{"id":16475,"date":"2022-05-01T09:45:25","date_gmt":"2022-05-01T15:45:25","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=16475"},"modified":"2022-05-02T10:34:29","modified_gmt":"2022-05-02T16:34:29","slug":"ftb-05-01-2022-strong-disturbance-to-produce-isolated-severe-storms-along-with-widespread-rain-and-snow%ef%bf%bc","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=16475","title":{"rendered":"FTB 05-01-2022: Strong Disturbance To Produce Isolated Severe Storms Along With Widespread Rain and Snow"},"content":{"rendered":"<p>Issue Date: Sunday, May 1<sup>st<\/sup>, 2022<br>Issue Time: 9:40AM MDT<\/p>\n<p><em>&mdash; Flooding is NOT expected today<\/em><\/p>\n<p>In true Colorado fashion, Mother Nature decided to kick off the 2022 Flood Threat Bulletin season with some fireworks. As shown in the water vapor image below, a small but potent upper-level disturbance is currently positioned over the Great Basin. It will rapidly move eastward into Colorado today, inducing <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;widespread&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;greater than 60% areal coverage&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>widespread<\/span> precipitation, with the best coverage being over the northern half of the state.<\/p>\n<p>The main limiting factor to heavy rainfall potential will be moisture. Morning <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;precipitable water&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;The total atmospheric water vapor contained in a vertical column of the atmosphere. It is typically measured in inches, and anomalously (deviation from normal) high values of precipitable water generally correlate to heavy rainfall potential.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>Precipitable Water<\/span> (<span class=\"glossaryLink\"  aria-describedby=\"tt\"  data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;PW&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;(Stands for: Precipitable Water) The total atmospheric water vapor contained in a vertical column of the atmosphere. It is typically measured in inches, and anomalously (deviation from normal) high values of precipitable water generally correlate to heavy rainfall potential.&lt;\/div&gt;\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>PW<\/span>) at Denver and Grand Junction measured a meager 0.28 and 0.29 inches, respectively. As the disturbance approaches Colorado, it will stage an impressive return of moisture via strong southerly flow. The best chance for <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> heavy rainfall will be over southeast Colorado, where by late afternoon <span class=\"glossaryLink\"  aria-describedby=\"tt\"  data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;PW&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;(Stands for: Precipitable Water) The total atmospheric water vapor contained in a vertical column of the atmosphere. It is typically measured in inches, and anomalously (deviation from normal) high values of precipitable water generally correlate to heavy rainfall potential.&lt;\/div&gt;\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>PW<\/span> will exceed 0.50 inches and perhaps approach 0.75 inches. However, the more notable threat will be severe weather in the form of large hail and tornadoes. Short-term heavy rainfall will be possible with these storms, but with rapid northeast steering flow of 35mph or greater, flooding is NOT expected.<\/p>\n<p><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/05\/wv_markup_20220501.png\"><img loading=\"lazy\" class=\"size-full wp-image-16479 aligncenter\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/05\/wv_markup_20220501.png\" alt=\"\" width=\"642\" height=\"533\" srcset=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/05\/wv_markup_20220501.png 642w, https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/05\/wv_markup_20220501-300x249.png 300w\" sizes=\"(max-width: 642px) 100vw, 642px\"\/><\/a><\/p>\n<p>Moving on to some great news, steady rainfall and higher elevation snow will increase in coverage during the late evening and overnight hours over most of Colorado&rsquo;s higher terrain as well as northeast Colorado. <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> elevated thunderstorms (yes, including thundersnow!) will also be possible especially over the Northeast Plains. By tomorrow morning <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;widespread&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;greater than 60% areal coverage&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>widespread<\/span> rainfall exceeding 1 inch is likely over the Northeast Plains, which will be most welcome for the region&rsquo;s farmers after the dry, windy and dusty April over that part of the state.<\/p>\n<p>Lastly, a <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;Red Flag&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;weather conditions are extremely conducive to burning and wildfires&amp;lt;\/p&amp;gt;\n&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>Red Flag<\/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> is in place over parts of southern Colorado where warm temperatures, winds and low humidity will combine to elevate the threat of wildfire initiation and spread.<\/p>\n<h3><strong>Today&rsquo;s Flood Threat Map<\/strong><\/h3>\n<p>For more information on today&rsquo;s flood threat, see the map below. If there is a threat, hover over the threat areas for more details, and click on burn areas to learn more about them. For Zone-Specific forecasts, scroll below the threat map.<a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/05\/FTB_NoThreat_2022_light.png\"><img loading=\"lazy\" class=\"wp-image-16515 size-full aligncenter\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/05\/FTB_NoThreat_2022_light.png\" alt=\"\" width=\"768\" height=\"573\" srcset=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/05\/FTB_NoThreat_2022_light.png 768w, https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/05\/FTB_NoThreat_2022_light-300x224.png 300w\" sizes=\"(max-width: 768px) 100vw, 768px\"\/><\/a><\/p>\n<h3><strong>Zone-Specific Forecasts:<\/strong><\/h3>\n<h4><strong>Southeast Plains:<\/strong><\/h4>\n<p>Becoming partly cloudy, warm and windy with <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> to <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> thunderstorms developing mainly over far eastern areas along the OK and KS border. Max 1-hour rainfall up to 1.4 inches is possible. However, flooding is NOT expected today.<\/p>\n<p>Severe storms will also be possible with large hail and tornadoes being the main threats, along with damaging straight-line winds.<\/p>\n<p>Primetime: 4PM through 8PM, then light\/moderate rainfall during the overnight hours<\/p>\n<p><strong>Northeast Plains, Front Range, Urban Corridor, Palmer Ridge:<\/strong><\/p>\n<p>Becoming partly to mostly cloudy with seasonably warm temperatures. Rainfall and high elevation snow will develop during the late evening and overnight hours. Max 1-hour rain rainfall up to 0.8 inches mainly over far eastern areas towards the KS border. Max 24-hour rainfall up to 1.9 inches is expected along and north of the South Platte River. The snow level will drop to 7,500 feet by tomorrow morning. Flooding is NOT expected today.<\/p>\n<p>Primetime: 8PM through the overnight hours.<\/p>\n<h4><strong>Northern Mountains, Central Mountains, San Juan Mountains, Grand Valley, Northwest Slope:<\/strong><\/h4>\n<p>Partly to mostly cloudy with seasonably cool temperatures. Rain and snow will develop during the overnight hours, mainly over the higher elevations. Max 1-hour rainfall up to 0.4 inches is possible early in the event. <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;widespread&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;greater than 60% areal coverage&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>Widespread<\/span> precipitation amounts of 0.25 &ndash; 0.5 inches are expected by tomorrow morning. Flooding is NOT expected today.<\/p>\n<p>Primetime: 7PM through the overnight hours<\/p>\n<h4><strong>Southwest Slope, San Luis Valley, Southeast Mountains, Raton Ridge:<\/strong><\/h4>\n<p>Mostly sunny, warm and windy with a <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;Red Flag&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;weather conditions are extremely conducive to burning and wildfires&amp;lt;\/p&amp;gt;\n&amp;lt;!-- \/wp:paragraph --&amp;gt;&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>Red Flag<\/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> in effect for most of the area. <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> to <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> rain and high-elevation snow showers are expected during the overnight hours, but coverage will be limited. Flooding is NOT expected today.<\/p>\n<p>Primetime: 10PM through the overnight hours<\/p>\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Issue Date: Sunday, May 1st, 2022Issue Time: 9:40AM MDT &mdash; Flooding is NOT expected today In true Colorado fashion, Mother Nature decided to kick off the 2022 Flood Threat Bulletin season with some fireworks. As shown in the water vapor image below, a small but potent upper-level disturbance is currently positioned over the Great Basin. [&hellip;]<\/p>","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[6],"tags":[],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/16475"}],"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\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=16475"}],"version-history":[{"count":7,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/16475\/revisions"}],"predecessor-version":[{"id":16516,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/16475\/revisions\/16516"}],"wp:attachment":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=16475"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=16475"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=16475"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}