{"id":2303,"date":"2016-05-09T09:52:33","date_gmt":"2016-05-09T15:52:33","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=2303"},"modified":"2016-05-09T09:52:57","modified_gmt":"2016-05-09T15:52:57","slug":"ftb-05-09-2016-showerststorms-continue-more-numerous-over-the-high-country","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=2303","title":{"rendered":"FTB 05-09-2016: Showers\/T\u2019storms Continue, More Numerous over the High Country"},"content":{"rendered":"<p>Issue Date: 5\/9\/2016<br>\nIssue Time: 9:52 AM<\/p>\n<p><em>NO FLOOD THREAT IS FORECAST.<\/em><\/p>\n<p>An upper-level <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 shift eastward across Colorado today, bringing another day of unsettled weather to the state. <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;precipitable water&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;The total atmospheric water vapor contained in a vertical column of the atmosphere. It is typically measured in inches, and anomalously (deviation from normal) high values of precipitable water generally correlate to heavy rainfall potential.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>Precipitable water<\/span> values are near average for the lower elevations east of the mountains, but are still elevated across the High Country. The IPW chart shows just that: The Grand Junction station is by itself at the top of the chart (green line), reporting IPW values in the 90th percentile for the date.<\/p>\n<p>The availability of better moisture, plus orographic support, will result in areas along and 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> receiving the bulk of shower\/thunderstorm activity through this period. Snow levels will be around 10,000-11,000 feet during the day, falling to 8,000-9,000 feet overnight. Instability values will be less than previous days, leading to slightly lower rain rates. More details will be given in the zone-specific forecast discussions section. Overnight, expect showers (and a weak thunderstorm or two) to continue as another disturbance shifts across Colorado.<\/p>\n<p><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2016\/05\/IPW_20160509.png\"><img loading=\"lazy\" class=\"  wp-image-2304 aligncenter\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2016\/05\/IPW_20160509.png\" alt=\"IPW_20160509\" width=\"591\" height=\"263\"\/><\/a><\/p>\n<p>East of the mountains and across the lower elevations, showers\/thunderstorms will be <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> in coverage, owing to the presence of less moisture\/instability\/upper-level support than the last few days. The main impacts from any activity in these regions will be lightning, gusty winds, with small hail attending the strongest thunderstorms. Rain rates will remain light, and no flood threat is warranted. Overnight, clouds will increase across northeast Colorado as another disturbance moves across the region.<\/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, Southeast Plains, Palmer Ridge, Raton Ridge, and Northeast Plains:<\/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> showers and thunderstorms expected this afternoon and evening, diminishing after sunset as daytime heating ceases. The main impacts from any activity will be light rain, lightning, and gusty winds. Small hail will be possible under the stronger thunderstorms, relatively speaking. Maximum rain rates will vary, with 0.25-0.5 inches\/hour for western locations, and 0.6-0.8 inches\/hour for locations along\/near the eastern border.<\/p>\n<p>High temperatures will be right around average for this time of year. Clouds will increase from north to south overnight as the next disturbance moves into the region.<\/p>\n<p>Timing: Noon &ndash; 8 PM<\/p>\n<h4><strong>Front Range, Southeast Mountains and San Luis Valley:<\/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;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 and weak thunderstorms expected over the higher terrain, with a couple moving overhead of the San Luis Valley. Rain rates will generally be low, with maximum rates from thunderstorms of 0.15-0.35 inches\/hour. Activity will diminish after sunset, with 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 lingering over the higher terrain through the overnight hours.<\/p>\n<p>Timing: 11 AM &ndash; 9 PM<\/p>\n<h4><strong>Northwest Slope, Northern Mountains, Central Mountains, Grand Valley, San Juan Mountains, and Southwest Slope:<\/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 and thunderstorms are expected today and tonight, with a few lingering into the overnight and morning hours tomorrow. Rain rates will be low, maximizing at 0.3-0.6 inches\/hour. Extended periods of rainfall will allow for some locations to pick up more than 0.6 inches of rain by tomorrow morning, mainly across the higher elevations of the Central Mountains and San Juan Mountains regions.<\/p>\n<p>Timing: Activity will increase from now through sunset, and then diminish a bit for the overnight hours. Rain chances exist throughout the entire period, especially across the higher terrain.<\/p>","protected":false},"excerpt":{"rendered":"<p>Issue Date: 5\/9\/2016 Issue Time: 9:52 AM NO FLOOD THREAT IS FORECAST. An upper-level <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 shift eastward across Colorado today, bringing another day of unsettled weather to the state. <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;precipitable water&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;The total atmospheric water vapor contained in a vertical column of the atmosphere. It is typically measured in inches, and anomalously (deviation from normal) high values of precipitable water generally correlate to heavy rainfall potential.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>Precipitable water<\/span> values are near average for the lower elevations east of the mountains, but are still elevated across the High Country. The IPW chart [&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\/2303"}],"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=2303"}],"version-history":[{"count":2,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/2303\/revisions"}],"predecessor-version":[{"id":2306,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/2303\/revisions\/2306"}],"wp:attachment":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2303"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2303"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2303"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}