{"id":12930,"date":"2020-08-27T09:37:02","date_gmt":"2020-08-27T15:37:02","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=12930"},"modified":"2020-08-28T07:24:32","modified_gmt":"2020-08-28T13:24:32","slug":"spm-08-27-2020-beneficial-rainfall-for-the-mountains-palmer-ridge","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=12930","title":{"rendered":"SPM 08-27-2020: Beneficial Rainfall for the Mountains & Palmer Ridge"},"content":{"rendered":"

Issue Date: Thursday, August 27th, 2020
\nIssue Time: 9:35AM MDT<\/p>\n

Summary:<\/h3>\n

Moisture continued to accumulate under the ridge, and a couple days of rainfall helped moisten the boundary layer<\/span>. Both of these factors lead to an increase in storms coverage, intensity, and rainfall totals on Wednesday, which was beneficial for the ongoing fires as storms produce only minimal lightning. The higher moisture allowed storms to fire over the mountains a little earlier than typical, first firing over the Front Range just after 11AM. By about 3PM, coverage of rainfall over the mountains and higher elevations of western Colorado was fairly widespread<\/span> with the convection<\/span> mostly confined to the peaks and ridges. Over western Colorado, the San Juan Mountains received the most wetting rainfall with a large area receiving at least 0.25 inches, and southern La Plata County reporting 0.25 inch hail. SNOTEL sites recorded about 0.60 inches of precipitation, and a CoCoRaHS<\/span> site in western Rio Grande reported the same. Beneficial rainfall also fell over the San Luis Valley in the evening hours, and a CoCoRaHS<\/span> station between Alamosa and Monte Vista reported 0.43 inches. The official report at the KALS airport was 0.08 inches. August precipitation climo is about 1 inch for the interior of the valley.<\/p>\n

Back over the Front Range, a couple observations around 0.95 inches were recorded over the southern Front Range (ALERT, CoCoRaHS<\/span>, MesoWest). Several outflow boundaries<\/span> over the Palmer Ridge help trigger some much needed, widespread<\/span> rainfall for the area yesterday evening. Reminder, Douglas County is having its driest year on record. QPE<\/span> had widespread<\/span> totals between 0.25 and 0.50 inches, and CoCoRaHS<\/span> stations near Limon had between 0.63 and 0.68 inches. Over Denver, totals were generally less than 0.25 inches.<\/p>\n

As far as flooding, a Flash Flood<\/span> Warning<\/span> was issued for the Pine Gulch Fire around 3:30PM, and 0.65 inches of rain fell over about an hour and a half (starting at 3PM). A flash flooding<\/span> report indicated a shallow debris flow at the edge of the burn area with the exact location along Roan Creek Road unknown. Other than that, flooding was not reported yesterday.<\/p>\n

Ongoing large fire update (as of 9:30AM on InciWeb):<\/u><\/strong>
\nPine Gulch – north of Grand Junction: 135,958 acres; 53% contained
\nGrizzly Creek – Glenwood Canyon: 32,302 acres; 61% contained
\nCameron Peak – Medicine Bow Mountains: 21,017 acres; 0% contained
\nWilliams Fork – Arapho National Forecast: 11,992 acres; 5% contained<\/p>\n

To see precipitation estimates over your area the last 24 to 48-hours, scroll down to the State Precipitation Map below.<\/p>\n

Click Here For Map Overview<\/h4>
\nThe map below shows radar-estimated, rainfall gage-adjusted Quantitative Precipitation Estimates (QPE<\/span>) across Colorado. The map is updated daily during the operational season (May 1 – 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 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.
<\/div>\n

\"\"<\/p>","protected":false},"excerpt":{"rendered":"

Issue Date: Thursday, August 27th, 2020 Issue Time: 9:35AM MDT Summary: Moisture continued to accumulate under the ridge, and a couple days of rainfall helped moisten the boundary layer<\/span>. Both of these factors lead to an increase in storms coverage, intensity, and rainfall totals on Wednesday, which was beneficial for the ongoing fires as storms […]<\/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\/12930"}],"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=12930"}],"version-history":[{"count":4,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/12930\/revisions"}],"predecessor-version":[{"id":12949,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/12930\/revisions\/12949"}],"wp:attachment":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=12930"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=12930"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=12930"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}