{"id":15013,"date":"2021-07-18T08:58:27","date_gmt":"2021-07-18T14:58:27","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=15013"},"modified":"2021-07-19T08:18:33","modified_gmt":"2021-07-19T14:18:33","slug":"spm-07-18-2021","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=15013","title":{"rendered":"SPM 07-18-2021: Palmer Ridge and Eastern Plains Thunderstorms"},"content":{"rendered":"

Issue Date: Sunday, July 18, 2021
\nIssue Time: 10:00 AM MDT<\/p>\n

Summary:<\/h3>\n

Saturday was another very typical summer day in Colorado. In the early afternoon, isolated<\/span> to scattered<\/span> storms began to develop over the high elevations, helped by available monsoonal moisture. Storms remained scattered<\/span> but widespread<\/span> in the Western Slopes, Grand Valley, Central and San Juan Mountains, and those areas lucky enough to be under a cell picked up moderate rainfall. <\/p>\n

Storm movement was eastward, eventually breaking over the Front Range, Urban Corridor, and then onto the Palmer Ridge and Eastern Plains where the heaviest rainfall occurred. <\/p>\n

Storms along the I-76 corridor in the Northeast Plains had some of the highest rainfall rates seen yesterday. 1.78 inches was reported by a CoCoRaHS<\/span> observer in Fort Morgan, and several surrounding observers reported between 0.72-1.55 inches. A gauge-owned by Northern Water in Fort Morgan reported a total of 1.31 inches, with 1.27 of that falling in just 45 minutes, as seen in the time series plot below. The 60-minute, 10-year Average Recurrence Interval from NOAA Atlas 14 in Fort Morgan is 1.56 inches – so portions of Fort Morgan received well above a 10-year rainfall (or 10% chance of occurring in any given year). <\/p>\n

\"\"<\/a>
\nNearby, Adena in eastern Adams County saw 1.49 inches, as reported by a CoCoRaHS<\/span> observer. <\/p>\n

Further south on the Palmer Ridge, storms produced street flooding in Colorado Springs<\/a>. Approximately 0.20-0.30 fell over the eastern urban area of Colorado Springs. Heavy rain and severe thunderstorms<\/span> were also present on the Southeast Plains, observers reported 1.24 inches in Cedarwood in southern Pueblo County. Reports of hail up to 1-inch were also made following a severe-warned thunderstorm in Pritchett in Baca County. <\/p>\n

Flooding was not reported on any burn scars yesterday. For rainfall estimates in your area, check out the State Precipitation Map below. <\/p>\n

Click Here For Map Overview<\/h4>
The 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.\n<\/div>\n\"\"<\/a>","protected":false},"excerpt":{"rendered":"

Issue Date: Sunday, July 18, 2021 Issue Time: 10:00 AM MDT Summary: Saturday was another very typical summer day in Colorado. In the early afternoon, isolated<\/span> to scattered<\/span> storms began to develop over the high elevations, helped by available monsoonal moisture. Storms remained scattered<\/span> but widespread<\/span> in the Western Slopes, Grand Valley, Central and San […]<\/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\/15013"}],"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=15013"}],"version-history":[{"count":4,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/15013\/revisions"}],"predecessor-version":[{"id":15035,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/15013\/revisions\/15035"}],"wp:attachment":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=15013"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=15013"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=15013"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}