{"id":6437,"date":"2025-07-25T10:39:50","date_gmt":"2025-07-25T14:39:50","guid":{"rendered":"https:\/\/us.weatheramerica.com\/?p=6437"},"modified":"2025-07-25T10:39:50","modified_gmt":"2025-07-25T14:39:50","slug":"weather-colorado-flash-flood-alert-hits-larimer-county","status":"publish","type":"post","link":"https:\/\/weatheramerica.com\/us\/2025\/07\/25\/weather-colorado-flash-flood-alert-hits-larimer-county\/","title":{"rendered":"Weather Colorado: Flash Flood Alert Hits Larimer County"},"content":{"rendered":"<p><img loading=\"lazy\" loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6438\" src=\"http:\/\/us.weatheramerica.com\/wp-content\/uploads\/sites\/2\/2025\/07\/colorado-rain-2507.jpg\" alt=\"colorado rain-2507\" width=\"2000\" height=\"1500\" srcset=\"https:\/\/weatheramerica.com\/us\/wp-content\/uploads\/sites\/2\/2025\/07\/colorado-rain-2507.jpg 2000w, https:\/\/weatheramerica.com\/us\/wp-content\/uploads\/sites\/2\/2025\/07\/colorado-rain-2507-768x576.jpg 768w, https:\/\/weatheramerica.com\/us\/wp-content\/uploads\/sites\/2\/2025\/07\/colorado-rain-2507-1536x1152.jpg 1536w, https:\/\/weatheramerica.com\/us\/wp-content\/uploads\/sites\/2\/2025\/07\/colorado-rain-2507-860x645.jpg 860w, https:\/\/weatheramerica.com\/us\/wp-content\/uploads\/sites\/2\/2025\/07\/colorado-rain-2507-195x146.jpg 195w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\" \/><\/p>\n<p><strong>Larimer County<\/strong>, in <strong>Northern Colorado<\/strong>, is facing a <strong>serious weather emergency<\/strong> this <strong>Thursday afternoon<\/strong>, as the <strong>National Weather Service in Denver<\/strong> issued a <strong>flash flood warning<\/strong> at <strong>1:23 p.m. MDT<\/strong>. The alert is in effect through <strong>4:30 p.m.<\/strong>, with <strong>intense thunderstorms<\/strong> triggering <strong>heavy downpours<\/strong> across parts of the <strong>Cameron Peak Burn Scar<\/strong>, particularly within the <strong>Miller Fork Basin<\/strong> and <strong>Buckhorn Creek Basin<\/strong>.<\/p>\n<p>&nbsp;<\/p>\n<p>According to the <strong>NWS<\/strong>, this is a <strong>life-threatening situation<\/strong>. <strong>Rapid flooding<\/strong> of <strong>creeks<\/strong>, <strong>streams<\/strong>, and <strong>ditches<\/strong> is already occurring or expected imminently. The steep terrain, weakened by wildfire scars, heightens the <strong>risk of debris flows<\/strong>, which may carry <strong>rocks<\/strong>, <strong>mud<\/strong>, <strong>vegetation<\/strong>, and <strong>unsecured materials<\/strong>. In some zones, <strong>driveways and roads<\/strong> could be completely <strong>washed away<\/strong>.<\/p>\n<p>&nbsp;<\/p>\n<p>By <strong>2:30 p.m.<\/strong>, updated <strong>Doppler radar imagery<\/strong> showed that the region had already received up to <strong>1.5 inches (38 mm)<\/strong> of rain. The <strong>localized, torrential storms<\/strong> are capable of pushing even more water downhill quickly, leading to <strong>sudden surges<\/strong> that pose severe hazards to nearby communities, including <strong>Glen Haven<\/strong>.<\/p>\n<p>&nbsp;<\/p>\n<p>The warning specifically affects areas <strong>in and around<\/strong> the <strong>Cameron Peak burn scar<\/strong>, which remains <strong>highly vulnerable<\/strong> following past wildfires. The <strong>thunderstorm-driven flooding<\/strong> could cause <strong>mudslides<\/strong> and <strong>washed-out routes<\/strong>, especially across unpaved or compromised roads.<\/p>\n<p>&nbsp;<\/p>\n<p>A <strong>flash flood<\/strong> differs from regular flooding in how fast it develops. These <strong>violent surges<\/strong> can form <strong>within minutes<\/strong> of heavy rainfall and may affect locations even if they\u2019re not currently experiencing precipitation.<\/p>\n<p>&nbsp;<\/p>\n<p>It\u2019s important to understand the distinction between a <strong>flash flood watch<\/strong> and a <strong>flash flood warning<\/strong>. A <strong>watch<\/strong> signals that flooding <em>might<\/em> happen \u2014 a <strong>warning<\/strong> means it <em>is happening<\/em> or about to, and you must act <strong>immediately<\/strong>. The <strong>NWS<\/strong> strongly emphasizes moving to <strong>higher ground<\/strong> without delay if you&#8217;re in a flood-prone area.<\/p>\n<p>&nbsp;<\/p>\n<p>In today\u2019s case, conditions are rapidly shifting, and the <strong>terrain shaped by the 2020 Cameron Peak Fire<\/strong> is acting as a dangerous funnel for runoff. <strong>Flash floods<\/strong> in these scars can trigger fast-moving and dense debris flows, especially on or near hillsides, creeks, and small tributaries. Residents near <strong>Buckhorn Creek<\/strong> and <strong>Miller Fork<\/strong> should stay extremely vigilant.<\/p>\n<p>&nbsp;<\/p>\n<p>The situation continues to evolve with the <strong>potential for additional storms<\/strong> this evening, particularly in the <strong>north-central Colorado highlands<\/strong>. Weather radar and alerts should be monitored closely by anyone near the affected regions, especially those traveling through <strong>Larimer County<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Larimer County, in Northern Colorado, is facing a serious weather emergency this Thursday afternoon, as the National Weather Service in Denver issued a flash flood warning at 1:23 p.m. MDT. The alert is in effect through 4:30 p.m., with intense thunderstorms triggering heavy downpours across parts of the Cameron Peak Burn Scar, particularly within the [&hellip;]<\/p>\n","protected":false},"author":17,"featured_media":6438,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-6437","post","type-post","status-publish","format-standard","has-post-thumbnail","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Weather Colorado: Flash Flood Alert Hits Larimer County - United States - Weather America<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/weatheramerica.com\/us\/2025\/07\/25\/weather-colorado-flash-flood-alert-hits-larimer-county\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Weather Colorado: Flash Flood Alert Hits Larimer County - United States - Weather America\" \/>\n<meta property=\"og:description\" content=\"Larimer County, in Northern Colorado, is facing a serious weather emergency this Thursday afternoon, as the National Weather Service in Denver issued a flash flood warning at 1:23 p.m. MDT. The alert is in effect through 4:30 p.m., with intense thunderstorms triggering heavy downpours across parts of the Cameron Peak Burn Scar, particularly within the [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/weatheramerica.com\/us\/2025\/07\/25\/weather-colorado-flash-flood-alert-hits-larimer-county\/\" \/>\n<meta property=\"og:site_name\" content=\"United States - Weather America\" \/>\n<meta property=\"article:published_time\" content=\"2025-07-25T14:39:50+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/weatheramerica.com\/us\/wp-content\/uploads\/sites\/2\/2025\/07\/colorado-rain-2507.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2000\" \/>\n\t<meta property=\"og:image:height\" content=\"1500\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Liam Smith\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Liam Smith\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/weatheramerica.com\/us\/2025\/07\/25\/weather-colorado-flash-flood-alert-hits-larimer-county\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/weatheramerica.com\/us\/2025\/07\/25\/weather-colorado-flash-flood-alert-hits-larimer-county\/\"},\"author\":{\"name\":\"Liam Smith\",\"@id\":\"https:\/\/weatheramerica.com\/us\/#\/schema\/person\/d9b79a764c539fbe4d1ab6e9a31d7e72\"},\"headline\":\"Weather Colorado: Flash Flood Alert Hits Larimer County\",\"datePublished\":\"2025-07-25T14:39:50+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/weatheramerica.com\/us\/2025\/07\/25\/weather-colorado-flash-flood-alert-hits-larimer-county\/\"},\"wordCount\":399,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/weatheramerica.com\/us\/2025\/07\/25\/weather-colorado-flash-flood-alert-hits-larimer-county\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/weatheramerica.com\/us\/wp-content\/uploads\/sites\/2\/2025\/07\/colorado-rain-2507.jpg\",\"articleSection\":[\"News\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/weatheramerica.com\/us\/2025\/07\/25\/weather-colorado-flash-flood-alert-hits-larimer-county\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/weatheramerica.com\/us\/2025\/07\/25\/weather-colorado-flash-flood-alert-hits-larimer-county\/\",\"url\":\"https:\/\/weatheramerica.com\/us\/2025\/07\/25\/weather-colorado-flash-flood-alert-hits-larimer-county\/\",\"name\":\"Weather Colorado: Flash Flood Alert Hits Larimer County - 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