Category Archives: Winter Weather

Arctic Blast in the Upper Midwest

A cold arctic air mass moved into the Upper Midwest the past two days (29-30 September 2019), providing extreme cold temperatures for several states, including North Dakota, Minnesota, Wisconsin, South Dakota, Iowa, and Illinois. Along with high winds, the calculated, … Continue reading

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WS Harper Impacts on Northeast US

As Winter Storm Harper passed through the northeast United States, the storm brought heavy precipitation in the forms of snow, rain, and freezing rain that produced significant ice accumulation on the ground. Storm total snowfall, rainfall and ice accumulations were … Continue reading

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New Mexico Snowstorm

Due to an upper-level disturbance passing through the southwestern United States, abundant snowfall has fallen in New Mexico, southwestern Colorado and parts of Texas (see social media snowfall image here). Snow totals range from a few inches to 16 inches at … Continue reading

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21 November 2018 Snow Squall event in upstate New York

On 21 November 2018 a cold front moved through upstate New York with an associated band of heavier snow, as seen in this WSR-88D reflectivity image: Note the narrow region of higher reflectivities extending from near Syracuse northeastward.  This snowband … Continue reading

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Synthetic imagery from the NSSL WRF-ARW for 7 March 2018 event

A nor’easter occurred on 7 March 2018 which resulted in heavy snow, strong winds and rain across portions of the Northeast U.S.  In this blog entry we’ll examine the performance of the NSSL WRF-ARW via synthetic water vapor imagery in … Continue reading

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