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Contact: Mari N. Jensen
University of Arizona

Winter Westerly Winds Shifting North

Caption: The late-winter/early-spring storm activity in the western US has shifted north since the late 1970s. This graphic shows how the peak winter storm tracks have shifted poleward since 1978. The blue line shows the storm track for February, March and April of 1978. The red line shows the track for the same months during the year 1997.

Credit: Stephanie McAfee, the University of Arizona, 2008.

Usage Restrictions: This image may be used only to accompany a story about the research described in this release. Credit must be given to: Stephanie McAfee, the University of Arizona, 2008.

Related news release: Drier, warmer springs in US Southwest stem from human-caused changes in winds

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