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Archive: Dec 2011

Winter Storm in the Southern Plains

A potent winter storm moved into the southern Plains on 19 December 2011 as a cut-off circulation off the west coast of the US opened up and moved eastward. GOES water Vapor imagery (looped, above) shows a distinct dry slot. Stationary terrain features in the Cordillera of Northern Mexico are... Read More

Strong winds affect southcentral and eastern Alaska

McIDAS images of 4-km resolution GOES-15 6.5 µm water vapor channel data (above; click image to play animation) showed an intense upper level shortwave trough of low pressure moving northeastward across southcentral and eastern Alaska on 18 December 2011. Strong southerly flow associated with this system brought unseasonably warm air... Read More