A complex of storms helped drive a cool front southward across eastern Colorado overnight with temperatures this morning measuring 5-10 F lower compared to yesterday morning. Moisture content has also dropped essentially statewide with morning PW<\/span> at Denver measuring in at 0.57 inches (right in line with the seasonal normal), but a paltry 0.37 inches at Grand Junction. Most of the state will experience mostly sunny and pleasant weather today with temperatures running a bit below normal over eastern areas and slightly above normal over the western slope.<\/p>\n The only area of concern for heavy rainfall today will be over the Raton Ridge and surrounding areas. A strong moisture gradient was noted this morning, as shown in the PW<\/span> analysis below. Although Denver’s PW<\/span> is near normal, the PW<\/span> at Amarillo, TX was an impressive 1.60 inches, a near record level for early June. With a building ridge overhead, steering flow will weaken considerably today compared to yesterday. In turn, this will allow for our normal topographically-driven circulation to take over. Over southeast Colorado, weak northerly flow seen at lower levels this morning will be replaced by upslope east\/southeasterly flow this afternoon, allowing the maintenance of dewpoints in the 48F+ range (along with PW<\/span> of 0.8-0.9 inches). With CAPE<\/span> instability up to 1,500 J\/kg, slow moving storms will be capable of heavy rainfall, albeit with relatively limited duration. Nonetheless, 30-60 minute accumulation potential of 1.2-1.5 inches, respectively, exceeds our flash flood<\/span> guidance for the region. Thus, a LOW flood threat has been posted for isolated<\/span> flash flooding<\/span>, along with debris slides and mud flows over steeper terrain. Storms should dissipate by late evening.<\/p>\n
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