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Premium BoulderCAST Daily – Sat 06/14/25 | Turning hot this weekend with limited storm chances

It is all about the heat this weekend and into early next week as a strong and hot ridge parks itself just to our south in Arizona. A hot and dry southwest flow will funnel lower to middle 90s over much of the Front Range, with lower 80s in the Foothills. Below shows a 48-hr animation of the HRRR model …

Premium BoulderCAST Daily – Fri 06/13/25 | Isolated storms with heat starting to build into the region

Amoist southwest flow will continue today. However, downslope flow at the surface will be more prevalent this afternoon and evening. That should favor less storm chances compared to our Thursday at about 10%. Below shows some energy will stream northeast from the Four Corners later this afternoon and evening. Highs ahead of any storms will be in the upper 80s, …

Premium This Weekend in Colorado Weather: Storms decline as the Front Range begins a sizzling heatwave

Weak westerly flow aloft continues over Colorado on Thursday, part of a broader clockwise atmospheric circulation around high pressure near the Baja. The high pressure is slowly drifting east and should settle near southern New Mexico by Sunday or Monday. As it does, it’s going to act like a shield—blocking out any big weather systems and bringing us warm, dry …

Premium BoulderCAST Daily – Wed 06/11/25 | Afternoon and evening storms return today and stick around through at least Friday

High pressure continues to slowly invade the southwestern United States which has ushered in a weak westerly flow to Colorado with more moisture flowing into the state than earlier in the week. The result will be our first real chance of rain today with spotty late-day storms developing in a more favorable environment. The HRRR model-simulated radar below shows storms …

Premium BoulderCAST Daily – Tue 06/10/25 | Gusty outflows but little to no rain from this evening’s convection

The morning will start off much like yesterday—dry air hovering over the Front Range, letting the sun shine in full force. But as the day moves along, moisture will gradually sneak in from the west, thanks to high pressure shifting ever so slightly eastward into the Four Corners region. That gentle westerly flow will help push out the bone-dry air …

Premium BoulderCAST Daily – Sun 06/08/25 | Isolated supercells in the cards today, mainly after 4PM

An overnight cold front has moved through northeast Colorado. Behind the front, low clouds have been forming slowly and working southward towards our area. The latest GOES-East satellite animation shows that thus far low clouds, depicted in white shading below, have only reached as far south as Cheyenne. This is well north of where models were showing. Latest model trends …

Premium BoulderCAST Daily – Sat 06/07/25 | Finally a (mostly) dry day!

After a rainy stretch all week long, we’re finally drying out—well, mostly. Today is the first day without any shortwave disturbances moving through, which means the Boulder-Denver area is in for warmer, drier weather this Saturday. Looking at the bigger picture, yesterday’s departing shortwave is pushing across the Great Plains, and the sinking air behind it will help keep storm …

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