April 4, 2003 – 500 mb heights and vorticity
Notes:
At 500 mb, westerly flow formed a strong confluent zone across eastern Canada and northern New England. An upper level trough moved slowly east across the mid-west.|
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Valid Fri 1800 UTC 04-Apr-2003 Valid Sat 0000 UTC 05-Apr-2003 |
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Slide 13