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Premium BoulderCAST Daily – Fri 09/13/24 | Cooling off slightly with smoke in the air

Yesterday's mid-level trough has pushed into far northeast Montana and Wyoming. As a result, the trough axis has largely pushed through much of Colorado. Southwesterly flow persists, however, over the state, favoring continued downslope flow aloft. At the surface, the trough has brought a cold front through the eastern part of the state. Gusty winds from yesterday are long gone, …

Premium This Weekend in Colorado Weather: Critical fire conditions, record heat, and none of the rain we desperately need

As we've been discussing all week long, today will be hot, dry and breezy --- three weather conditions that when coincident with Moderate to Severe Drought will breed critical fire concerns across much of the state from late morning through sunset on this Thursday. Winds should increase from late morning into early afternoon, peaking as high as 35 MPH at …

Premium BoulderCAST Daily – Wed 09/11/24 | Scattered PM storms today, hot & gusty with high fire danger Thursday

The mid-level trough in the Pacific Northwest is about to come ashore into Oregon this morning, as shown in the 500mb vorticity forecast animation below. Out ahead of the trough, southwest flow will slowly increase across Colorado today leading to some changes in our weather. Initially this southwest flow will contain above normal moisture content which will produce an uptick …

Premium BoulderCAST Daily – Tue 09/10/24 | Increasing clouds & smoke with a few isolated gusty showers around, a better chance of rain on Wednesday

Today's weather will be almost identical to Monday's with morning sunshine giving way to a few isolated high-based showers and storms later in the day. This morning's water vapor animation shows a belt of dry air draped across the southern half of the nation, but this doesn't include Colorado actually. In our neck of the woods, a weak shortwave disturbance …

Premium BoulderCAST Daily – Sun 09/08/24 | Watching the tropics but mild and quiet over us

Today will remain quiet with highs in the upper 80s for the Denver Metro area. The weather turns a little more active this coming week, however, as diurnal showers and storms are possible with a more favorable pattern and increased moisture from a few disturbances aloft. This is well predicted in the GEFS ensemble below. Of more importance nationally, the …

Premium BoulderCAST Daily – Sat 09/07/24 | Highs in the upper 80s this weekend

High temperatures this afternoon will be a mild upper 80s across the Denver Metro area. Expect plentiful sunshine under high pressure. Tonight, clear skies will promote lows again in the mid to upper 50s. While there is really no chance of rain today for us, folks in the south-central and southern mountains from Salida to Pueblo to Trinidad could see …

Premium BoulderCAST Daily – Fri 09/06/24 | Quiet and mild for our week’s end

High pressure ridging will be in place today and actually much of the weekend. The ridge will be just west of the Four Corners area. Meanwhile, troughing is present across the Great Lakes. That trough will aid below normal temperatures across the Mid-Atlantic this weekend as a cold front moves through. High pressure today will bring about plentiful sunshine today, …

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