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Though climatologically our temperatures should begin trending downward during the month of August, that won't be the case this week with hot weather expected to return and intensify across the Front Range through at least Friday. The culprit of this week's heatwave will be a familiar one for us --- a large ridge of high pressure which sets up shop …

The main story today is the enhanced potential for flash flooding in the early to late evening hours across all of Front Range Colorado, extending from the Wyoming border into New Mexico, as shown below.  Let's discuss all the details that will lead to this. Be sure to check the Boulder NWS forecast for any warnings that may be issued …

Tflow today will feature a series of shortwaves to our west and northwest, while ridging remains to our east in Kansas. The shortwave most prominent for us today will be ejecting out of Nevada into northern Utah this evening. While it will be far from us, it will aid in increasing moisture from the southwest. Highs will not be as …

Today will be all about the heat. The record high today in Boulder is 98°F and has a good chance of being tied or broken. With lots of morning and early afternoon sunshine, the hot airmass should allow 90s to take over before midday. We will, however, see an increase in clouds this afternoon and evening. As the mid-level ridge …

High pressure, which has flattened out a little out in the last 24 hours with the passage of yesterday's disturbance, will rebuild today and intensify as it moves slightly eastward over the remainder of the week. The GFS 500mb height anomaly forecast animation below shows the ridge's migration from the Four Corners this morning into southeast Colorado by Friday afternoon. …

High pressure remains the dominant weather feature across our area today, but an uptick in monsoon moisture will lead to a better chance of late-day showers and thunderstorms than we've seen over the last several days. GOES-East water vapor imagery below shows the center of the high is located along the Arizona-New Mexico border this morning, with counter-clockwise flow ushering …