FHR - this is the forecast hour from the model you want to examine. There are currently five choices - avn, eta, meso, ngm, and ruc. The models must be in small letters. This will plot the 9 h forecast from the 1500 UTC 2 January 1999 RUC model. Mean sea level pressure - Thick, solid white lines, every 2 mb centered on 1000 mb.
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