Grizzcoat Posted January 4 Report Share Posted January 4 18Z GFS is off it's a rocker -- has nearly 1' of snow for C.IA Saturday. NWS DMX not buying in--- The next weather system to impact Iowa arrives Friday night and into Saturday as an upper low moves across Iowa and the surface low translates east across Missouri. Moisture availability into Iowa is the big question with a large area of high pressure situated just to the north and the primary Gulf moisture feed being cutoff to the south. The forecast still has light snow into central and southern Iowa but the deeper moisture likely will be south. Several deterministic 12z models runs including the ECMWF and NAM, are keeping Iowa mostly dry and ensembles are trending that way. The deterministic GFS is much more robust but it is also much further north with all base fields. Considering the high pressure to the north, the southern solutions are more plausible. 2 Quote The two loudest sounds known to man: a gun that goes bang when it is supposed to go click and a gun that goes click when it is supposed to go bang. Link to comment Share on other sites More sharing options...
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