{"id":5773,"date":"2017-08-03T10:14:56","date_gmt":"2017-08-03T16:14:56","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=5773"},"modified":"2017-08-04T09:49:59","modified_gmt":"2017-08-04T15:49:59","slug":"spm-08-03-2017-late-night-cold-front-delivers-overnight-thunderstorms-for-urban-corridor","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=5773","title":{"rendered":"SPM 08-03-2017: Late Night Cold Front Delivers Overnight Thunderstorms for Urban Corridor"},"content":{"rendered":"<p>Issue Date: Thursday, August 3, 2017<br>\nIssue Time: 10:15AM MDT<\/p>\n<h3>Summary:<\/h3>\n<p>Yesterday&rsquo;s rainfall was associated with a couple different features. Over the mountains, storms were triggered by upslope flow midday. These storms were not accompanied by much moisture, so their rainfall totals were limited and mostly produced gusty winds. Over the eastern plains, thunderstorms began to form along the first boundary around 4PM. With better moisture, instability and <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;shear&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;Local variation of the wind, either in the horizontal or vertical direction.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>shear<\/span>, these storms quickly became severe and had large hail up to 2 inches in diameter. The fast moving pace of the storms to the SSE limited how much rainfall they were actually able to drop. Lastly, overnight the cold front pushed through the state and produced thunderstorms over the Front Range and Urban Corridor.<\/p>\n<p>While the moisture in the atmosphere was limited yesterday, there were a couple <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> warnings and areal advisories for the Southeast Mountains over the Haden Pass and Junkins burn scars. Radar total storm estimates are 1.5 inches. Over the San Jan Mountains, the Lily Pond SNOTEL station near Jasper captured 1.1 inches with a 1-hour total of 0.8 inches. Over the Northeast Plains, total rainfall was estimated at 2.2 inches with 1-hour rain rates up to 1.5 inches. Two Flood Warnings were issued, but there were no flooding reports as of this morning. The only storm reports were strong <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 breaking off tree limbs in Cheyenne County. Lastly, the cold front that passed though overnight had rainfall amounts over 1 inch an hour with 0.5 inches in 10 minutes over a couple of locations in the UDFCD Alert mesonet. Both Lakewood Gulch and Illif Pond hit their upper limits, but no flooding was reported. Cherry Creek continues to run high this morning, but is expected to recover throughout the morning. <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> storms continued this morning over the eastern plains along and near the upper-level disturbance.<\/p>\n<p>Flooding was not reported on Wednesday. For rainfall estimates in your neighborhood, take a peek at the State Precipitation Map below.<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2017\/08\/SPM-8-3-2017-old.png\"><img loading=\"lazy\" class=\"alignnone wp-image-5786\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2017\/08\/SPM-8-3-2017-old.png\" alt=\"\" width=\"880\" height=\"595\"\/><\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Issue Date: Thursday, August 3, 2017 Issue Time: 10:15AM MDT Summary: Yesterday&rsquo;s rainfall was associated with a couple different features. Over the mountains, storms were triggered by upslope flow midday. These storms were not accompanied by much moisture, so their rainfall totals were limited and mostly produced gusty winds. Over the eastern plains, thunderstorms began [&hellip;]<\/p>","protected":false},"author":8,"featured_media":0,"comment_status":"open","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\/5773"}],"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=5773"}],"version-history":[{"count":2,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/5773\/revisions"}],"predecessor-version":[{"id":5787,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/5773\/revisions\/5787"}],"wp:attachment":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5773"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5773"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5773"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}