{"id":1734,"date":"2015-08-22T09:28:47","date_gmt":"2015-08-22T15:28:47","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=1734"},"modified":"2015-08-23T09:58:25","modified_gmt":"2015-08-23T15:58:25","slug":"ftb-08-22-2015-dry-air-to-prevail-yet-again","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=1734","title":{"rendered":"FTB 08-22-2015: Dry Air To Prevail Yet Again"},"content":{"rendered":"<p>Issue Date: 8\/22\/2015<br>\nIssue Time: 9:20AM<\/p>\n<p><em>&mdash; NO Flood Threat Today<br>\n&mdash; <span style=\"color: #ff0000;\">Elevated Fire Threat West of the Northwest Slope and Northern Mountains<\/span><\/em><\/p>\n<p>Dry air continues its firm grip over most of Colorado. As the water vapor image shows, below, this will continue for today. A developing surface low pressure system, located over western South Dakota will move quickly northeast away from Colorado. The net effect for us will be subsidence and the <span class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;advection&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;The process of transport of an atmospheric property, typically temperature or moisture in our FTB discussions, by the wind. &amp;quot;Strong&rdquo; or &amp;quot;weak&rdquo; advection refers to the rate of change of the advected property&amp;#039;s value at a given point.&lt;\/div&gt;\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'>advection<\/span> of more dry air from the northwest. A cool front is expected to pass across the Northeast and Southeast Plains this afternoon. This could lead to stray showers and a weak thunderstorm, but with very little rainfall. Otherwise, a bit of residual moisture and diurnal upslope circulation will likely result in some showers and weak thunderstorms over the San Juans. Again, however, rainfall amounts will not be enough to raise flooding concerns. Looking out to Sunday, another push of fall-like air will approach the state from the northeast. This will lower temperatures by 5-10 degrees. Overall, a nice late summer weekend is in store for Colorado.<\/p>\n<p><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2015\/08\/watervapor_20150822.png\"><img loading=\"lazy\" class=\"aligncenter  wp-image-1737\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2015\/08\/watervapor_20150822.png\" alt=\"watervapor_20150822\" width=\"825\" height=\"464\"\/><\/a><\/p>\n<p>An elevated fire threat continues today for the Northern Mountains and Northwest Slope where afternoon relative humidity values will drop into the 10-15% range. Gusty winds will also promote a fire danger. Meanwhile, we expect some of the hazy conditions to ease up a bit this afternoon as our airflow comes in from a more westerly, as opposed to northwesterly component. However, at least some haziness will persist through the day.<\/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 (hover over threat areas for more details). For Zone-Specific forecasts, jump below the map.<br><a href=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2015\/08\/nofloodthreat_snapshot1.png\"><img loading=\"lazy\" class=\"aligncenter  wp-image-1747\" src=\"https:\/\/archive-coftb.dewberryanalytics.com\/wp-content\/uploads\/2015\/08\/nofloodthreat_snapshot1.png\" alt=\"nofloodthreat_snapshot\" width=\"838\" height=\"527\"\/><\/a><\/p>\n<h3><strong>Zone Specific Forecasts<\/strong><\/h3>\n<p><strong>Front Range, Urban Corridor, Northeast Plains, Southeast Plains, Palmer Ridge, Raton Ridge, Southeast Mountains:<\/strong><\/p>\n<p>Mostly sunny and seasonally warm today with highs in the 60s in the higher terrain to near 100 F in the lower elevations of the Arkansas River valley. A stray thunderstorm cannot be ruled out along the Palmer Ridge and in the Southeast Plains during the late afternoon and early evening. However, rainfall will be limited to 0.3 inches. Flooding is not expected today.<\/p>\n<p><strong>Southwest Slope, San Juans, San Luis Valley, Central Mountains, Northern Mountains, Grand Valley, Northwest Slope, Southwest Slope:<\/strong><\/p>\n<p>Mostly sunny and warm today with highs ranging from the mid 60s in the highest terrain to the mid 90s in the lower valleys. A few showers and weak thunderstorms will be possible over the San Juan Mountains, but rainfall will be less than 0.2 inches. Over the Northwest Slope and Northern Mountains, relative humidity values are expected to drop into the 10-20% range today. This, combined with gusty winds will cause an elevated wildfire threat. Please check your local National Weather Forecasts for more detailed fire risk information.<\/p>","protected":false},"excerpt":{"rendered":"<p>Issue Date: 8\/22\/2015 Issue Time: 9:20AM &mdash; NO Flood Threat Today &mdash; Elevated Fire Threat West of the Northwest Slope and Northern Mountains Dry air continues its firm grip over most of Colorado. As the water vapor image shows, below, this will continue for today. A developing surface low pressure system, located over western South [&hellip;]<\/p>","protected":false},"author":4,"featured_media":0,"comment_status":"open","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\/1734"}],"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=1734"}],"version-history":[{"count":4,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/1734\/revisions"}],"predecessor-version":[{"id":1748,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/1734\/revisions\/1748"}],"wp:attachment":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1734"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1734"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1734"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}