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GFS 500mb Absolute Vorticity Map Unavailable
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About This Map

Absolute vorticity is the strength of rotation present at a given moment. Positive values represent counterclockwise rotation, and negative values represent clockwise rotation. Highly positive values often represent storm systems. On our weather maps, absolute vorticity is given in units of .00001 hertz.

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Map Status


Model Run Hour
GFS 18Z 384
GFS-HR 18Z 384
NAM 18Z 084
RAP 22Z 021
ECMWF 00Z 240
GEFS 18Z 204
CMC 12Z 240

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