{"id":13008,"date":"2020-09-02T09:39:08","date_gmt":"2020-09-02T15:39:08","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=13008"},"modified":"2020-09-03T07:13:46","modified_gmt":"2020-09-03T13:13:46","slug":"spm-09-02-2020-mostly-dry-and-mild","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=13008","title":{"rendered":"SPM 09-02-2020: Mostly Dry and Mild"},"content":{"rendered":"<p>Issue Date: Wednesday, September 2nd, 2020<br>\nIssue Time: 09:40AM MDT<\/p>\n<h3>Summary:<\/h3>\n<p>Yesterday remained dry for most locations across Colorado, with only a couple morning showers and weak afternoon convective cells over the southern mountains. The morning showers produced up to 0.16 inches of rain near the Great Sand Dunes National Park according to rain gauges. The weak afternoon <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;convection&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;Refers to vertical atmospheric motion driven by buoyancy, i.e., warm air is less dense than cool air, and therefore rises. One of the primary drivers of thunderstorm development, especially during monsoon season.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>convection<\/span> fired over remote western Las Animas County, along the border between the Southeast Mountains and Raton Ridge, but <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> only indicates up to 0.25 inches of rain fell. Stronger <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;convection&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;Refers to vertical atmospheric motion driven by buoyancy, i.e., warm air is less dense than cool air, and therefore rises. One of the primary drivers of thunderstorm development, especially during monsoon season.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>convection<\/span> remained south of the Colorado border in New Mexico. No flooding was reported in Colorado yesterday.<\/p>\n<p>Temperatures across the state yesterday were well below climatological average. Denver only got up to 80F (4F below normal), and Grand Junction only got up to 78F (8F below normal). Leadville, at 10,152 ft above sea level, barely got out of the 50Fs for a high. These cooler temperatures are a welcome relief to the record August heat we&rsquo;ve been experiencing.<\/p>\n<p>Taking a look back at the full month of August, most of Colorado experienced below normal to record driest precipitation (left panel on image below). The western slope experienced the driest conditions with most of the area in record driest territory. <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> locations along the plains of eastern Colorado were actually able to get above normal precipitation for the month. This is due to some of the strong thunderstorms that dropped heavy rain over the plains during the first week and the last few days of the month, which was able to tap into more moisture from the east. However, with the record heat of August 2020 (right panel on image below), severe drought conditions were able to expand drastically across the state, as pointed out in the FTO last Thursday. This also made the 2020 wildfire season one of the more active in recent years, with the largest Colorado wildfire now in the record books (Pine Gulch Fire). Note that increased moisture along the eastern Colorado border likely allowed these locations to remain near normal in terms of temperature. The absence of a strong <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;monsoon&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 seasonal wind that brings moisture and rain to the region into which it blows; there is also a dry phase to monsoons, but popular usage refers only to the wet phase; these winds occur in many places around the world, and where they occur they are responsible for a majority of that location&rsquo;s annual precipitation&amp;lt;\/p&amp;gt;\n&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>monsoon<\/span> kept moisture low and temperatures high in western Colorado. Grand Junction only received 0.07 inches of rain over two days at the end of August, which is 7% of their normal 0.95 inch monthly total.<\/p>\n<p><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2020\/09\/SPM_20200902_graphic.png\"><img loading=\"lazy\" class=\"aligncenter wp-image-13009\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2020\/09\/SPM_20200902_graphic.png\" alt=\"\" width=\"880\" height=\"322\" srcset=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2020\/09\/SPM_20200902_graphic.png 1850w, https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2020\/09\/SPM_20200902_graphic-300x110.png 300w, https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2020\/09\/SPM_20200902_graphic-768x281.png 768w, https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2020\/09\/SPM_20200902_graphic-1024x375.png 1024w\" sizes=\"(max-width: 880px) 100vw, 880px\"\/><\/a><\/p>\n<p><strong>Colorado large wildfire updates (as of 9:00AM on InciWeb):<\/strong><br>\nPine Gulch &ndash; north of Grand Junction: 139,007 acres; 81% contained<br>\nGrizzly Creek &ndash; Glenwood Canyon: 32,464 acres; 75% contained<br>\nCameron Peak &ndash; Medicine Bow Mountains: 23,022 acres; 5% contained<br>\nWilliams Fork &ndash; Arapaho National Forecast: 12,097 acres; 10% contained<\/p>\n<p>For rainfall estimates in your area over the last 24 to 72 hours, check out our State Precipitation Map below.<\/p>\n<h4 class=\"collapseomatic \" id=\"id6a1cf6346e880\" tabindex=\"0\" title=\"Click Here For Map Overview\">Click Here For Map Overview<\/h4><div id=\"target-id6a1cf6346e880\" 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 24-hour, 48-hour and 72-hour total precipitation contain bias corrections that are not disaggregated into the hourly estimates, so there will likely be some differences. 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\/2020\/09\/SPM_20200902_snap.png\"><img loading=\"lazy\" class=\"aligncenter wp-image-13012\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2020\/09\/SPM_20200902_snap.png\" alt=\"\" width=\"880\" height=\"616\" srcset=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2020\/09\/SPM_20200902_snap.png 880w, https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2020\/09\/SPM_20200902_snap-300x210.png 300w, https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2020\/09\/SPM_20200902_snap-768x538.png 768w\" sizes=\"(max-width: 880px) 100vw, 880px\"\/><\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Issue Date: Wednesday, September 2nd, 2020 Issue Time: 09:40AM MDT Summary: Yesterday remained dry for most locations across Colorado, with only a couple morning showers and weak afternoon convective cells over the southern mountains. The morning showers produced up to 0.16 inches of rain near the Great Sand Dunes National Park according to rain gauges. [&hellip;]<\/p>","protected":false},"author":1,"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\/13008"}],"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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=13008"}],"version-history":[{"count":3,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/13008\/revisions"}],"predecessor-version":[{"id":13013,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/13008\/revisions\/13013"}],"wp:attachment":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=13008"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=13008"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=13008"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}