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Ridge of high pressure will be over the Four Corners today. The airmass is largely unchanged from yesterday, if not a tad warmer. The ridge overhead will again suppress most convection, allowing abundant sunshine to lead to very hot temperatures. Our NowCAST is shown below for Denver, with highs well into the upper 90s during the late afternoon to early …

Today will offer the coolest temperatures and best chance of rain for the week across the Front Range! GOES-East mid-level water vapor imagery this morning shows the large-scale setup. The broad dome of high pressure continues to be the dominant feature across the Four Corners region --- it is currently located in east-central Arizona. Clockwise flow around this well-defined ridge …

Boulder's official high temperature on Monday was once again 99°F, one degree shy of the record value for the date. We've now hit 99° eight different times since the last 100° day back in July of 2020, including on three occasions so far in 2022. Denver International Airport briefly touched 100° eclipsing the old record high for the day. Other …

Amid-level ridge will move east today and set up shop largely over western Colorado. As a result, the forecast turns fairly dry as the ridge favors more stable air and drier conditions in terms of moisture content. The mid-level ridge will move east somewhat by this evening but largely remain stagnant. Precipitable water values today have dried out considerably, relative …

Amid-level shortwave will track east-southeast from the central Plains and Colorado into southeastern sections of Colorado tonight and into the Midwest. The shortwave over Colorado will weaken as it moves southeast this evening, but will still provide forcing for showers/storms later today. At the surface, there is a convergence boundary extending from northeast Colorado to just south of the Denver …

Astrong mid-level shortwave will traverse the northern end of the ridge this afternoon and evening, tracking from northwest Colorado into north-central Colorado/eastern Wyoming tonight. Ahead of it, temperatures will warm into the low to middle 90s as clouds increase through the afternoon/evening. Showers/storms will become increasingly likely as the day wears on. It's worth sharing that precipitable water values today …