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Seven straight 90-degree days is about to become eight The saga of heat continues today across the region with temperatures likely to climb a few degrees warmer than yesterday. At BoulderCAST Station, we hit a hot (but not that hot) 96 degrees on Wednesday. The mid-level ridge remains centered across Arizona and New Mexico, with just weak southwesterly flow over …

Storms chances wane while heat intensifies The atmosphere is quickly drying out across the state as westerly downslope flow helps to push low-level moisture eastward into Kansas. With well below 0.5" of precipitable water available this afternoon, chances for storms have dwindled considerably for the Metro area. We may see one or two very weak showers or storms develop across …

Heat wave in-bound! We can trace the formation of the ridge of high pressure across the Four Corners region back nearly a full week ago. Despite the hit-or-miss nature of recent thunderstorms, one thing has stayed the course during this time --- the heat. Boulder is currently riding a streak of five consecutive days of 90-degree temperatures. The bad news: this streak …

More above normal temperatures and storms Today will be the last day in which a strong and clearly defined ridge will be present across the Four Corners region as weak troughing is shifting into the Pacific Northwest. The position of the ridge so far has actually helped keep our temperatures from getting extremely hot with west or even northwest flow …

Summer is in full swing! Another hot one today before clouds and scattered storms develop similar to yesterday. The ridge of high pressure shifts only slightly to the south today in contrast to Friday. That, in turn, will allow moisture to increase from the west-southwest (below), as noted by the green shaded contours. The moisture will further increase tomorrow, elevating …

A long stretch of hot and stormy weather The ridge of high pressure remains centered across southern Colorado today and this will be the case into early next week. The animation of GFS model 500 mb height anomaly below goes through Monday night. While the ridge does weaken as a trough dips across the Pacific Northwest Sunday into Monday, it …

Hot & sunny High pressure continues to build across Colorado today with 700 mb temperatures soaring to near 18°C over the area. Given this capping very warm air aloft, high pressure, and precipitable water values only around 0.5", we're once again thinking the entire area will be dry again today. Expect mostly sunny skies with a few cumulus clouds rolling off the …