The above GFS 500 mb forecast is at 196 hours, valid next Friday at 1200 UTC. Note that the morning run of the GFS was markedly different than the runs from 12 and 24 hours ago in that the strong S/W over the Mississippi Valley is now forecast to be progressive. A new and powerful S/W is now forecast to be digging down the West Coast. See Part 2 above for a comparison with the ECMWF.Friday, October 23, 2009
Big Changes in Pattern Likely Part 1
The above GFS 500 mb forecast is at 196 hours, valid next Friday at 1200 UTC. Note that the morning run of the GFS was markedly different than the runs from 12 and 24 hours ago in that the strong S/W over the Mississippi Valley is now forecast to be progressive. A new and powerful S/W is now forecast to be digging down the West Coast. See Part 2 above for a comparison with the ECMWF.
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