{"id":2308,"date":"2016-05-09T12:42:31","date_gmt":"2016-05-09T18:42:31","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=2308"},"modified":"2016-05-09T12:42:31","modified_gmt":"2016-05-09T18:42:31","slug":"fto-05-09-2016-three-events-during-this-period-one-elevated-flood-threat","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=2308","title":{"rendered":"FTO 05-09-2016: Three Events During this Period, One Elevated Flood Threat"},"content":{"rendered":"<p>Issue Date: 5\/9\/2016<br>\nIssue Time: 12:40 PM<\/p>\n<p><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2016\/05\/Threat_Timeline_20160509.png\"><img loading=\"lazy\" class=\"  wp-image-2309 aligncenter\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2016\/05\/Threat_Timeline_20160509.png\" alt=\"Threat_Timeline_20160509\" width=\"898\" height=\"122\"\/><\/a><\/p>\n<p>An active period is ahead as the atmosphere breaks down out of its pseudo-blocking pattern and upper-level features become a bit more transient across the region. Taking a look at the water vapor image below, we can break down the first two events on the horizon. Event #1 is on the doorstep as an upper-level disturbance\/<span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;trough&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;An elongated area of relatively low atmospheric pressure; the opposite of a ridge.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>trough<\/span> swings across the northern states and drops moisture and a cool front into Colorado. Ridging will then build across the region on Thursday and Friday, bringing warmer temperatures and mostly dry conditions. The exception will be over\/near the higher terrain, where <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> thunderstorms will remain possible owing to orographic effects and residual moisture.<\/p>\n<p><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2016\/05\/WV_20160509.png\"><img loading=\"lazy\" class=\"  wp-image-2310 aligncenter\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2016\/05\/WV_20160509.png\" alt=\"WV_20160509\" width=\"532\" height=\"354\"\/><\/a><\/p>\n<p>Event #2 will begin on Saturday as the ridge breaks down ahead of the next upper-level low. Cloud cover will increase on Saturday, 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> showers and thunderstorms possible across the state. The better rain chances arrive on Sunday\/Monday in association with the cool front and easterly, upslope flow behind the front. Ridging will again build in after Event #2, resulting in much the same conditions as the previously mentioned ridging.<\/p>\n<p>Models really diverge after this weekend, but it appears that a third event will take place, beginning on Friday, May 20th. At this time, it looks like another upper-level low will come onshore California and force southwesterly flow over Colorado late next week. In the more transient nature of the upper-level flow, this event looks to be fairly short duration (2-3 days) as the low moves off to the east\/northeast in short order.<\/p>\n<h3><strong>Event #1: Tuesday (05-10-2016) and Wednesday (05-11-2016)<\/strong><\/h3>\n<p><em><span style=\"color: #ff6600;\">Elevated Flood Threat<\/span><\/em><\/p>\n<p>An upper-level disturbance\/<span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;trough&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;An elongated area of relatively low atmospheric pressure; the opposite of a ridge.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>trough<\/span> will swing across the northern states, dropping moisture and a cool front into 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> showers and thunderstorms are expected across all regions, with the bulk of the best precipitation occurring along and south of I-70. A couple of storms across the lower elevations may become severe, but instability will be a limiting factor. Shallow, upslope flow will materialize briefly on Wednesday afternoon, potentially focusing heavier rain along the foothills, Urban Corridor, and western extents of the Southeast Plains.<\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/a.tiles.mapbox.com\/v4\/sgeiger.038h574i\/attribution,zoompan,zoomwheel,geocoder,share.html?access_token=pk.eyJ1Ijoic2dlaWdlciIsImEiOiJmNjc5a3RBIn0.LbLupVkJsS5dbo9fsgrTDg\" width=\"100%\" height=\"500px\" frameborder=\"0\"><\/iframe><\/p>\n<p><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2015\/05\/Legend.png\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-230\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2015\/05\/Legend.png\" alt=\"Legend\" width=\"94\" height=\"158\"\/><\/a><\/p>\n<h3><strong>Event #2: Saturday (05-14-2016) through Tuesday Morning (05-17-2016)<\/strong><\/h3>\n<p><span style=\"color: #0000ff;\"><em>No Apparent Flood Threat<\/em><\/span><\/p>\n<p>Cloud cover will increase on Saturday as large-scale lift overspreads the region ahead of the next upper-level low. <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> showers and thunderstorms will be possible across the state. The better rain chances arrive on Sunday\/Monday in association with the cool front\/mid-level disturbance.<\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/a.tiles.mapbox.com\/v4\/sgeiger.038h8ni5\/attribution,zoompan,zoomwheel,geocoder,share.html?access_token=pk.eyJ1Ijoic2dlaWdlciIsImEiOiJmNjc5a3RBIn0.LbLupVkJsS5dbo9fsgrTDg\" width=\"100%\" height=\"500px\" frameborder=\"0\"><\/iframe><\/p>\n<p><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2015\/05\/Legend.png\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-230\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2015\/05\/Legend.png\" alt=\"Legend\" width=\"94\" height=\"158\"\/><\/a><\/p>\n<h3><strong>Event #3: Friday (05-20-2016) through Sunday (05-22-2016)<\/strong><\/h3>\n<p><span style=\"color: #0000ff;\"><em>No Apparent Flood Threat<\/em><\/span><\/p>\n<p>Model solutions diverge after this weekend\/early next week, but looking at water vapor imagery, there is a third disturbance waiting in the wings over the Bering Sea. The best estimate of its effects arriving in the region are late next week, approximately Friday, May 20th. That is when moist, southwesterly flow will begin to overspread Colorado, once again. At this time, this event looks to be relatively short duration (2-3 days). We will continue to monitor this disturbance over the coming days. Stay tuned.<\/p>","protected":false},"excerpt":{"rendered":"<p>Issue Date: 5\/9\/2016 Issue Time: 12:40 PM An active period is ahead as the atmosphere breaks down out of its pseudo-blocking pattern and upper-level features become a bit more transient across the region. Taking a look at the water vapor image below, we can break down the first two events on the horizon. Event #1 [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[3],"tags":[],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/2308"}],"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=2308"}],"version-history":[{"count":1,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/2308\/revisions"}],"predecessor-version":[{"id":2311,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/2308\/revisions\/2311"}],"wp:attachment":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2308"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2308"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2308"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}