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DayCAST: Sat 02/10/18

February 10, 2018 / Andy

All is on track today following yesterday's snowfall forecast. Bitter cold air has entrenched the region. We don't expect much of a warm-up either today given the clouds, light snow, and arctic air in place. Highs will remain in the low 20's for much of the day, dropping into the lower teens and some single digits overnight. Below shows the …

DayCAST: Fri 02/09/18

February 9, 2018 / Andy

Arctic front has oozed through the region this morning. Temperatures are hovering in the 20's freezing fog and low clouds in place. Expect isolated light freezing drizzle to be with us during the morning hours. Given that, there may be slick spots on the roadways and sidewalks, so do be careful if you are headed out for the beginning of …

DayCAST: Thu 02/08/18

February 8, 2018 / Ben Castellani

Westerly downslope ahead of our next weather system will warm the region today into the lower 60's this afternoon. Skies will be filled with wave clouds due to mid-level moisture and strong WNW winds aloft. Some of these winds will make it down onto the Plains gusting to 25 mph at times during the day and evening. Models currently diverge on the …

DayCAST: Wed 02/07/18

February 7, 2018 / Ben Castellani

Today: Sunny skies and temperatures in the middle 50's. Tomorrow: Partly cloudy and warm. Highs in the lower to middle 60's. Friday: Easterly flow will lead to cooler temperatures, but still no precipitation. Expect mostly cloudy conditions with highs in the 50's. The bottom falls out on Saturday: The main cold front could arrive as early as Friday evening, or …

DayCAST: Tue 02/06/18

February 6, 2018 / Ben Castellani

Snowfall totals across the region range from 1 to 3" in the highest Foothills along Peak to Peak highway, with almost no snow accumulation reported elsewhere in the Metro area. At BoulderCAST Station, we has several short periods of flurries overnight, but not quite enough to count as 0.1" of accumulation. The overnight radar loop shows the heavy jet-forced bands …

Premium Storm Update Ensembles are out to lunch for tonight’s snow!

February 5, 2018 / Ben Castellani

The operational GFS model has consistently forecast little to no snowfall for tonight's storm for the lower elevations, including Boulder and Denver... On the other hand, the GFS ensemble members have been telling a much snowier story for several days now. The four-panel plot below shows snowfall plumes for Denver from the GEFS ensemble runs from yesterday morning (top left), last evening …

DayCAST: Sun 02/04/18

February 4, 2018 / Andy

The Arctic cold front is right on schedule, as mentioned in our DayCAST yesterday. The below image shows the HRRR regional model forecast for surface temperatures as of 5:00 AM this morning. The frontal position just to our north and east. Expect temperatures to quickly fall into the teens behind the front, but then rebound into the mid 30's in the …