{"id":1269,"date":"2015-07-15T10:20:55","date_gmt":"2015-07-15T16:20:55","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=1269"},"modified":"2015-07-16T10:18:37","modified_gmt":"2015-07-16T16:18:37","slug":"ftb-07-15-2015-fewer-thunderstorms-today-but-heavy-rain-is-still-a-threat","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=1269","title":{"rendered":"FTB 07-15-2015: Fewer Thunderstorms Today, But Heavy Rain is Still a Threat"},"content":{"rendered":"

Issue Date: 7\/15\/2015
\nIssue Time: 10:10 AM<\/p>\n

A MODERATE FLOOD THREAT IS FORECAST FOR PORTIONS OF THE SOUTHEAST PLAINS AND RATON RIDGE.<\/em><\/p>\n

A LOW FLOOD THREAT IS FORECAST FOR PORTIONS OF THE FRONT RANGE, URBAN CORRIDOR, NORTHEAST PLAINS, SOUTHEAST PLAINS, PALMER RIDGE, RATON RIDGE, SOUTHEAST MOUNTAINS, SAN JUAN MOUNTAINS, SOUTHWEST SLOPE, GRAND VALLEY, CENTRAL MOUNTAINS, NORTHERN MOUNTAINS, AND NORTHWEST SLOPE.<\/em><\/p>\n

The same overall pattern that has governed the Continental US weather over the past week or so continues today, as the upper-level ridge remains anchored over the south-central US and an upper-trough<\/span> sits along the west coast. This will continue the stream of subtropical moisture across Colorado, albeit moisture will be slightly less than yesterday. Embedded in the flow are a couple of weak disturbances that will work across the state, but they will not have the same “punch” as yesterday. This is due to the fact that their time of passage will not coincide quite as well with peak daytime heating, thus a downtick in thunderstorm numbers today.<\/p>\n

\"IPW_07152015\"<\/a><\/p>\n

The best coverage of storms will occur across the High Country where orographic effects once again play a role in storm development, and across the far eastern plains where a surface trough<\/span> and greater surface moisture will be present. Isolated<\/span> thunderstorms will be possible elsewhere. Much like yesterday, all strong storms, regardless of location, will hold the potential to produce brief moderate-to-heavy rain. With that said, storm motions will be quicker than yesterday, helping to limit the flood threat. Burn scars, urban areas, unstable<\/span> soils, and locations that received heavy rainfall yesterday will be the primary concerns for flooding threats today.<\/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_20150715\"<\/a><\/p>\n

<\/h3>\n

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

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

Isolated<\/span>-to-scattered<\/span> thunderstorms expected this afternoon and evening, with stronger storms holding the potential to produce brief heavy rain. Maximum rain rates will be 0.8-1.4 inches\/30-45 minutes.<\/p>\n

Near the CO\/KS border, higher surface dewpoints and organization along a surface trough<\/span> will allow for greater max rainfall rates from strong-to-severe thunderstorms<\/span> of 2.0-2.5 inches\/hour. The main threat from any severe thunderstorms<\/span> will be heavy rain, lightning, and strong winds. Some small hail will likely be present, as well.<\/p>\n

Timing: 1 PM – 11 PM<\/p>\n

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

Scattered<\/span> showers and thunderstorms are expected today and tonight, although coverage will be slightly less than yesterday. With moisture down a bit from yesterday, and storm motions expected to be quicker, the flood threat has been reduced, but not eliminated. Unstable<\/span> soils from previous days’ rainfall is still a concern, as well as burn scars and urban areas. Rain rates will generally be in the 0.4-0.8 inches\/hour range, but stronger storms could produce rainfall at 0.8-1.2 inches\/hour.<\/p>\n

Timing: 11 AM – 10 PM, with one or two isolated<\/span> showers continuing into the early morning hours.<\/p>","protected":false},"excerpt":{"rendered":"

Issue Date: 7\/15\/2015 Issue Time: 10:10 AM A MODERATE FLOOD THREAT IS FORECAST FOR PORTIONS OF THE SOUTHEAST PLAINS AND RATON RIDGE. A LOW FLOOD THREAT IS FORECAST FOR PORTIONS OF THE FRONT RANGE, URBAN CORRIDOR, NORTHEAST PLAINS, SOUTHEAST PLAINS, PALMER RIDGE, RATON RIDGE, SOUTHEAST MOUNTAINS, SAN JUAN MOUNTAINS, SOUTHWEST SLOPE, GRAND VALLEY, CENTRAL MOUNTAINS, […]<\/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\/1269"}],"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=1269"}],"version-history":[{"count":2,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/1269\/revisions"}],"predecessor-version":[{"id":1282,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/1269\/revisions\/1282"}],"wp:attachment":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1269"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1269"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1269"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}