{"id":16248,"date":"2021-09-24T08:24:38","date_gmt":"2021-09-24T14:24:38","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=16248"},"modified":"2021-09-25T08:31:02","modified_gmt":"2021-09-25T14:31:02","slug":"spm-09-24-2021","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=16248","title":{"rendered":"SPM 09-24-2021: Weak Cold-Frontal Passage Brings Light, High-Elevation Snowfall"},"content":{"rendered":"<p>Issue Date: Friday, September 24th, 2021<br>\nIssue Time: 10:15 AM MDT<\/p>\n<h3>Summary:<\/h3>\n<p>Thursday started out overall uneventfully, with temperatures creeping back up just above seasonal normal across the state. By afternoon however, a weak but fast-moving cold-frontal passage made its away from north to south across the state. This helped to kick off <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> evening showers, including snow, in the high elevations of the Northern, Central, San Juan, and Front Range Mountains. Several SNOTEL stations <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> across the high elevations picked up 0.1 inches of liquid equivalent precipitation. For the rest of Colorado, dry weather prevailed. As expected, no flooding was reported on Thursday. For rainfall estimates (or lack thereof) in your area, check out the State Precipitation Map at the bottom of today&rsquo;s post. Note: a small area of precipitation appears to be over the Lincoln-Kit Carson-Cheyenne county area. This is actually a <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;radar artifact&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;returns on weather radar that are not weather phenomena that typically occur due to problems with the radar beam being transmitted, received, or interpreted properly&amp;lt;\/p&amp;gt;\n&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>radar artifact<\/span> from a large wind farm, rather than precipitation. <\/p>\n<p>Every year, SmokyMountains.com produces a fall foliage map highlighting which week peak fall colors will occur across the county. The wet spring and warm summer delayed peak fall foliage a bit across Colorado, but it has arrived for the northwest portion of the state. The <a href=\"https:\/\/smokymountains.com\/fall-foliage-map\/\" rel=\"noopener\" target=\"_blank\">slider map found here<\/a> can help decide when to head out and where for the best leaf peeping! <\/p>\n<blockquote class=\"twitter-tweet tw-align-center\">\n<p lang=\"en\" dir=\"ltr\">It's the best time of the year! <a href=\"https:\/\/twitter.com\/hashtag\/cowx?src=hash&amp;ref_src=twsrc%5Etfw\">#cowx<\/a> <a href=\"https:\/\/t.co\/rl9sCjDh7V\">pic.twitter.com\/rl9sCjDh7V<\/a><\/p>\n<p>&mdash; Kylie Bearse (@KylieBearseWX) <a href=\"https:\/\/twitter.com\/KylieBearseWX\/status\/1441400252355940362?ref_src=twsrc%5Etfw\">September 24, 2021<\/a><\/p><\/blockquote>\n<p> <script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<h4 class=\"collapseomatic \" id=\"id6a1c4e60d849b\" tabindex=\"0\" title=\"Click Here For Map Overview\">Click Here For Map Overview<\/h4><div id=\"target-id6a1c4e60d849b\" class=\"collapseomatic_content \">\nThe map below shows radar-estimated, rainfall gage-adjusted Quantitative Precipitation Estimates (<span class=\"glossaryLink\"  aria-describedby=\"tt\"  data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;QPE&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;&amp;lt;strong&amp;gt;Q&amp;lt;\/strong&amp;gt;uantitative &amp;lt;strong&amp;gt;P&amp;lt;\/strong&amp;gt;recipitation &amp;lt;strong&amp;gt;E&amp;lt;\/strong&amp;gt;stimate; an estimate of the amount of precipitation that has fallen at a particular location or across a region based on several different data sources, such as radar or satellite; QPE is often calculated using remotely-sensed data sources&lt;\/div&gt;\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>QPE<\/span>) across Colorado. The map is updated daily during the operational season (May 1 &ndash; Sep 30) by 11AM. The following six layers are currently available: 24-hour, 48-hour and 72-hour total precipitation, as well as maximum 1-hour, 2-hour and 6-hour precipitation over the past 24 hour period (to estimate where <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;flash flooding&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;flash flooding can refer to usually dry areas becoming rapidly inundated with water, or rapid water level rises on streams, creeks, or rivers beyond flood stage; typically caused by heavy rainfall, but can also be caused by meltwater&amp;lt;\/p&amp;gt;\n&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>flash flooding<\/span> may have occurred). The accumulation ending time is 7AM of the date shown in the bottom right corner. Also shown optionally are vulnerable fire burn areas (post 2012), which are updated throughout the season to include new, vulnerable burn areas. The home button in the top left corner resets the map to the original zoom.\n<\/div>\n<p><img loading=\"lazy\" src=\"http:\/\/www.dewberry-hydromet.com\/STP\/Snapshots\/SPM\/SPM_20210924_snap.png\" width=\"880\" height=\"616\" class=\"alignnone size-large\"\/><\/p>","protected":false},"excerpt":{"rendered":"<p>Issue Date: Friday, September 24th, 2021 Issue Time: 10:15 AM MDT Summary: Thursday started out overall uneventfully, with temperatures creeping back up just above seasonal normal across the state. By afternoon however, a weak but fast-moving cold-frontal passage made its away from north to south across the state. This helped to kick off <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> evening [&hellip;]<\/p>","protected":false},"author":14,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[4],"tags":[],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/16248"}],"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\/14"}],"replies":[{"embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=16248"}],"version-history":[{"count":5,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/16248\/revisions"}],"predecessor-version":[{"id":16256,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/16248\/revisions\/16256"}],"wp:attachment":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=16248"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=16248"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=16248"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}