The Arctic airmass arrived right on cue yesterday around 4:30PM alongside a cloud of dust. There was an initial temperature drop of 43° in one hour recorded at our station --- probably the largest ever one-hour decline on record (Boulder climate station does not keep hourly data, so we'll never know for sure...)! Temperatures have been tumbling further ever since …

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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