Although much drier air has begun to infiltrate into western Colorado, significant moisture will remain over the next 12-18 hours east of the Continental Divide<\/span>. This will support another round of potentially heavy rainfall this afternoon and evening, although coverage will be lower than seen on Friday. The water vapor image, below, shows a pronounced disturbance draped across northern Colorado. This disturbance will move southeast today, causing a weak surface low to develop along the NM\/CO border. Precipitable Water<\/span> (PW<\/span>) has dropped to 0.74 inches at Grand Junction and 0.69 inches in Denver this morning and will continue to drop across most of the state. However, along the southeast Colorado border with KS, OK and NM, PW<\/span> is greater than 1 inch and will hold steady or even slightly increase as the aforementioned surface low causes easterly flow to advect moisture back into the state. This morning’s sounding from Dodge City, KS, showed a PW<\/span> of 1.86 inches, which is near the all-time September record here. At least some of this will be drawn into CO this afternoon. Morning sunshine will boost temperatures, allowing for instability up to 1,600 J\/kg in a narrow axis along and just east of I-25, south of Colorado Springs. Storm motion will be slightly faster over the Palmer Ridge, which will mitigate point rainfall here. Slower storm motion towards the NM border will allow for higher rainfall accumulations, warranting a LOW flood threat for this limited area. In addition to heavy rainfall, severe weather, in the form of large hail over 1 inch and damaging winds, will also be possible with the strongest storms.<\/p>\n Elsewhere, mainly dry weather and seasonably warm temperatures are expected, setting up a beautiful late summer Saturday (or early fall, depending on your preference of meteorological versus astronomical bookkeeping).<\/p>\n
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