{"id":19793,"date":"2022-09-16T09:07:13","date_gmt":"2022-09-16T15:07:13","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=19793"},"modified":"2022-09-16T09:08:16","modified_gmt":"2022-09-16T15:08:16","slug":"%ef%bf%bcftb-09-16-2022-scattered-storms-forecast-as-weak-shortwave-moves-through-northern-colorado","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=19793","title":{"rendered":"FTB 09-16-2022: Scattered Storms Forecast As Weak Shortwave Moves Across Northern Colorado"},"content":{"rendered":"<p>Issue Date: Friday, September 16th, 2022<br>\nIssue Time: 9:05AM MDT<\/p>\n<p><em>&mdash; Flooding is&nbsp;<strong>NOT&nbsp;<\/strong>expected today<\/em><br><em>&mdash;&nbsp;<strong>Fire-Burn Forecast Summary: <\/strong>5 burn areas under LOW threat; click <a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/?cat=7\">HERE<\/a> for more info<\/em><\/p>\n<p style=\"font-weight: 400;\">The moisture plume and mid-level lift that was responsible for the rainfall over the last couple of days has moved east of the state, as shown by orange &ldquo;X&rdquo; in the water vapor imagery below. A drier WSW flow filled in behind it, which is reflected in this morning&rsquo;s <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> values. <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 Platteville has dropped to 0.65 inches, and <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 Grand Junction was measured at 0.75 inches. The slightly higher value at Grand Junction is due to a little moisture from a weak incoming <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;shortwave&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;A disturbance in the mid or upper part of the atmosphere which induces upward motion ahead of it.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>shortwave<\/span>, which is marked by the dashed orange line below. This area of lift is already producing some weak thunderstorms over the northwest corner of the state. As this area of mid-level lift moves ENE throughout the day, it is expected to spark additional storms over the northern tier of the state. <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 are anticipated to develop over the northwest and northern high terrain by midday with more <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> storm coverage forecast over the adjacent plains (north of I-70). Fast steering flows associated with a <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;jet streak&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;The region of a jet stream with the strongest winds.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>jet streak<\/span> should keep storms moving pretty darn quick, so only brief rainfall is anticipated from the storm cores. Additionally, drying in the mid-levels should help reduce rainfall rates. Therefore, flooding is NOT expected today.<\/p>\n<p><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/09\/wv_20220916.png\"><img loading=\"lazy\" class=\"aligncenter wp-image-19796\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/09\/wv_20220916-300x207.png\" alt=\"\" width=\"700\" height=\"482\" srcset=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/09\/wv_20220916-300x207.png 300w, https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/09\/wv_20220916-1024x706.png 1024w, https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/09\/wv_20220916-768x529.png 768w, https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/09\/wv_20220916.png 1222w\" sizes=\"(max-width: 700px) 100vw, 700px\"\/><\/a><\/p>\n<h3 style=\"font-weight: 400;\"><strong>Today&rsquo;s Flood Threat Map<\/strong><\/h3>\n<p style=\"font-weight: 400;\">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.<\/p>\n<p><img loading=\"lazy\" class=\"wp-image-13436 aligncenter\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2022\/05\/FTB_NoThreat_2022_light.png\" alt=\"\" width=\"768\" height=\"573\"\/><\/p>\n<h3 style=\"font-weight: 400;\"><strong>Zone-Specific Forecasts:<\/strong><\/h3>\n<h4 style=\"font-weight: 400;\"><strong>Northwest Slope, Grand Valley, Northern Mountains, Central Mountains, Front Range, Urban Corridor &amp; Northeast Plains:<\/strong><\/h4>\n<p style=\"font-weight: 400;\">Additional storms are forecast to develop over the northern high terrain by midday with more <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> storms over the adjacent plains later this afternoon and evening. Max 30-minute rain rates up to 0.75 inches (west\/plains) and 0.5 inches (Urban Corridor) will be possible. With fast storm motion and only moderate rainfall rates, flooding is NOT expected today. In addition to brief rainfall, storms may produce some stronger <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 (~45 mph) and lightning. Additional light showers are possible over the northwest corner overnight.<\/p>\n<p style=\"font-weight: 400;\">Primetime: Ongoing to 9PM<\/p>\n<h4 style=\"font-weight: 400;\"><strong>San Luis Valley, San Juan Mountains, Southwest Slope, Southeast Mountains, Raton Ridge, Palmer Ridge &amp; Southeast Plains:<\/strong><\/h4>\n<p style=\"font-weight: 400;\">Very <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> storms may be possible over the high terrain this afternoon, but the drying trend will help produce more <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;virga&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;Wisps or streaks of precipitation falling out of a cloud that evaporate before reaching the surface. Virga can cause strong, but short-lived, localized winds (dry microburst).&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>virga<\/span> than wetting rainfall. It will likely get a little breezy over the mountains by this afternoon with gusts up to 30 mph possible across the higher peaks. High temperatures should be slightly cooler than average over western CO with temperatures reaching a few degrees above average over the plains and SLV.<\/p>","protected":false},"excerpt":{"rendered":"<p>Issue Date: Friday, September 16th, 2022 Issue Time: 9:05AM MDT &mdash; Flooding is&nbsp;NOT&nbsp;expected today &mdash;&nbsp;Fire-Burn Forecast Summary: 5 burn areas under LOW threat; click HERE for more info The moisture plume and mid-level lift that was responsible for the rainfall over the last couple of days has moved east of the state, as shown by [&hellip;]<\/p>","protected":false},"author":8,"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\/19793"}],"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=19793"}],"version-history":[{"count":4,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/19793\/revisions"}],"predecessor-version":[{"id":19799,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/19793\/revisions\/19799"}],"wp:attachment":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=19793"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=19793"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=19793"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}