This morning was the coldest of the year at BoulderCAST station (close to zero degrees). What does an Arctic airmass look like on a 800 mb temperature map? Check out the NAM forecast below for last night....the cold air is clearly banked up against the Foothills. Fortunately, this all changes today thanks to northwesterly downslope flow and a retreating high …

Ben Castellani

Ben Castellani

Ben grew up in southwestern Pennsylvania and holds both a bachelor's and a master's degree in Meteorology, the latter being from CU Boulder. His hometown received nearly three feet of snow from the Storm of the Century back in March of 1993, sparking his initial interest in impactful weather. Ben currently works on remote sensing and data analysis software at NV5 Geospatial Software in Boulder.

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