{"id":16952,"date":"2022-05-22T09:56:05","date_gmt":"2022-05-22T15:56:05","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=16952"},"modified":"2022-05-22T09:56:07","modified_gmt":"2022-05-22T15:56:07","slug":"ftb-05-22-2022-warmer-temperatures-isolated-precipitation","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=16952","title":{"rendered":"FTB 05-22-2022: Warmer Temperatures &#038; Isolated Precipitation"},"content":{"rendered":"<p>Issue Date: Sunday, May 22nd, 2022<br>\nIssue Time: 9:55AM MDT<\/p>\n<p><em>&mdash;<\/em><em> Flooding is&nbsp;<\/em><strong><em>NOT&nbsp;<\/em><\/strong><em>expected today<\/em><\/p>\n<p>It will finally start to get warmer today with the ongoing snow and rain across the Palmer Range\/southern Front Range beginning to diminish as the jet and mid-level energy move out of the area. <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;zonal&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;refers to the east-west direction; usually used to describe atmospheric flow that roughly follows lines of latitude&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>Zonal<\/span> flow from the <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;jet stream&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;Relatively strong winds concentrated within a narrow stream in the atmosphere. General weather patterns are related closely to the position, strength and orientation of the jet stream.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>jet stream<\/span>, that is currently located over eastern Colorado, is forecast to begin to weaken through the morning, although there will still be a good speed max that remains over the Palmer Ridge and Southeast Plains late this afternoon into the overnight hours. This should provide some extra lift for storms that develop over the area this afternoon and help keep some light precipitation going over the Southeast Plains tonight. Westerly winds aloft are expected to shift to more WSW as the next <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;shortwave&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;A disturbance in the mid or upper part of the atmosphere which induces upward motion ahead of it.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>shortwave<\/span> digs south into Utah (orange &ldquo;X&rdquo; below). This <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;shortwave&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;A disturbance in the mid or upper part of the atmosphere which induces upward motion ahead of it.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>shortwave<\/span> is expected to produce some mid-level lift across the state, and paired with the diurnal flow, should help develop <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> precipitation over the mountains this afternoon. <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> has dropped to 0.26 inches at Grand Junction, so west, expect the precipitation to be confined to the higher elevations. Storms that attempt to develop across the lower elevations are forecast to produce more wind than measurable rainfall.<\/p>\n<p><img loading=\"lazy\" class=\"aligncenter wp-image-16953\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/05\/vis_20220522.png\" alt=\"\" width=\"675\" height=\"424\" srcset=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/05\/vis_20220522.png 1262w, https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/05\/vis_20220522-300x188.png 300w, https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/05\/vis_20220522-1024x643.png 1024w, https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/05\/vis_20220522-768x482.png 768w\" sizes=\"(max-width: 675px) 100vw, 675px\"\/><\/p>\n<p>Over eastern Colorado, <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 0.36 inches in Denver and is likely close to 0.50 inches over the Southeast Plains, so it has dried out a little bit when compared to the last couple of days. Southerly surface winds will gain an easterly component with the diurnal flow late this afternoon, which typically favors precipitation development over the Palmer Ridge and northern Front Range\/Urban Corridor. With only light to moderate rainfall forecast for the afternoon and evening hours, flooding is NOT anticipated. Precipitation is forecast to continue over the Southeast Plains\/Palmer Ridge\/Southeast Mountains and northern Front Range tonight. With a cold front pushing in from the northwest, it should help to lower the freezing line over Front Range fairly quickly. So, anticipate some more snowfall by morning for the mountain zones east.<\/p>\n<p>One last note, with the warmer temperatures and snow line dropping today, rain on snow may be possible over <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> areas. This could help increase local runoff and cause a spike in streamflow. The only <a href=\"https:\/\/water.weather.gov\/ahps\/region.php?state=co\">AHPS<\/a> station currently approaching &ldquo;Action&rdquo; stage is the Arkansas River near Avondale. While there have been steady increases to the streamflow up north as well, base flows were fairly low to start, so not anticipating any flood risk today.<\/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. If there is a threat, hover over the threat areas for more details, and click on burn areas to learn more about them. For Zone-Specific forecasts, scroll below the threat map.<\/p>\n<p><img loading=\"lazy\" class=\"wp-image-13436 aligncenter\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/05\/FTB_NoThreat_2022_light.png\" alt=\"\" width=\"768\" height=\"573\"\/><\/p>\n<h3><strong>Zone-Specific Forecasts:<\/strong><\/h3>\n<h4><strong>Front Range, Southeast Mountains, Palmer Ridge, Urban Corridor, Northeast Plains, Raton Ridge &amp; Southeast Plains:<\/strong><\/h4>\n<p>High temperatures over the lower elevations should reach into the upper 50Fs (north) and 60Fs (south). Over the mountains, it will still be quite cool with highs reaching into the 40Fs for the foothills and remaining in the 30Fs for the higher elevation valleys.<\/p>\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> precipitation is forecast for the mountains today with precipitation forecast to continue over the northern Front Range and Southeast Mountains tonight. Max liquid equivalent up to 0.85 inches will be possible through tomorrow morning. Over the 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> totals up to 0.60 inches will be possible. Due to the gradual nature of the rainfall and snow at the higher elevations, there is NO flood threat issued.<\/p>\n<p>Primetime: Ongoing<\/p>\n<h4><strong>Central Mountains, Northern Mountains, San Juan Mountains, Northwest Slope, San Luis Valley, Grand Valley &amp; Southwest Slope:<\/strong><\/h4>\n<p>It&rsquo;s going to start heating back up with highs across the lower elevations reaching into the upper 60Fs and 70Fs. Afternoon high temperatures across the mountain valleys should reach into the 40Fs and low 50Fs. <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> precipitation is forecast for the mountains near 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> this afternoon\/evening with overnight snow forecast for the eastern San Juan Mountains. <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> liquid totals up to 0.30 inches will be possible by morning. It could get breezy this afternoon with winds from the west forecast to be in the 15 to 20 mph range as the <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> apprroaches.&nbsp;A cold front looks to slide in from the northwest this evening, keeping overnight lows chilly for the northwest corner.<\/p>\n<p>Primetime: 11AM to 6AM<\/p>","protected":false},"excerpt":{"rendered":"<p>Issue Date: Sunday, May 22nd, 2022 Issue Time: 9:55AM MDT &mdash; Flooding is&nbsp;NOT&nbsp;expected today It will finally start to get warmer today with the ongoing snow and rain across the Palmer Range\/southern Front Range beginning to diminish as the jet and mid-level energy move out of the area. <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;zonal&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;refers to the east-west direction; usually used to describe atmospheric flow that roughly follows lines of latitude&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>Zonal<\/span> flow from the <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;jet stream&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;Relatively strong winds concentrated within a narrow stream in the atmosphere. General weather patterns are related closely to the position, strength and orientation of the jet stream.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>jet stream<\/span>, that [&hellip;]<\/p>","protected":false},"author":8,"featured_media":0,"comment_status":"closed","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\/16952"}],"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=16952"}],"version-history":[{"count":2,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/16952\/revisions"}],"predecessor-version":[{"id":16955,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/16952\/revisions\/16955"}],"wp:attachment":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=16952"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=16952"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=16952"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}