{"id":3457,"date":"2016-08-17T10:08:31","date_gmt":"2016-08-17T16:08:31","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=3457"},"modified":"2016-08-18T06:41:07","modified_gmt":"2016-08-18T12:41:07","slug":"ftb-08-17-2016-another-unsettled-period-expected-high-country-favored","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=3457","title":{"rendered":"FTB 08-17-2016: Another Unsettled Period Expected, High Country Favored"},"content":{"rendered":"<p>Issue Date: 8\/17\/2016<br>\nIssue Time: 10:03 AM<\/p>\n<p><em>A LOW FLOOD THREAT IS FORECAST FOR PORTIONS OF THE SAN JUAN MOUNTAINS, SOUTHWEST SLOPE, CENTRAL MOUNTAINS, SOUTHEAST MOUNTAINS, SOUTHEAST PLAINS, URBAN CORRIDOR, RATON RIDGE, AND FRONT RANGE.<\/em><\/p>\n<p>Mid-level moisture continues its presence across the state today, fueling another period 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>-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. More so than yesterday, showers and storms will favor the High Country, with <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> coverage expected over the higher terrain, and <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;widely scattered&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;10-25% areal coverage&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>widely scattered<\/span> coverage over the valleys and adjacent lower elevations. A couple <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> storms will also be possible further east this evening, favoring areas near the Palmer Ridge, Cheyenne Ridge, and Raton Ridge.<\/p>\n<p><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2016\/08\/IPW_20160817.png\"><img loading=\"lazy\" class=\"  wp-image-3458 aligncenter\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2016\/08\/IPW_20160817.png\" alt=\"IPW_20160817\" width=\"556\" height=\"249\"\/><\/a><\/p>\n<p>Even though moisture values are fairly average for this time of year, a slight bump this afternoon will push IPW towards 0.8-0.9 inches at the 3 normal reporting stations (Schriever AFB, Boulder, and Grand Junction). This will provide enough moisture for a few bouts with locally moderate-to-heavy rain, mainly in the areas outlined by the low flood threat. Slow storm motions are the main concern driving this threat, as storm organization will not be great and moisture is so-so. The main threats in the low-end, low flood threat will be street\/field ponding\/minor flooding, as well as burn scar runoff issues. The Hayden Pass Fire burn is especially vulnerable to heavy rain, so that will need to be monitored closely. For more details on 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\/2016\/08\/20160817_LFT.png\"><img loading=\"lazy\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2016\/08\/20160817_LFT.png\" alt=\"20160817_LFT\" width=\"886\" height=\"496\" class=\"alignnone size-full wp-image-3462\"\/><\/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, Northeast Plains, Palmer Ridge, Southeast Plains and Raton Ridge:<\/strong><\/h4>\n<p><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;widely scattered&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;10-25% areal coverage&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>widely scattered<\/span> showers\/thunderstorms expected, mainly along\/near the higher terrain. Most activity will be garden variety, resulting in gusty winds, lightning, and periods of light-to-moderate rainfall. One or two stronger storms are possible, mainly across southern extents of the Urban Corridor and western portions of the Southeast Plains. Minor street\/field ponding\/flooding will be possible underneath stronger storms, thus the inclusion in the low-end, low flood threat. Maximum rain rates are as follows:<\/p>\n<p>Urban Corridor, Southeast Plains, and Raton Ridge: 0.8-1.2 inches\/hour<br>\nPalmer Ridge and Northeast Plains: 0.5-0.7 inches\/hour<\/p>\n<p>Timing: Noon &ndash; 10 PM<\/p>\n<h4><strong>Front Range, Southeast Mountains, Northern Mountains, Northwest Slope, San Juan Mountains, Southwest Slope, San Luis Valley, Central Mountains, and Grand Valley:<\/strong><\/h4>\n<p><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 are expected today, favoring the higher terrain, with more <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;widely scattered&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;10-25% areal coverage&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>widely scattered<\/span> coverage across the valleys. The best low-level moisture exists across southern Colorado, which will lead to slightly more efficient rainfall. For this reason, plus the concern for slow storm motions, the issuance of the low-end, low flood threat is warranted. Maximum rain rates are as follows:<\/p>\n<p>Northwest Slope, Northern Mountains, San Luis Valley, and Grand Valley: 0.4-0.7 inches\/hour<br>\nSouthwest Slope and Central Mountains: 0.8-1.2 inches\/hour<br>\nSan Juan Mountains: 1.0-1.4 inches\/hour<br>\nFront Range and Southeast Mountains: 0.6-1.1 inches\/hour<\/p>\n<p>Timing: 11 AM &ndash; 11 PM, with 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 continuing into the early morning hours<\/p>","protected":false},"excerpt":{"rendered":"<p>Issue Date: 8\/17\/2016 Issue Time: 10:03 AM A LOW FLOOD THREAT IS FORECAST FOR PORTIONS OF THE SAN JUAN MOUNTAINS, SOUTHWEST SLOPE, CENTRAL MOUNTAINS, SOUTHEAST MOUNTAINS, SOUTHEAST PLAINS, URBAN CORRIDOR, RATON RIDGE, AND FRONT RANGE. Mid-level moisture continues its presence across the state today, fueling another period 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>-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. More so than yesterday, showers [&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\/3457"}],"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=3457"}],"version-history":[{"count":2,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/3457\/revisions"}],"predecessor-version":[{"id":3463,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/3457\/revisions\/3463"}],"wp:attachment":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3457"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3457"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3457"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}