERATE FLOOD THREAT IS FORECAST TODAY FOR A PORTION OF THE ARKANSAS AND PURGATOIRE RIVERS DUE TO CONTINUED FLOODING FROM RECENT HEAVY RAINFALL. The upper <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> will continue to dig along the West Coast today, placing the upper-level low over Southern California\/Nevada today\/tonight. Due to this, warm, [&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\/4495"}],"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=4495"}],"version-history":[{"count":3,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/4495\/revisions"}],"predecessor-version":[{"id":4516,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/4495\/revisions\/4516"}],"wp:attachment":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4495"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4495"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4495"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}