— A LOW<\/strong> flood threat has been issued for the Urban Corridor, Northwest Slope, Grand Valley, San Juan Mountains, Southwest Slope, & Southeast Mountains<\/em>
— Fire-Burn Forecast Summary:<\/strong> 3 burn areas under HIGH threat, 4 burn areas under MODERATE threat, 3 burn areas under LOW threat; click <\/em>HERE<\/a> for more info <\/em><\/p>\n
A few widely scattered<\/span> rain showers are ongoing this morning across portions of northwestern Colorado in association with the upper trough<\/span> centered over far northeast Utah. As the low moves southeast through Colorado today, moisture advection<\/span> and mid-level lift will accompany it. This morning, Grand Junction measured a PW<\/span> value of 1.03 inches, and Platteville measured a similar PW<\/span> value of 1 inch, indicating plentiful column moisture. Surface dewpoints ranging from the mid-40s to mid-50s°F indicate sufficient moisture through the boundary layer<\/span> for storms to utilize this afternoon.<\/p>\n That said, cloud cover and the early rain showers are expected to keep instability fairly limited across the northern portions of the state. Greater clearing further south should allow instability to reach forecast values between 1000-1500 across central Colorado this afternoon. Additionally, the midlevel energy from the deepening Low is forecast to reach central Colorado by early afternoon, by which point numerous<\/span> rain showers are anticipated to overspread much of the higher elevations west of the Continental Divide<\/span>. A few of these storms may spill onto the adjacent foothills and Urban Corridor. Upper-level steering flow is anticipated to be quite slow, perhaps only 5 to 10mph, so storms that form are expected to be slow-moving and thus produce a couple to several hours of rainfall.<\/p>\n The greatest concern for heavy rainfall and flooding potential exists over the higher elevations of central and western Colorado where storms are more likely to anchor to the higher terrain given the slow steering speeds. As mentioned, a few storms may drift onto the adjacent foothills and produce isolated<\/span>, locally heavy rainfall as well. A MODERATE flood threat has been issued for portions of central and northern Colorado, and a LOW flood threat for mainly mountainous areas south and west.<\/p>\n
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