{"id":19179,"date":"2022-08-17T10:25:02","date_gmt":"2022-08-17T16:25:02","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=19179"},"modified":"2022-08-18T09:29:18","modified_gmt":"2022-08-18T15:29:18","slug":"spm-08-17-2022-another-day-of-heavy-rain","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=19179","title":{"rendered":"SPM 08-17-2022: Another Day of Heavy Rain"},"content":{"rendered":"<p>Issue Date: Wednesday, August 17th, 2022<br>\nIssue Time: 10:25 MDT<\/p>\n<h3>Summary:<\/h3>\n<p>It was another active day for heavy rain across Colorado yesterday, and the Denver Metro Area\/Urban Corridor saw an early start! By 9 AM, Broomfield had already received 3.5&rdquo; of rainfall from a nearly stationary thunderstorm that lasted several hours.<\/p>\n<p>In total, 3.70&rdquo; was recorded in Broomfield in just 3 hours, which is 25% of the average annual rainfall! Throughout the afternoon, other areas of the city continued to see significant rainfall as well- up to 1.51&rdquo; in Aurora. Two flood advisories were issued north of Denver, with many reports of streets, parks, and rivers with severe flooding specifically near Broomfield, Thornton, and Louisville. Some of the flooding events observed include:<\/p>\n<p>&bull; Rock Creek in Lafayette was completely submerged, with a report of at least 5 feet of water over the bike path<br>\n&bull; 6&rdquo; of water over Highway 287 in Broomfield<br>\n&bull; Spader Way in Boulder was closed between 1st Ave. and DesCombes Drive due to flooding<br>\n&bull; Continued flooding of Toll Gate Creek in Aurora<br>\n&bull; Midway Park in Broomfield was severely flooded<\/p>\n<blockquote class=\"twitter-tweet tw-align-center\">\n<p dir=\"ltr\" lang=\"en\">Check out some of the flooding at a park in Broomfield, Colorado this morning.<\/p>\n<p>The <a href=\"https:\/\/twitter.com\/hashtag\/Denver?src=hash&amp;ref_src=twsrc%5Etfw\">#Denver<\/a> suburb received 3.70 inches of rain in just 3 hours today. For perspective, that&rsquo;s 25% of their annual rainfall! <a href=\"https:\/\/twitter.com\/hashtag\/COwx?src=hash&amp;ref_src=twsrc%5Etfw\">#COwx<\/a> <a href=\"https:\/\/t.co\/kFhE7u1ti9\">pic.twitter.com\/kFhE7u1ti9<\/a><\/p>\n<p>&mdash; FOX Weather (@foxweather) <a href=\"https:\/\/twitter.com\/foxweather\/status\/1559619754523967488?ref_src=twsrc%5Etfw\">August 16, 2022<\/a><\/p><\/blockquote>\n<p><script async=\"\" src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<p>Only one stream reached flood stage yesterday, this time at Sand Creek near Commerce City. View the <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;hydrograph&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;a graph depicting river flow over time&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>hydrograph<\/span> below to see the significant increase in discharge from rainfall Monday and Tuesday, which ultimately pushed the creek into minor flood stage yesterday morning.<\/p>\n<p><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/08\/hydrograph.png\"><img loading=\"lazy\" class=\"wp-image-19182 aligncenter\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/08\/hydrograph-300x232.png\" alt=\"\" width=\"731\" height=\"565\" srcset=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/08\/hydrograph-300x232.png 300w, https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/08\/hydrograph.png 757w\" sizes=\"(max-width: 731px) 100vw, 731px\"\/><\/a><\/p>\n<p>The Southeast Plains and south-central part of the state also saw heavy rainfall and increased activity yesterday from afternoon and evening storms. In the Southeast Plains, highest totals include 2.58&rdquo; via a trained spotter in Walsh and 2.28&rdquo; near Las Animas via a Mesowest gage. Most other observations ranged from 0.1&rdquo;-2&rdquo;. Moving west, totals over the Raton Ridge to San Luis Valley were generally between 0.15&rdquo;-1.5&rdquo;, including up to 1.4&rdquo; near Trinidad, 1.49&rdquo; southwest of Pueblo, and 1.24&rdquo; near Huerfano, via <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;CoCoRaHS&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;&amp;lt;strong&amp;gt;Co&amp;lt;\/strong&amp;gt;mmunity &amp;lt;strong&amp;gt;Co&amp;lt;\/strong&amp;gt;llaborative &amp;lt;strong&amp;gt;Ra&amp;lt;\/strong&amp;gt;in, &amp;lt;strong&amp;gt;H&amp;lt;\/strong&amp;gt;ail, and &amp;lt;strong&amp;gt;S&amp;lt;\/strong&amp;gt;now Network, a volunteer network of precipitation observers across the country&amp;lt;\/p&amp;gt;\n&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>CoCoRaHS<\/span> observations and Mesowest gages. The Southwest Slope was a bit drier yesterday however, with observations staying mostly under 0.5&rdquo;.<\/p>\n<p>In the Grand Valley, the Pine Gulch burn scar was issued a <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;flash flood&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 flood<\/span> <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>, but it was cancelled by 6 PM with no flooding reported. This area saw up to 0.86&rdquo; according to a <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;CoCoRaHS&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;&amp;lt;strong&amp;gt;Co&amp;lt;\/strong&amp;gt;mmunity &amp;lt;strong&amp;gt;Co&amp;lt;\/strong&amp;gt;llaborative &amp;lt;strong&amp;gt;Ra&amp;lt;\/strong&amp;gt;in, &amp;lt;strong&amp;gt;H&amp;lt;\/strong&amp;gt;ail, and &amp;lt;strong&amp;gt;S&amp;lt;\/strong&amp;gt;now Network, a volunteer network of precipitation observers across the country&amp;lt;\/p&amp;gt;\n&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>CoCoRaHS<\/span> observer, although other observations generally stayed between 0&rdquo;-0.64&rdquo;. To the south, a debris flow consisting of minor mudslides over Highway 145 in Telluride was reported yesterday as well, but the highway was quickly cleared within a few hours. Rainfall near Telluride was 0.23&rdquo; or less.<\/p>\n<p>The Central Mountains also saw continued rainfall from the day before, with totals for the area reaching up to 1.16&rdquo; in Silverthorne, but generally staying between 0&rdquo;-1&rdquo;.<\/p>\n<p>The northern Front Range and Urban Corridor stayed relatively dry, with <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> -0.05&rdquo; observations. Thankfully, there was no flooding yesterday on the Cameron Peak burn scar, although the Poudre River was observed to be dark brown from mud and sediment runoff from the rain in the area on Monday.<\/p>\n<p>If you observe flooding in your area, remember to use the &ldquo;Report a Flood&rdquo; page to make any flood reports when you can safely do so. For precipitation estimates in our area, check out the map below.<\/p>\n<h4 class=\"collapseomatic \" id=\"id69f9fcb644fe8\" tabindex=\"0\" title=\"Click Here For Map Overview\">Click Here For Map Overview<\/h4><div id=\"target-id69f9fcb644fe8\" 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.<br><\/div>\n<p><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/08\/qpe_snip_081722.png\"><img loading=\"lazy\" class=\"alignnone  wp-image-19199\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/08\/qpe_snip_081722-300x204.png\" alt=\"\" width=\"884\" height=\"601\" srcset=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/08\/qpe_snip_081722-300x204.png 300w, https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/08\/qpe_snip_081722-768x521.png 768w, https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/08\/qpe_snip_081722.png 902w\" sizes=\"(max-width: 884px) 100vw, 884px\"\/><\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Issue Date: Wednesday, August 17th, 2022 Issue Time: 10:25 MDT Summary: It was another active day for heavy rain across Colorado yesterday, and the Denver Metro Area\/Urban Corridor saw an early start! By 9 AM, Broomfield had already received 3.5&rdquo; of rainfall from a nearly stationary thunderstorm that lasted several hours. In total, 3.70&rdquo; was [&hellip;]<\/p>","protected":false},"author":17,"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\/19179"}],"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\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=19179"}],"version-history":[{"count":6,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/19179\/revisions"}],"predecessor-version":[{"id":19200,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/19179\/revisions\/19200"}],"wp:attachment":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=19179"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=19179"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=19179"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}