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A cool change in our weather to end the week, a great fall weather feel! Below show's the 800 mb temperature from the GFS from this morning. A cold front pushed through last night and, behind it, autumn temperatures have taken hold. We will still see lots of sunshine, but it will be a crisp and pleasant day in the …

A trough and upslope teamed-up last evening and overnight to bring fairly widespread showers the Metro area. There were even some thunderstorms due to the instability...I heard a few rumbles in Broomfield!  As promised, just about everyone saw "something", but totals in most locations were far from substantial (see below). A few showers still linger this morning, but model consensus has them …

The temperature in Boulder reached 90 degrees for the 8th straight day yesterday. This is a new September record and also the longest such streak in 2018! As we have been discussing all week, changes arrive later this evening as a trough moves across the state. Ahead of this, subtropical moisture and broad but weak lift will lead to chances …

End the heat We have one more 90-degree day to contend with before things cool-off as a trough clips the Front Range tomorrow evening. The GFS 800 mb temperature map below shows the very warm airmass in place across the southern Rockies. Today will transpire almost identically to yesterday. Morning sunshine will give way to fair-weather clouds through the day. The GFS …

Notice anything similar today compared to yesterday in the below 500 mb map? That's because there hasn't been any real change in the pattern. A ridge remains parked across Texas, with an upper-level trough over across Washington state. Warmth remains today with a good amount of sunshine once again. We should have no problem reaching near 90 again this afternoon. …

Another hot one out there today. Below shows the HRRR model predicted high temperatures this afternoon. It will be another great day to hit the mountains or enjoy other outdoor activities. For the Plains, we can expect highs in the lower 90's once again, with 50's and 60's over the higher terrain. The ridge of high pressure has moved little …

Another hot one today for mid September Below shows the mid-level pattern across the nation. Hurricane Florence is quite noticeable in the east. It will hug the coast today and slowly move southwestward by the evening. As of 6:00AM, it has just made landfall south of Wilmington, NC. Tremendous amounts of rain are possible, along with storm surge. Some areas of North …