{"id":13646,"date":"2021-05-08T08:31:06","date_gmt":"2021-05-08T14:31:06","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=13646"},"modified":"2021-05-08T08:31:38","modified_gmt":"2021-05-08T14:31:38","slug":"ftb-05-08-2021-changes-underway-but-no-flood-threat-a-few-severe-storms-possible","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=13646","title":{"rendered":"FTB 05-08-2021: Changes Underway, But No Flood Threat; A Few Severe Storms Possible"},"content":{"rendered":"

Issue Date: Saturday, May 8th, 2021
\nIssue Time: 8:30AM MDT<\/p>\n

— Flooding is NOT<\/strong> expected today<\/em><\/p>\n

Significant changes have occurred in the atmosphere above Colorado over the past 24 hours. A transient ridge of high-pressure, responsible for warm temperatures on Friday, has been replaced by a trough<\/span> of low pressure. As shown in the satellite image below, the trough<\/span> axis is currently positioned just west of Colorado but will move across the state quickly today. Lee-side (i.e. to the east of the Rockies) surface pressure falls of up to 5 millibars over the past 6 hours were noted this morning, signifying the initial development of a low pressure circulation that will actually persist over the next 72-96 hours. However, despite the rather menacing dynamics aloft, heavy rainfall chances will be significantly constrained today by two factors. First, PW<\/span> remains at or below seasonal normal today, with 0.48 inches measured at Grand Junction and a meager 0.26 inches in Denver. Higher PW<\/span>, up to 0.75 inches was noted along the Nebraska and Kansas borders, but this is still below general thresholds that would signify a flood threat. Second, steering winds, measured at the 500mb level, will be strong (35mph+) and westerly today. The westerly part is important because there will be a tendency to import much drier air, currently over Great Basin eastward.<\/p>\n

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

Translating all the factors above into an actual sensible forecast, we expect generally cooler temperatures and scattered<\/span> showers and a few thunderstorms mainly across central and eastern parts of the state today. Highest rainfall intensity, up to 1.0 inch\/hour locally, will be along the Kansas\/Nebraska borders, where there is also a chance of severe weather including strong winds, large hail and possibly a few landspout tornadoes given the presence of low-level wind shear<\/span>. However, flooding is NOT expected today.<\/p>\n

West of the Continental Divide<\/span>, gusty dry winds will create conditions favorable for wildfires, so Red Flag<\/span> Warnings have been posted for parts of the area. Stay tuned to local NWS<\/span> forecasts for more information.<\/p>\n

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

For more information on today’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

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

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

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

Partly to mostly cloudy and cooler with scattered<\/span> showers and thunderstorms starting in the early afternoon and persisting in the late evening hours. Max 1-hour rainfall up to 0.5 inches for western areas and 1 inch for eastern areas. Maximum 24-hour rainfall up to 1.7 inches locally will be possible along the Kansas border. Severe weather, including strong winds, large hail and an isolated<\/span> tornado will be possible mainly along the Kansas border today. Flooding is NOT expected today.<\/p>\n

Primetime: 12PM through the overnight hours<\/p>\n

Northern Mountains, Front Range, Urban Corridor, Central Mountains:<\/strong><\/h4>\n

Partly cloudy and cooler with isolated<\/span> to scattered<\/span> showers and weak thunderstorms this afternoon and into evening. Max 1-hour rainfall up to 0.5 inches. Gusty winds up to 50 mph are possible with the stronger storms. Flooding is NOT expected today.<\/p>\n

Primetime: 12PM through the overnight hours<\/p>\n

Grand Valley, San Juan Mountains, Southwest Slope & San Luis Valley, Northwest Slope, Southeast Mountains & Raton Ridge:<\/strong><\/h4>\n

Mostly sunny to partly cloudy and windy this afternoon. An isolated<\/span> rain shower cannot be ruled out for northern areas. Max 1-hour rainfall up to 0.1 inches. Flooding is NOT expected today. Red Flag<\/span> Warnings are in effect for parts of the area. Stay tuned to local NWS<\/span> offices for more information.<\/p>","protected":false},"excerpt":{"rendered":"

Issue Date: Saturday, May 8th, 2021 Issue Time: 8:30AM MDT — Flooding is NOT expected today Significant changes have occurred in the atmosphere above Colorado over the past 24 hours. A transient ridge of high-pressure, responsible for warm temperatures on Friday, has been replaced by a trough<\/span> of low pressure. As shown in the satellite […]<\/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\/13646"}],"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=13646"}],"version-history":[{"count":2,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/13646\/revisions"}],"predecessor-version":[{"id":13649,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/13646\/revisions\/13649"}],"wp:attachment":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=13646"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=13646"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=13646"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}