{"id":9217,"date":"2019-06-04T08:18:19","date_gmt":"2019-06-04T14:18:19","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=9217"},"modified":"2019-06-04T08:23:01","modified_gmt":"2019-06-04T14:23:01","slug":"ftb-06-04-2019-highs-remain-slightly-above-average-with-another-round-of-afternoon-thunderstorm-forecast-favoring-southern-colorado","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=9217","title":{"rendered":"FTB 06-04-2019: Highs Remain Slightly above Average with another Round of Afternoon Thunderstorm Forecast Favoring Southern Colorado"},"content":{"rendered":"<p>Issue Date: Tuesday, June 4th, 2019<br>\nIssue Time: 8:30AM MDT<\/p>\n<p><em>&ndash;Flooding is <strong>NOT<\/strong> expected today<\/em><\/p>\n<p>Minus a few high clouds over the San Juan Mountains, which are dispersing quickly, it&rsquo;s a clear start to the day. Still quite a bit of snowpack over the mountains in the visible image below. This will continue to melt with above average temperatures forecast&nbsp;again today. Expect high temperatures to be on par with high temperatures from yesterday. The upper level low is currently over the Baja CA Peninsula and will move east today, which will center it over south, central Arizona and the Mexico border by this evening. This means upper flow will remain westerly except over the southwest corner where flow will have more of a southwesterly component.<\/p>\n<p><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2019\/06\/vis_20190604.png\"><img loading=\"lazy\" class=\"aligncenter wp-image-9218\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2019\/06\/vis_20190604.png\" alt=\"\" width=\"650\" height=\"481\"\/><\/a><\/p>\n<p>A drier air mass remains over the state, which should limit the heavy rainfall threat once again. <span class=\"glossaryLink\"  aria-describedby=\"tt\"  data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;PW&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;(Stands for: Precipitable Water) 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\"}]'>PW<\/span> was measured at 0.43 inches at Denver this morning. There is a slight increase in mid-level energy, so expecting storm coverage to be more <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;widespread&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;greater than 60% areal coverage&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>widespread<\/span> over the mountains this afternoon. The weak thunderstorms may produce some small hail, but high-bases will make the main threats today 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 and lightning. As storms move into the eastern plains this afternoon, better moisture will reside near Colorado&rsquo;s eastern border, so expecting storms to become more efficient at producing rainfall in this area. Decent storm motion should only allow for moderate rainfall totals. Overall, similar setup to yesterday, but expecting storms to be more <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;widespread&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;greater than 60% areal coverage&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>widespread<\/span> over the southern half of Colorado. Flooding is not forecast.<\/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. For Zone-Specific forecasts, scroll below the map.<\/p>\n<p><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2019\/05\/FTB_No_Flood_Threat_2019.png\"><img loading=\"lazy\" class=\"aligncenter wp-image-8803\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2019\/05\/FTB_No_Flood_Threat_2019.png\" alt=\"\" width=\"880\" height=\"580\"\/><\/a><\/p>\n<h3><strong>Zone-Specific Forecasts:<\/strong><\/h3>\n<h4><strong>Southeast Mountains, San Juan Mountains, Southeast Plains, Raton Ridge, Northeast Plains, Palmer Ridge: <\/strong><\/h4>\n<p>Increased storm activity is forecast across southern Colorado and the eastern Colorado border. Max 1-hr rain rates over the San Juans will be 0.4 inches with more general rain rates in the 0.1 to 0.25 inch\/hour range. Thus, stronger thunderstorms that track near the 416 burn area should be monitored closely. Over the Southeast Mountains max 1-hr rain rates will remain below 0.25 inches, so not too worried for recent burn areas here. Over the eastern plains, <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> 1-hr totals up to 1.3 inches are possible though most storms will produce 1-hr rain rates between 0.8 and 1 inch.<\/p>\n<p>Primetime: 11:30AM to 10PM<\/p>\n<h4><strong>Front Range, Urban Corridor, Northern Mountains, Central Mountains, Northwest Slope, Grand Valley, Southwest Slope, San Luis Valley:<\/strong><\/h4>\n<p>Similar to yesterday, storms will form over the mountains by early afternoon. A bit drier air is in place over these regions, so storms will be high-based once again. This will translate to the main threats today being lightning and gusty winds. Not totally out of the question for a couple of weak thunderstorms to produce 0.25 inch hail. Max 1-hr rain rates over the mountains are expected to be 0.3 inches (Front Range) and 0.15 inches (west of the <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;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\"}]'>Divide<\/span>). Not expecting totals above <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;trace&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;a descriptor used when precipitation occurs, but the amount is too small (less than 0.01&amp;quot;) to be measured by a weather instrument such as a rain gauge&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>trace<\/span> amounts for the lower elevations in western CO with most storms will only producing cloud cover. A storm might wander into the Urban Corridor again this afternoon, but totals are expected to remain under 0.3 inches. The Conejos and San Antonio Rivers are still under a Flood <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;Warning&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;a weather warning is issued when a specific weather event is imminent or occurring&amp;lt;\/p&amp;gt;\n&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>Warning<\/span> for high flows and minor flooding of low-lying areas. This is expected to continue for the next few days, but flood stage remains only at Action level today. <\/p>\n<p>Primetime: 12PM to 9PM<\/p>","protected":false},"excerpt":{"rendered":"<p>Issue Date: Tuesday, June 4th, 2019 Issue Time: 8:30AM MDT &ndash;Flooding is NOT expected today Minus a few high clouds over the San Juan Mountains, which are dispersing quickly, it&rsquo;s a clear start to the day. Still quite a bit of snowpack over the mountains in the visible image below. This will continue to melt [&hellip;]<\/p>","protected":false},"author":8,"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\/9217"}],"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\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9217"}],"version-history":[{"count":4,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/9217\/revisions"}],"predecessor-version":[{"id":9222,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/9217\/revisions\/9222"}],"wp:attachment":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9217"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9217"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9217"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}