{"id":594,"date":"2015-05-27T10:41:17","date_gmt":"2015-05-27T16:41:17","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=594"},"modified":"2015-05-28T10:13:10","modified_gmt":"2015-05-28T16:13:10","slug":"ftb-05-27-2015-fewer-showers-and-thunderstorms-overall-severe-storms-possible-near-coks-border","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=594","title":{"rendered":"FTB 05-27-2015: Fewer Showers and Thunderstorms Overall, Severe Storms Possible Near CO\/KS Border"},"content":{"rendered":"

Issue Date: 5\/27\/2015
\nIssue Time: 10:33 AM<\/p>\n

A LOW FLOOD THREAT CONTINUES FOR PORTIONS OF THE CACHE LA POUDRE\/SOUTH PLATTE RIVER, AND PORTIONS OF THE ARKANSAS RIVER.<\/em><\/p>\n

The broad-scale picture that the water vapor imagery (below) shows will help to define the forecast for today. The upper-level low (marked by the red “L”) will continue to dig to the south-southeast, placing Colorado under west-southwest flow for today. The water vapor imagery shows that the best mid-level moisture will remain to the south and north of Colorado, leading to a decrease in precipitable water<\/span> values. Additionally, the westerly flow will mix down to the surface, eroding surface dewpoints and limiting the coverage\/intensity of thunderstorms over most of the state. Expect the number of showers and thunderstorms to be slightly less than yesterday over and near the mountains.<\/p>\n

\"WV_05272015\"<\/a><\/p>\n

The exception to all of this, of course, will be near the CO\/KS border, where dewpoints just east of a developing dryline<\/span> will remain in the upper 40s\/low 50s. Furthermore, the dryline<\/span> will provide support for strong-to-severe thunderstorms<\/span> to develop, and this is where the heaviest rain of the day will be found, along with the possibility for large hail (> 1 inch), damaging wind gusts (> 60 mph), and an isolated<\/span> tornado or two.<\/p>\n

Finally, the last feature in the water vapor imagery to be discussed is a remnant upper-level low (marked by the purple line). This remnant low will transition into a shortwave trough<\/span> and slide into western Colorado overnight tonight. This will likely keep a few showers\/weak thunderstorms going until after midnight over the mountains.<\/p>\n

Today’s Flood Threat Map<\/strong><\/h3>\n

For more information on today’s flood threat, see the map below (hover over threat areas for more details). For Zone-Specific forecasts, jump below the map.
\"FTB_snapshot_20150527\"<\/a><\/p>\n

<\/h3>\n

Zone-Specific Forecasts<\/strong><\/h3>\n

Front Range and Urban Corridor:<\/strong><\/h4>\n

Isolated<\/span>-to-scattered<\/span> showers and thunderstorms expected this afternoon and evening, producing mainly gusty winds and light-to-moderate rain. Rain rates will generally be in the 0.2-0.4 inches\/hour range, but a stronger thunderstorm will hold the potential for 0.5-1.0 inches\/hour. However, drying of the lower levels will discourage those maximum rates from being realized at the surface.<\/p>\n

Timing: Noon – 8 PM<\/p>\n

Palmer Ridge, Southeast Plains and Northeast Plains:<\/strong><\/h4>\n

These are the regions of interest today, mainly east of the 104th meridian, particularly for strong-to-severe thunderstorms<\/span> developing this afternoon and evening. West of the 104th meridian, showers and thunderstorms will be weak and isolated<\/span>; east of the 104th meridian and near the CO\/KS border, the environment will be favorable for the development of a few strong-to-severe thunderstorms<\/span>. Maximum rain rates under these storms will be 1.5-2.5 inches\/hour, but storm motions will limit any flash flooding<\/span> potential.<\/p>\n

Timing: 2 PM – 11 PM<\/p>\n

Southeast Mountains and Raton Ridge:<\/strong><\/h4>\n

Isolated<\/span> showers and thunderstorms are on tap, resulting in rain rates in the 0.2-0.4 inch\/hour range. High temperatures will continue their trend upward towards “normal” for this time of year.<\/p>\n

Timing: 1 PM – 7 PM<\/p>\n

Northern Mountains, Northwest Slope, Central Mountains, San Juan Mountains, Grand Valley, San Luis Valley, and Southwest Slope:<\/strong><\/h4>\n

Scattered<\/span> showers and thunderstorms, slightly fewer than yesterday, are expected across these regions. Rain rates will generally be in the 0.2-0.4 inches\/hour range, but a stronger thunderstorm over the San Juan Mountains will hold the potential to produce 0.3-0.6 inches\/hour.<\/p>\n

Timing: 11 AM – 9 PM, with a few showers and thunderstorms continuing until after midnight.<\/p>","protected":false},"excerpt":{"rendered":"

Issue Date: 5\/27\/2015 Issue Time: 10:33 AM A LOW FLOOD THREAT CONTINUES FOR PORTIONS OF THE CACHE LA POUDRE\/SOUTH PLATTE RIVER, AND PORTIONS OF THE ARKANSAS RIVER. The broad-scale picture that the water vapor imagery (below) shows will help to define the forecast for today. The upper-level low (marked by the red “L”) will continue […]<\/p>","protected":false},"author":1,"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\/594"}],"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=594"}],"version-history":[{"count":3,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/594\/revisions"}],"predecessor-version":[{"id":605,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/594\/revisions\/605"}],"wp:attachment":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=594"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=594"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=594"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}