{"id":3661,"date":"2016-09-01T11:00:20","date_gmt":"2016-09-01T17:00:20","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=3661"},"modified":"2016-09-02T08:31:58","modified_gmt":"2016-09-02T14:31:58","slug":"ftb-09-01-2016-flood-threat-back-in-the-picture-for-southwest","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=3661","title":{"rendered":"FTB 09-01-2016: Flood Threat Back In The Picture For Southwest"},"content":{"rendered":"

Issue Date: Thursday, September 1, 2016
\nIssue Time: 10:50AM MDT<\/p>\n

— LOW<\/strong> flood threat for San Juans, Central Mountains, Southeast Mountains<\/em><\/p>\n

Major changes are on the way for Colorado’s weather, as can be seen by the water vapor image, below. A large-scale trough<\/span> is entering the western coast of North America. This feature is also being supported by a strong subtropical jet streak<\/span> centered over southern CA, NV and UT. This jet will slowly approach Colorado, and provide favorable outflow<\/span> winds for any thunderstorm activity that develops. An associated surface low pressure system, centered over the northern Great Basin, will begin to transport higher moisture content west of the Divide<\/span>. Thus, thunderstorm activity will increase today along the western slope, most notably over the climatologically favored San Juans. Farther east, a decaying disturbance has allowed a ridge axis to stretch into northeast CO from the northeast. This will provide light subsidence in the mid-levels and be generally unfavorable for storm activity. However, with the high residual moisture content in place (dewpoints > 55F, precipitable water<\/span> 0.8 – 1.2 inches), a rogue storm cannot be ruled out. Today, we have a Low flood threat out for the southern parts of the state where dynamics and moisture will be juxtaposed best for thunderstorm formation.<\/p>\n

\"wv_markup\"<\/a><\/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, scroll below the map.
\"FTB_20160901\"<\/a><\/p>\n

\"Flood<\/div>\n
\n

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

San Juan Mountains, Southwest Slope, Grand Valley:<\/strong><\/p>\n

Mostly sunny this morning then scattered<\/span> thunderstorms and showers developing by early afternoon. Coverage will be initially be highest in the San Juans but will eventually increase farther north. Max 1-hr rain rates up to 1.0 inch possible with max 24-hour rainfall up to 1.6 inches. Moderate rainfall could continue overnight in the San Juans. A Low flood threat has been issued for southern parts of the region mainly for debris slides and mud flows as the region has experienced above normal rainfall the past 7-14 days. The snow level will be about 12,500 ft but could be lower under stronger cells.<\/p>\n

Primetime: 2PM to 2AM<\/p>\n

Southeast Mountains, Raton Ridge, Central Mountains:<\/strong><\/p>\n

Mostly sunny this morning then isolated<\/span> to scattered<\/span> thunderstorms developing by early afternoon. Max 1-hr rain rates up to 1.4 inches could lead to isolated<\/span> flash flooding<\/span>, debris slides and mud flows. The Hayden Pass fire scar is especially vulnerable given some antecedent rainfall yesterday. A Low flood threat has been posted for parts of the region.<\/p>\n

Primetime: 12PM to 8:30PM<\/p>\n

Front Range, Urban Corridor, Palmer Ridge, Northeast Plains, Southeast Plains:<\/strong><\/p>\n

Sunny early then isolated<\/span> to scattered<\/span> thunderstorms developing by early afternoon. Maximum 1-hr rain rates up to 1.3 inches in the far east and up to 0.7 inches closer to the foothills. Flooding is not expected today.<\/p>\n

Primetime: 1PM to 9PM<\/p>\n

San Luis Valley, Northwest Slope, Northern Mountains:<\/strong><\/p>\n

Mostly sunny early then isolated<\/span> to scattered<\/span> showers and a weak thunderstorm developing by early afternoon. Max 1-hr rain rates up to 0.4 inches possible. Light rainfall could continue into the overnight hours in the northern area. Flooding is not expected today.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

Issue Date: Thursday, September 1, 2016 Issue Time: 10:50AM MDT — LOW flood threat for San Juans, Central Mountains, Southeast Mountains Major changes are on the way for Colorado’s weather, as can be seen by the water vapor image, below. A large-scale trough<\/span> is entering the western coast of North America. This feature is also […]<\/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\/3661"}],"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=3661"}],"version-history":[{"count":3,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/3661\/revisions"}],"predecessor-version":[{"id":3684,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=\/wp\/v2\/posts\/3661\/revisions\/3684"}],"wp:attachment":[{"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3661"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3661"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archive-coftb.dewberryanalytics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3661"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}